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diff --git a/mptest/mptest.c b/mptest/mptest.c
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+/*
+** 2013-04-05
+**
+** The author disclaims copyright to this source code. In place of
+** a legal notice, here is a blessing:
+**
+** May you do good and not evil.
+** May you find forgiveness for yourself and forgive others.
+** May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This is a program used for testing SQLite, and specifically for testing
+** the ability of independent processes to access the same SQLite database
+** concurrently.
+**
+** Compile this program as follows:
+**
+** gcc -g -c -Wall sqlite3.c $(OPTS)
+** gcc -g -o mptest mptest.c sqlite3.o $(LIBS)
+**
+** Recommended options:
+**
+** -DHAVE_USLEEP
+** -DSQLITE_NO_SYNC
+** -DSQLITE_THREADSAFE=0
+** -DSQLITE_OMIT_LOAD_EXTENSION
+**
+** Run like this:
+**
+** ./mptest $database $script
+**
+** where $database is the database to use for testing and $script is a
+** test script.
+*/
+#include "sqlite3.h"
+#include <stdio.h>
+#if defined(_WIN32)
+# define WIN32_LEAN_AND_MEAN
+# include <windows.h>
+#else
+# include <unistd.h>
+#endif
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <ctype.h>
+
+/* The suffix to append to the child command lines, if any */
+#if defined(_WIN32)
+# define GETPID (int)GetCurrentProcessId
+#else
+# define GETPID getpid
+#endif
+
+/* Mark a parameter as unused to suppress compiler warnings */
+#define UNUSED_PARAMETER(x) (void)x
+
+/* Global data
+*/
+static struct Global {
+ char *argv0; /* Name of the executable */
+ const char *zVfs; /* Name of VFS to use. Often NULL meaning "default" */
+ char *zDbFile; /* Name of the database */
+ sqlite3 *db; /* Open connection to database */
+ char *zErrLog; /* Filename for error log */
+ FILE *pErrLog; /* Where to write errors */
+ char *zLog; /* Name of output log file */
+ FILE *pLog; /* Where to write log messages */
+ char zName[32]; /* Symbolic name of this process */
+ int taskId; /* Task ID. 0 means supervisor. */
+ int iTrace; /* Tracing level */
+ int bSqlTrace; /* True to trace SQL commands */
+ int bIgnoreSqlErrors; /* Ignore errors in SQL statements */
+ int nError; /* Number of errors */
+ int nTest; /* Number of --match operators */
+ int iTimeout; /* Milliseconds until a busy timeout */
+ int bSync; /* Call fsync() */
+} g;
+
+/* Default timeout */
+#define DEFAULT_TIMEOUT 10000
+
+/*
+** Print a message adding zPrefix[] to the beginning of every line.
+*/
+static void printWithPrefix(FILE *pOut, const char *zPrefix, const char *zMsg){
+ while( zMsg && zMsg[0] ){
+ int i;
+ for(i=0; zMsg[i] && zMsg[i]!='\n' && zMsg[i]!='\r'; i++){}
+ fprintf(pOut, "%s%.*s\n", zPrefix, i, zMsg);
+ zMsg += i;
+ while( zMsg[0]=='\n' || zMsg[0]=='\r' ) zMsg++;
+ }
+}
+
+/*
+** Compare two pointers to strings, where the pointers might be NULL.
+*/
+static int safe_strcmp(const char *a, const char *b){
+ if( a==b ) return 0;
+ if( a==0 ) return -1;
+ if( b==0 ) return 1;
+ return strcmp(a,b);
+}
+
+/*
+** Return TRUE if string z[] matches glob pattern zGlob[].
+** Return FALSE if the pattern does not match.
+**
+** Globbing rules:
+**
+** '*' Matches any sequence of zero or more characters.
+**
+** '?' Matches exactly one character.
+**
+** [...] Matches one character from the enclosed list of
+** characters.
+**
+** [^...] Matches one character not in the enclosed list.
+**
+** '#' Matches any sequence of one or more digits with an
+** optional + or - sign in front
+*/
+int strglob(const char *zGlob, const char *z){
+ int c, c2;
+ int invert;
+ int seen;
+
+ while( (c = (*(zGlob++)))!=0 ){
+ if( c=='*' ){
+ while( (c=(*(zGlob++))) == '*' || c=='?' ){
+ if( c=='?' && (*(z++))==0 ) return 0;
+ }
+ if( c==0 ){
+ return 1;
+ }else if( c=='[' ){
+ while( *z && strglob(zGlob-1,z) ){
+ z++;
+ }
+ return (*z)!=0;
+ }
+ while( (c2 = (*(z++)))!=0 ){
+ while( c2!=c ){
+ c2 = *(z++);
+ if( c2==0 ) return 0;
+ }
+ if( strglob(zGlob,z) ) return 1;
+ }
+ return 0;
+ }else if( c=='?' ){
+ if( (*(z++))==0 ) return 0;
+ }else if( c=='[' ){
+ int prior_c = 0;
+ seen = 0;
+ invert = 0;
+ c = *(z++);
+ if( c==0 ) return 0;
+ c2 = *(zGlob++);
+ if( c2=='^' ){
+ invert = 1;
+ c2 = *(zGlob++);
+ }
+ if( c2==']' ){
+ if( c==']' ) seen = 1;
+ c2 = *(zGlob++);
+ }
+ while( c2 && c2!=']' ){
+ if( c2=='-' && zGlob[0]!=']' && zGlob[0]!=0 && prior_c>0 ){
+ c2 = *(zGlob++);
+ if( c>=prior_c && c<=c2 ) seen = 1;
+ prior_c = 0;
+ }else{
+ if( c==c2 ){
+ seen = 1;
+ }
+ prior_c = c2;
+ }
+ c2 = *(zGlob++);
+ }
+ if( c2==0 || (seen ^ invert)==0 ) return 0;
+ }else if( c=='#' ){
+ if( (z[0]=='-' || z[0]=='+') && isdigit(z[1]) ) z++;
+ if( !isdigit(z[0]) ) return 0;
+ z++;
+ while( isdigit(z[0]) ){ z++; }
+ }else{
+ if( c!=(*(z++)) ) return 0;
+ }
+ }
+ return *z==0;
+}
+
+/*
+** Close output stream pOut if it is not stdout or stderr
+*/
+static void maybeClose(FILE *pOut){
+ if( pOut!=stdout && pOut!=stderr ) fclose(pOut);
+}
+
+/*
+** Print an error message
+*/
+static void errorMessage(const char *zFormat, ...){
+ va_list ap;
+ char *zMsg;
+ char zPrefix[30];
+ va_start(ap, zFormat);
+ zMsg = sqlite3_vmprintf(zFormat, ap);
+ va_end(ap);
+ sqlite3_snprintf(sizeof(zPrefix), zPrefix, "%s:ERROR: ", g.zName);
+ if( g.pLog ){
+ printWithPrefix(g.pLog, zPrefix, zMsg);
+ fflush(g.pLog);
+ }
+ if( g.pErrLog && safe_strcmp(g.zErrLog,g.zLog) ){
+ printWithPrefix(g.pErrLog, zPrefix, zMsg);
+ fflush(g.pErrLog);
+ }
+ sqlite3_free(zMsg);
+ g.nError++;
+}
+
+/* Forward declaration */
+static int trySql(const char*, ...);
+
+/*
+** Print an error message and then quit.
