| /* |
| ** 2014 December 9 |
| ** |
| ** 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. |
| ** |
| ************************************************************************* |
| ** |
| ** |
| */ |
| |
| |
| /* |
| ** Thread 1. CREATE and DROP a table. |
| */ |
| static char *stress_thread_1(int iTid, void *pArg){ |
| Error err = {0}; /* Error code and message */ |
| Sqlite db = {0}; /* SQLite database connection */ |
| |
| opendb(&err, &db, "test.db", 0); |
| while( !timetostop(&err) ){ |
| sql_script(&err, &db, "CREATE TABLE IF NOT EXISTS t1(a PRIMARY KEY, b)"); |
| clear_error(&err, SQLITE_LOCKED); |
| sql_script(&err, &db, "DROP TABLE IF EXISTS t1"); |
| clear_error(&err, SQLITE_LOCKED); |
| } |
| closedb(&err, &db); |
| print_and_free_err(&err); |
| return sqlite3_mprintf("ok"); |
| } |
| |
| /* |
| ** Thread 2. Open and close database connections. |
| */ |
| static char *stress_thread_2(int iTid, void *pArg){ |
| Error err = {0}; /* Error code and message */ |
| Sqlite db = {0}; /* SQLite database connection */ |
| while( !timetostop(&err) ){ |
| opendb(&err, &db, "test.db", 0); |
| sql_script(&err, &db, "SELECT * FROM sqlite_master;"); |
| clear_error(&err, SQLITE_LOCKED); |
| closedb(&err, &db); |
| } |
| print_and_free_err(&err); |
| return sqlite3_mprintf("ok"); |
| } |
| |
| /* |
| ** Thread 3. Attempt many small SELECT statements. |
| */ |
| static char *stress_thread_3(int iTid, void *pArg){ |
| Error err = {0}; /* Error code and message */ |
| Sqlite db = {0}; /* SQLite database connection */ |
| |
| int i1 = 0; |
| int i2 = 0; |
| |
| opendb(&err, &db, "test.db", 0); |
| while( !timetostop(&err) ){ |
| sql_script(&err, &db, "SELECT * FROM t1 ORDER BY a;"); |
| i1++; |
| if( err.rc ) i2++; |
| clear_error(&err, SQLITE_LOCKED); |
| clear_error(&err, SQLITE_ERROR); |
| } |
| closedb(&err, &db); |
| print_and_free_err(&err); |
| return sqlite3_mprintf("read t1 %d/%d attempts", i2, i1); |
| } |
| |
| /* |
| ** Thread 5. Attempt INSERT statements. |
| */ |
| static char *stress_thread_4(int iTid, void *pArg){ |
| Error err = {0}; /* Error code and message */ |
| Sqlite db = {0}; /* SQLite database connection */ |
| int i1 = 0; |
| int i2 = 0; |
| int iArg = PTR2INT(pArg); |
| |
| opendb(&err, &db, "test.db", 0); |
| while( !timetostop(&err) ){ |
| if( iArg ){ |
| closedb(&err, &db); |
| opendb(&err, &db, "test.db", 0); |
| } |
| sql_script(&err, &db, |
| "WITH loop(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM loop LIMIT 200) " |
| "INSERT INTO t1 VALUES(randomblob(60), randomblob(60));" |
| ); |
| i1++; |
| if( err.rc ) i2++; |
| clear_error(&err, SQLITE_LOCKED); |
| clear_error(&err, SQLITE_ERROR); |
| } |
| closedb(&err, &db); |
| print_and_free_err(&err); |
| return sqlite3_mprintf("wrote t1 %d/%d attempts", i2, i1); |
| } |
| |
| /* |
| ** Thread 6. Attempt DELETE operations. |
| */ |
| static char *stress_thread_5(int iTid, void *pArg){ |
| Error err = {0}; /* Error code and message */ |
| Sqlite db = {0}; /* SQLite database connection */ |
| int iArg = PTR2INT(pArg); |
| |
| int i1 = 0; |
| int i2 = 0; |
| |
| opendb(&err, &db, "test.db", 0); |
| while( !timetostop(&err) ){ |
| i64 i = (i1 % 4); |
| if( iArg ){ |
| closedb(&err, &db); |
| opendb(&err, &db, "test.db", 0); |
| } |
| execsql(&err, &db, "DELETE FROM t1 WHERE (rowid % 4)==:i", &i); |
| i1++; |
| if( err.rc ) i2++; |
| clear_error(&err, SQLITE_LOCKED); |
| } |
| closedb(&err, &db); |
| print_and_free_err(&err); |
| return sqlite3_mprintf("deleted from t1 %d/%d attempts", i2, i1); |
