3 # The author disclaims copyright to this source code. In place of
4 # a legal notice, here is a blessing:
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.
10 #***********************************************************************
12 # This test attempts to deadlock SQLite in shared-cache mode.
15 # $Id: thread002.test,v 1.9 2009/03/26 14:48:07 danielk1977 Exp $
17 set testdir [file dirname $argv0]
19 source $testdir/tester.tcl
20 if {[run_thread_tests]==0} { finish_test ; return }
23 set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
28 # Create 3 databases with identical schemas:
29 for {set ii 0} {$ii < 3} {incr ii} {
30 file delete -force test${ii}.db
31 sqlite3 db test${ii}.db
33 CREATE TABLE t1(k, v);
34 CREATE INDEX t1_i ON t1(v);
35 INSERT INTO t1(v) VALUES(1.0);
42 set ::DB [sqlite3_open test.db]
43 for {set ii 1} {$ii <= 3} {incr ii} {
44 set T [lindex $order [expr $ii-1]]
45 execsql "ATTACH 'test${T}.db' AS aux${ii}"
48 for {set ii 0} {$ii < 100} {incr ii} {
49 execsql { SELECT * FROM aux1.t1 }
50 execsql { INSERT INTO aux1.t1(v) SELECT sum(v) FROM aux2.t1 }
52 execsql { SELECT * FROM aux2.t1 }
53 execsql { INSERT INTO aux2.t1(v) SELECT sum(v) FROM aux3.t1 }
55 execsql { SELECT * FROM aux3.t1 }
56 execsql { INSERT INTO aux3.t1(v) SELECT sum(v) FROM aux1.t1 }
58 execsql { CREATE TABLE IF NOT EXISTS aux1.t2(a,b) }
59 execsql { DROP TABLE IF EXISTS aux1.t2 }
61 # if {($ii%10)==0} {puts -nonewline . ; flush stdout}
62 puts -nonewline . ; flush stdout
69 set order_list [list {0 1 2} {0 2 1} {1 0 2} {1 2 0} {2 0 1} {2 1 0}]
72 for {set ii 0} {$ii < $::NTHREAD} {incr ii} {
73 set order [lindex $order_list [expr $ii%6]]
74 thread_spawn finished($ii) $thread_procs "set order {$order}" $thread_program
77 # Wait for all threads to finish, then check they all returned "OK".
79 for {set i 0} {$i < $::NTHREAD} {incr i} {
80 if {![info exists finished($i)]} {
83 do_test thread002.2.$i {
88 # Check all three databases are Ok.
89 for {set ii 0} {$ii < 3} {incr ii} {
90 do_test thread002.3.$ii {
91 sqlite3 db test${ii}.db
93 [execsql {SELECT count(*) FROM t1}] \
94 [execsql {PRAGMA integrity_check}] \
98 } [list [expr 1 + $::NTHREAD*100] ok]
101 sqlite3_enable_shared_cache $::enable_shared_cache
102 set sqlite_open_file_count 0