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-rw-r--r--src/backup.h43
-rw-r--r--src/cache.c375
-rw-r--r--src/cache.h73
-rw-r--r--src/connection.c1704
-rw-r--r--src/connection.h138
-rw-r--r--src/cursor.c1126
-rw-r--r--src/cursor.h74
-rw-r--r--src/microprotocols.c142
-rw-r--r--src/microprotocols.h55
-rw-r--r--src/module.c464
-rw-r--r--src/module.h58
-rw-r--r--src/prepare_protocol.c84
-rw-r--r--src/prepare_protocol.h41
-rw-r--r--src/row.c256
-rw-r--r--src/row.h39
-rw-r--r--src/sqlitecompat.h63
-rw-r--r--src/statement.c543
-rw-r--r--src/statement.h59
-rw-r--r--src/util.c106
-rw-r--r--src/util.h38
20 files changed, 5481 insertions, 0 deletions
diff --git a/src/backup.h b/src/backup.h
new file mode 100644
index 0000000..10720f0
--- /dev/null
+++ b/src/backup.h
@@ -0,0 +1,43 @@
+/* backup.h - definitions for the backup type
+ *
+ * Copyright (C) 2010 Gerhard Häring <gh@ghaering.de>
+ *
+ * This file is part of pysqlite.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#ifndef PYSQLITE_BACKUP_H
+#define PYSQLITE_BACKUP_H
+#include "Python.h"
+
+#include "sqlite3.h"
+#include "connection.h"
+
+typedef struct
+{
+ PyObject_HEAD
+ sqlite3_backup* backup;
+ pysqlite_Connection* source_con;
+ pysqlite_Connection* dest_con;
+} pysqlite_Backup;
+
+extern PyTypeObject pysqlite_BackupType;
+
+int pysqlite_backup_setup_types(void);
+
+#endif
diff --git a/src/cache.c b/src/cache.c
new file mode 100644
index 0000000..0653367
--- /dev/null
+++ b/src/cache.c
@@ -0,0 +1,375 @@
+/* cache .c - a LRU cache
+ *
+ * Copyright (C) 2004-2010 Gerhard Häring <gh@ghaering.de>
+ *
+ * This file is part of pysqlite.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#include "sqlitecompat.h"
+#include "cache.h"
+#include <limits.h>
+
+/* only used internally */
+pysqlite_Node* pysqlite_new_node(PyObject* key, PyObject* data)
+{
+ pysqlite_Node* node;
+
+ node = (pysqlite_Node*) (pysqlite_NodeType.tp_alloc(&pysqlite_NodeType, 0));
+ if (!node) {
+ return NULL;
+ }
+
+ Py_INCREF(key);
+ node->key = key;
+
+ Py_INCREF(data);
+ node->data = data;
+
+ node->prev = NULL;
+ node->next = NULL;
+
+ return node;
+}
+
+void pysqlite_node_dealloc(pysqlite_Node* self)
+{
+ Py_DECREF(self->key);
+ Py_DECREF(self->data);
+
+ Py_TYPE(self)->tp_free((PyObject*)self);
+}
+
+int pysqlite_cache_init(pysqlite_Cache* self, PyObject* args, PyObject* kwargs)
+{
+ PyObject* factory;
+ int size = 10;
+
+ self->factory = NULL;
+
+ if (!PyArg_ParseTuple(args, "O|i", &factory, &size)) {
+ return -1;
+ }
+
+ /* minimum cache size is 5 entries */
+ if (size < 5) {
+ size = 5;
+ }
+ self->size = size;
+ self->first = NULL;
+ self->last = NULL;
+
+ self->mapping = PyDict_New();
+ if (!self->mapping) {
+ return -1;
+ }
+
+ Py_INCREF(factory);
+ self->factory = factory;
+
+ self->decref_factory = 1;
+
+ return 0;
+}
+
+void pysqlite_cache_dealloc(pysqlite_Cache* self)
+{
+ pysqlite_Node* node;
+ pysqlite_Node* delete_node;
+
+ if (!self->factory) {
+ /* constructor failed, just get out of here */
+ return;
+ }
+
+ /* iterate over all nodes and deallocate them */
+ node = self->first;
+ while (node) {
+ delete_node = node;
+ node = node->next;
+ Py_DECREF(delete_node);
+ }
+
+ if (self->decref_factory) {
+ Py_DECREF(self->factory);
+ }
+ Py_DECREF(self->mapping);
+
+ Py_TYPE(self)->tp_free((PyObject*)self);
+}
+
+PyObject* pysqlite_cache_get(pysqlite_Cache* self, PyObject* args)
+{
+ PyObject* key = args;
+ pysqlite_Node* node;
+ pysqlite_Node* ptr;
+ PyObject* data;
+
+ node = (pysqlite_Node*)PyDict_GetItem(self->mapping, key);
+ if (node) {
+ /* an entry for this key already exists in the cache */
+
+ /* increase usage counter of the node found */
+ if (node->count < LONG_MAX) {
+ node->count++;
+ }
+
+ /* if necessary, reorder entries in the cache by swapping positions */
+ if (node->prev && node->count > node->prev->count) {
+ ptr = node->prev;
+
+ while (ptr->prev && node->count > ptr->prev->count) {
+ ptr = ptr->prev;
+ }
+
+ if (node->next) {
+ node->next->prev = node->prev;
+ } else {
+ self->last = node->prev;
+ }
+ if (node->prev) {
+ node->prev->next = node->next;
+ }
+ if (ptr->prev) {
+ ptr->prev->next = node;
+ } else {
+ self->first = node;
+ }
+
+ node->next = ptr;
+ node->prev = ptr->prev;
+ if (!node->prev) {
+ self->first = node;
+ }
+ ptr->prev = node;
+ }
+ } else {
+ /* There is no entry for this key in the cache, yet. We'll insert a new
+ * entry in the cache, and make space if necessary by throwing the
+ * least used item out of the cache. */
+
+ if (PyDict_Size(self->mapping) == self->size) {
+ if (self->last) {
+ node = self->last;
+
+ if (PyDict_DelItem(self->mapping, self->last->key) != 0) {
+ return NULL;
+ }
+
+ if (node->prev) {
+ node->prev->next = NULL;
+ }
+ self->last = node->prev;
+ node->prev = NULL;
+
+ Py_DECREF(node);
+ }
+ }
+
+ data = PyObject_CallFunction(self->factory, "O", key);
+
+ if (!data) {
+ return NULL;
+ }
+
+ node = pysqlite_new_node(key, data);
+ if (!node) {
+ return NULL;
+ }
+ node->prev = self->last;
+
+ Py_DECREF(data);
+
+ if (PyDict_SetItem(self->mapping, key, (PyObject*)node) != 0) {
+ Py_DECREF(node);
+ return NULL;
+ }
+
+ if (self->last) {
+ self->last->next = node;
+ } else {
+ self->first = node;
+ }
+ self->last = node;
+ }
+
+ Py_INCREF(node->data);
+ return node->data;
+}
+
+PyObject* pysqlite_cache_display(pysqlite_Cache* self, PyObject* args)
+{
+ pysqlite_Node* ptr;
+ PyObject* prevkey;
+ PyObject* nextkey;
+ PyObject* fmt_args;
+ PyObject* template;
+ PyObject* display_str;
+
+ ptr = self->first;
+
+ while (ptr) {
+ if (ptr->prev) {
+ prevkey = ptr->prev->key;
+ } else {
+ prevkey = Py_None;
+ }
+ Py_INCREF(prevkey);
+
+ if (ptr->next) {
+ nextkey = ptr->next->key;
+ } else {
+ nextkey = Py_None;
+ }
+ Py_INCREF(nextkey);
+
+ fmt_args = Py_BuildValue("OOO", prevkey, ptr->key, nextkey);
+ if (!fmt_args) {
+ return NULL;
+ }
+ template = PyString_FromString("%s <- %s ->%s\n");
+ if (!template) {
+ Py_DECREF(fmt_args);
+ return NULL;
+ }
+ display_str = PyString_Format(template, fmt_args);
+ Py_DECREF(template);
+ Py_DECREF(fmt_args);
+ if (!display_str) {
+ return NULL;
+ }
+ PyObject_Print(display_str, stdout, Py_PRINT_RAW);
+ Py_DECREF(display_str);
+
+ Py_DECREF(prevkey);
+ Py_DECREF(nextkey);
+
+ ptr = ptr->next;
+ }
+
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+static PyMethodDef cache_methods[] = {
+ {"get", (PyCFunction)pysqlite_cache_get, METH_O,
+ PyDoc_STR("Gets an entry from the cache or calls the factory function to produce one.")},
+ {"display", (PyCFunction)pysqlite_cache_display, METH_NOARGS,
+ PyDoc_STR("For debugging only.")},
+ {NULL, NULL}
+};
+
+PyTypeObject pysqlite_NodeType = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ MODULE_NAME "Node", /* tp_name */
+ sizeof(pysqlite_Node), /* tp_basicsize */
+ 0, /* tp_itemsize */
+ (destructor)pysqlite_node_dealloc, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ 0, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ 0, /* tp_call */
+ 0, /* tp_str */
+ 0, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, /* tp_flags */
+ 0, /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ 0, /* tp_methods */
+ 0, /* tp_members */
+ 0, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+ 0, /* tp_dictoffset */
+ (initproc)0, /* tp_init */
+ 0, /* tp_alloc */
+ 0, /* tp_new */
+ 0 /* tp_free */
+};
+
+PyTypeObject pysqlite_CacheType = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ MODULE_NAME ".Cache", /* tp_name */
+ sizeof(pysqlite_Cache), /* tp_basicsize */
+ 0, /* tp_itemsize */
+ (destructor)pysqlite_cache_dealloc, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ 0, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ 0, /* tp_call */
+ 0, /* tp_str */
+ 0, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, /* tp_flags */
+ 0, /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ cache_methods, /* tp_methods */
+ 0, /* tp_members */
+ 0, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+ 0, /* tp_dictoffset */
+ (initproc)pysqlite_cache_init, /* tp_init */
+ 0, /* tp_alloc */
+ 0, /* tp_new */
+ 0 /* tp_free */
+};
+
+extern int pysqlite_cache_setup_types(void)
+{
+ int rc;
+
+ pysqlite_NodeType.tp_new = PyType_GenericNew;
+ pysqlite_CacheType.tp_new = PyType_GenericNew;
+
+ rc = PyType_Ready(&pysqlite_NodeType);
+ if (rc < 0) {
+ return rc;
+ }
+
+ rc = PyType_Ready(&pysqlite_CacheType);
+ return rc;
+}
diff --git a/src/cache.h b/src/cache.h
new file mode 100644
index 0000000..b09517c
--- /dev/null
+++ b/src/cache.h
@@ -0,0 +1,73 @@
+/* cache.h - definitions for the LRU cache
+ *
+ * Copyright (C) 2004-2010 Gerhard Häring <gh@ghaering.de>
+ *
+ * This file is part of pysqlite.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#ifndef PYSQLITE_CACHE_H
+#define PYSQLITE_CACHE_H
+#include "Python.h"
+
+/* The LRU cache is implemented as a combination of a doubly-linked with a
+ * dictionary. The list items are of type 'Node' and the dictionary has the
+ * nodes as values. */
+
+typedef struct _pysqlite_Node
+{
+ PyObject_HEAD
+ PyObject* key;
+ PyObject* data;
+ long count;
+ struct _pysqlite_Node* prev;
+ struct _pysqlite_Node* next;
+} pysqlite_Node;
+
+typedef struct
+{
+ PyObject_HEAD
+ int size;
+
+ /* a dictionary mapping keys to Node entries */
+ PyObject* mapping;
+
+ /* the factory callable */
+ PyObject* factory;
+
+ pysqlite_Node* first;
+ pysqlite_Node* last;
+
+ /* if set, decrement the factory function when the Cache is deallocated.
+ * this is almost always desirable, but not in the pysqlite context */
+ int decref_factory;
+} pysqlite_Cache;
+
+extern PyTypeObject pysqlite_NodeType;
+extern PyTypeObject pysqlite_CacheType;
+
+int pysqlite_node_init(pysqlite_Node* self, PyObject* args, PyObject* kwargs);
+void pysqlite_node_dealloc(pysqlite_Node* self);
+
+int pysqlite_cache_init(pysqlite_Cache* self, PyObject* args, PyObject* kwargs);
+void pysqlite_cache_dealloc(pysqlite_Cache* self);
+PyObject* pysqlite_cache_get(pysqlite_Cache* self, PyObject* args);
+
+int pysqlite_cache_setup_types(void);
+
+#endif
diff --git a/src/connection.c b/src/connection.c
new file mode 100644
index 0000000..481b9b5
--- /dev/null
+++ b/src/connection.c
@@ -0,0 +1,1704 @@
+/* connection.c - the connection type
+ *
+ * Copyright (C) 2004-2010 Gerhard Häring <gh@ghaering.de>
+ *
+ * This file is part of pysqlite.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#include "cache.h"
+#include "module.h"
+#include "connection.h"
+#include "statement.h"
+#include "cursor.h"
+#include "prepare_protocol.h"
+#include "util.h"
+#include "sqlitecompat.h"
+
+#ifdef PYSQLITE_EXPERIMENTAL
+#include "backup.h"
+#endif
+
+#include "pythread.h"
+
+#define ACTION_FINALIZE 1
+#define ACTION_RESET 2
+
+#if SQLITE_VERSION_NUMBER >= 3003008
+#ifndef SQLITE_OMIT_LOAD_EXTENSION
+#define HAVE_LOAD_EXTENSION
+#endif
+#endif
+
+static int pysqlite_connection_set_isolation_level(pysqlite_Connection* self, PyObject* isolation_level);
+static void _pysqlite_drop_unused_cursor_references(pysqlite_Connection* self);
+
+
+static void _sqlite3_result_error(sqlite3_context* ctx, const char* errmsg, int len)
+{
+ /* in older SQLite versions, calling sqlite3_result_error in callbacks
+ * triggers a bug in SQLite that leads either to irritating results or
+ * segfaults, depending on the SQLite version */
+#if SQLITE_VERSION_NUMBER >= 3003003
+ sqlite3_result_error(ctx, errmsg, len);
+#else
+ PyErr_SetString(pysqlite_OperationalError, errmsg);
+#endif
+}
+
+int pysqlite_connection_init(pysqlite_Connection* self, PyObject* args, PyObject* kwargs)
+{
+ static char *kwlist[] = {"database", "timeout", "detect_types", "isolation_level", "check_same_thread", "factory", "cached_statements", NULL, NULL};
+
+ PyObject* database;
+ int detect_types = 0;
+ PyObject* isolation_level = NULL;
+ PyObject* factory = NULL;
+ int check_same_thread = 1;
+ int cached_statements = 100;
+ double timeout = 5.0;
+ int rc;
+ PyObject* class_attr = NULL;
+ PyObject* class_attr_str = NULL;
+ int is_apsw_connection = 0;
+ PyObject* database_utf8;
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|diOiOi", kwlist,
+ &database, &timeout, &detect_types, &isolation_level, &check_same_thread, &factory, &cached_statements))
+ {
+ return -1;
+ }
+
+ self->initialized = 1;
+
+ self->begin_statement = NULL;
+
+ self->statement_cache = NULL;
+ self->statements = NULL;
+ self->cursors = NULL;
+
+ Py_INCREF(Py_None);
+ self->row_factory = Py_None;
+
+ Py_INCREF(&PyUnicode_Type);
+ self->text_factory = (PyObject*)&PyUnicode_Type;
+
+ if (PyString_Check(database) || PyUnicode_Check(database)) {
+ if (PyString_Check(database)) {
+ database_utf8 = database;
+ Py_INCREF(database_utf8);
+ } else {
+ database_utf8 = PyUnicode_AsUTF8String(database);
+ if (!database_utf8) {
+ return -1;
+ }
+ }
+
+ Py_BEGIN_ALLOW_THREADS
+ rc = sqlite3_open(PyString_AsString(database_utf8), &self->db);
+ Py_END_ALLOW_THREADS
+
+ Py_DECREF(database_utf8);
+
+ if (rc != SQLITE_OK) {
+ _pysqlite_seterror(self->db, NULL);
+ return -1;
+ }
+ } else {
+ /* Create a pysqlite connection from a APSW connection */
+ class_attr = PyObject_GetAttrString(database, "__class__");
+ if (class_attr) {
+ class_attr_str = PyObject_Str(class_attr);
+ if (class_attr_str) {
+ if (strcmp(PyString_AsString(class_attr_str), "<type 'apsw.Connection'>") == 0) {
+ /* In the APSW Connection object, the first entry after
+ * PyObject_HEAD is the sqlite3* we want to get hold of.
+ * Luckily, this is the same layout as we have in our
+ * pysqlite_Connection */
+ self->db = ((pysqlite_Connection*)database)->db;
+
+ Py_INCREF(database);
+ self->apsw_connection = database;
+ is_apsw_connection = 1;
+ }
+ }
+ }
+ Py_XDECREF(class_attr_str);
+ Py_XDECREF(class_attr);
+
+ if (!is_apsw_connection) {
+ PyErr_SetString(PyExc_ValueError, "database parameter must be string or APSW Connection object");
+ return -1;
+ }
+ }
+
+ if (!isolation_level) {
+ isolation_level = PyString_FromString("");
+ if (!isolation_level) {
+ return -1;
+ }
+ } else {
+ Py_INCREF(isolation_level);
+ }
+ self->isolation_level = NULL;
+ pysqlite_connection_set_isolation_level(self, isolation_level);
+ Py_DECREF(isolation_level);
+
+ self->statement_cache = (pysqlite_Cache*)PyObject_CallFunction((PyObject*)&pysqlite_CacheType, "Oi", self, cached_statements);
+ if (PyErr_Occurred()) {
+ return -1;
+ }
+
+ self->created_statements = 0;
+ self->created_cursors = 0;
+
+ /* Create lists of weak references to statements/cursors */
+ self->statements = PyList_New(0);
+ self->cursors = PyList_New(0);
+ if (!self->statements || !self->cursors) {
+ return -1;
+ }
+
+ /* By default, the Cache class INCREFs the factory in its initializer, and
+ * decrefs it in its deallocator method. Since this would create a circular
+ * reference here, we're breaking it by decrementing self, and telling the
+ * cache class to not decref the factory (self) in its deallocator.
+ */
+ self->statement_cache->decref_factory = 0;
+ Py_DECREF(self);
+
+ self->inTransaction = 0;
+ self->detect_types = detect_types;
+ self->timeout = timeout;
+ (void)sqlite3_busy_timeout(self->db, (int)(timeout*1000));
+#ifdef WITH_THREAD
+ self->thread_ident = PyThread_get_thread_ident();
+#endif
+ self->check_same_thread = check_same_thread;
+
+ self->function_pinboard = PyDict_New();
+ if (!self->function_pinboard) {
+ return -1;
+ }
+
+ self->collations = PyDict_New();
+ if (!self->collations) {
+ return -1;
+ }
+
+ self->Warning = pysqlite_Warning;
+ self->Error = pysqlite_Error;
+ self->InterfaceError = pysqlite_InterfaceError;
+ self->DatabaseError = pysqlite_DatabaseError;
+ self->DataError = pysqlite_DataError;
+ self->OperationalError = pysqlite_OperationalError;
+ self->IntegrityError = pysqlite_IntegrityError;
+ self->InternalError = pysqlite_InternalError;
+ self->ProgrammingError = pysqlite_ProgrammingError;
+ self->NotSupportedError = pysqlite_NotSupportedError;
+
+ return 0;
+}
+
+/* Empty the entire statement cache of this connection */
+void pysqlite_flush_statement_cache(pysqlite_Connection* self)
+{
+ pysqlite_Node* node;
+ pysqlite_Statement* statement;
+
+ node = self->statement_cache->first;
+
+ while (node) {
+ statement = (pysqlite_Statement*)(node->data);
+ (void)pysqlite_statement_finalize(statement);
+ node = node->next;
+ }
+
+ Py_DECREF(self->statement_cache);
+ self->statement_cache = (pysqlite_Cache*)PyObject_CallFunction((PyObject*)&pysqlite_CacheType, "O", self);
+ Py_DECREF(self);
+ self->statement_cache->decref_factory = 0;
+}
+
+/* action in (ACTION_RESET, ACTION_FINALIZE) */
+void pysqlite_do_all_statements(pysqlite_Connection* self, int action, int reset_cursors)
+{
+ int i;
+ PyObject* weakref;
+ PyObject* statement;
+ pysqlite_Cursor* cursor;
+
+ for (i = 0; i < PyList_Size(self->statements); i++) {
+ weakref = PyList_GetItem(self->statements, i);
+ statement = PyWeakref_GetObject(weakref);
+ if (statement != Py_None) {
+ if (action == ACTION_RESET) {
+ (void)pysqlite_statement_reset((pysqlite_Statement*)statement);
+ } else {
+ (void)pysqlite_statement_finalize((pysqlite_Statement*)statement);
+ }
+ }
+ }
+
+ if (reset_cursors) {
+ for (i = 0; i < PyList_Size(self->cursors); i++) {
+ weakref = PyList_GetItem(self->cursors, i);
+ cursor = (pysqlite_Cursor*)PyWeakref_GetObject(weakref);
+ if ((PyObject*)cursor != Py_None) {
+ cursor->reset = 1;
+ }
+ }
+ }
+}
+
+void pysqlite_connection_dealloc(pysqlite_Connection* self)
+{
+ PyObject* ret = NULL;
+
+ Py_XDECREF(self->statement_cache);
+
+ /* Clean up if user has not called .close() explicitly. */
+ if (self->db) {
+ Py_BEGIN_ALLOW_THREADS
+ sqlite3_close(self->db);
+ Py_END_ALLOW_THREADS
+ } else if (self->apsw_connection) {
+ ret = PyObject_CallMethod(self->apsw_connection, "close", "");
+ Py_XDECREF(ret);
+ Py_XDECREF(self->apsw_connection);
+ }
+
+ if (self->begin_statement) {
+ PyMem_Free(self->begin_statement);
+ }
+ Py_XDECREF(self->isolation_level);
+ Py_XDECREF(self->function_pinboard);
+ Py_XDECREF(self->row_factory);
+ Py_XDECREF(self->text_factory);
+ Py_XDECREF(self->collations);
+ Py_XDECREF(self->statements);
+ Py_XDECREF(self->cursors);
+
+ self->ob_type->tp_free((PyObject*)self);
+}
+
+/*
+ * Registers a cursor with the connection.
+ *
+ * 0 => error; 1 => ok
+ */
+int pysqlite_connection_register_cursor(pysqlite_Connection* connection, PyObject* cursor)
+{
+ PyObject* weakref;
+
+ weakref = PyWeakref_NewRef((PyObject*)cursor, NULL);
+ if (!weakref) {
+ goto error;
+ }
+
+ if (PyList_Append(connection->cursors, weakref) != 0) {
+ Py_CLEAR(weakref);
+ goto error;
+ }
+
+ Py_DECREF(weakref);
+
+ return 1;
+error:
+ return 0;
+}
+
+PyObject* pysqlite_connection_cursor(pysqlite_Connection* self, PyObject* args, PyObject* kwargs)
+{
+ static char *kwlist[] = {"factory", NULL, NULL};
+ PyObject* factory = NULL;
+ PyObject* cursor;
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|O", kwlist,
+ &factory)) {
+ return NULL;
+ }
+
+ if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) {
+ return NULL;
+ }
+
+ if (factory == NULL) {
+ factory = (PyObject*)&pysqlite_CursorType;
+ }
+
+ cursor = PyObject_CallFunction(factory, "O", self);
+
+ _pysqlite_drop_unused_cursor_references(self);
+
+ if (cursor && self->row_factory != Py_None) {
+ Py_XDECREF(((pysqlite_Cursor*)cursor)->row_factory);
+ Py_INCREF(self->row_factory);
+ ((pysqlite_Cursor*)cursor)->row_factory = self->row_factory;
+ }
+
+ return cursor;
+}
+
+#ifdef PYSQLITE_EXPERIMENTAL
+PyObject* pysqlite_connection_backup(pysqlite_Connection* self, PyObject* args, PyObject* kwargs)
+{
+ static char *kwlist[] = {"dest_db", "source_name", "dest_db_name", NULL, NULL};
+ char* source_name;
+ char* dest_name;
+ pysqlite_Connection* dest_con;
+ pysqlite_Backup* backup;
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O!ss", kwlist,
+ &pysqlite_ConnectionType, &dest_con, &source_name, &dest_name)) {
+ return NULL;
+ }
+
+ if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) {
+ return NULL;
+ }
+
+ backup = PyObject_New(pysqlite_Backup, &pysqlite_BackupType);
+ if (!backup) {
+ return NULL;
+ }
+
+ Py_INCREF(self);
+ backup->source_con = self;
+
+ Py_INCREF(dest_con);
+ backup->dest_con = dest_con;
+
+ backup->backup = sqlite3_backup_init(dest_con->db, dest_name, self->db, source_name);
+
+ return (PyObject*)backup;
+}
+#endif
+
+PyObject* pysqlite_connection_close(pysqlite_Connection* self, PyObject* args)
+{
+ PyObject* ret;
+ int rc;
+
+ if (!pysqlite_check_thread(self)) {
+ return NULL;
+ }
+
+ pysqlite_do_all_statements(self, ACTION_FINALIZE, 1);
+
+ if (self->db) {
+ if (self->apsw_connection) {
+ ret = PyObject_CallMethod(self->apsw_connection, "close", "");
+ Py_XDECREF(ret);
+ Py_XDECREF(self->apsw_connection);
+ self->apsw_connection = NULL;
+ self->db = NULL;
+ } else {
+ Py_BEGIN_ALLOW_THREADS
+ rc = sqlite3_close(self->db);
+ Py_END_ALLOW_THREADS
+
+ if (rc != SQLITE_OK) {
+ _pysqlite_seterror(self->db, NULL);
+ return NULL;
+ } else {
+ self->db = NULL;
+ }
+ }
+ }
+
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+/*
+ * Checks if a connection object is usable (i. e. not closed).
+ *
+ * 0 => error; 1 => ok
+ */
+int pysqlite_check_connection(pysqlite_Connection* con)
+{
+ if (!con->initialized) {
+ PyErr_SetString(pysqlite_ProgrammingError, "Base Connection.__init__ not called.");
+ return 0;
+ }
+
+ if (!con->db) {
+ PyErr_SetString(pysqlite_ProgrammingError, "Cannot operate on a closed database.");
+ return 0;
+ } else {
+ return 1;
+ }
+}
+
+PyObject* _pysqlite_connection_begin(pysqlite_Connection* self)
+{
+ int rc;
+ const char* tail;
+ sqlite3_stmt* statement;
+
+ Py_BEGIN_ALLOW_THREADS
+ rc = sqlite3_prepare(self->db, self->begin_statement, -1, &statement, &tail);
+ Py_END_ALLOW_THREADS
+
+ if (rc != SQLITE_OK) {
+ _pysqlite_seterror(self->db, statement);
+ goto error;
+ }
+
+ rc = pysqlite_step(statement, self);
+ if (rc == SQLITE_DONE) {
+ self->inTransaction = 1;
+ } else {
+ _pysqlite_seterror(self->db, statement);
+ }
+
+ Py_BEGIN_ALLOW_THREADS
+ rc = sqlite3_finalize(statement);
+ Py_END_ALLOW_THREADS
+
+ if (rc != SQLITE_OK && !PyErr_Occurred()) {
+ _pysqlite_seterror(self->db, NULL);
+ }
+
+error:
+ if (PyErr_Occurred()) {
+ return NULL;
+ } else {
+ Py_INCREF(Py_None);
+ return Py_None;
+ }
+}
+
+PyObject* pysqlite_connection_commit(pysqlite_Connection* self, PyObject* args)
+{
+ int rc;
+ const char* tail;
+ sqlite3_stmt* statement;
+
+ if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) {
+ return NULL;
+ }
+
+ if (self->inTransaction) {
+ pysqlite_do_all_statements(self, ACTION_RESET, 0);
+
+ Py_BEGIN_ALLOW_THREADS
+ rc = sqlite3_prepare(self->db, "COMMIT", -1, &statement, &tail);
+ Py_END_ALLOW_THREADS
+ if (rc != SQLITE_OK) {
+ _pysqlite_seterror(self->db, NULL);
+ goto error;
+ }
+
+ rc = pysqlite_step(statement, self);
+ if (rc == SQLITE_DONE) {
+ self->inTransaction = 0;
+ } else {
+ _pysqlite_seterror(self->db, statement);
+ }
+
+ Py_BEGIN_ALLOW_THREADS
+ rc = sqlite3_finalize(statement);
+ Py_END_ALLOW_THREADS
+ if (rc != SQLITE_OK && !PyErr_Occurred()) {
+ _pysqlite_seterror(self->db, NULL);
+ }
+
+ }
+
+error:
+ if (PyErr_Occurred()) {
+ return NULL;
+ } else {
+ Py_INCREF(Py_None);
+ return Py_None;
+ }
+}
+
+PyObject* pysqlite_connection_rollback(pysqlite_Connection* self, PyObject* args)
+{
+ int rc;
+ const char* tail;
+ sqlite3_stmt* statement;
+
+ if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) {
+ return NULL;
+ }
+
+ if (self->inTransaction) {
+ pysqlite_do_all_statements(self, ACTION_RESET, 1);
+
+ Py_BEGIN_ALLOW_THREADS
+ rc = sqlite3_prepare(self->db, "ROLLBACK", -1, &statement, &tail);
+ Py_END_ALLOW_THREADS
+ if (rc != SQLITE_OK) {
+ _pysqlite_seterror(self->db, NULL);
+ goto error;
+ }
+
+ rc = pysqlite_step(statement, self);
+ if (rc == SQLITE_DONE) {
+ self->inTransaction = 0;
+ } else {
+ _pysqlite_seterror(self->db, statement);
+ }
+
+ Py_BEGIN_ALLOW_THREADS
+ rc = sqlite3_finalize(statement);
+ Py_END_ALLOW_THREADS
+ if (rc != SQLITE_OK && !PyErr_Occurred()) {
+ _pysqlite_seterror(self->db, NULL);
+ }
+
+ }
+
+error:
+ if (PyErr_Occurred()) {
+ return NULL;
+ } else {
+ Py_INCREF(Py_None);
+ return Py_None;
+ }
+}
+
+void _pysqlite_set_result(sqlite3_context* context, PyObject* py_val)
+{
+ long longval;
+ const char* buffer;
+ Py_ssize_t buflen;
+ PyObject* stringval;
+
+ if ((!py_val) || PyErr_Occurred()) {
+ sqlite3_result_null(context);
+ } else if (py_val == Py_None) {
+ sqlite3_result_null(context);
+ } else if (PyInt_Check(py_val)) {
+ longval = PyInt_AsLong(py_val);
+ sqlite3_result_int64(context, (PY_LONG_LONG)longval);
+ } else if (PyFloat_Check(py_val)) {
+ sqlite3_result_double(context, PyFloat_AsDouble(py_val));
+ } else if (PyBuffer_Check(py_val)) {
+ if (PyObject_AsCharBuffer(py_val, &buffer, &buflen) != 0) {
+ PyErr_SetString(PyExc_ValueError, "could not convert BLOB to buffer");
+ } else {
+ sqlite3_result_blob(context, buffer, buflen, SQLITE_TRANSIENT);
+ }
+ } else if (PyString_Check(py_val)) {
+ sqlite3_result_text(context, PyString_AsString(py_val), -1, SQLITE_TRANSIENT);
+ } else if (PyUnicode_Check(py_val)) {
+ stringval = PyUnicode_AsUTF8String(py_val);
+ if (stringval) {
+ sqlite3_result_text(context, PyString_AsString(stringval), -1, SQLITE_TRANSIENT);
+ Py_DECREF(stringval);
+ }
+ } else {
+ /* TODO: raise error */
+ }
+}
+
+PyObject* _pysqlite_build_py_params(sqlite3_context *context, int argc, sqlite3_value** argv)
+{
+ PyObject* args;
+ int i;
+ sqlite3_value* cur_value;
+ PyObject* cur_py_value;
+ const char* val_str;
+ PY_LONG_LONG val_int;
+ Py_ssize_t buflen;
+ void* raw_buffer;
+
+ args = PyTuple_New(argc);
+ if (!args) {
+ return NULL;
+ }
+
+ for (i = 0; i < argc; i++) {
+ cur_value = argv[i];
+ switch (sqlite3_value_type(argv[i])) {
+ case SQLITE_INTEGER:
+ val_int = sqlite3_value_int64(cur_value);
+ cur_py_value = PyInt_FromLong((long)val_int);
+ break;
+ case SQLITE_FLOAT:
+ cur_py_value = PyFloat_FromDouble(sqlite3_value_double(cur_value));
+ break;
+ case SQLITE_TEXT:
+ val_str = (const char*)sqlite3_value_text(cur_value);
+ cur_py_value = PyUnicode_DecodeUTF8(val_str, strlen(val_str), NULL);
+ /* TODO: have a way to show errors here */
+ if (!cur_py_value) {
+ PyErr_Clear();
+ Py_INCREF(Py_None);
+ cur_py_value = Py_None;
+ }
+ break;
+ case SQLITE_BLOB:
+ buflen = sqlite3_value_bytes(cur_value);
+ cur_py_value = PyBuffer_New(buflen);
+ if (!cur_py_value) {
+ break;
+ }
+ if (PyObject_AsWriteBuffer(cur_py_value, &raw_buffer, &buflen)) {
+ Py_DECREF(cur_py_value);
+ cur_py_value = NULL;
+ break;
+ }
+ memcpy(raw_buffer, sqlite3_value_blob(cur_value), buflen);
+ break;
+ case SQLITE_NULL:
+ default:
+ Py_INCREF(Py_None);
+ cur_py_value = Py_None;
+ }
+
+ if (!cur_py_value) {
+ Py_DECREF(args);
+ return NULL;
+ }
+
+ PyTuple_SetItem(args, i, cur_py_value);
+
+ }
+
+ return args;
+}
+
+void _pysqlite_func_callback(sqlite3_context* context, int argc, sqlite3_value** argv)
+{
+ PyObject* args;
+ PyObject* py_func;
+ PyObject* py_retval = NULL;
+
+#ifdef WITH_THREAD
+ PyGILState_STATE threadstate;
+
+ threadstate = PyGILState_Ensure();
+#endif
+
+ py_func = (PyObject*)sqlite3_user_data(context);
+
+ args = _pysqlite_build_py_params(context, argc, argv);
+ if (args) {
+ py_retval = PyObject_CallObject(py_func, args);
+ Py_DECREF(args);
+ }
+
+ if (py_retval) {
+ _pysqlite_set_result(context, py_retval);
+ Py_DECREF(py_retval);
+ } else {
+ if (_enable_callback_tracebacks) {
+ PyErr_Print();
+ } else {
+ PyErr_Clear();
+ }
+ _sqlite3_result_error(context, "user-defined function raised exception", -1);
+ }
+
+#ifdef WITH_THREAD
+ PyGILState_Release(threadstate);
+#endif
+}
+
+static void _pysqlite_step_callback(sqlite3_context *context, int argc, sqlite3_value** params)
+{
+ PyObject* args;
+ PyObject* function_result = NULL;
+ PyObject* aggregate_class;
+ PyObject** aggregate_instance;
+ PyObject* stepmethod = NULL;
+
+#ifdef WITH_THREAD
+ PyGILState_STATE threadstate;
+
+ threadstate = PyGILState_Ensure();
+#endif
+
+ aggregate_class = (PyObject*)sqlite3_user_data(context);
+
+ aggregate_instance = (PyObject**)sqlite3_aggregate_context(context, sizeof(PyObject*));
+
+ if (*aggregate_instance == 0) {
+ *aggregate_instance = PyObject_CallFunction(aggregate_class, "");
+
+ if (PyErr_Occurred()) {
+ *aggregate_instance = 0;
+ if (_enable_callback_tracebacks) {
+ PyErr_Print();
+ } else {
+ PyErr_Clear();
+ }
+ _sqlite3_result_error(context, "user-defined aggregate's '__init__' method raised error", -1);
+ goto error;
+ }
+ }
+
+ stepmethod = PyObject_GetAttrString(*aggregate_instance, "step");
+ if (!stepmethod) {
+ goto error;
+ }
+
+ args = _pysqlite_build_py_params(context, argc, params);
+ if (!args) {
+ goto error;
+ }
+
+ function_result = PyObject_CallObject(stepmethod, args);
+ Py_DECREF(args);
+
+ if (!function_result) {
+ if (_enable_callback_tracebacks) {
+ PyErr_Print();
+ } else {
+ PyErr_Clear();
+ }
+ _sqlite3_result_error(context, "user-defined aggregate's 'step' method raised error", -1);
+ }
+
+error:
+ Py_XDECREF(stepmethod);
+ Py_XDECREF(function_result);
+
+#ifdef WITH_THREAD
+ PyGILState_Release(threadstate);
+#endif
+}
+
+void _pysqlite_final_callback(sqlite3_context* context)
+{
+ PyObject* function_result = NULL;
+ PyObject** aggregate_instance;
+ PyObject* aggregate_class;
+
+#ifdef WITH_THREAD
+ PyGILState_STATE threadstate;
+
+ threadstate = PyGILState_Ensure();
+#endif
+
+ aggregate_class = (PyObject*)sqlite3_user_data(context);
+
+ aggregate_instance = (PyObject**)sqlite3_aggregate_context(context, sizeof(PyObject*));
+ if (!*aggregate_instance) {
+ /* this branch is executed if there was an exception in the aggregate's
+ * __init__ */
+
+ goto error;
+ }
+
+ function_result = PyObject_CallMethod(*aggregate_instance, "finalize", "");
+ if (!function_result) {
+ if (_enable_callback_tracebacks) {
+ PyErr_Print();
+ } else {
+ PyErr_Clear();
+ }
+ _sqlite3_result_error(context, "user-defined aggregate's 'finalize' method raised error", -1);
+ } else {
+ _pysqlite_set_result(context, function_result);
+ }
+
+error:
+ Py_XDECREF(*aggregate_instance);
+ Py_XDECREF(function_result);
+
+#ifdef WITH_THREAD
+ PyGILState_Release(threadstate);
+#endif
+}
+
+static void _pysqlite_drop_unused_statement_references(pysqlite_Connection* self)
+{
+ PyObject* new_list;
+ PyObject* weakref;
+ int i;
+
+ /* we only need to do this once in a while */
+ if (self->created_statements++ < 200) {
+ return;
+ }
+
+ self->created_statements = 0;
+
+ new_list = PyList_New(0);
+ if (!new_list) {
+ return;
+ }
+
+ for (i = 0; i < PyList_Size(self->statements); i++) {
+ weakref = PyList_GetItem(self->statements, i);
+ if (PyWeakref_GetObject(weakref) != Py_None) {
+ if (PyList_Append(new_list, weakref) != 0) {
+ Py_DECREF(new_list);
+ return;
+ }
+ }
+ }
+
+ Py_DECREF(self->statements);
+ self->statements = new_list;
+}
+
+static void _pysqlite_drop_unused_cursor_references(pysqlite_Connection* self)
+{
+ PyObject* new_list;
+ PyObject* weakref;
+ int i;
+
+ /* we only need to do this once in a while */
+ if (self->created_cursors++ < 200) {
+ return;
+ }
+
+ self->created_cursors = 0;
+
+ new_list = PyList_New(0);
+ if (!new_list) {
+ return;
+ }
+
+ for (i = 0; i < PyList_Size(self->cursors); i++) {
+ weakref = PyList_GetItem(self->cursors, i);
+ if (PyWeakref_GetObject(weakref) != Py_None) {
+ if (PyList_Append(new_list, weakref) != 0) {
+ Py_DECREF(new_list);
+ return;
+ }
+ }
+ }
+
+ Py_DECREF(self->cursors);
+ self->cursors = new_list;
+}
+
+PyObject* pysqlite_connection_create_function(pysqlite_Connection* self, PyObject* args, PyObject* kwargs)
+{
+ static char *kwlist[] = {"name", "narg", "func", NULL, NULL};
+
+ PyObject* func;
+ char* name;
+ int narg;
+ int rc;
+
+ if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) {
+ return NULL;
+ }
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "siO", kwlist,
+ &name, &narg, &func))
+ {
+ return NULL;
+ }
+
+ rc = sqlite3_create_function(self->db, name, narg, SQLITE_UTF8, (void*)func, _pysqlite_func_callback, NULL, NULL);
+
+ if (rc != SQLITE_OK) {
+ /* Workaround for SQLite bug: no error code or string is available here */
+ PyErr_SetString(pysqlite_OperationalError, "Error creating function");
+ return NULL;
+ } else {
+ if (PyDict_SetItem(self->function_pinboard, func, Py_None) == -1)
+ return NULL;
+
+ Py_INCREF(Py_None);
+ return Py_None;
+ }
+}
+
+PyObject* pysqlite_connection_create_aggregate(pysqlite_Connection* self, PyObject* args, PyObject* kwargs)
+{
+ PyObject* aggregate_class;
+
+ int n_arg;
+ char* name;
+ static char *kwlist[] = { "name", "n_arg", "aggregate_class", NULL };
+ int rc;
+
+ if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) {
+ return NULL;
+ }
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "siO:create_aggregate",
+ kwlist, &name, &n_arg, &aggregate_class)) {
+ return NULL;
+ }
+
+ rc = sqlite3_create_function(self->db, name, n_arg, SQLITE_UTF8, (void*)aggregate_class, 0, &_pysqlite_step_callback, &_pysqlite_final_callback);
+ if (rc != SQLITE_OK) {
+ /* Workaround for SQLite bug: no error code or string is available here */
+ PyErr_SetString(pysqlite_OperationalError, "Error creating aggregate");
+ return NULL;
+ } else {
+ if (PyDict_SetItem(self->function_pinboard, aggregate_class, Py_None) == -1)
+ return NULL;
+
+ Py_INCREF(Py_None);
+ return Py_None;
+ }
+}
+
+static int _authorizer_callback(void* user_arg, int action, const char* arg1, const char* arg2 , const char* dbname, const char* access_attempt_source)
+{
+ PyObject *ret;
+ int rc;
+#ifdef WITH_THREAD
+ PyGILState_STATE gilstate;
+
+ gilstate = PyGILState_Ensure();
+#endif
+ ret = PyObject_CallFunction((PyObject*)user_arg, "issss", action, arg1, arg2, dbname, access_attempt_source);
+
+ if (!ret) {
+ if (_enable_callback_tracebacks) {
+ PyErr_Print();
+ } else {
+ PyErr_Clear();
+ }
+
+ rc = SQLITE_DENY;
+ } else {
+ if (PyInt_Check(ret)) {
+ rc = (int)PyInt_AsLong(ret);
+ } else {
+ rc = SQLITE_DENY;
+ }
+ Py_DECREF(ret);
+ }
+
+#ifdef WITH_THREAD
+ PyGILState_Release(gilstate);
+#endif
+ return rc;
+}
+
+static int _progress_handler(void* user_arg)
+{
+ int rc;
+ PyObject *ret;
+#ifdef WITH_THREAD
+ PyGILState_STATE gilstate;
+
+ gilstate = PyGILState_Ensure();
+#endif
+ ret = PyObject_CallFunction((PyObject*)user_arg, "");
+
+ if (!ret) {
+ if (_enable_callback_tracebacks) {
+ PyErr_Print();
+ } else {
+ PyErr_Clear();
+ }
+
+ /* abort query if error occurred */
+ rc = 1;
+ } else {
+ rc = (int)PyObject_IsTrue(ret);
+ Py_DECREF(ret);
+ }
+
+#ifdef WITH_THREAD
+ PyGILState_Release(gilstate);
+#endif
+ return rc;
+}
+
+static PyObject* pysqlite_connection_set_authorizer(pysqlite_Connection* self, PyObject* args, PyObject* kwargs)
+{
+ PyObject* authorizer_cb;
+
+ static char *kwlist[] = { "authorizer_callback", NULL };
+ int rc;
+
+ if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) {
+ return NULL;
+ }
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O:set_authorizer",
+ kwlist, &authorizer_cb)) {
+ return NULL;
+ }
+
+ rc = sqlite3_set_authorizer(self->db, _authorizer_callback, (void*)authorizer_cb);
+
+ if (rc != SQLITE_OK) {
+ PyErr_SetString(pysqlite_OperationalError, "Error setting authorizer callback");
+ return NULL;
+ } else {
+ if (PyDict_SetItem(self->function_pinboard, authorizer_cb, Py_None) == -1)
+ return NULL;
+
+ Py_INCREF(Py_None);
+ return Py_None;
+ }
+}
+
+static PyObject* pysqlite_connection_set_progress_handler(pysqlite_Connection* self, PyObject* args, PyObject* kwargs)
+{
+ PyObject* progress_handler;
+ int n;
+
+ static char *kwlist[] = { "progress_handler", "n", NULL };
+
+ if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) {
+ return NULL;
+ }
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "Oi:set_progress_handler",
+ kwlist, &progress_handler, &n)) {
+ return NULL;
+ }
+
+ if (progress_handler == Py_None) {
+ /* None clears the progress handler previously set */
+ sqlite3_progress_handler(self->db, 0, 0, (void*)0);
+ } else {
+ sqlite3_progress_handler(self->db, n, _progress_handler, progress_handler);
+ if (PyDict_SetItem(self->function_pinboard, progress_handler, Py_None) == -1)
+ return NULL;
+ }
+
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+#ifdef HAVE_LOAD_EXTENSION
+static PyObject* pysqlite_enable_load_extension(pysqlite_Connection* self, PyObject* args)
+{
+ int rc;
+ int onoff;
+
+ if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) {
+ return NULL;
+ }
+
+ if (!PyArg_ParseTuple(args, "i", &onoff)) {
+ return NULL;
+ }
+
+ rc = sqlite3_enable_load_extension(self->db, onoff);
+
+ if (rc != SQLITE_OK) {
+ PyErr_SetString(pysqlite_OperationalError, "Error enabling load extension");
+ return NULL;
+ } else {
+ Py_INCREF(Py_None);
+ return Py_None;
+ }
+}
+
+static PyObject* pysqlite_load_extension(pysqlite_Connection* self, PyObject* args)
+{
+ int rc;
+ char* extension_name;
+ char* errmsg;
+
+ if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) {
+ return NULL;
+ }
+
+ if (!PyArg_ParseTuple(args, "s", &extension_name)) {
+ return NULL;
+ }
+
+ rc = sqlite3_load_extension(self->db, extension_name, 0, &errmsg);
+ if (rc != 0) {
+ PyErr_SetString(pysqlite_OperationalError, errmsg);
+ return NULL;
+ } else {
+ Py_INCREF(Py_None);
+ return Py_None;
+ }
+}
+#endif
+
+int pysqlite_check_thread(pysqlite_Connection* self)
+{
+#ifdef WITH_THREAD
+ if (self->check_same_thread) {
+ if (PyThread_get_thread_ident() != self->thread_ident) {
+ PyErr_Format(pysqlite_ProgrammingError,
+ "SQLite objects created in a thread can only be used in that same thread."
+ "The object was created in thread id %ld and this is thread id %ld",
+ self->thread_ident, PyThread_get_thread_ident());
+ return 0;
+ }
+
+ }
+#endif
+ return 1;
+}
+
+static PyObject* pysqlite_connection_get_isolation_level(pysqlite_Connection* self, void* unused)
+{
+ Py_INCREF(self->isolation_level);
+ return self->isolation_level;
+}
+
+static PyObject* pysqlite_connection_get_total_changes(pysqlite_Connection* self, void* unused)
+{
+ if (!pysqlite_check_connection(self)) {
+ return NULL;
+ } else {
+ return Py_BuildValue("i", sqlite3_total_changes(self->db));
+ }
+}
+
+static int pysqlite_connection_set_isolation_level(pysqlite_Connection* self, PyObject* isolation_level)
+{
+ PyObject* res;
+ PyObject* begin_statement;
+ char* begin_statement_str;
+
+ Py_XDECREF(self->isolation_level);
+
+ if (self->begin_statement) {
+ PyMem_Free(self->begin_statement);
+ self->begin_statement = NULL;
+ }
+
+ if (isolation_level == Py_None) {
+ Py_INCREF(Py_None);
+ self->isolation_level = Py_None;
+
+ res = pysqlite_connection_commit(self, NULL);
+ if (!res) {
+ return -1;
+ }
+ Py_DECREF(res);
+
+ self->inTransaction = 0;
+ } else {
+ Py_INCREF(isolation_level);
+ self->isolation_level = isolation_level;
+
+ begin_statement = PyString_FromString("BEGIN ");
+ if (!begin_statement) {
+ return -1;
+ }
+ PyString_Concat(&begin_statement, isolation_level);
+ if (!begin_statement) {
+ return -1;
+ }
+
+ begin_statement_str = PyString_AsString(begin_statement);
+ if (!begin_statement_str) {
+ Py_DECREF(begin_statement);
+ return -1;
+ }
+ self->begin_statement = PyMem_Malloc(strlen(begin_statement_str) + 2);
+ if (!self->begin_statement) {
+ Py_DECREF(begin_statement);
+ return -1;
+ }
+
+ strcpy(self->begin_statement, begin_statement_str);
+ Py_DECREF(begin_statement);
+ }
+
+ return 0;
+}
+
+PyObject* pysqlite_connection_call(pysqlite_Connection* self, PyObject* args, PyObject* kwargs)
+{
+ PyObject* sql;
+ pysqlite_Statement* statement;
+ PyObject* weakref;
+ int rc;
+
+ if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) {
+ return NULL;
+ }
+
+ if (!PyArg_ParseTuple(args, "O", &sql)) {
+ return NULL;
+ }
+
+ _pysqlite_drop_unused_statement_references(self);
+
+ statement = PyObject_New(pysqlite_Statement, &pysqlite_StatementType);
+ if (!statement) {
+ return NULL;
+ }
+
+ rc = pysqlite_statement_create(statement, self, sql);
+
+ if (rc != SQLITE_OK) {
+ if (rc == PYSQLITE_TOO_MUCH_SQL) {
+ PyErr_SetString(pysqlite_ProgrammingError, "You can only execute one statement at a time.");
+ } else if (rc == PYSQLITE_SQL_WRONG_TYPE) {
+ PyErr_SetString(pysqlite_ProgrammingError, "SQL is of wrong type. Must be string or unicode.");
+ } else {
+ (void)pysqlite_statement_reset(statement);
+ _pysqlite_seterror(self->db, NULL);
+ }
+
+ Py_CLEAR(statement);
+ } else {
+ weakref = PyWeakref_NewRef((PyObject*)statement, NULL);
+ if (!weakref) {
+ Py_CLEAR(statement);
+ goto error;
+ }
+
+ if (PyList_Append(self->statements, weakref) != 0) {
+ Py_CLEAR(weakref);
+ goto error;
+ }
+
+ Py_DECREF(weakref);
+ }
+
+error:
+ return (PyObject*)statement;
+}
+
+PyObject* pysqlite_connection_execute(pysqlite_Connection* self, PyObject* args, PyObject* kwargs)
+{
+ PyObject* cursor = 0;
+ PyObject* result = 0;
+ PyObject* method = 0;
+
+ cursor = PyObject_CallMethod((PyObject*)self, "cursor", "");
+ if (!cursor) {
+ goto error;
+ }
+
+ method = PyObject_GetAttrString(cursor, "execute");
+ if (!method) {
+ Py_CLEAR(cursor);
+ goto error;
+ }
+
+ result = PyObject_CallObject(method, args);
+ if (!result) {
+ Py_CLEAR(cursor);
+ }
+
+error:
+ Py_XDECREF(result);
+ Py_XDECREF(method);
+
+ return cursor;
+}
+
+PyObject* pysqlite_connection_executemany(pysqlite_Connection* self, PyObject* args, PyObject* kwargs)
+{
+ PyObject* cursor = 0;
+ PyObject* result = 0;
+ PyObject* method = 0;
+
+ cursor = PyObject_CallMethod((PyObject*)self, "cursor", "");
+ if (!cursor) {
+ goto error;
+ }
+
+ method = PyObject_GetAttrString(cursor, "executemany");
+ if (!method) {
+ Py_CLEAR(cursor);
+ goto error;
+ }
+
+ result = PyObject_CallObject(method, args);
+ if (!result) {
+ Py_CLEAR(cursor);
+ }
+
+error:
+ Py_XDECREF(result);
+ Py_XDECREF(method);
+
+ return cursor;
+}
+
+PyObject* pysqlite_connection_executescript(pysqlite_Connection* self, PyObject* args, PyObject* kwargs)
+{
+ PyObject* cursor = 0;
+ PyObject* result = 0;
+ PyObject* method = 0;
+
+ cursor = PyObject_CallMethod((PyObject*)self, "cursor", "");
+ if (!cursor) {
+ goto error;
+ }
+
+ method = PyObject_GetAttrString(cursor, "executescript");
+ if (!method) {
+ Py_CLEAR(cursor);
+ goto error;
+ }
+
+ result = PyObject_CallObject(method, args);
+ if (!result) {
+ Py_CLEAR(cursor);
+ }
+
+error:
+ Py_XDECREF(result);
+ Py_XDECREF(method);
+
+ return cursor;
+}
+
+/* ------------------------- COLLATION CODE ------------------------ */
+
+static int
+pysqlite_collation_callback(
+ void* context,
+ int text1_length, const void* text1_data,
+ int text2_length, const void* text2_data)
+{
+ PyObject* callback = (PyObject*)context;
+ PyObject* string1 = 0;
+ PyObject* string2 = 0;
+#ifdef WITH_THREAD
+ PyGILState_STATE gilstate;
+#endif
+ PyObject* retval = NULL;
+ int result = 0;
+#ifdef WITH_THREAD
+ gilstate = PyGILState_Ensure();
+#endif
+
+ if (PyErr_Occurred()) {
+ goto finally;
+ }
+
+ string1 = PyString_FromStringAndSize((const char*)text1_data, text1_length);
+ string2 = PyString_FromStringAndSize((const char*)text2_data, text2_length);
+
+ if (!string1 || !string2) {
+ goto finally; /* failed to allocate strings */
+ }
+
+ retval = PyObject_CallFunctionObjArgs(callback, string1, string2, NULL);
+
+ if (!retval) {
+ /* execution failed */
+ goto finally;
+ }
+
+ result = PyInt_AsLong(retval);
+ if (PyErr_Occurred()) {
+ result = 0;
+ }
+
+finally:
+ Py_XDECREF(string1);
+ Py_XDECREF(string2);
+ Py_XDECREF(retval);
+#ifdef WITH_THREAD
+ PyGILState_Release(gilstate);
+#endif
+ return result;
+}
+
+static PyObject *
+pysqlite_connection_interrupt(pysqlite_Connection* self, PyObject* args)
+{
+ PyObject* retval = NULL;
+
+ if (!pysqlite_check_connection(self)) {
+ goto finally;
+ }
+
+ sqlite3_interrupt(self->db);
+
+ Py_INCREF(Py_None);
+ retval = Py_None;
+
+finally:
+ return retval;
+}
+
+/* Function author: Paul Kippes <kippesp@gmail.com>
+ * Class method of Connection to call the Python function _iterdump
+ * of the sqlite3 module.
+ */
+static PyObject *
+pysqlite_connection_iterdump(pysqlite_Connection* self, PyObject* args)
+{
+ PyObject* retval = NULL;
+ PyObject* module = NULL;
+ PyObject* module_dict;
+ PyObject* pyfn_iterdump;
+
+ if (!pysqlite_check_connection(self)) {
+ goto finally;
+ }
+
+ module = PyImport_ImportModule("pysqlite2.dump");
+ if (!module) {
+ goto finally;
+ }
+
+ module_dict = PyModule_GetDict(module);
+ if (!module_dict) {
+ goto finally;
+ }
+
+ pyfn_iterdump = PyDict_GetItemString(module_dict, "_iterdump");
+ if (!pyfn_iterdump) {
+ PyErr_SetString(pysqlite_OperationalError, "Failed to obtain _iterdump() reference");
+ goto finally;
+ }
+
+ args = PyTuple_New(1);
+ if (!args) {
+ goto finally;
+ }
+ Py_INCREF(self);
+ PyTuple_SetItem(args, 0, (PyObject*)self);
+ retval = PyObject_CallObject(pyfn_iterdump, args);
+
+finally:
+ Py_XDECREF(args);
+ Py_XDECREF(module);
+ return retval;
+}
+
+static PyObject *
+pysqlite_connection_create_collation(pysqlite_Connection* self, PyObject* args)
+{
+ PyObject* callable;
+ PyObject* uppercase_name = 0;
+ PyObject* name;
+ PyObject* retval;
+ char* chk;
+ int rc;
+
+ if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) {
+ goto finally;
+ }
+
+ if (!PyArg_ParseTuple(args, "O!O:create_collation(name, callback)", &PyString_Type, &name, &callable)) {
+ goto finally;
+ }
+
+ uppercase_name = PyObject_CallMethod(name, "upper", "");
+ if (!uppercase_name) {
+ goto finally;
+ }
+
+ chk = PyString_AsString(uppercase_name);
+ while (*chk) {
+ if ((*chk >= '0' && *chk <= '9')
+ || (*chk >= 'A' && *chk <= 'Z')
+ || (*chk == '_'))
+ {
+ chk++;
+ } else {
+ PyErr_SetString(pysqlite_ProgrammingError, "invalid character in collation name");
+ goto finally;
+ }
+ }
+
+ if (callable != Py_None && !PyCallable_Check(callable)) {
+ PyErr_SetString(PyExc_TypeError, "parameter must be callable");
+ goto finally;
+ }
+
+ if (callable != Py_None) {
+ if (PyDict_SetItem(self->collations, uppercase_name, callable) == -1)
+ goto finally;
+ } else {
+ if (PyDict_DelItem(self->collations, uppercase_name) == -1)
+ goto finally;
+ }
+
+ rc = sqlite3_create_collation(self->db,
+ PyString_AsString(uppercase_name),
+ SQLITE_UTF8,
+ (callable != Py_None) ? callable : NULL,
+ (callable != Py_None) ? pysqlite_collation_callback : NULL);
+ if (rc != SQLITE_OK) {
+ PyDict_DelItem(self->collations, uppercase_name);
+ _pysqlite_seterror(self->db, NULL);
+ goto finally;
+ }
+
+finally:
+ Py_XDECREF(uppercase_name);
+
+ if (PyErr_Occurred()) {
+ retval = NULL;
+ } else {
+ Py_INCREF(Py_None);
+ retval = Py_None;
+ }
+
+ return retval;
+}
+
+/* Called when the connection is used as a context manager. Returns itself as a
+ * convenience to the caller. */
+static PyObject *
+pysqlite_connection_enter(pysqlite_Connection* self, PyObject* args)
+{
+ Py_INCREF(self);
+ return (PyObject*)self;
+}
+
+/** Called when the connection is used as a context manager. If there was any
+ * exception, a rollback takes place; otherwise we commit. */
+static PyObject *
+pysqlite_connection_exit(pysqlite_Connection* self, PyObject* args)
+{
+ PyObject* exc_type, *exc_value, *exc_tb;
+ char* method_name;
+ PyObject* result;
+
+ if (!PyArg_ParseTuple(args, "OOO", &exc_type, &exc_value, &exc_tb)) {
+ return NULL;
+ }
+
+ if (exc_type == Py_None && exc_value == Py_None && exc_tb == Py_None) {
+ method_name = "commit";
+ } else {
+ method_name = "rollback";
+ }
+
+ result = PyObject_CallMethod((PyObject*)self, method_name, "");
+ if (!result) {
+ return NULL;
+ }
+ Py_DECREF(result);
+
+ Py_INCREF(Py_False);
+ return Py_False;
+}
+
+static char connection_doc[] =
+PyDoc_STR("SQLite database connection object.");
+
+static PyGetSetDef connection_getset[] = {
+ {"isolation_level", (getter)pysqlite_connection_get_isolation_level, (setter)pysqlite_connection_set_isolation_level},
+ {"total_changes", (getter)pysqlite_connection_get_total_changes, (setter)0},
+ {NULL}
+};
+
+static PyMethodDef connection_methods[] = {
+ #ifdef PYSQLITE_EXPERIMENTAL
+ {"backup", (PyCFunction)pysqlite_connection_backup, METH_VARARGS|METH_KEYWORDS,
+ PyDoc_STR("Backup database.")},
+ #endif
+ {"cursor", (PyCFunction)pysqlite_connection_cursor, METH_VARARGS|METH_KEYWORDS,
+ PyDoc_STR("Return a cursor for the connection.")},
+ {"close", (PyCFunction)pysqlite_connection_close, METH_NOARGS,
+ PyDoc_STR("Closes the connection.")},
+ {"commit", (PyCFunction)pysqlite_connection_commit, METH_NOARGS,
+ PyDoc_STR("Commit the current transaction.")},
+ {"rollback", (PyCFunction)pysqlite_connection_rollback, METH_NOARGS,
+ PyDoc_STR("Roll back the current transaction.")},
+ {"create_function", (PyCFunction)pysqlite_connection_create_function, METH_VARARGS|METH_KEYWORDS,
+ PyDoc_STR("Creates a new function. Non-standard.")},
+ {"create_aggregate", (PyCFunction)pysqlite_connection_create_aggregate, METH_VARARGS|METH_KEYWORDS,
+ PyDoc_STR("Creates a new aggregate. Non-standard.")},
+ {"set_authorizer", (PyCFunction)pysqlite_connection_set_authorizer, METH_VARARGS|METH_KEYWORDS,
+ PyDoc_STR("Sets authorizer callback. Non-standard.")},
+ #ifdef HAVE_LOAD_EXTENSION
+ {"enable_load_extension", (PyCFunction)pysqlite_enable_load_extension, METH_VARARGS,
+ PyDoc_STR("Enable dynamic loading of SQLite extension modules. Non-standard.")},
+ {"load_extension", (PyCFunction)pysqlite_load_extension, METH_VARARGS,
+ PyDoc_STR("Load SQLite extension module. Non-standard.")},
+ #endif
+ {"set_progress_handler", (PyCFunction)pysqlite_connection_set_progress_handler, METH_VARARGS|METH_KEYWORDS,
+ PyDoc_STR("Sets progress handler callback. Non-standard.")},
+ {"execute", (PyCFunction)pysqlite_connection_execute, METH_VARARGS,
+ PyDoc_STR("Executes a SQL statement. Non-standard.")},
+ {"executemany", (PyCFunction)pysqlite_connection_executemany, METH_VARARGS,
+ PyDoc_STR("Repeatedly executes a SQL statement. Non-standard.")},
+ {"executescript", (PyCFunction)pysqlite_connection_executescript, METH_VARARGS,
+ PyDoc_STR("Executes a multiple SQL statements at once. Non-standard.")},
+ {"create_collation", (PyCFunction)pysqlite_connection_create_collation, METH_VARARGS,
+ PyDoc_STR("Creates a collation function. Non-standard.")},
+ {"interrupt", (PyCFunction)pysqlite_connection_interrupt, METH_NOARGS,
+ PyDoc_STR("Abort any pending database operation. Non-standard.")},
+ {"iterdump", (PyCFunction)pysqlite_connection_iterdump, METH_NOARGS,
+ PyDoc_STR("Returns iterator to the dump of the database in an SQL text format. Non-standard.")},
+ {"__enter__", (PyCFunction)pysqlite_connection_enter, METH_NOARGS,
+ PyDoc_STR("For context manager. Non-standard.")},
+ {"__exit__", (PyCFunction)pysqlite_connection_exit, METH_VARARGS,
+ PyDoc_STR("For context manager. Non-standard.")},
+ {NULL, NULL}
+};
+
+static struct PyMemberDef connection_members[] =
+{
+ {"Warning", T_OBJECT, offsetof(pysqlite_Connection, Warning), RO},
+ {"Error", T_OBJECT, offsetof(pysqlite_Connection, Error), RO},
+ {"InterfaceError", T_OBJECT, offsetof(pysqlite_Connection, InterfaceError), RO},
+ {"DatabaseError", T_OBJECT, offsetof(pysqlite_Connection, DatabaseError), RO},
+ {"DataError", T_OBJECT, offsetof(pysqlite_Connection, DataError), RO},
+ {"OperationalError", T_OBJECT, offsetof(pysqlite_Connection, OperationalError), RO},
+ {"IntegrityError", T_OBJECT, offsetof(pysqlite_Connection, IntegrityError), RO},
+ {"InternalError", T_OBJECT, offsetof(pysqlite_Connection, InternalError), RO},
+ {"ProgrammingError", T_OBJECT, offsetof(pysqlite_Connection, ProgrammingError), RO},
+ {"NotSupportedError", T_OBJECT, offsetof(pysqlite_Connection, NotSupportedError), RO},
+ {"row_factory", T_OBJECT, offsetof(pysqlite_Connection, row_factory)},
+ {"text_factory", T_OBJECT, offsetof(pysqlite_Connection, text_factory)},
+ {NULL}
+};
+
+PyTypeObject pysqlite_ConnectionType = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ MODULE_NAME ".Connection", /* tp_name */
+ sizeof(pysqlite_Connection), /* tp_basicsize */
+ 0, /* tp_itemsize */
+ (destructor)pysqlite_connection_dealloc, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ 0, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ (ternaryfunc)pysqlite_connection_call, /* tp_call */
+ 0, /* tp_str */
+ 0, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, /* tp_flags */
+ connection_doc, /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ connection_methods, /* tp_methods */
+ connection_members, /* tp_members */
+ connection_getset, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+ 0, /* tp_dictoffset */
+ (initproc)pysqlite_connection_init, /* tp_init */
+ 0, /* tp_alloc */
+ 0, /* tp_new */
+ 0 /* tp_free */
+};
+
+extern int pysqlite_connection_setup_types(void)
+{
+ pysqlite_ConnectionType.tp_new = PyType_GenericNew;
+ return PyType_Ready(&pysqlite_ConnectionType);
+}
diff --git a/src/connection.h b/src/connection.h
new file mode 100644
index 0000000..3fc5a70
--- /dev/null
+++ b/src/connection.h
@@ -0,0 +1,138 @@
+/* connection.h - definitions for the connection type
+ *
+ * Copyright (C) 2004-2010 Gerhard Häring <gh@ghaering.de>
+ *
+ * This file is part of pysqlite.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#ifndef PYSQLITE_CONNECTION_H
+#define PYSQLITE_CONNECTION_H
+#include "Python.h"
+#include "pythread.h"
+#include "structmember.h"
+
+#include "cache.h"
+#include "module.h"
+
+#include "sqlite3.h"
+
+typedef struct
+{
+ PyObject_HEAD
+ sqlite3* db;
+
+ /* 1 if we are currently within a transaction, i. e. if a BEGIN has been
+ * issued */
+ int inTransaction;
+
+ /* the type detection mode. Only 0, PARSE_DECLTYPES, PARSE_COLNAMES or a
+ * bitwise combination thereof makes sense */
+ int detect_types;
+
+ /* the timeout value in seconds for database locks */
+ double timeout;
+
+ /* for internal use in the timeout handler: when did the timeout handler
+ * first get called with count=0? */
+ double timeout_started;
+
+ /* None for autocommit, otherwise a PyString with the isolation level */
+ PyObject* isolation_level;
+
+ /* NULL for autocommit, otherwise a string with the BEGIN statment; will be
+ * freed in connection destructor */
+ char* begin_statement;
+
+ /* 1 if a check should be performed for each API call if the connection is
+ * used from the same thread it was created in */
+ int check_same_thread;
+
+ int initialized;
+
+ /* thread identification of the thread the connection was created in */
+ long thread_ident;
+
+ pysqlite_Cache* statement_cache;
+
+ /* Lists of weak references to statements and cursors used within this connection */
+ PyObject* statements;
+ PyObject* cursors;
+
+ /* Counters for how many statements/cursors were created in the connection. May be
+ * reset to 0 at certain intervals */
+ int created_statements;
+ int created_cursors;
+
+ PyObject* row_factory;
+
+ /* Determines how bytestrings from SQLite are converted to Python objects:
+ * - PyUnicode_Type: Python Unicode objects are constructed from UTF-8 bytestrings
+ * - OptimizedUnicode: Like before, but for ASCII data, only PyStrings are created.