| } |
| |
| |
| static void stress1(int nMs){ |
| Error err = {0}; |
| Threadset threads = {0}; |
| |
| setstoptime(&err, nMs); |
| sqlite3_enable_shared_cache(1); |
| |
| launch_thread(&err, &threads, stress_thread_1, 0); |
| launch_thread(&err, &threads, stress_thread_1, 0); |
| |
| launch_thread(&err, &threads, stress_thread_2, 0); |
| launch_thread(&err, &threads, stress_thread_2, 0); |
| |
| launch_thread(&err, &threads, stress_thread_3, 0); |
| launch_thread(&err, &threads, stress_thread_3, 0); |
| |
| launch_thread(&err, &threads, stress_thread_4, 0); |
| launch_thread(&err, &threads, stress_thread_4, 0); |
| |
| launch_thread(&err, &threads, stress_thread_5, 0); |
| launch_thread(&err, &threads, stress_thread_5, (void*)1); |
| |
| join_all_threads(&err, &threads); |
| sqlite3_enable_shared_cache(0); |
| |
| print_and_free_err(&err); |
| } |
| |
| /************************************************************************** |
| *************************************************************************** |
| ** Start of test case "stress2" |
| */ |
| |
| |
| |
| /* |
| ** 1. CREATE TABLE statements. |
| ** 2. DROP TABLE statements. |
| ** 3. Small SELECT statements. |
| ** 4. Big SELECT statements. |
| ** 5. Small INSERT statements. |
| ** 6. Big INSERT statements. |
| ** 7. Small UPDATE statements. |
| ** 8. Big UPDATE statements. |
| ** 9. Small DELETE statements. |
| ** 10. Big DELETE statements. |
| ** 11. VACUUM. |
| ** 14. Integrity-check. |
| ** 17. Switch the journal mode from delete to wal and back again. |
| ** 19. Open and close database connections rapidly. |
| */ |
| |
| #define STRESS2_TABCNT 5 /* count1 in SDS test */ |
| |
| #define STRESS2_COUNT2 200 /* count2 in SDS test */ |
| #define STRESS2_COUNT3 57 /* count2 in SDS test */ |
| |
| static void stress2_workload1(Error *pErr, Sqlite *pDb, int i){ |
| int iTab = (i % (STRESS2_TABCNT-1)) + 1; |
| sql_script_printf(pErr, pDb, |
| "CREATE TABLE IF NOT EXISTS t%d(x PRIMARY KEY, y, z);", iTab |
| ); |
| } |
| |
| static void stress2_workload2(Error *pErr, Sqlite *pDb, int i){ |
| int iTab = (i % (STRESS2_TABCNT-1)) + 1; |
| sql_script_printf(pErr, pDb, "DROP TABLE IF EXISTS t%d;", iTab); |
| } |
| |
| static void stress2_workload3(Error *pErr, Sqlite *pDb, int i){ |
| sql_script(pErr, pDb, "SELECT * FROM t0 WHERE z = 'small'"); |
| } |
| |
| static void stress2_workload4(Error *pErr, Sqlite *pDb, int i){ |
| sql_script(pErr, pDb, "SELECT * FROM t0 WHERE z = 'big'"); |
| } |
| |
| static void stress2_workload5(Error *pErr, Sqlite *pDb, int i){ |
| sql_script(pErr, pDb, |
| "INSERT INTO t0 VALUES(hex(random()), hex(randomblob(200)), 'small');" |
| ); |
| } |
| |
| static void stress2_workload6(Error *pErr, Sqlite *pDb, int i){ |
| sql_script(pErr, pDb, |
| "INSERT INTO t0 VALUES(hex(random()), hex(randomblob(57)), 'big');" |
| ); |
| } |
| |
| static void stress2_workload7(Error *pErr, Sqlite *pDb, int i){ |
| sql_script_printf(pErr, pDb, |
| "UPDATE t0 SET y = hex(randomblob(200)) " |
| "WHERE x LIKE hex((%d %% 5)) AND z='small';" |
| ,i |
| ); |
| } |
| static void stress2_workload8(Error *pErr, Sqlite *pDb, int i){ |
| sql_script_printf(pErr, pDb, |
| "UPDATE t0 SET y = hex(randomblob(57)) " |
| "WHERE x LIKE hex(%d %% 5) AND z='big';" |
| ,i |
| ); |
| } |
| |
| static void stress2_workload9(Error *pErr, Sqlite *pDb, int i){ |
| sql_script_printf(pErr, pDb, |
| "DELETE FROM t0 WHERE x LIKE hex(%d %% 5) AND z='small';", i |
| ); |
| } |
| static void stress2_workload10(Error *pErr, Sqlite *pDb, int i){ |
