author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 31 Aug 2010 16:57:14 +0300 | |
branch | RCL_3 |
changeset 23 | 26645d81f48d |
parent 0 | 08ec8eefde2f |
permissions | -rw-r--r-- |
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/* |
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** 2004 January 13 |
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** |
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** The author disclaims copyright to this source code. In place of |
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** a legal notice, here is a blessing: |
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** |
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** May you do good and not evil. |
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** May you find forgiveness for yourself and forgive others. |
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** May you share freely, never taking more than you give. |
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** |
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************************************************************************* |
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** This file implements a simple standalone program used to test whether |
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** or not the SQLite library is threadsafe. |
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** |
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** This file is NOT part of the standard SQLite library. It is used for |
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** testing only. |
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*/ |
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#include <stdio.h> |
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#include <unistd.h> |
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#include <pthread.h> |
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#include <string.h> |
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#include <stdlib.h> |
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#include "sqlite.h" |
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|
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/* |
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** Name of the database |
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*/ |
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#define DB_FILE "test.db" |
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|
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/* |
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** When this variable becomes non-zero, all threads stop |
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** what they are doing. |
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*/ |
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volatile int all_stop = 0; |
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|
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/* |
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** Callback from the integrity check. If the result is anything other |
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** than "ok" it means the integrity check has failed. Set the "all_stop" |
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** global variable to stop all other activity. Print the error message |
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** or print OK if the string "ok" is seen. |
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*/ |
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int check_callback(void *pid, int argc, char **argv, char **notUsed2){ |
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int id = (int)pid; |
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if( strcmp(argv[0],"ok") ){ |
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all_stop = 1; |
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fprintf(stderr,"id: %s\n", id, argv[0]); |
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}else{ |
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/* fprintf(stderr,"%d: OK\n", id); */ |
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} |
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return 0; |
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} |
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|
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/* |
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** Do an integrity check on the database. If the first integrity check |
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** fails, try it a second time. |
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*/ |
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int integrity_check(sqlite *db, int id){ |
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int rc; |
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if( all_stop ) return 0; |
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/* fprintf(stderr,"%d: CHECK\n", id); */ |
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rc = sqlite3_exec(db, "pragma integrity_check", check_callback, 0, 0); |
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if( rc!=SQLITE_OK && rc!=SQLITE_BUSY ){ |
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fprintf(stderr,"%d, Integrity check returns %d\n", id, rc); |
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} |
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if( all_stop ){ |
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sqlite3_exec(db, "pragma integrity_check", check_callback, 0, 0); |
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} |
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return 0; |
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} |
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/* |
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** This is the worker thread |
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*/ |
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void *worker(void *workerArg){ |
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sqlite *db; |
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int id = (int)workerArg; |
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int rc; |
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int cnt = 0; |
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fprintf(stderr, "Starting worker %d\n", id); |
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while( !all_stop && cnt++<10000 ){ |
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if( cnt%100==0 ) printf("%d: %d\n", id, cnt); |
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while( (sqlite3_open(DB_FILE, &db))!=SQLITE_OK ) sched_yield(); |
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sqlite3_exec(db, "PRAGMA synchronous=OFF", 0, 0, 0); |
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/* integrity_check(db, id); */ |
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if( all_stop ){ sqlite3_close(db); break; } |
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/* fprintf(stderr, "%d: BEGIN\n", id); */ |
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rc = sqlite3_exec(db, "INSERT INTO t1 VALUES('bogus data')", 0, 0, 0); |
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/* fprintf(stderr, "%d: END rc=%d\n", id, rc); */ |
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sqlite3_close(db); |
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} |
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fprintf(stderr, "Worker %d finished\n", id); |
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return 0; |
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} |
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/* |
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** Initialize the database and start the threads |
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*/ |
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int main(int argc, char **argv){ |
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sqlite *db; |
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int i, rc; |
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pthread_t aThread[5]; |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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changeset
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103 |
if( strcmp(DB_FILE,":memory:") ){ |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
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104 |
char *zJournal = sqlite3_mprintf("%s-journal", DB_FILE); |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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105 |
unlink(DB_FILE); |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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106 |
unlink(zJournal); |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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107 |
sqlite3_free(zJournal); |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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108 |
} |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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109 |
sqlite3_open(DB_FILE, &db); |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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110 |
if( db==0 ){ |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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111 |
fprintf(stderr,"unable to initialize database\n"); |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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112 |
exit(1); |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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113 |
} |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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114 |
rc = sqlite3_exec(db, "CREATE TABLE t1(x);", 0,0,0); |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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115 |
if( rc ){ |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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116 |
fprintf(stderr,"cannot create table t1: %d\n", rc); |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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117 |
exit(1); |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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118 |
} |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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119 |
sqlite3_close(db); |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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120 |
for(i=0; i<sizeof(aThread)/sizeof(aThread[0]); i++){ |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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121 |
pthread_create(&aThread[i], 0, worker, (void*)i); |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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122 |
} |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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123 |
for(i=0; i<sizeof(aThread)/sizeof(aThread[i]); i++){ |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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124 |
pthread_join(aThread[i], 0); |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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125 |
} |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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126 |
if( !all_stop ){ |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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127 |
printf("Everything seems ok.\n"); |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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128 |
return 0; |
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129 |
}else{ |
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Revision: 201003
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130 |
printf("We hit an error.\n"); |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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131 |
return 1; |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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132 |
} |
08ec8eefde2f
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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133 |
} |