+ * - PyString_Type: PyStrings are created as-is.
+ * - Any custom callable: Any object returned from the callable called with the bytestring
+ * as single parameter.
+ */
+ PyObject* text_factory;
+
+ /* remember references to functions/classes used in
+ * create_function/create/aggregate, use these as dictionary keys, so we
+ * can keep the total system refcount constant by clearing that dictionary
+ * in connection_dealloc */
+ PyObject* function_pinboard;
+
+ /* a dictionary of registered collation name => collation callable mappings */
+ PyObject* collations;
+
+ /* if our connection was created from a APSW connection, we keep a
+ * reference to the APSW connection around and get rid of it in our
+ * destructor */
+ PyObject* apsw_connection;
+
+ /* Exception objects */
+ PyObject* Warning;
+ PyObject* Error;
+ PyObject* InterfaceError;
+ PyObject* DatabaseError;
+ PyObject* DataError;
+ PyObject* OperationalError;
+ PyObject* IntegrityError;
+ PyObject* InternalError;
+ PyObject* ProgrammingError;
+ PyObject* NotSupportedError;
+} pysqlite_Connection;
+
+extern PyTypeObject pysqlite_ConnectionType;
+
+PyObject* pysqlite_connection_alloc(PyTypeObject* type, int aware);
+void pysqlite_connection_dealloc(pysqlite_Connection* self);
+PyObject* pysqlite_connection_cursor(pysqlite_Connection* self, PyObject* args, PyObject* kwargs);
+PyObject* pysqlite_connection_close(pysqlite_Connection* self, PyObject* args);
+PyObject* _pysqlite_connection_begin(pysqlite_Connection* self);
+PyObject* pysqlite_connection_commit(pysqlite_Connection* self, PyObject* args);
+PyObject* pysqlite_connection_rollback(pysqlite_Connection* self, PyObject* args);
+PyObject* pysqlite_connection_new(PyTypeObject* type, PyObject* args, PyObject* kw);
+int pysqlite_connection_init(pysqlite_Connection* self, PyObject* args, PyObject* kwargs);
+
+int pysqlite_connection_register_cursor(pysqlite_Connection* connection, PyObject* cursor);
+int pysqlite_check_thread(pysqlite_Connection* self);
+int pysqlite_check_connection(pysqlite_Connection* con);
+
+int pysqlite_connection_setup_types(void);
+
+#endif
diff --git a/src/cursor.c b/src/cursor.c
new file mode 100644
index 0000000..26e3307
--- /dev/null
+++ b/src/cursor.c
@@ -0,0 +1,1126 @@
+/* cursor.c - the cursor type
+ *
+ * Copyright (C) 2004-2010 Gerhard Häring <gh@ghaering.de>
+ *
+ * This file is part of pysqlite.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#include "cursor.h"
+#include "module.h"
+#include "util.h"
+#include "sqlitecompat.h"
+
+/* used to decide wether to call PyInt_FromLong or PyLong_FromLongLong */
+#ifndef INT32_MIN
+#define INT32_MIN (-2147483647 - 1)
+#endif
+#ifndef INT32_MAX
+#define INT32_MAX 2147483647
+#endif
+
+PyObject* pysqlite_cursor_iternext(pysqlite_Cursor* self);
+
+static char* errmsg_fetch_across_rollback = "Cursor needed to be reset because of commit/rollback and can no longer be fetched from.";
+
+static pysqlite_StatementKind detect_statement_type(char* statement)
+{
+ char buf[20];
+ char* src;
+ char* dst;
+
+ src = statement;
+ /* skip over whitepace */
+ while (*src == '\r' || *src == '\n' || *src == ' ' || *src == '\t') {
+ src++;
+ }
+
+ if (*src == 0)
+ return STATEMENT_INVALID;
+
+ dst = buf;
+ *dst = 0;
+ while (isalpha(*src) && dst - buf < sizeof(buf) - 2) {
+ *dst++ = tolower(*src++);
+ }
+
+ *dst = 0;
+
+ if (!strcmp(buf, "select")) {
+ return STATEMENT_SELECT;
+ } else if (!strcmp(buf, "insert")) {
+ return STATEMENT_INSERT;
+ } else if (!strcmp(buf, "update")) {
+ return STATEMENT_UPDATE;
+ } else if (!strcmp(buf, "delete")) {
+ return STATEMENT_DELETE;
+ } else if (!strcmp(buf, "replace")) {
+ return STATEMENT_REPLACE;
+ } else {
+ return STATEMENT_OTHER;
+ }
+}
+
+static int pysqlite_cursor_init(pysqlite_Cursor* self, PyObject* args, PyObject* kwargs)
+{
+ pysqlite_Connection* connection;
+
+ if (!PyArg_ParseTuple(args, "O!", &pysqlite_ConnectionType, &connection))
+ {
+ return -1;
+ }
+
+ Py_INCREF(connection);
+ self->connection = connection;
+ self->statement = NULL;
+ self->next_row = NULL;
+ self->in_weakreflist = NULL;
+
+ self->row_cast_map = PyList_New(0);
+ if (!self->row_cast_map) {
+ return -1;
+ }
+
+ Py_INCREF(Py_None);
+ self->description = Py_None;
+
+ Py_INCREF(Py_None);
+ self->lastrowid= Py_None;
+
+ self->arraysize = 1;
+ self->closed = 0;
+ self->reset = 0;
+
+ self->rowcount = -1L;
+
+ Py_INCREF(Py_None);
+ self->row_factory = Py_None;
+
+ if (!pysqlite_check_thread(self->connection)) {
+ return -1;
+ }
+
+ if (!pysqlite_connection_register_cursor(connection, (PyObject*)self)) {
+ return -1;
+ }
+
+ self->initialized = 1;
+
+ return 0;
+}
+
+static void pysqlite_cursor_dealloc(pysqlite_Cursor* self)
+{
+ int rc;
+
+ /* Reset the statement if the user has not closed the cursor */
+ if (self->statement) {
+ rc = pysqlite_statement_reset(self->statement);
+ Py_DECREF(self->statement);
+ }
+
+ Py_XDECREF(self->connection);
+ Py_XDECREF(self->row_cast_map);
+ Py_XDECREF(self->description);
+ Py_XDECREF(self->lastrowid);
+ Py_XDECREF(self->row_factory);
+ Py_XDECREF(self->next_row);
+
+ if (self->in_weakreflist != NULL) {
+ PyObject_ClearWeakRefs((PyObject*)self);
+ }
+
+ self->ob_type->tp_free((PyObject*)self);
+}
+
+PyObject* _pysqlite_get_converter(PyObject* key)
+{
+ PyObject* upcase_key;
+ PyObject* retval;
+
+ upcase_key = PyObject_CallMethod(key, "upper", "");
+ if (!upcase_key) {
+ return NULL;
+ }
+
+ retval = PyDict_GetItem(converters, upcase_key);
+ Py_DECREF(upcase_key);
+
+ return retval;
+}
+
+int pysqlite_build_row_cast_map(pysqlite_Cursor* self)
+{
+ int i;
+ const char* type_start = (const char*)-1;
+ const char* pos;
+
+ const char* colname;
+ const char* decltype;
+ PyObject* py_decltype;
+ PyObject* converter;
+ PyObject* key;
+
+ if (!self->connection->detect_types) {
+ return 0;
+ }
+
+ Py_XDECREF(self->row_cast_map);
+ self->row_cast_map = PyList_New(0);
+
+ for (i = 0; i < sqlite3_column_count(self->statement->st); i++) {
+ converter = NULL;
+
+ if (self->connection->detect_types & PARSE_COLNAMES) {
+ colname = sqlite3_column_name(self->statement->st, i);
+ if (colname) {
+ for (pos = colname; *pos != 0; pos++) {
+ if (*pos == '[') {
+ type_start = pos + 1;
+ } else if (*pos == ']' && type_start != (const char*)-1) {
+ key = PyString_FromStringAndSize(type_start, pos - type_start);
+ if (!key) {
+ /* creating a string failed, but it is too complicated
+ * to propagate the error here, we just assume there is
+ * no converter and proceed */
+ break;
+ }
+
+ converter = _pysqlite_get_converter(key);
+ Py_DECREF(key);
+ break;
+ }
+ }
+ }
+ }
+
+ if (!converter && self->connection->detect_types & PARSE_DECLTYPES) {
+ decltype = sqlite3_column_decltype(self->statement->st, i);
+ if (decltype) {
+ for (pos = decltype;;pos++) {
+ /* Converter names are split at '(' and blanks.
+ * This allows 'INTEGER NOT NULL' to be treated as 'INTEGER' and
+ * 'NUMBER(10)' to be treated as 'NUMBER', for example.
+ * In other words, it will work as people expect it to work.*/
+ if (*pos == ' ' || *pos == '(' || *pos == 0) {
+ py_decltype = PyString_FromStringAndSize(decltype, pos - decltype);
+ if (!py_decltype) {
+ return -1;
+ }
+ break;
+ }
+ }
+
+ converter = _pysqlite_get_converter(py_decltype);
+ Py_DECREF(py_decltype);
+ }
+ }
+
+ if (!converter) {
+ converter = Py_None;
+ }
+
+ if (PyList_Append(self->row_cast_map, converter) != 0) {
+ if (converter != Py_None) {
+ Py_DECREF(converter);
+ }
+ Py_XDECREF(self->row_cast_map);
+ self->row_cast_map = NULL;
+
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+PyObject* _pysqlite_build_column_name(const char* colname)
+{
+ const char* pos;
+
+ if (!colname) {
+ Py_INCREF(Py_None);
+ return Py_None;
+ }
+
+ for (pos = colname;; pos++) {
+ if (*pos == 0 || *pos == '[') {
+ if ((*pos == '[') && (pos > colname) && (*(pos-1) == ' ')) {
+ pos--;
+ }
+ return PyString_FromStringAndSize(colname, pos - colname);
+ }
+ }
+}
+
+PyObject* pysqlite_unicode_from_string(const char* val_str, int optimize)
+{
+ const char* check;
+ int is_ascii = 0;
+
+ if (optimize) {
+ is_ascii = 1;
+
+ check = val_str;
+ while (*check) {
+ if (*check & 0x80) {
+ is_ascii = 0;
+ break;
+ }
+
+ check++;
+ }
+ }
+
+ if (is_ascii) {
+ return PyString_FromString(val_str);
+ } else {
+ return PyUnicode_DecodeUTF8(val_str, strlen(val_str), NULL);
+ }
+}
+
+/*
+ * Returns a row from the currently active SQLite statement
+ *
+ * Precondidition:
+ * - sqlite3_step() has been called before and it returned SQLITE_ROW.
+ */
+PyObject* _pysqlite_fetch_one_row(pysqlite_Cursor* self)
+{
+ int i, numcols;
+ PyObject* row;
+ PyObject* item = NULL;
+ int coltype;
+ PY_LONG_LONG intval;
+ PyObject* converter;
+ PyObject* converted;
+ Py_ssize_t nbytes;
+ PyObject* buffer;
+ void* raw_buffer;
+ const char* val_str;
+ char buf[200];
+ const char* colname;
+
+ if (self->reset) {
+ PyErr_SetString(pysqlite_InterfaceError, errmsg_fetch_across_rollback);
+ return NULL;
+ }
+
+ Py_BEGIN_ALLOW_THREADS
+ numcols = sqlite3_data_count(self->statement->st);
+ Py_END_ALLOW_THREADS
+
+ row = PyTuple_New(numcols);
+ if (!row) {
+ return NULL;
+ }
+
+ for (i = 0; i < numcols; i++) {
+ if (self->connection->detect_types) {
+ converter = PyList_GetItem(self->row_cast_map, i);
+ if (!converter) {
+ converter = Py_None;
+ }
+ } else {
+ converter = Py_None;
+ }
+
+ if (converter != Py_None) {
+ nbytes = sqlite3_column_bytes(self->statement->st, i);
+ val_str = (const char*)sqlite3_column_blob(self->statement->st, i);
+ if (!val_str) {
+ Py_INCREF(Py_None);
+ converted = Py_None;
+ } else {
+ item = PyString_FromStringAndSize(val_str, nbytes);
+ if (!item) {
+ return NULL;
+ }
+ converted = PyObject_CallFunction(converter, "O", item);
+ Py_DECREF(item);
+ if (!converted) {
+ break;
+ }
+ }
+ } else {
+ Py_BEGIN_ALLOW_THREADS
+ coltype = sqlite3_column_type(self->statement->st, i);
+ Py_END_ALLOW_THREADS
+ if (coltype == SQLITE_NULL) {
+ Py_INCREF(Py_None);
+ converted = Py_None;
+ } else if (coltype == SQLITE_INTEGER) {
+ intval = sqlite3_column_int64(self->statement->st, i);
+ if (intval < INT32_MIN || intval > INT32_MAX) {
+ converted = PyLong_FromLongLong(intval);
+ } else {
+ converted = PyInt_FromLong((long)intval);
+ }
+ } else if (coltype == SQLITE_FLOAT) {
+ converted = PyFloat_FromDouble(sqlite3_column_double(self->statement->st, i));
+ } else if (coltype == SQLITE_TEXT) {
+ val_str = (const char*)sqlite3_column_text(self->statement->st, i);
+ if ((self->connection->text_factory == (PyObject*)&PyUnicode_Type)
+ || (self->connection->text_factory == pysqlite_OptimizedUnicode)) {
+
+ converted = pysqlite_unicode_from_string(val_str,
+ self->connection->text_factory == pysqlite_OptimizedUnicode ? 1 : 0);
+
+ if (!converted) {
+ colname = sqlite3_column_name(self->statement->st, i);
+ if (!colname) {
+ colname = "<unknown column name>";
+ }
+ PyOS_snprintf(buf, sizeof(buf) - 1, "Could not decode to UTF-8 column '%s' with text '%s'",
+ colname , val_str);
+ PyErr_SetString(pysqlite_OperationalError, buf);
+ }
+ } else if (self->connection->text_factory == (PyObject*)&PyString_Type) {
+ converted = PyString_FromString(val_str);
+ } else {
+ converted = PyObject_CallFunction(self->connection->text_factory, "s", val_str);
+ }
+ } else {
+ /* coltype == SQLITE_BLOB */
+ nbytes = sqlite3_column_bytes(self->statement->st, i);
+ buffer = PyBuffer_New(nbytes);
+ if (!buffer) {
+ break;
+ }
+ if (PyObject_AsWriteBuffer(buffer, &raw_buffer, &nbytes)) {
+ break;
+ }
+ memcpy(raw_buffer, sqlite3_column_blob(self->statement->st, i), nbytes);
+ converted = buffer;
+ }
+ }
+
+ if (converted) {
+ PyTuple_SetItem(row, i, converted);
+ } else {
+ Py_INCREF(Py_None);
+ PyTuple_SetItem(row, i, Py_None);
+ }
+ }
+
+ if (PyErr_Occurred()) {
+ Py_DECREF(row);
+ row = NULL;
+ }
+
+ return row;
+}
+
+/*
+ * Checks if a cursor object is usable.
