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Annotation of embedaddon/sqlite3/test/thread002.test, revision 1.1.1.1

1.1       misho       1: # 2007 September 10
                      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: #   This test attempts to deadlock SQLite in shared-cache mode.
                     13: #     
                     14: #
                     15: # $Id: thread002.test,v 1.9 2009/03/26 14:48:07 danielk1977 Exp $
                     16: 
                     17: set testdir [file dirname $argv0]
                     18: 
                     19: set do_not_use_codec 1
                     20: source $testdir/tester.tcl
                     21: if {[run_thread_tests]==0} { finish_test ; return }
                     22: 
                     23: 
                     24: db close
                     25: set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
                     26: 
                     27: set ::NTHREAD 10
                     28: 
                     29: do_test thread002.1 {
                     30:   # Create 3 databases with identical schemas:
                     31:   for {set ii 0} {$ii < 3} {incr ii} {
                     32:     forcedelete test${ii}.db
                     33:     sqlite3 db test${ii}.db
                     34:     execsql {
                     35:       CREATE TABLE t1(k, v);
                     36:       CREATE INDEX t1_i ON t1(v);
                     37:       INSERT INTO t1(v) VALUES(1.0);
                     38:     }
                     39:     db close
                     40:   }
                     41: } {}
                     42: 
                     43: set thread_program {
                     44:   set ::DB [sqlite3_open test.db]
                     45:   for {set ii 1} {$ii <= 3} {incr ii} {
                     46:     set T [lindex $order [expr $ii-1]]
                     47:     execsql "ATTACH 'test${T}.db' AS aux${ii}"
                     48:   }
                     49: 
                     50:   for {set ii 0} {$ii < 100} {incr ii} {
                     51:     execsql { SELECT * FROM aux1.t1 }
                     52:     execsql { INSERT INTO aux1.t1(v) SELECT sum(v) FROM aux2.t1 }
                     53:   
                     54:     execsql { SELECT * FROM aux2.t1 }
                     55:     execsql { INSERT INTO aux2.t1(v) SELECT sum(v) FROM aux3.t1 }
                     56:   
                     57:     execsql { SELECT * FROM aux3.t1 }
                     58:     execsql { INSERT INTO aux3.t1(v) SELECT sum(v) FROM aux1.t1 }
                     59: 
                     60:     execsql { CREATE TABLE IF NOT EXISTS aux1.t2(a,b) }
                     61:     execsql { DROP TABLE IF EXISTS aux1.t2 }
                     62: 
                     63:     # if {($ii%10)==0} {puts -nonewline . ; flush stdout}
                     64:     puts -nonewline . ; flush stdout
                     65:   }
                     66: 
                     67:   sqlite3_close $::DB
                     68:   list OK
                     69: }
                     70: 
                     71: set order_list [list {0 1 2} {0 2 1} {1 0 2} {1 2 0} {2 0 1} {2 1 0}]
                     72: 
                     73: array unset finished
                     74: for {set ii 0} {$ii < $::NTHREAD} {incr ii} {
                     75:   set order [lindex $order_list [expr $ii%6]]
                     76:   thread_spawn finished($ii) $thread_procs "set order {$order}" $thread_program
                     77: }
                     78: 
                     79: # Wait for all threads to finish,  then check they all returned "OK".
                     80: #
                     81: for {set i 0} {$i < $::NTHREAD} {incr i} {
                     82:   if {![info exists finished($i)]} {
                     83:     vwait finished($i)
                     84:   }
                     85:   do_test thread002.2.$i {
                     86:     set ::finished($i)
                     87:   } OK
                     88: }
                     89: 
                     90: # Check all three databases are Ok.
                     91: for {set ii 0} {$ii < 3} {incr ii} {
                     92:   do_test thread002.3.$ii {
                     93:     sqlite3 db test${ii}.db
                     94:     set res [list                         \
                     95:       [execsql {SELECT count(*) FROM t1}] \
                     96:       [execsql {PRAGMA integrity_check}]  \
                     97:     ]
                     98:     db close
                     99:     set res
                    100:   } [list [expr 1 + $::NTHREAD*100] ok]
                    101: }
                    102: 
                    103: sqlite3_enable_shared_cache $::enable_shared_cache
                    104: set sqlite_open_file_count 0
                    105: finish_test