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authorKali Kaneko <kali@futeisha.org>2013-02-04 19:20:12 +0900
committerKali Kaneko <kali@futeisha.org>2013-02-04 19:20:12 +0900
commit4189e53a881e52de0945375a72b8748143c5bd13 (patch)
tree23ed8e0600dc3c62da7a95e50f778c79a9be1e75 /src/connection.h
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+/* 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