+ *
+ * 0 => error; 1 => ok
+ */
+static int check_cursor(pysqlite_Cursor* cur)
+{
+ if (!cur->initialized) {
+ PyErr_SetString(pysqlite_ProgrammingError, "Base Cursor.__init__ not called.");
+ return 0;
+ }
+
+ if (cur->closed) {
+ PyErr_SetString(pysqlite_ProgrammingError, "Cannot operate on a closed cursor.");
+ return 0;
+ } else {
+ return pysqlite_check_thread(cur->connection) && pysqlite_check_connection(cur->connection);
+ }
+}
+
+PyObject* _pysqlite_query_execute(pysqlite_Cursor* self, int multiple, PyObject* args)
+{
+ PyObject* operation;
+ PyObject* operation_bytestr = NULL;
+ char* operation_cstr;
+ PyObject* parameters_list = NULL;
+ PyObject* parameters_iter = NULL;
+ PyObject* parameters = NULL;
+ int i;
+ int rc;
+ PyObject* func_args;
+ PyObject* result;
+ int numcols;
+ PY_LONG_LONG lastrowid;
+ int statement_type;
+ PyObject* descriptor;
+ PyObject* second_argument = NULL;
+ int allow_8bit_chars;
+
+ if (!check_cursor(self)) {
+ return NULL;
+ }
+
+ self->reset = 0;
+
+ /* Make shooting yourself in the foot with not utf-8 decodable 8-bit-strings harder */
+ allow_8bit_chars = ((self->connection->text_factory != (PyObject*)&PyUnicode_Type) &&
+ (self->connection->text_factory != pysqlite_OptimizedUnicode));
+
+ Py_XDECREF(self->next_row);
+ self->next_row = NULL;
+
+ if (multiple) {
+ /* executemany() */
+ if (!PyArg_ParseTuple(args, "OO", &operation, &second_argument)) {
+ return NULL;
+ }
+
+ if (!PyString_Check(operation) && !PyUnicode_Check(operation)) {
+ PyErr_SetString(PyExc_ValueError, "operation parameter must be str or unicode");
+ return NULL;
+ }
+
+ if (PyIter_Check(second_argument)) {
+ /* iterator */
+ Py_INCREF(second_argument);
+ parameters_iter = second_argument;
+ } else {
+ /* sequence */
+ parameters_iter = PyObject_GetIter(second_argument);
+ if (!parameters_iter) {
+ return NULL;
+ }
+ }
+ } else {
+ /* execute() */
+ if (!PyArg_ParseTuple(args, "O|O", &operation, &second_argument)) {
+ return NULL;
+ }
+
+ if (!PyString_Check(operation) && !PyUnicode_Check(operation)) {
+ PyErr_SetString(PyExc_ValueError, "operation parameter must be str or unicode");
+ return NULL;
+ }
+
+ parameters_list = PyList_New(0);
+ if (!parameters_list) {
+ return NULL;
+ }
+
+ if (second_argument == NULL) {
+ second_argument = PyTuple_New(0);
+ if (!second_argument) {
+ goto error;
+ }
+ } else {
+ Py_INCREF(second_argument);
+ }
+ if (PyList_Append(parameters_list, second_argument) != 0) {
+ Py_DECREF(second_argument);
+ goto error;
+ }
+ Py_DECREF(second_argument);
+
+ parameters_iter = PyObject_GetIter(parameters_list);
+ if (!parameters_iter) {
+ goto error;
+ }
+ }
+
+ if (self->statement != NULL) {
+ /* There is an active statement */
+ rc = pysqlite_statement_reset(self->statement);
+ }
+
+ if (PyString_Check(operation)) {
+ operation_cstr = PyString_AsString(operation);
+ } else {
+ operation_bytestr = PyUnicode_AsUTF8String(operation);
+ if (!operation_bytestr) {
+ goto error;
+ }
+
+ operation_cstr = PyString_AsString(operation_bytestr);
+ }
+
+ /* reset description and rowcount */
+ Py_DECREF(self->description);
+ Py_INCREF(Py_None);
+ self->description = Py_None;
+ self->rowcount = -1L;
+
+ func_args = PyTuple_New(1);
+ if (!func_args) {
+ goto error;
+ }
+ Py_INCREF(operation);
+ if (PyTuple_SetItem(func_args, 0, operation) != 0) {
+ goto error;
+ }
+
+ if (self->statement) {
+ (void)pysqlite_statement_reset(self->statement);
+ Py_DECREF(self->statement);
+ }
+
+ self->statement = (pysqlite_Statement*)pysqlite_cache_get(self->connection->statement_cache, func_args);
+ Py_DECREF(func_args);
+
+ if (!self->statement) {
+ goto error;
+ }
+
+ if (self->statement->in_use) {
+ Py_DECREF(self->statement);
+ self->statement = PyObject_New(pysqlite_Statement, &pysqlite_StatementType);
+ if (!self->statement) {
+ goto error;
+ }
+ rc = pysqlite_statement_create(self->statement, self->connection, operation);
+ if (rc != SQLITE_OK) {
+ Py_CLEAR(self->statement);
+ goto error;
+ }
+ }
+
+ pysqlite_statement_reset(self->statement);
+ pysqlite_statement_mark_dirty(self->statement);
+
+ statement_type = detect_statement_type(operation_cstr);
+ if (self->connection->begin_statement) {
+ switch (statement_type) {
+ case STATEMENT_UPDATE:
+ case STATEMENT_DELETE:
+ case STATEMENT_INSERT:
+ case STATEMENT_REPLACE:
+ if (!self->connection->inTransaction) {
+ result = _pysqlite_connection_begin(self->connection);
+ if (!result) {
+ goto error;
+ }
+ Py_DECREF(result);
+ }
+ break;
+ case STATEMENT_OTHER:
+ /* it's a DDL statement or something similar
+ - we better COMMIT first so it works for all cases */
+ if (self->connection->inTransaction) {
+ result = pysqlite_connection_commit(self->connection, NULL);
+ if (!result) {
+ goto error;
+ }
+ Py_DECREF(result);
+ }
+ break;
+ case STATEMENT_SELECT:
+ if (multiple) {
+ PyErr_SetString(pysqlite_ProgrammingError,
+ "You cannot execute SELECT statements in executemany().");
+ goto error;
+ }
+ break;
+ }
+ }
+
+ while (1) {
+ parameters = PyIter_Next(parameters_iter);
+ if (!parameters) {
+ break;
+ }
+
+ pysqlite_statement_mark_dirty(self->statement);
+
+ pysqlite_statement_bind_parameters(self->statement, parameters, allow_8bit_chars);
+ if (PyErr_Occurred()) {
+ goto error;
+ }
+
+ /* Keep trying the SQL statement until the schema stops changing. */
+ while (1) {
+ /* Actually execute the SQL statement. */
+ rc = pysqlite_step(self->statement->st, self->connection);
+ if (rc == SQLITE_DONE || rc == SQLITE_ROW) {
+ /* If it worked, let's get out of the loop */
+ break;
+ }
+ /* Something went wrong. Re-set the statement and try again. */
+ rc = pysqlite_statement_reset(self->statement);
+ if (rc == SQLITE_SCHEMA) {
+ /* If this was a result of the schema changing, let's try
+ again. */
+ rc = pysqlite_statement_recompile(self->statement, parameters);
+ if (rc == SQLITE_OK) {
+ continue;
+ } else {
+ /* If the database gave us an error, promote it to Python. */
+ (void)pysqlite_statement_reset(self->statement);
+ _pysqlite_seterror(self->connection->db, NULL);
+ goto error;
+ }
+ } else {
+ if (PyErr_Occurred()) {
+ /* there was an error that occurred in a user-defined callback */
+ if (_enable_callback_tracebacks) {
+ PyErr_Print();
+ } else {
+ PyErr_Clear();
+ }
+ }
+ (void)pysqlite_statement_reset(self->statement);
+ _pysqlite_seterror(self->connection->db, NULL);
+ goto error;
+ }
+ }
+
+ if (pysqlite_build_row_cast_map(self) != 0) {
+ PyErr_SetString(pysqlite_OperationalError, "Error while building row_cast_map");
+ goto error;
+ }
+
+ if (rc == SQLITE_ROW || (rc == SQLITE_DONE && statement_type == STATEMENT_SELECT)) {
+ if (self->description == Py_None) {
+ Py_BEGIN_ALLOW_THREADS
+ numcols = sqlite3_column_count(self->statement->st);
+ Py_END_ALLOW_THREADS
+
+ Py_DECREF(self->description);
+ self->description = PyTuple_New(numcols);
+ if (!self->description) {
+ goto error;
+ }
+ for (i = 0; i < numcols; i++) {
+ descriptor = PyTuple_New(7);
+ if (!descriptor) {
+ goto error;
+ }
+ PyTuple_SetItem(descriptor, 0, _pysqlite_build_column_name(sqlite3_column_name(self->statement->st, i)));
+ Py_INCREF(Py_None); PyTuple_SetItem(descriptor, 1, Py_None);
+ Py_INCREF(Py_None); PyTuple_SetItem(descriptor, 2, Py_None);
+ Py_INCREF(Py_None); PyTuple_SetItem(descriptor, 3, Py_None);
+ Py_INCREF(Py_None); PyTuple_SetItem(descriptor, 4, Py_None);
+ Py_INCREF(Py_None); PyTuple_SetItem(descriptor, 5, Py_None);
+ Py_INCREF(Py_None); PyTuple_SetItem(descriptor, 6, Py_None);
+ PyTuple_SetItem(self->description, i, descriptor);
+ }
+ }
+ }
+
+ if (rc == SQLITE_ROW) {
+ if (multiple) {
+ PyErr_SetString(pysqlite_ProgrammingError, "executemany() can only execute DML statements.");
+ goto error;
+ }
+
+ self->next_row = _pysqlite_fetch_one_row(self);
+ } else if (rc == SQLITE_DONE && !multiple) {
+ pysqlite_statement_reset(self->statement);
+ Py_CLEAR(self->statement);
+ }
+
+ switch (statement_type) {
+ case STATEMENT_UPDATE:
+ case STATEMENT_DELETE:
+ case STATEMENT_INSERT:
+ case STATEMENT_REPLACE:
+ if (self->rowcount == -1L) {
+ self->rowcount = 0L;
+ }
+ self->rowcount += (long)sqlite3_changes(self->connection->db);
+ }
+
+ Py_DECREF(self->lastrowid);
+ if (!multiple && statement_type == STATEMENT_INSERT) {
+ Py_BEGIN_ALLOW_THREADS
+ lastrowid = sqlite3_last_insert_rowid(self->connection->db);
+ Py_END_ALLOW_THREADS
+ self->lastrowid = PyInt_FromLong((long)lastrowid);
+ } else {
+ Py_INCREF(Py_None);
+ self->lastrowid = Py_None;
+ }
+
+ if (multiple) {
+ rc = pysqlite_statement_reset(self->statement);
+ }
+ Py_XDECREF(parameters);
+ }
+
+error:
+ /* just to be sure (implicit ROLLBACKs with ON CONFLICT ROLLBACK/OR
+ * ROLLBACK could have happened */
+ #ifdef SQLITE_VERSION_NUMBER
+ #if SQLITE_VERSION_NUMBER >= 3002002
+ self->connection->inTransaction = !sqlite3_get_autocommit(self->connection->db);
+ #endif
+ #endif
+
+ Py_XDECREF(operation_bytestr);
+ Py_XDECREF(parameters);
+ Py_XDECREF(parameters_iter);
+ Py_XDECREF(parameters_list);
+
+ if (PyErr_Occurred()) {
+ self->rowcount = -1L;
+ return NULL;
+ } else {
+ Py_INCREF(self);
+ return (PyObject*)self;
+ }
+}
+
+PyObject* pysqlite_cursor_execute(pysqlite_Cursor* self, PyObject* args)
+{
+ return _pysqlite_query_execute(self, 0, args);
+}
+
+PyObject* pysqlite_cursor_executemany(pysqlite_Cursor* self, PyObject* args)
+{
+ return _pysqlite_query_execute(self, 1, args);
+}
+
+PyObject* pysqlite_cursor_executescript(pysqlite_Cursor* self, PyObject* args)
+{
+ PyObject* script_obj;
+ PyObject* script_str = NULL;
+ const char* script_cstr;
+ sqlite3_stmt* statement;
+ int rc;
+ PyObject* result;
+
+ if (!PyArg_ParseTuple(args, "O", &script_obj)) {
+ return NULL;
+ }
+
+ if (!check_cursor(self)) {
+ return NULL;
+ }
+
+ self->reset = 0;
+
+ if (PyString_Check(script_obj)) {
+ script_cstr = PyString_AsString(script_obj);
+ } else if (PyUnicode_Check(script_obj)) {
+ script_str = PyUnicode_AsUTF8String(script_obj);
+ if (!script_str) {
+ return NULL;
+ }
+
+ script_cstr = PyString_AsString(script_str);
+ } else {
+ PyErr_SetString(PyExc_ValueError, "script argument must be unicode or string.");
+ return NULL;
+ }
+
+ /* commit first */
+ result = pysqlite_connection_commit(self->connection, NULL);
+ if (!result) {
+ goto error;
+ }
+ Py_DECREF(result);
+
+ while (1) {
+ Py_BEGIN_ALLOW_THREADS
+ rc = sqlite3_prepare(self->connection->db,
+ script_cstr,
+ -1,
+ &statement,
+ &script_cstr);
+ Py_END_ALLOW_THREADS
+ if (rc != SQLITE_OK) {
+ _pysqlite_seterror(self->connection->db, NULL);
+ goto error;
+ }
+
+ /* execute statement, and ignore results of SELECT statements */
+ rc = SQLITE_ROW;
+ while (rc == SQLITE_ROW) {
+ rc = pysqlite_step(statement, self->connection);
+ /* TODO: we probably need more error handling here */
+ }
+
+ if (rc != SQLITE_DONE) {
+ (void)sqlite3_finalize(statement);
+ _pysqlite_seterror(self->connection->db, NULL);
+ goto error;
+ }
+
+ rc = sqlite3_finalize(statement);
+ if (rc != SQLITE_OK) {
+ _pysqlite_seterror(self->connection->db, NULL);
+ goto error;
+ }
+
+ if (*script_cstr == (char)0) {
+ break;
+ }
+ }
+
+error:
+ Py_XDECREF(script_str);
+
+ if (PyErr_Occurred()) {
+ return NULL;
+ } else {
+ Py_INCREF(self);
+ return (PyObject*)self;
+ }
+}
+
+PyObject* pysqlite_cursor_getiter(pysqlite_Cursor *self)
+{
+ Py_INCREF(self);
+ return (PyObject*)self;
+}
+
+PyObject* pysqlite_cursor_iternext(pysqlite_Cursor *self)
+{
+ PyObject* next_row_tuple;
+ PyObject* next_row;
+ int rc;
+
+ if (!check_cursor(self)) {
+ return NULL;
+ }
+
+ if (self->reset) {
+ PyErr_SetString(pysqlite_InterfaceError, errmsg_fetch_across_rollback);
+ return NULL;
+ }
+
+ if (!self->next_row) {
+ if (self->statement) {
+ (void)pysqlite_statement_reset(self->statement);
+ Py_DECREF(self->statement);
+ self->statement = NULL;
+ }
+ return NULL;
+ }
+
+ next_row_tuple = self->next_row;
+ self->next_row = NULL;
+
+ if (self->row_factory != Py_None) {
+ next_row = PyObject_CallFunction(self->row_factory, "OO", self, next_row_tuple);
+ Py_DECREF(next_row_tuple);
+ } else {
+ next_row = next_row_tuple;
+ }
+
+ if (self->statement) {
+ rc = pysqlite_step(self->statement->st, self->connection);
+ if (rc != SQLITE_DONE && rc != SQLITE_ROW) {
+ (void)pysqlite_statement_reset(self->statement);
+ Py_DECREF(next_row);
+ _pysqlite_seterror(self->connection->db, NULL);
+ return NULL;
+ }
+
+ if (rc == SQLITE_ROW) {
+ self->next_row = _pysqlite_fetch_one_row(self);
+ }
+ }
+
+ return next_row;
+}
+
+PyObject* pysqlite_cursor_fetchone(pysqlite_Cursor* self, PyObject* args)
+{
+ PyObject* row;
+
+ row = pysqlite_cursor_iternext(self);
+ if (!row && !PyErr_Occurred()) {
+ Py_INCREF(Py_None);
+ return Py_None;
+ }
+
+ return row;
+}
+
+PyObject* pysqlite_cursor_fetchmany(pysqlite_Cursor* self, PyObject* args, PyObject* kwargs)
+{
+ static char *kwlist[] = {"size", NULL, NULL};
+
+ PyObject* row;
+ PyObject* list;
+ int maxrows = self->arraysize;
+ int counter = 0;
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i:fetchmany", kwlist, &maxrows)) {
+ return NULL;
+ }
+
+ list = PyList_New(0);
+ if (!list) {
+ return NULL;
+ }
+
+ /* just make sure we enter the loop */
+ row = Py_None;
+
+ while (row) {
+ row = pysqlite_cursor_iternext(self);
+ if (row) {
+ PyList_Append(list, row);
+ Py_DECREF(row);
+ } else {
+ break;
+ }
+
+ if (++counter == maxrows) {
+ break;
+ }
+ }
+
+ if (PyErr_Occurred()) {
+ Py_DECREF(list);
+ return NULL;
+ } else {
+ return list;
+ }
+}
+
+PyObject* pysqlite_cursor_fetchall(pysqlite_Cursor* self, PyObject* args)
+{
+ PyObject* row;
+ PyObject* list;
+
+ list = PyList_New(0);
+ if (!list) {
+ return NULL;
+ }
+
+ /* just make sure we enter the loop */
+ row = (PyObject*)Py_None;
+
+ while (row) {
+ row = pysqlite_cursor_iternext(self);
+ if (row) {
+ PyList_Append(list, row);
+ Py_DECREF(row);
+ }
+ }
+
+ if (PyErr_Occurred()) {
+ Py_DECREF(list);
+ return NULL;
+ } else {
+ return list;
+ }
+}
+
+PyObject* pysqlite_noop(pysqlite_Connection* self, PyObject* args)
+{
+ /* don't care, return None */
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+PyObject* pysqlite_cursor_close(pysqlite_Cursor* self, PyObject* args)
+{
+ if (!pysqlite_check_thread(self->connection) || !pysqlite_check_connection(self->connection)) {
+ return NULL;
+ }
+
+ if (self->statement) {
+ (void)pysqlite_statement_reset(self->statement);
+ Py_CLEAR(self->statement);
+ }
+
+ self->closed = 1;
+
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+static PyMethodDef cursor_methods[] = {
+ {"execute", (PyCFunction)pysqlite_cursor_execute, METH_VARARGS,
+ PyDoc_STR("Executes a SQL statement.")},
+ {"executemany", (PyCFunction)pysqlite_cursor_executemany, METH_VARARGS,
+ PyDoc_STR("Repeatedly executes a SQL statement.")},
+ {"executescript", (PyCFunction)pysqlite_cursor_executescript, METH_VARARGS,
+ PyDoc_STR("Executes a multiple SQL statements at once. Non-standard.")},
+ {"fetchone", (PyCFunction)pysqlite_cursor_fetchone, METH_NOARGS,
+ PyDoc_STR("Fetches one row from the resultset.")},
+ {"fetchmany", (PyCFunction)pysqlite_cursor_fetchmany, METH_VARARGS|METH_KEYWORDS,
+ PyDoc_STR("Fetches several rows from the resultset.")},
+ {"fetchall", (PyCFunction)pysqlite_cursor_fetchall, METH_NOARGS,
+ PyDoc_STR("Fetches all rows from the resultset.")},
+ {"close", (PyCFunction)pysqlite_cursor_close, METH_NOARGS,
+ PyDoc_STR("Closes the cursor.")},
+ {"setinputsizes", (PyCFunction)pysqlite_noop, METH_VARARGS,
+ PyDoc_STR("Required by DB-API. Does nothing in pysqlite.")},
+ {"setoutputsize", (PyCFunction)pysqlite_noop, METH_VARARGS,
+ PyDoc_STR("Required by DB-API. Does nothing in pysqlite.")},
+ {NULL, NULL}
+};
+
+static struct PyMemberDef cursor_members[] =
+{
+ {"connection", T_OBJECT, offsetof(pysqlite_Cursor, connection), RO},
+ {"description", T_OBJECT, offsetof(pysqlite_Cursor, description), RO},
+ {"arraysize", T_INT, offsetof(pysqlite_Cursor, arraysize), 0},
+ {"lastrowid", T_OBJECT, offsetof(pysqlite_Cursor, lastrowid), RO},
+ {"rowcount", T_LONG, offsetof(pysqlite_Cursor, rowcount), RO},
+ {"row_factory", T_OBJECT, offsetof(pysqlite_Cursor, row_factory), 0},
+ {NULL}
+};
+
+static char cursor_doc[] =
+PyDoc_STR("SQLite database cursor class.");
+
+PyTypeObject pysqlite_CursorType = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ MODULE_NAME ".Cursor", /* tp_name */
+ sizeof(pysqlite_Cursor), /* tp_basicsize */
+ 0, /* tp_itemsize */
+ (destructor)pysqlite_cursor_dealloc, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ 0, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ 0, /* tp_call */
+ 0, /* tp_str */
+ 0, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_ITER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_WEAKREFS, /* tp_flags */
+ cursor_doc, /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ offsetof(pysqlite_Cursor, in_weakreflist), /* tp_weaklistoffset */
+ (getiterfunc)pysqlite_cursor_getiter, /* tp_iter */
+ (iternextfunc)pysqlite_cursor_iternext, /* tp_iternext */
+ cursor_methods, /* tp_methods */
+ cursor_members, /* tp_members */
+ 0, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+ 0, /* tp_dictoffset */
+ (initproc)pysqlite_cursor_init, /* tp_init */
+ 0, /* tp_alloc */
+ 0, /* tp_new */
+ 0 /* tp_free */
+};
+
+extern int pysqlite_cursor_setup_types(void)
+{
+ pysqlite_CursorType.tp_new = PyType_GenericNew;
+ return PyType_Ready(&pysqlite_CursorType);
+}
diff --git a/src/cursor.h b/src/cursor.h
new file mode 100644
index 0000000..82f5972
--- /dev/null
+++ b/src/cursor.h
@@ -0,0 +1,74 @@
+/* cursor.h - definitions for the cursor type
+ *
+ * Copyright (C) 2004-2010 Gerhard Häring <gh@ghaering.de>
+ *
+ * This file is part of pysqlite.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#ifndef PYSQLITE_CURSOR_H
+#define PYSQLITE_CURSOR_H
+#include "Python.h"
+
+#include "statement.h"
+#include "connection.h"
+#include "module.h"
+
+typedef struct
+{
+ PyObject_HEAD
+ pysqlite_Connection* connection;
+ PyObject* description;
+ PyObject* row_cast_map;
+ int arraysize;
+ PyObject* lastrowid;
+ long rowcount;
+ PyObject* row_factory;
+ pysqlite_Statement* statement;
+ int closed;
+ int reset;
+ int initialized;
+