+*/
+static void fatalError(const char *zFormat, ...){
+ va_list ap;
+ char *zMsg;
+ char zPrefix[30];
+ va_start(ap, zFormat);
+ zMsg = sqlite3_vmprintf(zFormat, ap);
+ va_end(ap);
+ sqlite3_snprintf(sizeof(zPrefix), zPrefix, "%s:FATAL: ", g.zName);
+ if( g.pLog ){
+ printWithPrefix(g.pLog, zPrefix, zMsg);
+ fflush(g.pLog);
+ maybeClose(g.pLog);
+ }
+ if( g.pErrLog && safe_strcmp(g.zErrLog,g.zLog) ){
+ printWithPrefix(g.pErrLog, zPrefix, zMsg);
+ fflush(g.pErrLog);
+ maybeClose(g.pErrLog);
+ }
+ sqlite3_free(zMsg);
+ if( g.db ){
+ int nTry = 0;
+ g.iTimeout = 0;
+ while( trySql("UPDATE client SET wantHalt=1;")==SQLITE_BUSY
+ && (nTry++)<100 ){
+ sqlite3_sleep(10);
+ }
+ }
+ sqlite3_close(g.db);
+ exit(1);
+}
+
+
+/*
+** Print a log message
+*/
+static void logMessage(const char *zFormat, ...){
+ va_list ap;
+ char *zMsg;
+ char zPrefix[30];
+ va_start(ap, zFormat);
+ zMsg = sqlite3_vmprintf(zFormat, ap);
+ va_end(ap);
+ sqlite3_snprintf(sizeof(zPrefix), zPrefix, "%s: ", g.zName);
+ if( g.pLog ){
+ printWithPrefix(g.pLog, zPrefix, zMsg);
+ fflush(g.pLog);
+ }
+ sqlite3_free(zMsg);
+}
+
+/*
+** Return the length of a string omitting trailing whitespace
+*/
+static int clipLength(const char *z){
+ int n = (int)strlen(z);
+ while( n>0 && isspace(z[n-1]) ){ n--; }
+ return n;
+}
+
+/*
+** Auxiliary SQL function to return the name of the VFS
+*/
+static void vfsNameFunc(
+ sqlite3_context *context,
+ int argc,
+ sqlite3_value **argv
+){
+ sqlite3 *db = sqlite3_context_db_handle(context);
+ char *zVfs = 0;
+ UNUSED_PARAMETER(argc);
+ UNUSED_PARAMETER(argv);
+ sqlite3_file_control(db, "main", SQLITE_FCNTL_VFSNAME, &zVfs);
+ if( zVfs ){
+ sqlite3_result_text(context, zVfs, -1, sqlite3_free);
+ }
+}
+
+/*
+** Busy handler with a g.iTimeout-millisecond timeout
+*/
+static int busyHandler(void *pCD, int count){
+ UNUSED_PARAMETER(pCD);
+ if( count*10>g.iTimeout ){
+ if( g.iTimeout>0 ) errorMessage("timeout after %dms", g.iTimeout);
+ return 0;
+ }
+ sqlite3_sleep(10);
+ return 1;
+}
+
+/*
+** SQL Trace callback
+*/
+static void sqlTraceCallback(void *NotUsed1, const char *zSql){
+ UNUSED_PARAMETER(NotUsed1);
+ logMessage("[%.*s]", clipLength(zSql), zSql);
+}
+
+/*
+** SQL error log callback
+*/
+static void sqlErrorCallback(void *pArg, int iErrCode, const char *zMsg){
+ UNUSED_PARAMETER(pArg);
+ if( iErrCode==SQLITE_ERROR && g.bIgnoreSqlErrors ) return;
+ if( (iErrCode&0xff)==SQLITE_SCHEMA && g.iTrace<3 ) return;
+ if( g.iTimeout==0 && (iErrCode&0xff)==SQLITE_BUSY && g.iTrace<3 ) return;
+ if( (iErrCode&0xff)==SQLITE_NOTICE ){
+ logMessage("(info) %s", zMsg);
+ }else{
+ errorMessage("(errcode=%d) %s", iErrCode, zMsg);
+ }
+}
+
+/*
+** Prepare an SQL statement. Issue a fatal error if unable.
+*/
+static sqlite3_stmt *prepareSql(const char *zFormat, ...){
+ va_list ap;
+ char *zSql;
+ int rc;
+ sqlite3_stmt *pStmt = 0;
+ va_start(ap, zFormat);
+ zSql = sqlite3_vmprintf(zFormat, ap);
+ va_end(ap);
+ rc = sqlite3_prepare_v2(g.db, zSql, -1, &pStmt, 0);
+ if( rc!=SQLITE_OK ){
+ sqlite3_finalize(pStmt);
+ fatalError("%s\n%s\n", sqlite3_errmsg(g.db), zSql);
+ }
+ sqlite3_free(zSql);
+ return pStmt;
+}
+
+/*
+** Run arbitrary SQL. Issue a fatal error on failure.
+*/
+static void runSql(const char *zFormat, ...){
+ va_list ap;
+ char *zSql;
+ int rc;
+ va_start(ap, zFormat);
+ zSql = sqlite3_vmprintf(zFormat, ap);
+ va_end(ap);
+ rc = sqlite3_exec(g.db, zSql, 0, 0, 0);
+ if( rc!=SQLITE_OK ){
+ fatalError("%s\n%s\n", sqlite3_errmsg(g.db), zSql);
+ }
+ sqlite3_free(zSql);
+}
+
+/*
+** Try to run arbitrary SQL. Return success code.
+*/
+static int trySql(const char *zFormat, ...){
+ va_list ap;
+ char *zSql;
+ int rc;
+ va_start(ap, zFormat);
+ zSql = sqlite3_vmprintf(zFormat, ap);
+ va_end(ap);
+ rc = sqlite3_exec(g.db, zSql, 0, 0, 0);
+ sqlite3_free(zSql);
+ return rc;
+}
+
+/* Structure for holding an arbitrary length string
+*/
+typedef struct String String;
+struct String {
+ char *z; /* the string */
+ int n; /* Slots of z[] used */
+ int nAlloc; /* Slots of z[] allocated */
+};
+
+/* Free a string */
+static void stringFree(String *p){
+ if( p->z ) sqlite3_free(p->z);
+ memset(p, 0, sizeof(*p));
+}
+
+/* Append n bytes of text to a string. If n<0 append the entire string. */
+static void stringAppend(String *p, const char *z, int n){
+ if( n<0 ) n = (int)strlen(z);
+ if( p->n+n>=p->nAlloc ){
+ int nAlloc = p->nAlloc*2 + n + 100;
+ char *z = sqlite3_realloc(p->z, nAlloc);
+ if( z==0 ) fatalError("out of memory");
+ p->z = z;
+ p->nAlloc = nAlloc;
+ }
+ memcpy(p->z+p->n, z, n);
+ p->n += n;
+ p->z[p->n] = 0;
+}
+
+/* Reset a string to an empty string */
+static void stringReset(String *p){
+ if( p->z==0 ) stringAppend(p, " ", 1);
+ p->n = 0;
+ p->z[0] = 0;
+}
+
+/* Append a new token onto the end of the string */
+static void stringAppendTerm(String *p, const char *z){
+ int i;
+ if( p->n ) stringAppend(p, " ", 1);
+ if( z==0 ){
+ stringAppend(p, "nil", 3);
+ return;
+ }
+ for(i=0; z[i] && !isspace(z[i]); i++){}
+ if( i>0 && z[i]==0 ){
+ stringAppend(p, z, i);
+ return;
+ }
+ stringAppend(p, "'", 1);
+ while( z[0] ){
+ for(i=0; z[i] && z[i]!='\''; i++){}
+ if( z[i] ){
+ stringAppend(p, z, i+1);
+ stringAppend(p, "'", 1);
+ z += i+1;
+ }else{
+ stringAppend(p, z, i);
+ break;
+ }
+ }
+ stringAppend(p, "'", 1);
+}
+
+/*
+** Callback function for evalSql()
+*/
+static int evalCallback(void *pCData, int argc, char **argv, char **azCol){
+ String *p = (String*)pCData;
+ int i;
+ UNUSED_PARAMETER(azCol);
+ for(i=0; i<argc; i++) stringAppendTerm(p, argv[i]);
+ return 0;
+}
+
+/*
+** Run arbitrary SQL and record the results in an output string
+** given by the first parameter.
+*/
+static int evalSql(String *p, const char *zFormat, ...){
+ va_list ap;
+ char *zSql;
+ int rc;
+ char *zErrMsg = 0;
+ va_start(ap, zFormat);
+ zSql = sqlite3_vmprintf(zFormat, ap);
+ va_end(ap);
+ assert( g.iTimeout>0 );
+ rc = sqlite3_exec(g.db, zSql, evalCallback, p, &zErrMsg);
+ sqlite3_free(zSql);
+ if( rc ){
+ char zErr[30];
+ sqlite3_snprintf(sizeof(zErr), zErr, "error(%d)", rc);
+ stringAppendTerm(p, zErr);
+ if( zErrMsg ){
+ stringAppendTerm(p, zErrMsg);
+ sqlite3_free(zErrMsg);
+ }
+ }
+ return rc;
+}
+
+/*
+** Auxiliary SQL function to recursively evaluate SQL.
+*/
+static void evalFunc(
+ sqlite3_context *context,
+ int argc,
+ sqlite3_value **argv
+){
+ sqlite3 *db = sqlite3_context_db_handle(context);
+ const char *zSql = (const char*)sqlite3_value_text(argv[0]);
+ String res;
+ char *zErrMsg = 0;
+ int rc;
+ UNUSED_PARAMETER(argc);
+ memset(&res, 0, sizeof(res));
+ rc = sqlite3_exec(db, zSql, evalCallback, &res, &zErrMsg);
+ if( zErrMsg ){
+ sqlite3_result_error(context, zErrMsg, -1);
+ sqlite3_free(zErrMsg);
+ }else if( rc ){
+ sqlite3_result_error_code(context, rc);
+ }else{
+ sqlite3_result_text(context, res.z, -1, SQLITE_TRANSIENT);
+ }
+ stringFree(&res);
+}
+
+/*
+** Look up the next task for client iClient in the database.
+** Return the task script and the task number and mark that
+** task as being under way.