| sql_script_printf(pErr, pDb, |
| "DELETE FROM t0 WHERE x LIKE hex(%d %% 5) AND z='big';", i |
| ); |
| } |
| |
| static void stress2_workload11(Error *pErr, Sqlite *pDb, int i){ |
| sql_script(pErr, pDb, "VACUUM"); |
| } |
| |
| static void stress2_workload14(Error *pErr, Sqlite *pDb, int i){ |
| sql_script(pErr, pDb, "PRAGMA integrity_check"); |
| } |
| |
| static void stress2_workload17(Error *pErr, Sqlite *pDb, int i){ |
| sql_script_printf(pErr, pDb, |
| "PRAGMA journal_mode = %q", (i%2) ? "delete" : "wal" |
| ); |
| } |
| |
| static char *stress2_workload19(int iTid, void *pArg){ |
| Error err = {0}; /* Error code and message */ |
| Sqlite db = {0}; /* SQLite database connection */ |
| const char *zDb = (const char*)pArg; |
| while( !timetostop(&err) ){ |
| opendb(&err, &db, zDb, 0); |
| sql_script(&err, &db, "SELECT * FROM sqlite_master;"); |
| clear_error(&err, SQLITE_LOCKED); |
| closedb(&err, &db); |
| } |
| print_and_free_err(&err); |
| return sqlite3_mprintf("ok"); |
| } |
| |
| |
| typedef struct Stress2Ctx Stress2Ctx; |
| struct Stress2Ctx { |
| const char *zDb; |
| void (*xProc)(Error*, Sqlite*, int); |
| }; |
| |
| static char *stress2_thread_wrapper(int iTid, void *pArg){ |
| Stress2Ctx *pCtx = (Stress2Ctx*)pArg; |
| Error err = {0}; /* Error code and message */ |
| Sqlite db = {0}; /* SQLite database connection */ |
| int i1 = 0; |
| int i2 = 0; |
| |
| while( !timetostop(&err) ){ |
| int cnt; |
| opendb(&err, &db, pCtx->zDb, 0); |
| for(cnt=0; err.rc==SQLITE_OK && cnt<STRESS2_TABCNT; cnt++){ |
| pCtx->xProc(&err, &db, i1); |
| i2 += (err.rc==SQLITE_OK); |
| clear_error(&err, SQLITE_LOCKED); |
| i1++; |
| } |
| closedb(&err, &db); |
| } |
| |
| print_and_free_err(&err); |
| return sqlite3_mprintf("ok %d/%d", i2, i1); |
| } |
| |
| static void stress2_launch_thread_loop( |
| Error *pErr, /* IN/OUT: Error code */ |
| Threadset *pThreads, /* Thread set */ |
| const char *zDb, /* Database name */ |
| void (*x)(Error*,Sqlite*,int) /* Run this until error or timeout */ |
| ){ |
| Stress2Ctx *pCtx = sqlite3_malloc(sizeof(Stress2Ctx)); |
| pCtx->zDb = zDb; |
| pCtx->xProc = x; |
| launch_thread(pErr, pThreads, stress2_thread_wrapper, (void*)pCtx); |
| } |
| |
| static void stress2(int nMs){ |
| struct Stress2Task { |
| void (*x)(Error*,Sqlite*,int); |
| } aTask[] = { |
| { stress2_workload1 }, |
| { stress2_workload2 }, |
| { stress2_workload3 }, |
| { stress2_workload4 }, |
| { stress2_workload5 }, |
| { stress2_workload6 }, |
| { stress2_workload7 }, |
| { stress2_workload8 }, |
| { stress2_workload9 }, |
| { stress2_workload10 }, |
| { stress2_workload11 }, |
| { stress2_workload14 }, |
| { stress2_workload17 }, |
| }; |
| const char *zDb = "test.db"; |
| |
| int i; |
| Error err = {0}; |
| Sqlite db = {0}; |
| Threadset threads = {0}; |
| |
| /* To make sure the db file is empty before commencing */ |
| opendb(&err, &db, zDb, 1); |
| sql_script(&err, &db, |
| "CREATE TABLE IF NOT EXISTS t0(x PRIMARY KEY, y, z);" |
| "CREATE INDEX IF NOT EXISTS i0 ON t0(y);" |
| ); |
| closedb(&err, &db); |
| |
| setstoptime(&err, nMs); |
| sqlite3_enable_shared_cache(1); |
| |
| for(i=0; i<sizeof(aTask)/sizeof(aTask[0]); i++){ |
| stress2_launch_thread_loop(&err, &threads, zDb, aTask[i].x); |
| } |
| launch_thread(&err, &threads, stress2_workload19, (void*)zDb); |
| launch_thread(&err, &threads, stress2_workload19, (void*)zDb); |
| |
| join_all_threads(&err, &threads); |
| sqlite3_enable_shared_cache(0); |
| print_and_free_err(&err); |
| } |
| |
| |
| |
| |