+ /* the next row to be returned, NULL if no next row available */
+ PyObject* next_row;
+
+ PyObject* in_weakreflist; /* List of weak references */
+} pysqlite_Cursor;
+
+typedef enum {
+ STATEMENT_INVALID, STATEMENT_INSERT, STATEMENT_DELETE,
+ STATEMENT_UPDATE, STATEMENT_REPLACE, STATEMENT_SELECT,
+ STATEMENT_OTHER
+} pysqlite_StatementKind;
+
+extern PyTypeObject pysqlite_CursorType;
+
+PyObject* pysqlite_cursor_execute(pysqlite_Cursor* self, PyObject* args);
+PyObject* pysqlite_cursor_executemany(pysqlite_Cursor* self, PyObject* args);
+PyObject* pysqlite_cursor_getiter(pysqlite_Cursor *self);
+PyObject* pysqlite_cursor_iternext(pysqlite_Cursor *self);
+PyObject* pysqlite_cursor_fetchone(pysqlite_Cursor* self, PyObject* args);
+PyObject* pysqlite_cursor_fetchmany(pysqlite_Cursor* self, PyObject* args, PyObject* kwargs);
+PyObject* pysqlite_cursor_fetchall(pysqlite_Cursor* self, PyObject* args);
+PyObject* pysqlite_noop(pysqlite_Connection* self, PyObject* args);
+PyObject* pysqlite_cursor_close(pysqlite_Cursor* self, PyObject* args);
+
+int pysqlite_cursor_setup_types(void);
+
+#define UNKNOWN (-1)
+#endif
diff --git a/src/microprotocols.c b/src/microprotocols.c
new file mode 100644
index 0000000..c730afa
--- /dev/null
+++ b/src/microprotocols.c
@@ -0,0 +1,142 @@
+/* microprotocols.c - minimalist and non-validating protocols implementation
+ *
+ * Copyright (C) 2003-2004 Federico Di Gregorio <fog@debian.org>
+ *
+ * This file is part of psycopg and was adapted for pysqlite. Federico Di
+ * Gregorio gave the permission to use it within pysqlite under the following
+ * license:
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#include <Python.h>
+#include <structmember.h>
+
+#include "cursor.h"
+#include "microprotocols.h"
+#include "prepare_protocol.h"
+
+
+/** the adapters registry **/
+
+PyObject *psyco_adapters;
+
+/* pysqlite_microprotocols_init - initialize the adapters dictionary */
+
+int
+pysqlite_microprotocols_init(PyObject *dict)
+{
+ /* create adapters dictionary and put it in module namespace */
+ if ((psyco_adapters = PyDict_New()) == NULL) {
+ return -1;
+ }
+
+ return PyDict_SetItemString(dict, "adapters", psyco_adapters);
+}
+
+
+/* pysqlite_microprotocols_add - add a reverse type-caster to the dictionary */
+
+int
+pysqlite_microprotocols_add(PyTypeObject *type, PyObject *proto, PyObject *cast)
+{
+ PyObject* key;
+ int rc;
+
+ if (proto == NULL) proto = (PyObject*)&pysqlite_PrepareProtocolType;
+
+ key = Py_BuildValue("(OO)", (PyObject*)type, proto);
+ if (!key) {
+ return -1;
+ }
+
+ rc = PyDict_SetItem(psyco_adapters, key, cast);
+ Py_DECREF(key);
+
+ return rc;
+}
+
+/* pysqlite_microprotocols_adapt - adapt an object to the built-in protocol */
+
+PyObject *
+pysqlite_microprotocols_adapt(PyObject *obj, PyObject *proto, PyObject *alt)
+{
+ PyObject *adapter, *key;
+
+ /* we don't check for exact type conformance as specified in PEP 246
+ because the pysqlite_PrepareProtocolType type is abstract and there is no
+ way to get a quotable object to be its instance */
+
+ /* look for an adapter in the registry */
+ key = Py_BuildValue("(OO)", (PyObject*)obj->ob_type, proto);
+ if (!key) {
+ return NULL;
+ }
+ adapter = PyDict_GetItem(psyco_adapters, key);
+ Py_DECREF(key);
+ if (adapter) {
+ PyObject *adapted = PyObject_CallFunctionObjArgs(adapter, obj, NULL);
+ return adapted;
+ }
+
+ /* try to have the protocol adapt this object*/
+ if (PyObject_HasAttrString(proto, "__adapt__")) {
+ PyObject *adapted = PyObject_CallMethod(proto, "__adapt__", "O", obj);
+ if (adapted) {
+ if (adapted != Py_None) {
+ return adapted;
+ } else {
+ Py_DECREF(adapted);
+ }
+ }
+
+ if (PyErr_Occurred() && !PyErr_ExceptionMatches(PyExc_TypeError))
+ return NULL;
+ }
+
+ /* and finally try to have the object adapt itself */
+ if (PyObject_HasAttrString(obj, "__conform__")) {
+ PyObject *adapted = PyObject_CallMethod(obj, "__conform__","O", proto);
+ if (adapted) {
+ if (adapted != Py_None) {
+ return adapted;
+ } else {
+ Py_DECREF(adapted);
+ }
+ }
+
+ if (PyErr_Occurred() && !PyErr_ExceptionMatches(PyExc_TypeError)) {
+ return NULL;
+ }
+ }
+
+ /* else set the right exception and return NULL */
+ PyErr_SetString(pysqlite_ProgrammingError, "can't adapt");
+ return NULL;
+}
+
+/** module-level functions **/
+
+PyObject *
+pysqlite_adapt(pysqlite_Cursor *self, PyObject *args)
+{
+ PyObject *obj, *alt = NULL;
+ PyObject *proto = (PyObject*)&pysqlite_PrepareProtocolType;
+
+ if (!PyArg_ParseTuple(args, "O|OO", &obj, &proto, &alt)) return NULL;
+ return pysqlite_microprotocols_adapt(obj, proto, alt);
+}
diff --git a/src/microprotocols.h b/src/microprotocols.h
new file mode 100644
index 0000000..3a9944f
--- /dev/null
+++ b/src/microprotocols.h
@@ -0,0 +1,55 @@
+/* microprotocols.c - definitions for minimalist and non-validating protocols
+ *
+ * Copyright (C) 2003-2004 Federico Di Gregorio <fog@debian.org>
+ *
+ * This file is part of psycopg and was adapted for pysqlite. Federico Di
+ * Gregorio gave the permission to use it within pysqlite under the following
+ * license:
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#ifndef PSYCOPG_MICROPROTOCOLS_H
+#define PSYCOPG_MICROPROTOCOLS_H 1
+
+#include <Python.h>
+
+/** adapters registry **/
+
+extern PyObject *psyco_adapters;
+
+/** the names of the three mandatory methods **/
+
+#define MICROPROTOCOLS_GETQUOTED_NAME "getquoted"
+#define MICROPROTOCOLS_GETSTRING_NAME "getstring"
+#define MICROPROTOCOLS_GETBINARY_NAME "getbinary"
+
+/** exported functions **/
+
+/* used by module.c to init the microprotocols system */
+extern int pysqlite_microprotocols_init(PyObject *dict);
+extern int pysqlite_microprotocols_add(
+ PyTypeObject *type, PyObject *proto, PyObject *cast);
+extern PyObject *pysqlite_microprotocols_adapt(
+ PyObject *obj, PyObject *proto, PyObject *alt);
+
+extern PyObject *
+ pysqlite_adapt(pysqlite_Cursor* self, PyObject *args);
+#define pysqlite_adapt_doc \
+ "adapt(obj, protocol, alternate) -> adapt obj to given protocol. Non-standard."
+
+#endif /* !defined(PSYCOPG_MICROPROTOCOLS_H) */
diff --git a/src/module.c b/src/module.c
new file mode 100644
index 0000000..dbc015c
--- /dev/null
+++ b/src/module.c
@@ -0,0 +1,464 @@
+/* module.c - the module itself
+ *
+ * Copyright (C) 2004-2010 Gerhard Häring <gh@ghaering.de>
+ *
+ * This file is part of pysqlite.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#include "connection.h"
+#include "statement.h"
+#include "cursor.h"
+#include "cache.h"
+#include "prepare_protocol.h"
+#include "microprotocols.h"
+#include "row.h"
+
+#ifdef PYSQLITE_EXPERIMENTAL
+#include "backup.h"
+#endif
+
+#if SQLITE_VERSION_NUMBER >= 3003003
+#define HAVE_SHARED_CACHE
+#endif
+
+/* static objects at module-level */
+
+PyObject* pysqlite_Error, *pysqlite_Warning, *pysqlite_InterfaceError, *pysqlite_DatabaseError,
+ *pysqlite_InternalError, *pysqlite_OperationalError, *pysqlite_ProgrammingError,
+ *pysqlite_IntegrityError, *pysqlite_DataError, *pysqlite_NotSupportedError, *pysqlite_OptimizedUnicode;
+
+PyObject* converters;
+int _enable_callback_tracebacks;
+int pysqlite_BaseTypeAdapted;
+
+static PyObject* module_connect(PyObject* self, PyObject* args, PyObject*
+ kwargs)
+{
+ /* Python seems to have no way of extracting a single keyword-arg at
+ * C-level, so this code is redundant with the one in connection_init in
+ * connection.c and must always be copied from there ... */
+
+ static char *kwlist[] = {"database", "timeout", "detect_types", "isolation_level", "check_same_thread", "factory", "cached_statements", NULL, NULL};
+ PyObject* database;
+ int detect_types = 0;
+ PyObject* isolation_level;
+ PyObject* factory = NULL;
+ int check_same_thread = 1;
+ int cached_statements;
+ double timeout = 5.0;
+
+ PyObject* result;
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|diOiOi", kwlist,
+ &database, &timeout, &detect_types, &isolation_level, &check_same_thread, &factory, &cached_statements))
+ {
+ return NULL;
+ }
+
+ if (factory == NULL) {
+ factory = (PyObject*)&pysqlite_ConnectionType;
+ }
+
+ result = PyObject_Call(factory, args, kwargs);
+
+ return result;
+}
+
+PyDoc_STRVAR(module_connect_doc,
+"connect(database[, timeout, isolation_level, detect_types, factory])\n\
+\n\
+Opens a connection to the SQLite database file *database*. You can use\n\
+\":memory:\" to open a database connection to a database that resides in\n\
+RAM instead of on disk.");
+
+static PyObject* module_complete(PyObject* self, PyObject* args, PyObject*
+ kwargs)
+{
+ static char *kwlist[] = {"statement", NULL, NULL};
+ char* statement;
+
+ PyObject* result;
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s", kwlist, &statement))
+ {
+ return NULL;
+ }
+
+ if (sqlite3_complete(statement)) {
+ result = Py_True;
+ } else {
+ result = Py_False;
+ }
+
+ Py_INCREF(result);
+
+ return result;
+}
+
+PyDoc_STRVAR(module_complete_doc,
+"complete_statement(sql)\n\
+\n\
+Checks if a string contains a complete SQL statement. Non-standard.");
+
+#ifdef HAVE_SHARED_CACHE
+static PyObject* module_enable_shared_cache(PyObject* self, PyObject* args, PyObject*
+ kwargs)
+{
+ static char *kwlist[] = {"do_enable", NULL, NULL};
+ int do_enable;
+ int rc;
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i", kwlist, &do_enable))
+ {
+ return NULL;
+ }
+
+ rc = sqlite3_enable_shared_cache(do_enable);
+
+ if (rc != SQLITE_OK) {
+ PyErr_SetString(pysqlite_OperationalError, "Changing the shared_cache flag failed");
+ return NULL;
+ } else {
+ Py_INCREF(Py_None);
+ return Py_None;
+ }
+}
+
+PyDoc_STRVAR(module_enable_shared_cache_doc,
+"enable_shared_cache(do_enable)\n\
+\n\
+Enable or disable shared cache mode for the calling thread.\n\
+Experimental/Non-standard.");
+#endif /* HAVE_SHARED_CACHE */
+
+static PyObject* module_register_adapter(PyObject* self, PyObject* args)
+{
+ PyTypeObject* type;
+ PyObject* caster;
+ int rc;
+
+ if (!PyArg_ParseTuple(args, "OO", &type, &caster)) {
+ return NULL;
+ }
+
+ /* a basic type is adapted; there's a performance optimization if that's not the case
+ * (99 % of all usages) */
+ if (type == &PyInt_Type || type == &PyLong_Type || type == &PyFloat_Type
+ || type == &PyString_Type || type == &PyUnicode_Type || type == &PyBuffer_Type) {
+ pysqlite_BaseTypeAdapted = 1;
+ }
+
+ rc = pysqlite_microprotocols_add(type, (PyObject*)&pysqlite_PrepareProtocolType, caster);
+ if (rc == -1)
+ return NULL;
+
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+PyDoc_STRVAR(module_register_adapter_doc,
+"register_adapter(type, callable)\n\
+\n\
+Registers an adapter with pysqlite's adapter registry. Non-standard.");
+
+static PyObject* module_register_converter(PyObject* self, PyObject* args)
+{
+ PyObject* orig_name;
+ PyObject* name = NULL;
+ PyObject* callable;
+ PyObject* retval = NULL;
+
+ if (!PyArg_ParseTuple(args, "SO", &orig_name, &callable)) {
+ return NULL;
+ }
+
+ /* convert the name to upper case */
+ name = PyObject_CallMethod(orig_name, "upper", "");
+ if (!name) {
+ goto error;
+ }
+
+ if (PyDict_SetItem(converters, name, callable) != 0) {
+ goto error;
+ }
+
+ Py_INCREF(Py_None);
+ retval = Py_None;
+error:
+ Py_XDECREF(name);
+ return retval;
+}
+
+PyDoc_STRVAR(module_register_converter_doc,
+"register_converter(typename, callable)\n\
+\n\
+Registers a converter with pysqlite. Non-standard.");
+
+static PyObject* enable_callback_tracebacks(PyObject* self, PyObject* args)
+{
+ if (!PyArg_ParseTuple(args, "i", &_enable_callback_tracebacks)) {
+ return NULL;
+ }
+
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+PyDoc_STRVAR(enable_callback_tracebacks_doc,
+"enable_callback_tracebacks(flag)\n\
+\n\
+Enable or disable callback functions throwing errors to stderr.");
+
+static void converters_init(PyObject* dict)
+{
+ converters = PyDict_New();
+ if (!converters) {
+ return;
+ }
+
+ PyDict_SetItemString(dict, "converters", converters);
+}
+
+static PyMethodDef module_methods[] = {
+ {"connect", (PyCFunction)module_connect,
+ METH_VARARGS | METH_KEYWORDS, module_connect_doc},
+ {"complete_statement", (PyCFunction)module_complete,
+ METH_VARARGS | METH_KEYWORDS, module_complete_doc},
+#ifdef HAVE_SHARED_CACHE
+ {"enable_shared_cache", (PyCFunction)module_enable_shared_cache,
+ METH_VARARGS | METH_KEYWORDS, module_enable_shared_cache_doc},
+#endif
+ {"register_adapter", (PyCFunction)module_register_adapter,
+ METH_VARARGS, module_register_adapter_doc},
+ {"register_converter", (PyCFunction)module_register_converter,
+ METH_VARARGS, module_register_converter_doc},
+ {"adapt", (PyCFunction)pysqlite_adapt, METH_VARARGS,
+ pysqlite_adapt_doc},
+ {"enable_callback_tracebacks", (PyCFunction)enable_callback_tracebacks,
+ METH_VARARGS, enable_callback_tracebacks_doc},
+ {NULL, NULL}
+};
+
+struct _IntConstantPair {
+ char* constant_name;
+ int constant_value;
+};
+
+typedef struct _IntConstantPair IntConstantPair;
+
+static IntConstantPair _int_constants[] = {
+ {"PARSE_DECLTYPES", PARSE_DECLTYPES},
+ {"PARSE_COLNAMES", PARSE_COLNAMES},
+
+ {"SQLITE_OK", SQLITE_OK},
+ {"SQLITE_DENY", SQLITE_DENY},
+ {"SQLITE_IGNORE", SQLITE_IGNORE},
+ {"SQLITE_CREATE_INDEX", SQLITE_CREATE_INDEX},
+ {"SQLITE_CREATE_TABLE", SQLITE_CREATE_TABLE},
+ {"SQLITE_CREATE_TEMP_INDEX", SQLITE_CREATE_TEMP_INDEX},
+ {"SQLITE_CREATE_TEMP_TABLE", SQLITE_CREATE_TEMP_TABLE},
+ {"SQLITE_CREATE_TEMP_TRIGGER", SQLITE_CREATE_TEMP_TRIGGER},
+ {"SQLITE_CREATE_TEMP_VIEW", SQLITE_CREATE_TEMP_VIEW},
+ {"SQLITE_CREATE_TRIGGER", SQLITE_CREATE_TRIGGER},
+ {"SQLITE_CREATE_VIEW", SQLITE_CREATE_VIEW},
+ {"SQLITE_DELETE", SQLITE_DELETE},
+ {"SQLITE_DROP_INDEX", SQLITE_DROP_INDEX},
+ {"SQLITE_DROP_TABLE", SQLITE_DROP_TABLE},
+ {"SQLITE_DROP_TEMP_INDEX", SQLITE_DROP_TEMP_INDEX},
+ {"SQLITE_DROP_TEMP_TABLE", SQLITE_DROP_TEMP_TABLE},
+ {"SQLITE_DROP_TEMP_TRIGGER", SQLITE_DROP_TEMP_TRIGGER},
+ {"SQLITE_DROP_TEMP_VIEW", SQLITE_DROP_TEMP_VIEW},
+ {"SQLITE_DROP_TRIGGER", SQLITE_DROP_TRIGGER},
+ {"SQLITE_DROP_VIEW", SQLITE_DROP_VIEW},
+ {"SQLITE_INSERT", SQLITE_INSERT},
+ {"SQLITE_PRAGMA", SQLITE_PRAGMA},
+ {"SQLITE_READ", SQLITE_READ},
+ {"SQLITE_SELECT", SQLITE_SELECT},
+ {"SQLITE_TRANSACTION", SQLITE_TRANSACTION},
+ {"SQLITE_UPDATE", SQLITE_UPDATE},
+ {"SQLITE_ATTACH", SQLITE_ATTACH},
+ {"SQLITE_DETACH", SQLITE_DETACH},
+#if SQLITE_VERSION_NUMBER >= 3002001
+ {"SQLITE_ALTER_TABLE", SQLITE_ALTER_TABLE},
+ {"SQLITE_REINDEX", SQLITE_REINDEX},
+#endif
+#if SQLITE_VERSION_NUMBER >= 3003000
+ {"SQLITE_ANALYZE", SQLITE_ANALYZE},
+#endif
+ {(char*)NULL, 0}
+};
+
+PyMODINIT_FUNC init_sqlite(void)
+{
+ PyObject *module, *dict;
+ PyObject *tmp_obj;
+ int i;
+
+ module = Py_InitModule("pysqlcipher._sqlite", module_methods);
+
+ if (!module ||
+ (pysqlite_row_setup_types() < 0) ||
+ (pysqlite_cursor_setup_types() < 0) ||
+ (pysqlite_connection_setup_types() < 0) ||
+ (pysqlite_cache_setup_types() < 0) ||
+ (pysqlite_statement_setup_types() < 0) ||
+ #ifdef PYSQLITE_EXPERIMENTAL
+ (pysqlite_backup_setup_types() < 0) ||
+ #endif
+ (pysqlite_prepare_protocol_setup_types() < 0)
+ ) {
+ return;
+ }
+
+ Py_INCREF(&pysqlite_ConnectionType);
+ PyModule_AddObject(module, "Connection", (PyObject*) &pysqlite_ConnectionType);
+ Py_INCREF(&pysqlite_CursorType);
+ PyModule_AddObject(module, "Cursor", (PyObject*) &pysqlite_CursorType);
+ Py_INCREF(&pysqlite_CacheType);
+ PyModule_AddObject(module, "Statement", (PyObject*)&pysqlite_StatementType);
+ Py_INCREF(&pysqlite_StatementType);
+ PyModule_AddObject(module, "Cache", (PyObject*) &pysqlite_CacheType);
+ Py_INCREF(&pysqlite_PrepareProtocolType);
+ PyModule_AddObject(module, "PrepareProtocol", (PyObject*) &pysqlite_PrepareProtocolType);
+ Py_INCREF(&pysqlite_RowType);
+ PyModule_AddObject(module, "Row", (PyObject*) &pysqlite_RowType);
+
+ if (!(dict = PyModule_GetDict(module))) {
+ goto error;
+ }
+
+ /*** Create DB-API Exception hierarchy */
+
+ if (!(pysqlite_Error = PyErr_NewException(MODULE_NAME ".Error", PyExc_StandardError, NULL))) {
+ goto error;
+ }
+ PyDict_SetItemString(dict, "Error", pysqlite_Error);
+
+ if (!(pysqlite_Warning = PyErr_NewException(MODULE_NAME ".Warning", PyExc_StandardError, NULL))) {
+ goto error;
+ }
+ PyDict_SetItemString(dict, "Warning", pysqlite_Warning);
+
+ /* Error subclasses */
+
+ if (!(pysqlite_InterfaceError = PyErr_NewException(MODULE_NAME ".InterfaceError", pysqlite_Error, NULL))) {
+ goto error;
+ }
+ PyDict_SetItemString(dict, "InterfaceError", pysqlite_InterfaceError);
+
+ if (!(pysqlite_DatabaseError = PyErr_NewException(MODULE_NAME ".DatabaseError", pysqlite_Error, NULL))) {
+ goto error;
+ }
+ PyDict_SetItemString(dict, "DatabaseError", pysqlite_DatabaseError);
+
+ /* pysqlite_DatabaseError subclasses */
+
+ if (!(pysqlite_InternalError = PyErr_NewException(MODULE_NAME ".InternalError", pysqlite_DatabaseError, NULL))) {
+ goto error;
+ }
+ PyDict_SetItemString(dict, "InternalError", pysqlite_InternalError);
+
+ if (!(pysqlite_OperationalError = PyErr_NewException(MODULE_NAME ".OperationalError", pysqlite_DatabaseError, NULL))) {
+ goto error;
+ }
+ PyDict_SetItemString(dict, "OperationalError", pysqlite_OperationalError);
+
+ if (!(pysqlite_ProgrammingError = PyErr_NewException(MODULE_NAME ".ProgrammingError", pysqlite_DatabaseError, NULL))) {
+ goto error;
+ }
+ PyDict_SetItemString(dict, "ProgrammingError", pysqlite_ProgrammingError);
+
+ if (!(pysqlite_IntegrityError = PyErr_NewException(MODULE_NAME ".IntegrityError", pysqlite_DatabaseError,NULL))) {
+ goto error;
+ }
+ PyDict_SetItemString(dict, "IntegrityError", pysqlite_IntegrityError);
+
+ if (!(pysqlite_DataError = PyErr_NewException(MODULE_NAME ".DataError", pysqlite_DatabaseError, NULL))) {
+ goto error;
+ }
+ PyDict_SetItemString(dict, "DataError", pysqlite_DataError);
+
+ if (!(pysqlite_NotSupportedError = PyErr_NewException(MODULE_NAME ".NotSupportedError", pysqlite_DatabaseError, NULL))) {
+ goto error;
+ }
+ PyDict_SetItemString(dict, "NotSupportedError", pysqlite_NotSupportedError);
+
+ /* We just need "something" unique for pysqlite_OptimizedUnicode. It does not really
+ * need to be a string subclass. Just anything that can act as a special
+ * marker for us. So I pulled PyCell_Type out of my magic hat.
+ */
+ Py_INCREF((PyObject*)&PyCell_Type);
+ pysqlite_OptimizedUnicode = (PyObject*)&PyCell_Type;
+ PyDict_SetItemString(dict, "OptimizedUnicode", pysqlite_OptimizedUnicode);
+
+ /* Set integer constants */
+ for (i = 0; _int_constants[i].constant_name != 0; i++) {
+ tmp_obj = PyInt_FromLong(_int_constants[i].constant_value);
+ if (!tmp_obj) {
+ goto error;
+ }
+ PyDict_SetItemString(dict, _int_constants[i].constant_name, tmp_obj);
+ Py_DECREF(tmp_obj);
+ }
+
+ if (!(tmp_obj = PyString_FromString(PYSQLITE_VERSION))) {
+ goto error;
+ }
+ PyDict_SetItemString(dict, "version", tmp_obj);
+ Py_DECREF(tmp_obj);
+
+ if (!(tmp_obj = PyString_FromString(sqlite3_libversion()))) {
+ goto error;
+ }
+ PyDict_SetItemString(dict, "sqlite_version", tmp_obj);
+ Py_DECREF(tmp_obj);
+
+ /* initialize microprotocols layer */
+ pysqlite_microprotocols_init(dict);
+
+ /* initialize the default converters */
+ converters_init(dict);
+
+ _enable_callback_tracebacks = 0;
+
+ pysqlite_BaseTypeAdapted = 0;
+
+ /* Original comment from _bsddb.c in the Python core. This is also still
+ * needed nowadays for Python 2.3/2.4.
+ *
+ * PyEval_InitThreads is called here due to a quirk in python 1.5
+ * - 2.2.1 (at least) according to Russell Williamson <merel@wt.net>:
+ * The global interpreter lock is not initialized until the first
+ * thread is created using thread.start_new_thread() or fork() is
+ * called. that would cause the ALLOW_THREADS here to segfault due
+ * to a null pointer reference if no threads or child processes
+ * have been created. This works around that and is a no-op if
+ * threads have already been initialized.
+ * (see pybsddb-users mailing list post on 2002-08-07)
+ */
+#ifdef WITH_THREAD
+ PyEval_InitThreads();
+#endif
+
+error:
+ if (PyErr_Occurred())
+ {
+ PyErr_SetString(PyExc_ImportError, "pysqlcipher._sqlite: init failed");
+ }
+}
diff --git a/src/module.h b/src/module.h
new file mode 100644
index 0000000..0b1dab3
--- /dev/null
+++ b/src/module.h
@@ -0,0 +1,58 @@
+/* module.h - definitions for the module
+ *
+ * Copyright (C) 2004-2010 Gerhard Häring <gh@ghaering.de>
+ *
+ * This file is part of pysqlite.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#ifndef PYSQLITE_MODULE_H
+#define PYSQLITE_MODULE_H
+#include "Python.h"
+
+#define PYSQLITE_VERSION "2.6.3"
+
+extern PyObject* pysqlite_Error;
+extern PyObject* pysqlite_Warning;
+extern PyObject* pysqlite_InterfaceError;
+extern PyObject* pysqlite_DatabaseError;
+extern PyObject* pysqlite_InternalError;
+extern PyObject* pysqlite_OperationalError;
+extern PyObject* pysqlite_ProgrammingError;
+extern PyObject* pysqlite_IntegrityError;
+extern PyObject* pysqlite_DataError;
+extern PyObject* pysqlite_NotSupportedError;
+
+extern PyObject* pysqlite_OptimizedUnicode;
+
+/* the functions time.time() and time.sleep() */
+extern PyObject* time_time;
+extern PyObject* time_sleep;
+
+/* A dictionary, mapping colum types (INTEGER, VARCHAR, etc.) to converter
+ * functions, that convert the SQL value to the appropriate Python value.
+ * The key is uppercase.
+ */
+extern PyObject* converters;
+
+extern int _enable_callback_tracebacks;
+extern int pysqlite_BaseTypeAdapted;
+
+#define PARSE_DECLTYPES 1
+#define PARSE_COLNAMES 2
+#endif
diff --git a/src/prepare_protocol.c b/src/prepare_protocol.c
new file mode 100644
index 0000000..9ed25e1
--- /dev/null
+++ b/src/prepare_protocol.c
@@ -0,0 +1,84 @@
+/* prepare_protocol.c - the protocol for preparing values for SQLite
+ *
+ * Copyright (C) 2005-2010 Gerhard Häring <gh@ghaering.de>
+ *
+ * This file is part of pysqlite.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#include "sqlitecompat.h"
+#include "prepare_protocol.h"
+
+int pysqlite_prepare_protocol_init(pysqlite_PrepareProtocol* self, PyObject* args, PyObject* kwargs)
+{
+ return 0;
+}
+
+void pysqlite_prepare_protocol_dealloc(pysqlite_PrepareProtocol* self)
+{
+ Py_TYPE(self)->tp_free((PyObject*)self);
+}
+
+PyTypeObject pysqlite_PrepareProtocolType= {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ MODULE_NAME ".PrepareProtocol", /* tp_name */
+ sizeof(pysqlite_PrepareProtocol), /* tp_basicsize */
+ 0, /* tp_itemsize */
+ (destructor)pysqlite_prepare_protocol_dealloc, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ 0, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ 0, /* tp_call */
+ 0, /* tp_str */
+ 0, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT, /* tp_flags */
+ 0, /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ 0, /* tp_methods */
+ 0, /* tp_members */
+ 0, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+ 0, /* tp_dictoffset */
+ (initproc)pysqlite_prepare_protocol_init, /* tp_init */
+ 0, /* tp_alloc */
+ 0, /* tp_new */
+ 0 /* tp_free */
+};
+
+extern int pysqlite_prepare_protocol_setup_types(void)
+{
+ pysqlite_PrepareProtocolType.tp_new = PyType_GenericNew;
+ Py_TYPE(&pysqlite_PrepareProtocolType)= &PyType_Type;
+ return PyType_Ready(&pysqlite_PrepareProtocolType);
+}
diff --git a/src/prepare_protocol.h b/src/prepare_protocol.h
new file mode 100644
index 0000000..1cdf708
--- /dev/null
+++ b/src/prepare_protocol.h
@@ -0,0 +1,41 @@
+/* prepare_protocol.h - the protocol for preparing values for SQLite
+ *
+ * Copyright (C) 2005-2010 Gerhard Häring <gh@ghaering.de>
+ *
+ * This file is part of pysqlite.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#ifndef PYSQLITE_PREPARE_PROTOCOL_H
+#define PYSQLITE_PREPARE_PROTOCOL_H
+#include "Python.h"
+
+typedef struct
+{
+ PyObject_HEAD
+} pysqlite_PrepareProtocol;
+
+extern PyTypeObject pysqlite_PrepareProtocolType;
+
+int pysqlite_prepare_protocol_init(pysqlite_PrepareProtocol* self, PyObject* args, PyObject* kwargs);
+void pysqlite_prepare_protocol_dealloc(pysqlite_PrepareProtocol* self);
+
+int pysqlite_prepare_protocol_setup_types(void);
+
+#define UNKNOWN (-1)
+#endif
diff --git a/src/row.c b/src/row.c
new file mode 100644
index 0000000..480b482
--- /dev/null
+++ b/src/row.c
@@ -0,0 +1,256 @@
+/* row.c - an enhanced tuple for database rows
+ *
+ * Copyright (C) 2005-2010 Gerhard Häring <gh@ghaering.de>
+ *
+ * This file is part of pysqlite.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#include "row.h"
+#include "cursor.h"
+#include "sqlitecompat.h"
+
+void pysqlite_row_dealloc(pysqlite_Row* self)
+{
+ Py_XDECREF(self->data);
+ Py_XDECREF(self->description);
+
+ Py_TYPE(self)->tp_free((PyObject*)self);
+}
+
+int pysqlite_row_init(pysqlite_Row* self, PyObject* args, PyObject* kwargs)
+{
+ PyObject* data;
+ pysqlite_Cursor* cursor;
+
+ self->data = 0;
+ self->description = 0;
+
+ if (!PyArg_ParseTuple(args, "OO", &cursor, &data)) {
+ return -1;
+ }
+
+ if (!PyObject_IsInstance((PyObject*)cursor, (PyObject*)&pysqlite_CursorType)) {
+ PyErr_SetString(PyExc_TypeError, "instance of cursor required for first argument");
+ return -1;
+ }
+
+ if (!PyTuple_Check(data)) {
+ PyErr_SetString(PyExc_TypeError, "tuple required for second argument");
+ return -1;
+ }
+
+ Py_INCREF(data);
+ self->data = data;
+
+ Py_INCREF(cursor->description);
+ self->description = cursor->description;
+
+ return 0;
+}
+
+PyObject* pysqlite_row_subscript(pysqlite_Row* self, PyObject* idx)
+{
+ long _idx;
+ char* key;
+ int nitems, i;
+ char* compare_key;
+
+ char* p1;
+ char* p2;
+
+ PyObject* item;
+
+ if (PyInt_Check(idx)) {
+ _idx = PyInt_AsLong(idx);
+ item = PyTuple_GetItem(self->data, _idx);
+ Py_XINCREF(item);
+ return item;
+ } else if (PyLong_Check(idx)) {
+ _idx = PyLong_AsLong(idx);
+ item = PyTuple_GetItem(self->data, _idx);
+ Py_XINCREF(item);
+ return item;
+ } else if (PyString_Check(idx)) {
+ key = PyString_AsString(idx);
+
+ nitems = PyTuple_Size(self->description);
+
+ for (i = 0; i < nitems; i++) {
+ compare_key = PyString_AsString(PyTuple_GET_ITEM(PyTuple_GET_ITEM(self->description, i), 0));
+ if (!compare_key) {
+ return NULL;
+ }
+
+ p1 = key;
+ p2 = compare_key;
+
+ while (1) {
+ if ((*p1 == (char)0) || (*p2 == (char)0)) {
+ break;
+ }
+
+ if ((*p1 | 0x20) != (*p2 | 0x20)) {
+ break;
+ }
+
+ p1++;
+ p2++;
+ }
+
+ if ((*p1 == (char)0) && (*p2 == (char)0)) {
+ /* found item */
+ item = PyTuple_GetItem(self->data, i);
+ Py_INCREF(item);
+ return item;
+ }
+
+ }
+
+ PyErr_SetString(PyExc_IndexError, "No item with that key");
+ return NULL;
+ } else if (PySlice_Check(idx)) {
+ PyErr_SetString(PyExc_ValueError, "slices not implemented, yet");
+ return NULL;
+ } else {
+ PyErr_SetString(PyExc_IndexError, "Index must be int or string");
+ return NULL;
+ }
+}
+
+Py_ssize_t pysqlite_row_length(pysqlite_Row* self, PyObject* args, PyObject* kwargs)
+{
+ return PyTuple_GET_SIZE(self->data);
+}
+
+PyObject* pysqlite_row_keys(pysqlite_Row* self, PyObject* args, PyObject* kwargs)
+{
+ PyObject* list;
+ int nitems, i;
+
+ list = PyList_New(0);
+ if (!list) {
+ return NULL;
+ }
+ nitems = PyTuple_Size(self->description);
+
+ for (i = 0; i < nitems; i++) {
+ if (PyList_Append(list, PyTuple_GET_ITEM(PyTuple_GET_ITEM(self->description, i), 0)) != 0) {
+ Py_DECREF(list);
+ return NULL;
+ }
+ }
+
+ return list;
+}
+
+static int pysqlite_row_print(pysqlite_Row* self, FILE *fp, int flags)
+{
+ return (&PyTuple_Type)->tp_print(self->data, fp, flags);
+}
+
+static PyObject* pysqlite_iter(pysqlite_Row* self)
+{
+ return PyObject_GetIter(self->data);
+}
+
+static long pysqlite_row_hash(pysqlite_Row *self)
+{
+ return PyObject_Hash(self->description) ^ PyObject_Hash(self->data);
+}
+
+static PyObject* pysqlite_row_richcompare(pysqlite_Row *self, PyObject *_other, int opid)
+{
+ if (opid != Py_EQ && opid != Py_NE) {
+ Py_INCREF(Py_NotImplemented);
+ return Py_NotImplemented;
+ }
+ if (PyType_IsSubtype(Py_TYPE(_other), &pysqlite_RowType)) {
+ pysqlite_Row *other = (pysqlite_Row *)_other;
+ PyObject *res = PyObject_RichCompare(self->description, other->description, opid);
+ if ((opid == Py_EQ && res == Py_True)
+ || (opid == Py_NE && res == Py_False)) {
+ Py_DECREF(res);
+ return PyObject_RichCompare(self->data, other->data, opid);
+ }
+ }
+ Py_INCREF(Py_NotImplemented);
+ return Py_NotImplemented;
+}
+
+PyMappingMethods pysqlite_row_as_mapping = {
+ /* mp_length */ (lenfunc)pysqlite_row_length,
+ /* mp_subscript */ (binaryfunc)pysqlite_row_subscript,
+ /* mp_ass_subscript */ (objobjargproc)0,
+};
+
+static PyMethodDef pysqlite_row_methods[] = {
+ {"keys", (PyCFunction)pysqlite_row_keys, METH_NOARGS,
+ PyDoc_STR("Returns the keys of the row.")},
+ {NULL, NULL}
+};
+
+
+PyTypeObject pysqlite_RowType = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ MODULE_NAME ".Row", /* tp_name */
+ sizeof(pysqlite_Row), /* tp_basicsize */
+ 0, /* tp_itemsize */
+ (destructor)pysqlite_row_dealloc, /* tp_dealloc */
+ (printfunc)pysqlite_row_print, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ 0, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ (hashfunc)pysqlite_row_hash, /* tp_hash */
+ 0, /* tp_call */
+ 0, /* tp_str */
+ 0, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, /* tp_flags */
+ 0, /* tp_doc */
+ (traverseproc)0, /* tp_traverse */
+ 0, /* tp_clear */
+ (richcmpfunc)pysqlite_row_richcompare, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ (getiterfunc)pysqlite_iter, /* tp_iter */
+ 0, /* tp_iternext */
+ pysqlite_row_methods, /* tp_methods */
+ 0, /* tp_members */
+ 0, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+ 0, /* tp_dictoffset */
+ (initproc)pysqlite_row_init, /* tp_init */
+ 0, /* tp_alloc */
+ 0, /* tp_new */
+ 0 /* tp_free */
+};
+
+extern int pysqlite_row_setup_types(void)
+{
+ pysqlite_RowType.tp_new = PyType_GenericNew;
+ pysqlite_RowType.tp_as_mapping = &pysqlite_row_as_mapping;
+ return PyType_Ready(&pysqlite_RowType);
+}
diff --git a/src/row.h b/src/row.h
new file mode 100644
index 0000000..dd9b0c3
--- /dev/null
+++ b/src/row.h
@@ -0,0 +1,39 @@
+/* row.h - an enhanced tuple for database rows
+ *
+ * Copyright (C) 2005-2010 Gerhard Häring <gh@ghaering.de>
+ *
+ * This file is part of pysqlite.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#ifndef PYSQLITE_ROW_H
+#define PYSQLITE_ROW_H
+#include "Python.h"
+
+typedef struct _Row
+{
+ PyObject_HEAD
+ PyObject* data;
+ PyObject* description;
+} pysqlite_Row;
+
+extern PyTypeObject pysqlite_RowType;
+
+int pysqlite_row_setup_types(void);
+
+#endif
diff --git a/src/sqlitecompat.h b/src/sqlitecompat.h
new file mode 100644
index 0000000..3408fc2
--- /dev/null
+++ b/src/sqlitecompat.h
@@ -0,0 +1,63 @@
+/* sqlitecompat.h - compatibility macros
+ *
+ * Copyright (C) 2006-2010 Gerhard Häring <gh@ghaering.de>
+ *
+ * This file is part of pysqlite.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#include "Python.h"
+
+#ifndef PYSQLITE_COMPAT_H
+#define PYSQLITE_COMPAT_H
+
+/* define Py_ssize_t for pre-2.5 versions of Python */
+
+#if PY_VERSION_HEX < 0x02050000
+typedef int Py_ssize_t;
+typedef int (*lenfunc)(PyObject*);
+#endif
+
+
+/* define PyDict_CheckExact for pre-2.4 versions of Python */
+#ifndef PyDict_CheckExact
+#define PyDict_CheckExact(op) ((op)->ob_type == &PyDict_Type)
+#endif
+
+/* define Py_CLEAR for pre-2.4 versions of Python */
+#ifndef Py_CLEAR
+#define Py_CLEAR(op) \
+ do { \
+ if (op) { \
+ PyObject *tmp = (PyObject *)(op); \
+ (op) = NULL; \
+ Py_DECREF(tmp); \
+ } \
+ } while (0)
+#endif
+
+#ifndef PyVarObject_HEAD_INIT
+#define PyVarObject_HEAD_INIT(type, size) \
+ PyObject_HEAD_INIT(type) size,
+#endif
+
+#ifndef Py_TYPE
+#define Py_TYPE(ob) ((ob)->ob_type)
+#endif
+
+#endif
diff --git a/src/statement.c b/src/statement.c
new file mode 100644
index 0000000..9d08f2b
--- /dev/null
+++ b/src/statement.c
@@ -0,0 +1,543 @@
+/* statement.c - the statement type
+ *
+ * Copyright (C) 2005-2010 Gerhard Häring <gh@ghaering.de>
+ *
+ * This file is part of pysqlite.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#include "statement.h"
+#include "cursor.h"
+#include "connection.h"
+#include "microprotocols.h"
+#include "prepare_protocol.h"
+#include "sqlitecompat.h"
+
+/* prototypes */
+static int pysqlite_check_remaining_sql(const char* tail);
+
+typedef enum {
+ LINECOMMENT_1,
+ IN_LINECOMMENT,
+ COMMENTSTART_1,
+ IN_COMMENT,
+ COMMENTEND_1,
+ NORMAL
+} parse_remaining_sql_state;
+
+typedef enum {
+ TYPE_INT,
+ TYPE_LONG,
+ TYPE_FLOAT,
+ TYPE_STRING,
+ TYPE_UNICODE,
+ TYPE_BUFFER,
+ TYPE_UNKNOWN
+} parameter_type;
+
+int pysqlite_statement_create(pysqlite_Statement* self, pysqlite_Connection* connection, PyObject* sql)
+{
+ const char* tail;
+ int rc;
+ PyObject* sql_str;
+ char* sql_cstr;
+
+ self->st = NULL;
+ self->in_use = 0;
+
+ if (PyString_Check(sql)) {
+ sql_str = sql;
+ Py_INCREF(sql_str);
+ } else if (PyUnicode_Check(sql)) {
+ sql_str = PyUnicode_AsUTF8String(sql);
+ if (!sql_str) {
+ rc = PYSQLITE_SQL_WRONG_TYPE;
+ return rc;
+ }
+ } else {
+ rc = PYSQLITE_SQL_WRONG_TYPE;
+ return rc;
+ }
+
+ self->in_weakreflist = NULL;
+ self->sql = sql_str;
+
+ sql_cstr = PyString_AsString(sql_str);
+
+ Py_BEGIN_ALLOW_THREADS
+ rc = sqlite3_prepare(connection->db,
+ sql_cstr,
+ -1,
+ &self->st,
+ &tail);
+ Py_END_ALLOW_THREADS
+
+ self->db = connection->db;
+
+ if (rc == SQLITE_OK && pysqlite_check_remaining_sql(tail)) {
+ (void)sqlite3_finalize(self->st);
+ self->st = NULL;
+ rc = PYSQLITE_TOO_MUCH_SQL;
+ }
+
+ return rc;
+}
+
+int pysqlite_statement_bind_parameter(pysqlite_Statement* self, int pos, PyObject* parameter, int allow_8bit_chars)
+{
+ int rc = SQLITE_OK;
+ long longval;
+ PY_LONG_LONG longlongval;
+ const char* buffer;
+ char* string;
+ Py_ssize_t buflen;
+ PyObject* stringval;