+*/
+static int startScript(
+ int iClient, /* The client number */
+ char **pzScript, /* Write task script here */
+ int *pTaskId, /* Write task number here */
+ char **pzTaskName /* Name of the task */
+){
+ sqlite3_stmt *pStmt = 0;
+ int taskId;
+ int rc;
+ int totalTime = 0;
+
+ *pzScript = 0;
+ g.iTimeout = 0;
+ while(1){
+ rc = trySql("BEGIN IMMEDIATE");
+ if( rc==SQLITE_BUSY ){
+ sqlite3_sleep(10);
+ totalTime += 10;
+ continue;
+ }
+ if( rc!=SQLITE_OK ){
+ fatalError("in startScript: %s", sqlite3_errmsg(g.db));
+ }
+ if( g.nError || g.nTest ){
+ runSql("UPDATE counters SET nError=nError+%d, nTest=nTest+%d",
+ g.nError, g.nTest);
+ g.nError = 0;
+ g.nTest = 0;
+ }
+ pStmt = prepareSql("SELECT 1 FROM client WHERE id=%d AND wantHalt",iClient);
+ rc = sqlite3_step(pStmt);
+ sqlite3_finalize(pStmt);
+ if( rc==SQLITE_ROW ){
+ runSql("DELETE FROM client WHERE id=%d", iClient);
+ g.iTimeout = DEFAULT_TIMEOUT;
+ runSql("COMMIT TRANSACTION;");
+ return SQLITE_DONE;
+ }
+ pStmt = prepareSql(
+ "SELECT script, id, name FROM task"
+ " WHERE client=%d AND starttime IS NULL"
+ " ORDER BY id LIMIT 1", iClient);
+ rc = sqlite3_step(pStmt);
+ if( rc==SQLITE_ROW ){
+ int n = sqlite3_column_bytes(pStmt, 0);
+ *pzScript = sqlite3_malloc(n+1);
+ strcpy(*pzScript, (const char*)sqlite3_column_text(pStmt, 0));
+ *pTaskId = taskId = sqlite3_column_int(pStmt, 1);
+ *pzTaskName = sqlite3_mprintf("%s", sqlite3_column_text(pStmt, 2));
+ sqlite3_finalize(pStmt);
+ runSql("UPDATE task"
+ " SET starttime=strftime('%%Y-%%m-%%d %%H:%%M:%%f','now')"
+ " WHERE id=%d;", taskId);
+ g.iTimeout = DEFAULT_TIMEOUT;
+ runSql("COMMIT TRANSACTION;");
+ return SQLITE_OK;
+ }
+ sqlite3_finalize(pStmt);
+ if( rc==SQLITE_DONE ){
+ if( totalTime>30000 ){
+ errorMessage("Waited over 30 seconds with no work. Giving up.");
+ runSql("DELETE FROM client WHERE id=%d; COMMIT;", iClient);
+ sqlite3_close(g.db);
+ exit(1);
+ }
+ while( trySql("COMMIT")==SQLITE_BUSY ){
+ sqlite3_sleep(10);
+ totalTime += 10;
+ }
+ sqlite3_sleep(100);
+ totalTime += 100;
+ continue;
+ }
+ fatalError("%s", sqlite3_errmsg(g.db));
+ }
+ g.iTimeout = DEFAULT_TIMEOUT;
+}
+
+/*
+** Mark a script as having finished. Remove the CLIENT table entry
+** if bShutdown is true.
+*/
+static int finishScript(int iClient, int taskId, int bShutdown){
+ runSql("UPDATE task"
+ " SET endtime=strftime('%%Y-%%m-%%d %%H:%%M:%%f','now')"
+ " WHERE id=%d;", taskId);
+ if( bShutdown ){
+ runSql("DELETE FROM client WHERE id=%d", iClient);
+ }
+ return SQLITE_OK;
+}
+
+/*
+** Start up a client process for iClient, if it is not already
+** running. If the client is already running, then this routine
+** is a no-op.
+*/
+static void startClient(int iClient){
+ runSql("INSERT OR IGNORE INTO client VALUES(%d,0)", iClient);
+ if( sqlite3_changes(g.db) ){
+ char *zSys;
+ int rc;
+ zSys = sqlite3_mprintf("%s \"%s\" --client %d --trace %d",
+ g.argv0, g.zDbFile, iClient, g.iTrace);
+ if( g.bSqlTrace ){
+ zSys = sqlite3_mprintf("%z --sqltrace", zSys);
+ }
+ if( g.bSync ){
+ zSys = sqlite3_mprintf("%z --sync", zSys);
+ }
+ if( g.zVfs ){
+ zSys = sqlite3_mprintf("%z --vfs \"%s\"", zSys, g.zVfs);
+ }
+ if( g.iTrace>=2 ) logMessage("system('%q')", zSys);
+#if !defined(_WIN32)
+ zSys = sqlite3_mprintf("%z &", zSys);
+ rc = system(zSys);
+ if( rc ) errorMessage("system() fails with error code %d", rc);
+#else
+ {
+ STARTUPINFOA startupInfo;
+ PROCESS_INFORMATION processInfo;
+ memset(&startupInfo, 0, sizeof(startupInfo));
+ startupInfo.cb = sizeof(startupInfo);
+ memset(&processInfo, 0, sizeof(processInfo));
+ rc = CreateProcessA(NULL, zSys, NULL, NULL, FALSE, 0, NULL, NULL,
+ &startupInfo, &processInfo);
+ if( rc ){
+ CloseHandle(processInfo.hThread);
+ CloseHandle(processInfo.hProcess);
+ }else{
+ errorMessage("CreateProcessA() fails with error code %lu",
+ GetLastError());
+ }
+ }
+#endif
+ sqlite3_free(zSys);
+ }
+}
+
+/*
+** Read the entire content of a file into memory
+*/
+static char *readFile(const char *zFilename){
+ FILE *in = fopen(zFilename, "rb");
+ long sz;
+ char *z;
+ if( in==0 ){
+ fatalError("cannot open \"%s\" for reading", zFilename);
+ }
+ fseek(in, 0, SEEK_END);
+ sz = ftell(in);
+ rewind(in);
+ z = sqlite3_malloc( sz+1 );
+ sz = (long)fread(z, 1, sz, in);
+ z[sz] = 0;
+ fclose(in);
+ return z;
+}
+
+/*
+** Return the length of the next token.
+*/
+static int tokenLength(const char *z, int *pnLine){
+ int n = 0;
+ if( isspace(z[0]) || (z[0]=='/' && z[1]=='*') ){
+ int inC = 0;
+ int c;
+ if( z[0]=='/' ){
+ inC = 1;
+ n = 2;
+ }
+ while( (c = z[n++])!=0 ){
+ if( c=='\n' ) (*pnLine)++;
+ if( isspace(c) ) continue;
+ if( inC && c=='*' && z[n]=='/' ){
+ n++;
+ inC = 0;
+ }else if( !inC && c=='/' && z[n]=='*' ){
+ n++;
+ inC = 1;
+ }else if( !inC ){
+ break;
+ }
+ }
+ n--;
+ }else if( z[0]=='-' && z[1]=='-' ){
+ for(n=2; z[n] && z[n]!='\n'; n++){}
+ if( z[n] ){ (*pnLine)++; n++; }
+ }else if( z[0]=='"' || z[0]=='\'' ){
+ int delim = z[0];
+ for(n=1; z[n]; n++){
+ if( z[n]=='\n' ) (*pnLine)++;
+ if( z[n]==delim ){
+ n++;
+ if( z[n+1]!=delim ) break;
+ }
+ }
+ }else{
+ int c;
+ for(n=1; (c = z[n])!=0 && !isspace(c) && c!='"' && c!='\'' && c!=';'; n++){}
+ }
+ return n;
+}
+
+/*
+** Copy a single token into a string buffer.
