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Annotation of embedaddon/sqlite3/test/thread001.test, revision 1.1

1.1     ! misho       1: # 2007 September 7
        !             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: #
        !            12: # $Id: thread001.test,v 1.10 2009/03/26 14:48:07 danielk1977 Exp $
        !            13: 
        !            14: set testdir [file dirname $argv0]
        !            15: 
        !            16: source $testdir/tester.tcl
        !            17: if {[run_thread_tests]==0} { finish_test ; return }
        !            18: 
        !            19: set ::enable_shared_cache [sqlite3_enable_shared_cache]
        !            20: 
        !            21: set ::NTHREAD 10
        !            22: 
        !            23: # Run this test three times: 
        !            24: # 
        !            25: #    1) All threads use the same database handle.
        !            26: #    2) All threads use their own database handles.
        !            27: #    3) All threads use their own database handles, shared-cache is enabled.
        !            28: #
        !            29: #
        !            30: #
        !            31: foreach {tn same_db shared_cache} [list \
        !            32:          1  1       0                   \
        !            33:          2  0       0                   \
        !            34:          3  0       1                   \
        !            35: ] {
        !            36:   # Empty the database.
        !            37:   #
        !            38:   catchsql { DROP TABLE ab; }
        !            39: 
        !            40:   do_test thread001.$tn.0 {
        !            41:     db close
        !            42:     sqlite3_enable_shared_cache $shared_cache
        !            43:     sqlite3_enable_shared_cache $shared_cache
        !            44:   } $shared_cache
        !            45:   sqlite3 db test.db -fullmutex 1 -key xyzzy
        !            46: 
        !            47:   set dbconfig ""
        !            48:   if {$same_db} {
        !            49:     set dbconfig [list set ::DB [sqlite3_connection_pointer db]]
        !            50:   }
        !            51: 
        !            52:   # Set up a database and a schema. The database contains a single
        !            53:   # table with two columns. The first column ("a") is an INTEGER PRIMARY 
        !            54:   # KEY. The second contains the md5sum of all rows in the table with
        !            55:   # a smaller value stored in column "a".
        !            56:   #
        !            57:   do_test thread001.$tn.1 {
        !            58:     execsql {
        !            59:       CREATE TABLE ab(a INTEGER PRIMARY KEY, b);
        !            60:       CREATE INDEX ab_i ON ab(b);
        !            61:       INSERT INTO ab SELECT NULL, md5sum(a, b) FROM ab;
        !            62:       SELECT count(*) FROM ab;
        !            63:     }
        !            64:   } {1}
        !            65:   do_test thread001.$tn.2 {
        !            66:     execsql {
        !            67:       SELECT 
        !            68:         (SELECT md5sum(a, b) FROM ab WHERE a < (SELECT max(a) FROM ab)) ==
        !            69:         (SELECT b FROM ab WHERE a = (SELECT max(a) FROM ab))
        !            70:     }
        !            71:   } {1}
        !            72:   do_test thread001.$tn.3 {
        !            73:     execsql { PRAGMA integrity_check }
        !            74:   } {ok}
        !            75: 
        !            76:   set thread_program {
        !            77:     #sqlthread parent {puts STARTING..}
        !            78:     set needToClose 0
        !            79:     if {![info exists ::DB]} {
        !            80:       set ::DB [sqlthread open test.db xyzzy]
        !            81:       #sqlthread parent "puts \"OPEN $::DB\""
        !            82:       set needToClose 1
        !            83:     }
        !            84:   
        !            85:     for {set i 0} {$i < 100} {incr i} {
        !            86:       # Test that the invariant is true.
        !            87:       do_test t1 {
        !            88:         execsql {
        !            89:           SELECT 
        !            90:             (SELECT md5sum(a, b) FROM ab WHERE a < (SELECT max(a) FROM ab)) ==
        !            91:             (SELECT b FROM ab WHERE a = (SELECT max(a) FROM ab))
        !            92:         }
        !            93:       } {1}
        !            94:   
        !            95:       # Add another row to the database.
        !            96:       execsql { INSERT INTO ab SELECT NULL, md5sum(a, b) FROM ab }
        !            97:     }
        !            98:   
        !            99:     if {$needToClose} {
        !           100:       #sqlthread parent "puts \"CLOSE $::DB\""
        !           101:       sqlite3_close $::DB
        !           102:     }
        !           103:     #sqlthread parent "puts \"DONE\""
        !           104:   
        !           105:     list OK
        !           106:   }
        !           107:   
        !           108:   # Kick off $::NTHREAD threads:
        !           109:   #
        !           110:   array unset finished
        !           111:   for {set i 0} {$i < $::NTHREAD} {incr i} {
        !           112:     thread_spawn finished($i) $dbconfig $thread_procs $thread_program
        !           113:   }
        !           114:   
        !           115:   # Wait for all threads to finish,  then check they all returned "OK".
        !           116:   #
        !           117:   for {set i 0} {$i < $::NTHREAD} {incr i} {
        !           118:     if {![info exists finished($i)]} {
        !           119:       vwait finished($i)
        !           120:     }
        !           121:     do_test thread001.$tn.4.$i {
        !           122:       set ::finished($i)
        !           123:     } OK
        !           124:   }
        !           125:   
        !           126:   # Check the database still looks Ok.
        !           127:   #
        !           128:   do_test thread001.$tn.5 {
        !           129:     execsql { SELECT count(*) FROM ab; }
        !           130:   } [expr {1 + $::NTHREAD*100}]
        !           131:   do_test thread001.$tn.6 {
        !           132:     execsql {
        !           133:       SELECT 
        !           134:         (SELECT md5sum(a, b) FROM ab WHERE a < (SELECT max(a) FROM ab)) ==
        !           135:         (SELECT b FROM ab WHERE a = (SELECT max(a) FROM ab))
        !           136:     }
        !           137:   } {1}
        !           138:   do_test thread001.$tn.7 {
        !           139:     execsql { PRAGMA integrity_check }
        !           140:   } {ok}
        !           141: }
        !           142: 
        !           143: sqlite3_enable_shared_cache $::enable_shared_cache
        !           144: set sqlite_open_file_count 0
        !           145: finish_test