+ parameter_type paramtype;
+ char* c;
+
+ if (parameter == Py_None) {
+ rc = sqlite3_bind_null(self->st, pos);
+ goto final;
+ }
+
+ if (PyInt_CheckExact(parameter)) {
+ paramtype = TYPE_INT;
+ } else if (PyLong_CheckExact(parameter)) {
+ paramtype = TYPE_LONG;
+ } else if (PyFloat_CheckExact(parameter)) {
+ paramtype = TYPE_FLOAT;
+ } else if (PyString_CheckExact(parameter)) {
+ paramtype = TYPE_STRING;
+ } else if (PyUnicode_CheckExact(parameter)) {
+ paramtype = TYPE_UNICODE;
+ } else if (PyBuffer_Check(parameter)) {
+ paramtype = TYPE_BUFFER;
+ } else if (PyInt_Check(parameter)) {
+ paramtype = TYPE_INT;
+ } else if (PyLong_Check(parameter)) {
+ paramtype = TYPE_LONG;
+ } else if (PyFloat_Check(parameter)) {
+ paramtype = TYPE_FLOAT;
+ } else if (PyString_Check(parameter)) {
+ paramtype = TYPE_STRING;
+ } else if (PyUnicode_Check(parameter)) {
+ paramtype = TYPE_UNICODE;
+ } else {
+ paramtype = TYPE_UNKNOWN;
+ }
+
+ if (paramtype == TYPE_STRING && !allow_8bit_chars) {
+ string = PyString_AS_STRING(parameter);
+ for (c = string; *c != 0; c++) {
+ if (*c & 0x80) {
+ PyErr_SetString(pysqlite_ProgrammingError, "You must not use 8-bit bytestrings unless you use a text_factory that can interpret 8-bit bytestrings (like text_factory = str). It is highly recommended that you instead just switch your application to Unicode strings.");
+ rc = -1;
+ goto final;
+ }
+ }
+ }
+
+ switch (paramtype) {
+ case TYPE_INT:
+ longval = PyInt_AsLong(parameter);
+ rc = sqlite3_bind_int64(self->st, pos, (sqlite_int64)longval);
+ break;
+ case TYPE_LONG:
+ longlongval = PyLong_AsLongLong(parameter);
+ /* in the overflow error case, longlongval is -1, and an exception is set */
+ rc = sqlite3_bind_int64(self->st, pos, (sqlite_int64)longlongval);
+ break;
+ case TYPE_FLOAT:
+ rc = sqlite3_bind_double(self->st, pos, PyFloat_AsDouble(parameter));
+ break;
+ case TYPE_STRING:
+ string = PyString_AS_STRING(parameter);
+ rc = sqlite3_bind_text(self->st, pos, string, -1, SQLITE_TRANSIENT);
+ break;
+ case TYPE_UNICODE:
+ stringval = PyUnicode_AsUTF8String(parameter);
+ string = PyString_AsString(stringval);
+ rc = sqlite3_bind_text(self->st, pos, string, -1, SQLITE_TRANSIENT);
+ Py_DECREF(stringval);
+ break;
+ case TYPE_BUFFER:
+ if (PyObject_AsCharBuffer(parameter, &buffer, &buflen) == 0) {
+ rc = sqlite3_bind_blob(self->st, pos, buffer, buflen, SQLITE_TRANSIENT);
+ } else {
+ PyErr_SetString(PyExc_ValueError, "could not convert BLOB to buffer");
+ rc = -1;
+ }
+ break;
+ case TYPE_UNKNOWN:
+ rc = -1;
+ }
+
+final:
+ return rc;
+}
+
+/* returns 0 if the object is one of Python's internal ones that don't need to be adapted */
+static int _need_adapt(PyObject* obj)
+{
+ if (pysqlite_BaseTypeAdapted) {
+ return 1;
+ }
+
+ if (PyInt_CheckExact(obj) || PyLong_CheckExact(obj)
+ || PyFloat_CheckExact(obj) || PyString_CheckExact(obj)
+ || PyUnicode_CheckExact(obj) || PyBuffer_Check(obj)) {
+ return 0;
+ } else {
+ return 1;
+ }
+}
+
+void pysqlite_statement_bind_parameters(pysqlite_Statement* self, PyObject* parameters, int allow_8bit_chars)
+{
+ PyObject* current_param;
+ PyObject* adapted;
+ const char* binding_name;
+ int i;
+ int rc;
+ int num_params_needed;
+ int num_params;
+
+ Py_BEGIN_ALLOW_THREADS
+ num_params_needed = sqlite3_bind_parameter_count(self->st);
+ Py_END_ALLOW_THREADS
+
+ if (PyTuple_CheckExact(parameters) || PyList_CheckExact(parameters) || (!PyDict_Check(parameters) && PySequence_Check(parameters))) {
+ /* parameters passed as sequence */
+ if (PyTuple_CheckExact(parameters)) {
+ num_params = PyTuple_GET_SIZE(parameters);
+ } else if (PyList_CheckExact(parameters)) {
+ num_params = PyList_GET_SIZE(parameters);
+ } else {
+ num_params = PySequence_Size(parameters);
+ }
+ if (num_params != num_params_needed) {
+ PyErr_Format(pysqlite_ProgrammingError, "Incorrect number of bindings supplied. The current statement uses %d, and there are %d supplied.",
+ num_params_needed, num_params);
+ return;
+ }
+ for (i = 0; i < num_params; i++) {
+ if (PyTuple_CheckExact(parameters)) {
+ current_param = PyTuple_GET_ITEM(parameters, i);
+ Py_XINCREF(current_param);
+ } else if (PyList_CheckExact(parameters)) {
+ current_param = PyList_GET_ITEM(parameters, i);
+ Py_XINCREF(current_param);
+ } else {
+ current_param = PySequence_GetItem(parameters, i);
+ }
+ if (!current_param) {
+ return;
+ }
+
+ if (!_need_adapt(current_param)) {
+ adapted = current_param;
+ } else {
+ adapted = pysqlite_microprotocols_adapt(current_param, (PyObject*)&pysqlite_PrepareProtocolType, NULL);
+ if (adapted) {
+ Py_DECREF(current_param);
+ } else {
+ PyErr_Clear();
+ adapted = current_param;
+ }
+ }
+
+ rc = pysqlite_statement_bind_parameter(self, i + 1, adapted, allow_8bit_chars);
+ Py_DECREF(adapted);
+
+ if (rc != SQLITE_OK) {
+ if (!PyErr_Occurred()) {
+ PyErr_Format(pysqlite_InterfaceError, "Error binding parameter %d - probably unsupported type.", i);
+ }
+ return;
+ }
+ }
+ } else if (PyDict_Check(parameters)) {
+ /* parameters passed as dictionary */
+ for (i = 1; i <= num_params_needed; i++) {
+ Py_BEGIN_ALLOW_THREADS
+ binding_name = sqlite3_bind_parameter_name(self->st, i);
+ Py_END_ALLOW_THREADS
+ if (!binding_name) {
+ PyErr_Format(pysqlite_ProgrammingError, "Binding %d has no name, but you supplied a dictionary (which has only names).", i);
+ return;
+ }
+
+ binding_name++; /* skip first char (the colon) */
+ if (PyDict_CheckExact(parameters)) {
+ current_param = PyDict_GetItemString(parameters, binding_name);
+ Py_XINCREF(current_param);
+ } else {
+ current_param = PyMapping_GetItemString(parameters, (char*)binding_name);
+ }
+ if (!current_param) {
+ PyErr_Format(pysqlite_ProgrammingError, "You did not supply a value for binding %d.", i);
+ return;
+ }
+
+ if (!_need_adapt(current_param)) {
+ adapted = current_param;
+ } else {
+ adapted = pysqlite_microprotocols_adapt(current_param, (PyObject*)&pysqlite_PrepareProtocolType, NULL);
+ if (adapted) {
+ Py_DECREF(current_param);
+ } else {
+ PyErr_Clear();
+ adapted = current_param;
+ }
+ }
+
+ rc = pysqlite_statement_bind_parameter(self, i, adapted, allow_8bit_chars);
+ Py_DECREF(adapted);
+
+ if (rc != SQLITE_OK) {
+ if (!PyErr_Occurred()) {
+ PyErr_Format(pysqlite_InterfaceError, "Error binding parameter :%s - probably unsupported type.", binding_name);
+ }
+ return;
+ }
+ }
+ } else {
+ PyErr_SetString(PyExc_ValueError, "parameters are of unsupported type");
+ }
+}
+
+int pysqlite_statement_recompile(pysqlite_Statement* self, PyObject* params)
+{
+ const char* tail;
+ int rc;
+ char* sql_cstr;
+ sqlite3_stmt* new_st;
+
+ sql_cstr = PyString_AsString(self->sql);
+
+ Py_BEGIN_ALLOW_THREADS
+ rc = sqlite3_prepare(self->db,
+ sql_cstr,
+ -1,
+ &new_st,
+ &tail);
+ Py_END_ALLOW_THREADS
+
+ if (rc == SQLITE_OK) {
+ /* The efficient sqlite3_transfer_bindings is only available in SQLite
+ * version 3.2.2 or later. For older SQLite releases, that might not
+ * even define SQLITE_VERSION_NUMBER, we do it the manual way.
+ */
+ #ifdef SQLITE_VERSION_NUMBER
+ #if SQLITE_VERSION_NUMBER >= 3002002
+ /* The check for the number of parameters is necessary to not trigger a
+ * bug in certain SQLite versions (experienced in 3.2.8 and 3.3.4). */
+ if (sqlite3_bind_parameter_count(self->st) > 0) {
+ (void)sqlite3_transfer_bindings(self->st, new_st);
+ }
+ #endif
+ #else
+ statement_bind_parameters(self, params);
+ #endif
+
+ (void)sqlite3_finalize(self->st);
+ self->st = new_st;
+ }
+
+ return rc;
+}
+
+int pysqlite_statement_finalize(pysqlite_Statement* self)
+{
+ int rc;
+
+ rc = SQLITE_OK;
+ if (self->st) {
+ Py_BEGIN_ALLOW_THREADS
+ rc = sqlite3_finalize(self->st);
+ Py_END_ALLOW_THREADS
+ self->st = NULL;
+ }
+
+ self->in_use = 0;
+
+ return rc;
+}
+
+int pysqlite_statement_reset(pysqlite_Statement* self)
+{
+ int rc;
+
+ rc = SQLITE_OK;
+
+ if (self->in_use && self->st) {
+ Py_BEGIN_ALLOW_THREADS
+ rc = sqlite3_reset(self->st);
+ Py_END_ALLOW_THREADS
+
+ if (rc == SQLITE_OK) {
+ self->in_use = 0;
+ }
+ }
+
+ return rc;
+}
+
+void pysqlite_statement_mark_dirty(pysqlite_Statement* self)
+{
+ self->in_use = 1;
+}
+
+void pysqlite_statement_dealloc(pysqlite_Statement* self)
+{
+ int rc;
+
+ if (self->st) {
+ Py_BEGIN_ALLOW_THREADS
+ rc = sqlite3_finalize(self->st);
+ Py_END_ALLOW_THREADS
+ }
+
+ self->st = NULL;
+
+ Py_XDECREF(self->sql);
+
+ if (self->in_weakreflist != NULL) {
+ PyObject_ClearWeakRefs((PyObject*)self);
+ }
+
+ Py_TYPE(self)->tp_free((PyObject*)self);
+}
+
+/*
+ * Checks if there is anything left in an SQL string after SQLite compiled it.
+ * This is used to check if somebody tried to execute more than one SQL command
+ * with one execute()/executemany() command, which the DB-API and we don't
+ * allow.
+ *
+ * Returns 1 if there is more left than should be. 0 if ok.
+ */
+static int pysqlite_check_remaining_sql(const char* tail)
+{
+ const char* pos = tail;
+
+ parse_remaining_sql_state state = NORMAL;
+
+ for (;;) {
+ switch (*pos) {
+ case 0:
+ return 0;
+ case '-':
+ if (state == NORMAL) {
+ state = LINECOMMENT_1;
+ } else if (state == LINECOMMENT_1) {
+ state = IN_LINECOMMENT;
+ }
+ break;
+ case ' ':
+ case '\t':
+ break;
+ case '\n':
+ case 13:
+ if (state == IN_LINECOMMENT) {
+ state = NORMAL;
+ }
+ break;
+ case '/':
+ if (state == NORMAL) {
+ state = COMMENTSTART_1;
+ } else if (state == COMMENTEND_1) {
+ state = NORMAL;
+ } else if (state == COMMENTSTART_1) {
+ return 1;
+ }
+ break;
+ case '*':
+ if (state == NORMAL) {
+ return 1;
+ } else if (state == LINECOMMENT_1) {
+ return 1;
+ } else if (state == COMMENTSTART_1) {
+ state = IN_COMMENT;
+ } else if (state == IN_COMMENT) {
+ state = COMMENTEND_1;
+ }
+ break;
+ default:
+ if (state == COMMENTEND_1) {
+ state = IN_COMMENT;
+ } else if (state == IN_LINECOMMENT) {
+ } else if (state == IN_COMMENT) {
+ } else {
+ return 1;
+ }
+ }
+
+ pos++;
+ }
+
+ return 0;
+}
+
+PyTypeObject pysqlite_StatementType = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ MODULE_NAME ".Statement", /* tp_name */
+ sizeof(pysqlite_Statement), /* tp_basicsize */
+ 0, /* tp_itemsize */
+ (destructor)pysqlite_statement_dealloc, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ 0, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ 0, /* tp_call */
+ 0, /* tp_str */
+ 0, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_WEAKREFS, /* tp_flags */
+ 0, /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ offsetof(pysqlite_Statement, in_weakreflist), /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ 0, /* tp_methods */
+ 0, /* tp_members */
+ 0, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+ 0, /* tp_dictoffset */
+ (initproc)0, /* tp_init */
+ 0, /* tp_alloc */
+ 0, /* tp_new */
+ 0 /* tp_free */
+};
+
+extern int pysqlite_statement_setup_types(void)
+{
+ pysqlite_StatementType.tp_new = PyType_GenericNew;
+ return PyType_Ready(&pysqlite_StatementType);
+}
diff --git a/src/statement.h b/src/statement.h
new file mode 100644
index 0000000..05fd5ff
--- /dev/null
+++ b/src/statement.h
@@ -0,0 +1,59 @@
+/* statement.h - definitions for the statement type
+ *
+ * Copyright (C) 2005-2010 Gerhard Häring <gh@ghaering.de>
+ *
+ * This file is part of pysqlite.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#ifndef PYSQLITE_STATEMENT_H
+#define PYSQLITE_STATEMENT_H
+#include "Python.h"
+
+#include "connection.h"
+#include "sqlite3.h"
+
+#define PYSQLITE_TOO_MUCH_SQL (-100)
+#define PYSQLITE_SQL_WRONG_TYPE (-101)
+
+typedef struct
+{
+ PyObject_HEAD
+ sqlite3* db;
+ sqlite3_stmt* st;
+ PyObject* sql;
+ int in_use;
+ PyObject* in_weakreflist; /* List of weak references */
+} pysqlite_Statement;
+
+extern PyTypeObject pysqlite_StatementType;
+
+int pysqlite_statement_create(pysqlite_Statement* self, pysqlite_Connection* connection, PyObject* sql);
+void pysqlite_statement_dealloc(pysqlite_Statement* self);
+
+int pysqlite_statement_bind_parameter(pysqlite_Statement* self, int pos, PyObject* parameter, int allow_8bit_chars);
+void pysqlite_statement_bind_parameters(pysqlite_Statement* self, PyObject* parameters, int allow_8bit_chars);
+
+int pysqlite_statement_recompile(pysqlite_Statement* self, PyObject* parameters);
+int pysqlite_statement_finalize(pysqlite_Statement* self);
+int pysqlite_statement_reset(pysqlite_Statement* self);
+void pysqlite_statement_mark_dirty(pysqlite_Statement* self);
+
+int pysqlite_statement_setup_types(void);
+
+#endif
diff --git a/src/util.c b/src/util.c
new file mode 100644
index 0000000..6b57b76
--- /dev/null
+++ b/src/util.c
@@ -0,0 +1,106 @@
+/* util.c - various utility functions
+ *
+ * Copyright (C) 2005-2010 Gerhard Häring <gh@ghaering.de>
+ *
+ * This file is part of pysqlite.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#include "module.h"
+#include "connection.h"
+
+int pysqlite_step(sqlite3_stmt* statement, pysqlite_Connection* connection)
+{
+ int rc;
+
+ if (statement == NULL) {
+ /* this is a workaround for SQLite 3.5 and later. it now apparently
+ * returns NULL for "no-operation" statements */
+ rc = SQLITE_OK;
+ } else {
+ Py_BEGIN_ALLOW_THREADS
+ rc = sqlite3_step(statement);
+ Py_END_ALLOW_THREADS
+ }
+
+ return rc;
+}
+
+/**
+ * Checks the SQLite error code and sets the appropriate DB-API exception.
+ * Returns the error code (0 means no error occurred).
+ */
+int _pysqlite_seterror(sqlite3* db, sqlite3_stmt* st)
+{
+ int errorcode;
+
+ /* SQLite often doesn't report anything useful, unless you reset the statement first */
+ if (st != NULL) {
+ (void)sqlite3_reset(st);
+ }
+
+ errorcode = sqlite3_errcode(db);
+
+ switch (errorcode)
+ {
+ case SQLITE_OK:
+ PyErr_Clear();
+ break;
+ case SQLITE_INTERNAL:
+ case SQLITE_NOTFOUND:
+ PyErr_SetString(pysqlite_InternalError, sqlite3_errmsg(db));
+ break;
+ case SQLITE_NOMEM:
+ (void)PyErr_NoMemory();
+ break;
+ case SQLITE_ERROR:
+ case SQLITE_PERM:
+ case SQLITE_ABORT:
+ case SQLITE_BUSY:
+ case SQLITE_LOCKED:
+ case SQLITE_READONLY:
+ case SQLITE_INTERRUPT:
+ case SQLITE_IOERR:
+ case SQLITE_FULL:
+ case SQLITE_CANTOPEN:
+ case SQLITE_PROTOCOL:
+ case SQLITE_EMPTY:
+ case SQLITE_SCHEMA:
+ PyErr_SetString(pysqlite_OperationalError, sqlite3_errmsg(db));
+ break;
+ case SQLITE_CORRUPT:
+ PyErr_SetString(pysqlite_DatabaseError, sqlite3_errmsg(db));
+ break;
+ case SQLITE_TOOBIG:
+ PyErr_SetString(pysqlite_DataError, sqlite3_errmsg(db));
+ break;
+ case SQLITE_CONSTRAINT:
+ case SQLITE_MISMATCH:
+ PyErr_SetString(pysqlite_IntegrityError, sqlite3_errmsg(db));
+ break;
+ case SQLITE_MISUSE:
+ PyErr_SetString(pysqlite_ProgrammingError, sqlite3_errmsg(db));
+ break;
+ default:
+ PyErr_SetString(pysqlite_DatabaseError, sqlite3_errmsg(db));
+ break;
+ }
+
+ return errorcode;
+}
+
diff --git a/src/util.h b/src/util.h
new file mode 100644
index 0000000..4269003
--- /dev/null
+++ b/src/util.h
@@ -0,0 +1,38 @@
+/* util.h - various utility functions
+ *
+ * Copyright (C) 2005-2010 Gerhard Häring <gh@ghaering.de>
+ *
+ * This file is part of pysqlite.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#ifndef PYSQLITE_UTIL_H
+#define PYSQLITE_UTIL_H
+#include "Python.h"
+#include "pythread.h"
+#include "sqlite3.h"
+#include "connection.h"
+
+int pysqlite_step(sqlite3_stmt* statement, pysqlite_Connection* connection);
+
+/**
+ * Checks the SQLite error code and sets the appropriate DB-API exception.
+ * Returns the error code (0 means no error occurred).
+ */
+int _pysqlite_seterror(sqlite3* db, sqlite3_stmt* st);
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 08:19:26 +0000