+*/
+static int extractToken(const char *zIn, int nIn, char *zOut, int nOut){
+ int i;
+ if( nIn<=0 ){
+ zOut[0] = 0;
+ return 0;
+ }
+ for(i=0; i<nIn && i<nOut-1 && !isspace(zIn[i]); i++){ zOut[i] = zIn[i]; }
+ zOut[i] = 0;
+ return i;
+}
+
+/*
+** Find the number of characters up to the start of the next "--end" token.
+*/
+static int findEnd(const char *z, int *pnLine){
+ int n = 0;
+ while( z[n] && (strncmp(z+n,"--end",5) || !isspace(z[n+5])) ){
+ n += tokenLength(z+n, pnLine);
+ }
+ return n;
+}
+
+/*
+** Find the number of characters up to the first character past the
+** of the next "--endif" or "--else" token. Nested --if commands are
+** also skipped.
+*/
+static int findEndif(const char *z, int stopAtElse, int *pnLine){
+ int n = 0;
+ while( z[n] ){
+ int len = tokenLength(z+n, pnLine);
+ if( (strncmp(z+n,"--endif",7)==0 && isspace(z[n+7]))
+ || (stopAtElse && strncmp(z+n,"--else",6)==0 && isspace(z[n+6]))
+ ){
+ return n+len;
+ }
+ if( strncmp(z+n,"--if",4)==0 && isspace(z[n+4]) ){
+ int skip = findEndif(z+n+len, 0, pnLine);
+ n += skip + len;
+ }else{
+ n += len;
+ }
+ }
+ return n;
+}
+
+/*
+** Wait for a client process to complete all its tasks
+*/
+static void waitForClient(int iClient, int iTimeout, char *zErrPrefix){
+ sqlite3_stmt *pStmt;
+ int rc;
+ if( iClient>0 ){
+ pStmt = prepareSql(
+ "SELECT 1 FROM task"
+ " WHERE client=%d"
+ " AND client IN (SELECT id FROM client)"
+ " AND endtime IS NULL",
+ iClient);
+ }else{
+ pStmt = prepareSql(
+ "SELECT 1 FROM task"
+ " WHERE client IN (SELECT id FROM client)"
+ " AND endtime IS NULL");
+ }
+ g.iTimeout = 0;
+ while( ((rc = sqlite3_step(pStmt))==SQLITE_BUSY || rc==SQLITE_ROW)
+ && iTimeout>0
+ ){
+ sqlite3_reset(pStmt);
+ sqlite3_sleep(50);
+ iTimeout -= 50;
+ }
+ sqlite3_finalize(pStmt);
+ g.iTimeout = DEFAULT_TIMEOUT;
+ if( rc!=SQLITE_DONE ){
+ if( zErrPrefix==0 ) zErrPrefix = "";
+ if( iClient>0 ){
+ errorMessage("%stimeout waiting for client %d", zErrPrefix, iClient);
+ }else{
+ errorMessage("%stimeout waiting for all clients", zErrPrefix);
+ }
+ }
+}
+
+/* Return a pointer to the tail of a filename
+*/
+static char *filenameTail(char *z){
+ int i, j;
+ for(i=j=0; z[i]; i++) if( z[i]=='/' ) j = i+1;
+ return z+j;
+}
+
+/*
+** Interpret zArg as a boolean value. Return either 0 or 1.
+*/
+static int booleanValue(char *zArg){
+ int i;
+ if( zArg==0 ) return 0;
+ for(i=0; zArg[i]>='0' && zArg[i]<='9'; i++){}
+ if( i>0 && zArg[i]==0 ) return atoi(zArg);
+ if( sqlite3_stricmp(zArg, "on")==0 || sqlite3_stricmp(zArg,"yes")==0 ){
+ return 1;
+ }
+ if( sqlite3_stricmp(zArg, "off")==0 || sqlite3_stricmp(zArg,"no")==0 ){
+ return 0;
+ }
+ errorMessage("unknown boolean: [%s]", zArg);
+ return 0;
+}
+
+
+/* This routine exists as a convenient place to set a debugger
+** breakpoint.
+*/
+static void test_breakpoint(void){ static volatile int cnt = 0; cnt++; }
+
+/* Maximum number of arguments to a --command */
+#define MX_ARG 2
+
+/*
+** Run a script.
+*/
+static void runScript(
+ int iClient, /* The client number, or 0 for the master */
+ int taskId, /* The task ID for clients. 0 for master */
+ char *zScript, /* Text of the script */
+ char *zFilename /* File from which script was read. */
+){
+ int lineno = 1;
+ int prevLine = 1;
+ int ii = 0;
+ int iBegin = 0;
+ int n, c, j;
+ int len;
+ int nArg;
+ String sResult;
+ char zCmd[30];
+ char zError[1000];
+ char azArg[MX_ARG][100];
+
+ memset(&sResult, 0, sizeof(sResult));
+ stringReset(&sResult);
+ while( (c = zScript[ii])!=0 ){
+ prevLine = lineno;
+ len = tokenLength(zScript+ii, &lineno);
+ if( isspace(c) || (c=='/' && zScript[ii+1]=='*') ){
+ ii += len;
+ continue;
+ }
+ if( c!='-' || zScript[ii+1]!='-' || !isalpha(zScript[ii+2]) ){
+ ii += len;
+ continue;
+ }
+
+ /* Run any prior SQL before processing the new --command */
+ if( ii>iBegin ){
+ char *zSql = sqlite3_mprintf("%.*s", ii-iBegin, zScript+iBegin);
+ evalSql(&sResult, zSql);
+ sqlite3_free(zSql);
+ iBegin = ii + len;
+ }
+
+ /* Parse the --command */
+ if( g.iTrace>=2 ) logMessage("%.*s", len, zScript+ii);
+ n = extractToken(zScript+ii+2, len-2, zCmd, sizeof(zCmd));
+ for(nArg=0; n<len-2 && nArg<MX_ARG; nArg++){
+ while( n<len-2 && isspace(zScript[ii+2+n]) ){ n++; }
+ if( n>=len-2 ) break;
+ n += extractToken(zScript+ii+2+n, len-2-n,
+ azArg[nArg], sizeof(azArg[nArg]));
+ }
+ for(j=nArg; j<MX_ARG; j++) azArg[j++][0] = 0;
+
+ /*
+ ** --sleep N
+ **
+ ** Pause for N milliseconds
+ */
+ if( strcmp(zCmd, "sleep")==0 ){
+ sqlite3_sleep(atoi(azArg[0]));
+ }else
+
+ /*
+ ** --exit N
+ **
+ ** Exit this process. If N>0 then exit without shutting down
+ ** SQLite. (In other words, simulate a crash.)
