Return to sharedlock.test CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / sqlite3 / test

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

1.1     ! misho       1: # 2009 July 2
        !             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: sharedlock.test,v 1.1 2009/07/02 17:21:58 danielk1977 Exp $
        !            13: 
        !            14: set testdir [file dirname $argv0]
        !            15: source $testdir/tester.tcl
        !            16: db close
        !            17: 
        !            18: ifcapable !shared_cache {
        !            19:   finish_test
        !            20:   return
        !            21: }
        !            22: 
        !            23: set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
        !            24: sqlite3 db  test.db
        !            25: sqlite3 db2 test.db
        !            26: 
        !            27: do_test sharedlock-1.1 {
        !            28:   execsql {
        !            29:     CREATE TABLE t1(a, b);
        !            30:     INSERT INTO t1 VALUES(1, 'one');
        !            31:     INSERT INTO t1 VALUES(2, 'two');
        !            32:   }
        !            33: } {}
        !            34: 
        !            35: do_test sharedlock-1.2 {
        !            36:   set res [list]
        !            37:   db eval { SELECT * FROM t1 ORDER BY rowid } {
        !            38:     lappend res $a $b
        !            39:     if {$a == 1} { catch { db  eval "INSERT INTO t1 VALUES(3, 'three')" } }
        !            40: 
        !            41:     # This should fail. Connection [db] has a read-lock on t1, which should
        !            42:     # prevent connection [db2] from obtaining the write-lock it needs to
        !            43:     # modify t1. At one point there was a bug causing the previous INSERT
        !            44:     # to drop the read-lock belonging to [db].
        !            45:     if {$a == 2} { catch { db2 eval "INSERT INTO t1 VALUES(4, 'four')"  } }
        !            46:   }
        !            47:   set res
        !            48: } {1 one 2 two 3 three}
        !            49: 
        !            50: db close
        !            51: db2 close
        !            52: 
        !            53: sqlite3_enable_shared_cache $::enable_shared_cache
        !            54: finish_test
        !            55: