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Annotation of embedaddon/sqlite3/test/thread2.test, revision 1.1.1.1

1.1       misho       1: # 2006 January 14
                      2: #
                      3: # The author disclaims copyright to this source code.  In place of
                      4: # a legal notice, here is a blessing:
                      5: #
                      6: #    May you do good and not evil.
                      7: #    May you find forgiveness for yourself and forgive others.
                      8: #    May you share freely, never taking more than you give.
                      9: #
                     10: #***********************************************************************
                     11: # This file implements regression tests for SQLite library.  The
                     12: # focus of this script is multithreading behavior
                     13: #
                     14: # $Id: thread2.test,v 1.3 2008/10/07 15:25:49 drh Exp $
                     15: 
                     16: 
                     17: set testdir [file dirname $argv0]
                     18: source $testdir/tester.tcl
                     19: 
                     20: if {[run_thread_tests]==0} { finish_test ; return }
                     21: 
                     22: # Skip this whole file if the thread testing code is not enabled
                     23: #
                     24: if {[llength [info command thread_step]]==0 || [sqlite3 -has-codec]} {
                     25:   finish_test
                     26:   return
                     27: }
                     28: 
                     29: # Create some data to work with
                     30: #
                     31: do_test thread1-1.1 {
                     32:   execsql {
                     33:     CREATE TABLE t1(a,b);
                     34:     INSERT INTO t1 VALUES(1,'abcdefgh');
                     35:     INSERT INTO t1 SELECT a+1, b||b FROM t1;
                     36:     INSERT INTO t1 SELECT a+2, b||b FROM t1;
                     37:     INSERT INTO t1 SELECT a+4, b||b FROM t1;
                     38:     SELECT count(*), max(length(b)) FROM t1;
                     39:   }
                     40: } {8 64}
                     41: 
                     42: # Use the thread_swap command to move the database connections between
                     43: # threads, then verify that they still work.
                     44: #
                     45: do_test thread2-1.2 {
                     46:   db close
                     47:   thread_create A test.db
                     48:   thread_create B test.db
                     49:   thread_swap A B
                     50:   thread_compile A {SELECT a FROM t1 LIMIT 1}
                     51:   thread_result A
                     52: } {SQLITE_OK}
                     53: do_test thread2-1.3 {
                     54:   thread_step A
                     55:   thread_result A
                     56: } {SQLITE_ROW}
                     57: do_test thread2-1.4 {
                     58:   thread_argv A 0
                     59: } {1}
                     60: do_test thread2-1.5 {
                     61:   thread_finalize A
                     62:   thread_result A
                     63: } {SQLITE_OK}
                     64: do_test thread2-1.6 {
                     65:   thread_compile B {SELECT a FROM t1 LIMIT 1}
                     66:   thread_result B
                     67: } {SQLITE_OK}
                     68: do_test thread2-1.7 {
                     69:   thread_step B
                     70:   thread_result B
                     71: } {SQLITE_ROW}
                     72: do_test thread2-1.8 {
                     73:   thread_argv B 0
                     74: } {1}
                     75: do_test thread2-1.9 {
                     76:   thread_finalize B
                     77:   thread_result B
                     78: } {SQLITE_OK}
                     79: 
                     80: # Swap them again.
                     81: #
                     82: do_test thread2-2.2 {
                     83:   thread_swap A B
                     84:   thread_compile A {SELECT a FROM t1 LIMIT 1}
                     85:   thread_result A
                     86: } {SQLITE_OK}
                     87: do_test thread2-2.3 {
                     88:   thread_step A
                     89:   thread_result A
                     90: } {SQLITE_ROW}
                     91: do_test thread2-2.4 {
                     92:   thread_argv A 0
                     93: } {1}
                     94: do_test thread2-2.5 {
                     95:   thread_finalize A
                     96:   thread_result A
                     97: } {SQLITE_OK}
                     98: do_test thread2-2.6 {
                     99:   thread_compile B {SELECT a FROM t1 LIMIT 1}
                    100:   thread_result B
                    101: } {SQLITE_OK}
                    102: do_test thread2-2.7 {
                    103:   thread_step B
                    104:   thread_result B
                    105: } {SQLITE_ROW}
                    106: do_test thread2-2.8 {
                    107:   thread_argv B 0
                    108: } {1}
                    109: do_test thread2-2.9 {
                    110:   thread_finalize B
                    111:   thread_result B
                    112: } {SQLITE_OK}
                    113: thread_halt A
                    114: thread_halt B
                    115: 
                    116: # Also important to halt the worker threads, which are using spin
                    117: # locks and eating away CPU cycles.
                    118: #
                    119: thread_halt *   
                    120: finish_test