+ */
+ if( strcmp(zCmd, "exit")==0 ){
+ int rc = atoi(azArg[0]);
+ finishScript(iClient, taskId, 1);
+ if( rc==0 ) sqlite3_close(g.db);
+ exit(rc);
+ }else
+
+ /*
+ ** --testcase NAME
+ **
+ ** Begin a new test case. Announce in the log that the test case
+ ** has begun.
+ */
+ if( strcmp(zCmd, "testcase")==0 ){
+ if( g.iTrace==1 ) logMessage("%.*s", len - 1, zScript+ii);
+ stringReset(&sResult);
+ }else
+
+ /*
+ ** --finish
+ **
+ ** Mark the current task as having finished, even if it is not.
+ ** This can be used in conjunction with --exit to simulate a crash.
+ */
+ if( strcmp(zCmd, "finish")==0 && iClient>0 ){
+ finishScript(iClient, taskId, 1);
+ }else
+
+ /*
+ ** --reset
+ **
+ ** Reset accumulated results back to an empty string
+ */
+ if( strcmp(zCmd, "reset")==0 ){
+ stringReset(&sResult);
+ }else
+
+ /*
+ ** --match ANSWER...
+ **
+ ** Check to see if output matches ANSWER. Report an error if not.
+ */
+ if( strcmp(zCmd, "match")==0 ){
+ int jj;
+ char *zAns = zScript+ii;
+ for(jj=7; jj<len-1 && isspace(zAns[jj]); jj++){}
+ zAns += jj;
+ if( len-jj-1!=sResult.n || strncmp(sResult.z, zAns, len-jj-1) ){
+ errorMessage("line %d of %s:\nExpected [%.*s]\n Got [%s]",
+ prevLine, zFilename, len-jj-1, zAns, sResult.z);
+ }
+ g.nTest++;
+ stringReset(&sResult);
+ }else
+
+ /*
+ ** --glob ANSWER...
+ ** --notglob ANSWER....
+ **
+ ** Check to see if output does or does not match the glob pattern
+ ** ANSWER.
+ */
+ if( strcmp(zCmd, "glob")==0 || strcmp(zCmd, "notglob")==0 ){
+ int jj;
+ char *zAns = zScript+ii;
+ char *zCopy;
+ int isGlob = (zCmd[0]=='g');
+ for(jj=9-3*isGlob; jj<len-1 && isspace(zAns[jj]); jj++){}
+ zAns += jj;
+ zCopy = sqlite3_mprintf("%.*s", len-jj-1, zAns);
+ if( (sqlite3_strglob(zCopy, sResult.z)==0)^isGlob ){
+ errorMessage("line %d of %s:\nExpected [%s]\n Got [%s]",
+ prevLine, zFilename, zCopy, sResult.z);
+ }
+ sqlite3_free(zCopy);
+ g.nTest++;
+ stringReset(&sResult);
+ }else
+
+ /*
+ ** --output
+ **
+ ** Output the result of the previous SQL.
+ */
+ if( strcmp(zCmd, "output")==0 ){
+ logMessage("%s", sResult.z);
+ }else
+
+ /*
+ ** --source FILENAME
+ **
+ ** Run a subscript from a separate file.
+ */
+ if( strcmp(zCmd, "source")==0 ){
+ char *zNewFile, *zNewScript;
+ char *zToDel = 0;
+ zNewFile = azArg[0];
+ if( zNewFile[0]!='/' ){
+ int k;
+ for(k=(int)strlen(zFilename)-1; k>=0 && zFilename[k]!='/'; k--){}
+ if( k>0 ){
+ zNewFile = zToDel = sqlite3_mprintf("%.*s/%s", k,zFilename,zNewFile);
+ }
+ }
+ zNewScript = readFile(zNewFile);
+ if( g.iTrace ) logMessage("begin script [%s]\n", zNewFile);
+ runScript(0, 0, zNewScript, zNewFile);
+ sqlite3_free(zNewScript);
+ if( g.iTrace ) logMessage("end script [%s]\n", zNewFile);
+ sqlite3_free(zToDel);
+ }else
+
+ /*
+ ** --print MESSAGE....
+ **
+ ** Output the remainder of the line to the log file
+ */
+ if( strcmp(zCmd, "print")==0 ){
+ int jj;
+ for(jj=7; jj<len && isspace(zScript[ii+jj]); jj++){}
+ logMessage("%.*s", len-jj, zScript+ii+jj);
+ }else
+
+ /*
+ ** --if EXPR
+ **
+ ** Skip forward to the next matching --endif or --else if EXPR is false.
+ */
+ if( strcmp(zCmd, "if")==0 ){
+ int jj, rc;
+ sqlite3_stmt *pStmt;
+ for(jj=4; jj<len && isspace(zScript[ii+jj]); jj++){}
+ pStmt = prepareSql("SELECT %.*s", len-jj, zScript+ii+jj);
+ rc = sqlite3_step(pStmt);
+ if( rc!=SQLITE_ROW || sqlite3_column_int(pStmt, 0)==0 ){
+ ii += findEndif(zScript+ii+len, 1, &lineno);
+ }
+ sqlite3_finalize(pStmt);
+ }else
+
+ /*
+ ** --else
+ **
+ ** This command can only be encountered if currently inside an --if that
+ ** is true. Skip forward to the next matching --endif.
+ */
+ if( strcmp(zCmd, "else")==0 ){
+ ii += findEndif(zScript+ii+len, 0, &lineno);
+ }else
+
+ /*
+ ** --endif
+ **
+ ** This command can only be encountered if currently inside an --if that
+ ** is true or an --else of a false if. This is a no-op.
+ */
+ if( strcmp(zCmd, "endif")==0 ){
+ /* no-op */
+ }else
+
+ /*
+ ** --start CLIENT
+ **
+ ** Start up the given client.
+ */
+ if( strcmp(zCmd, "start")==0 && iClient==0 ){
+ int iNewClient = atoi(azArg[0]);
+ if( iNewClient>0 ){
+ startClient(iNewClient);
+ }
+ }else
+
+ /*
+ ** --wait CLIENT TIMEOUT
+ **
+ ** Wait until all tasks complete for the given client. If CLIENT is
+ ** "all" then wait for all clients to complete. Wait no longer than
+ ** TIMEOUT milliseconds (default 10,000)
+ */
+ if( strcmp(zCmd, "wait")==0 && iClient==0 ){
+ int iTimeout = nArg>=2 ? atoi(azArg[1]) : 10000;
+ sqlite3_snprintf(sizeof(zError),zError,"line %d of %s\n",
+ prevLine, zFilename);
+ waitForClient(atoi(azArg[0]), iTimeout, zError);
+ }else
+
+ /*
+ ** --task CLIENT
+ ** <task-content-here>
+ ** --end
+ **
+ ** Assign work to a client. Start the client if it is not running
+ ** already.
+ */
+ if( strcmp(zCmd, "task")==0 && iClient==0 ){
+ int iTarget = atoi(azArg[0]);
+ int iEnd;
+ char *zTask;
+ char *zTName;
+ iEnd = findEnd(zScript+ii+len, &lineno);
+ if( iTarget<0 ){
+ errorMessage("line %d of %s: bad client number: %d",
+ prevLine, zFilename, iTarget);
+ }else{
+ zTask = sqlite3_mprintf("%.*s", iEnd, zScript+ii+len);
+ if( nArg>1 ){
+ zTName = sqlite3_mprintf("%s", azArg[1]);
+ }else{
+ zTName = sqlite3_mprintf("%s:%d", filenameTail(zFilename), prevLine);
+ }
+ startClient(iTarget);
+ runSql("INSERT INTO task(client,script,name)"
+ " VALUES(%d,'%q',%Q)", iTarget, zTask, zTName);
+ sqlite3_free(zTask);
+ sqlite3_free(zTName);
+ }
+ iEnd += tokenLength(zScript+ii+len+iEnd, &lineno);
+ len += iEnd;
+ iBegin = ii+len;
+ }else
+
+ /*
+ ** --breakpoint
+ **
+ ** This command calls "test_breakpoint()" which is a routine provided
+ ** as a convenient place to set a debugger breakpoint.
+ */
+ if( strcmp(zCmd, "breakpoint")==0 ){
+ test_breakpoint();
+ }else
+
+ /*
+ ** --show-sql-errors BOOLEAN
+ **
+ ** Turn display of SQL errors on and off.
+ */
+ if( strcmp(zCmd, "show-sql-errors")==0 ){
+ g.bIgnoreSqlErrors = nArg>=1 ? !booleanValue(azArg[0]) : 1;
+ }else
+
+
+ /* error */{
+ errorMessage("line %d of %s: unknown command --%s",
+ prevLine, zFilename, zCmd);
+ }
+ ii += len;
+ }
+ if( iBegin<ii ){
+ char *zSql = sqlite3_mprintf("%.*s", ii-iBegin, zScript+iBegin);
+ runSql(zSql);
+ sqlite3_free(zSql);
+ }
+ stringFree(&sResult);
+}
+
+/*
+** Look for a command-line option. If present, return a pointer.
+** Return NULL if missing.
+**
+** hasArg==0 means the option is a flag. It is either present or not.
+** hasArg==1 means the option has an argument. Return a pointer to the
+** argument.
+*/
+static char *findOption(
+ char **azArg,
+ int *pnArg,
+ const char *zOption,
+ int hasArg
+){
+ int i, j;
+ char *zReturn = 0;
+ int nArg = *pnArg;
+
+ assert( hasArg==0 || hasArg==1 );
+ for(i=0; i<nArg; i++){
+ const char *z;
+ if( i+hasArg >= nArg ) break;
+ z = azArg[i];
+ if( z[0]!='-' ) continue;
+ z++;
+ if( z[0]=='-' ){
+ if( z[1]==0 ) break;
+ z++;
+ }
+ if( strcmp(z,zOption)==0 ){
+ if( hasArg && i==nArg-1 ){
+ fatalError("command-line option \"--%s\" requires an argument", z);
+ }
+ if( hasArg ){
+ zReturn = azArg[i+1];
+ }else{
+ zReturn = azArg[i];
+ }
+ j = i+1+(hasArg!=0);
+ while( j<nArg ) azArg[i++] = azArg[j++];
+ *pnArg = i;
+ return zReturn;
+ }
+ }
+ return zReturn;
+}
+
+/* Print a usage message for the program and exit */
+static void usage(const char *argv0){
+ int i;
+ const char *zTail = argv0;
+ for(i=0; argv0[i]; i++){
+ if( argv0[i]=='/' ) zTail = argv0+i+1;
+ }
+ fprintf(stderr,"Usage: %s DATABASE ?OPTIONS? ?SCRIPT?\n", zTail);
+ exit(1);
+}
+
+/* Report on unrecognized arguments */
+static void unrecognizedArguments(
+ const char *argv0,
+ int nArg,
+ char **azArg
+){
+ int i;
+ fprintf(stderr,"%s: unrecognized arguments:", argv0);
+ for(i=0; i<nArg; i++){
+ fprintf(stderr," %s", azArg[i]);
+ }
+ fprintf(stderr,"\n");
+ exit(1);
+}
+
+int main(int argc, char **argv){
+ const char *zClient;
+ int iClient;
+ int n, i;
+ int openFlags = SQLITE_OPEN_READWRITE;
+ int rc;
+ char *zScript;
+ int taskId;
+ const char *zTrace;
+ const char *zCOption;
+
+ g.argv0 = argv[0];
+ g.iTrace = 1;
+ if( argc<2 ) usage(argv[0]);
+ g.zDbFile = argv[1];
+ if( strglob("*.test", g.zDbFile) ) usage(argv[0]);
+ if( strcmp(sqlite3_sourceid(), SQLITE_SOURCE_ID)!=0 ){
+ fprintf(stderr, "SQLite library and header mismatch\n"
+ "Library: %s\n"
+ "Header: %s\n",
+ sqlite3_sourceid(), SQLITE_SOURCE_ID);
+ exit(1);
+ }
+ n = argc-2;
+ sqlite3_snprintf(sizeof(g.zName), g.zName, "%05d.mptest", GETPID());
+ g.zVfs = findOption(argv+2, &n, "vfs", 1);
+ zClient = findOption(argv+2, &n, "client", 1);
+ g.zErrLog = findOption(argv+2, &n, "errlog", 1);
+ g.zLog = findOption(argv+2, &n, "log", 1);
+ zTrace = findOption(argv+2, &n, "trace", 1);
+ if( zTrace ) g.iTrace = atoi(zTrace);
+ if( findOption(argv+2, &n, "quiet", 0)!=0 ) g.iTrace = 0;
+ g.bSqlTrace = findOption(argv+2, &n, "sqltrace", 0)!=0;
+ g.bSync = findOption(argv+2, &n, "sync", 0)!=0;
+ if( g.zErrLog ){
+ g.pErrLog = fopen(g.zErrLog, "a");
+ }else{
+ g.pErrLog = stderr;
+ }
+ if( g.zLog ){
+ g.pLog = fopen(g.zLog, "a");
+ }else{
+ g.pLog = stdout;
+ }
+
+ sqlite3_config(SQLITE_CONFIG_LOG, sqlErrorCallback, 0);
+ if( zClient ){
+ iClient = atoi(zClient);
+ if( iClient<1 ) fatalError("illegal client number: %d\n", iClient);
+ sqlite3_snprintf(sizeof(g.zName), g.zName, "%05d.client%02d",
+ GETPID(), iClient);
+ }else{
+ if( g.iTrace>0 ){
+ printf("With SQLite " SQLITE_VERSION " " SQLITE_SOURCE_ID "\n" );
+ for(i=0; (zCOption = sqlite3_compileoption_get(i))!=0; i++){
+ printf("-DSQLITE_%s\n", zCOption);
+ }
+ fflush(stdout);
+ }
+ iClient = 0;
+ unlink(g.zDbFile);
+ openFlags |= SQLITE_OPEN_CREATE;
+ }
+ rc = sqlite3_open_v2(g.zDbFile, &g.db, openFlags, g.zVfs);
+ if( rc ) fatalError("cannot open [%s]", g.zDbFile);
+ sqlite3_enable_load_extension(g.db, 1);
+ sqlite3_busy_handler(g.db, busyHandler, 0);
+ sqlite3_create_function(g.db, "vfsname", 0, SQLITE_UTF8, 0,
+ vfsNameFunc, 0, 0);
+ sqlite3_create_function(g.db, "eval", 1, SQLITE_UTF8, 0,
+ evalFunc, 0, 0);
+ g.iTimeout = DEFAULT_TIMEOUT;
+ if( g.bSqlTrace ) sqlite3_trace(g.db, sqlTraceCallback, 0);
+ if( !g.bSync ) trySql("PRAGMA synchronous=OFF");
+ if( iClient>0 ){
+ if( n>0 ) unrecognizedArguments(argv[0], n, argv+2);
+ if( g.iTrace ) logMessage("start-client");
+ while(1){
+ char *zTaskName = 0;
+ rc = startScript(iClient, &zScript, &taskId, &zTaskName);
+ if( rc==SQLITE_DONE ) break;
+ if( g.iTrace ) logMessage("begin %s (%d)", zTaskName, taskId);
+ runScript(iClient, taskId, zScript, zTaskName);
+ if( g.iTrace ) logMessage("end %s (%d)", zTaskName, taskId);
+ finishScript(iClient, taskId, 0);
+ sqlite3_free(zTaskName);
+ sqlite3_sleep(10);
+ }
+ if( g.iTrace ) logMessage("end-client");
+ }else{
+ sqlite3_stmt *pStmt;
+ int iTimeout;
+ if( n==0 ){
+ fatalError("missing script filename");
+ }
+ if( n>1 ) unrecognizedArguments(argv[0], n, argv+2);
+ runSql(
+ "CREATE TABLE task(\n"
+ " id INTEGER PRIMARY KEY,\n"
+ " name TEXT,\n"
+ " client INTEGER,\n"
+ " starttime DATE,\n"
+ " endtime DATE,\n"
+ " script TEXT\n"
+ ");"
+ "CREATE INDEX task_i1 ON task(client, starttime);\n"
+ "CREATE INDEX task_i2 ON task(client, endtime);\n"
+ "CREATE TABLE counters(nError,nTest);\n"
+ "INSERT INTO counters VALUES(0,0);\n"
+ "CREATE TABLE client(id INTEGER PRIMARY KEY, wantHalt);\n"
+ );
+ zScript = readFile(argv[2]);
+ if( g.iTrace ) logMessage("begin script [%s]\n", argv[2]);
+ runScript(0, 0, zScript, argv[2]);
+ sqlite3_free(zScript);
+ if( g.iTrace ) logMessage("end script [%s]\n", argv[2]);
+ waitForClient(0, 2000, "during shutdown...\n");
+ trySql("UPDATE client SET wantHalt=1");
+ sqlite3_sleep(10);
+ g.iTimeout = 0;
+ iTimeout = 1000;
+ while( ((rc = trySql("SELECT 1 FROM client"))==SQLITE_BUSY
+ || rc==SQLITE_ROW) && iTimeout>0 ){
+ sqlite3_sleep(10);
+ iTimeout -= 10;
+ }
+ sqlite3_sleep(100);
+ pStmt = prepareSql("SELECT nError, nTest FROM counters");
+ iTimeout = 1000;
+ while( (rc = sqlite3_step(pStmt))==SQLITE_BUSY && iTimeout>0 ){
+ sqlite3_sleep(10);
+ iTimeout -= 10;
+ }
+ if( rc==SQLITE_ROW ){
+ g.nError += sqlite3_column_int(pStmt, 0);
+ g.nTest += sqlite3_column_int(pStmt, 1);
+ }
+ sqlite3_finalize(pStmt);
+ }
+ sqlite3_close(g.db);
+ maybeClose(g.pLog);
+ maybeClose(g.pErrLog);
+ if( iClient==0 ){
+ printf("Summary: %d errors in %d tests\n", g.nError, g.nTest);
+ }
+ return g.nError>0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-09 12:37:05 +0000