110 lines
2.6 KiB
Plaintext
110 lines
2.6 KiB
Plaintext
# 2007 September 10
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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# This test attempts to deadlock SQLite in shared-cache mode.
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#
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#
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# $Id: thread002.test,v 1.3 2008/07/12 14:52:20 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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source $testdir/thread_common.tcl
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if {[info commands sqlthread] eq ""} {
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finish_test
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return
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}
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ifcapable !attach {
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finish_test
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return
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}
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db close
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sqlite3_enable_shared_cache 1
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set ::NTHREAD 10
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do_test thread002.1 {
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# Create 3 databases with identical schemas:
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for {set ii 0} {$ii < 3} {incr ii} {
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file delete -force test${ii}.db
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sqlite3 db test${ii}.db
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execsql {
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CREATE TABLE t1(k, v);
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CREATE INDEX t1_i ON t1(v);
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INSERT INTO t1(v) VALUES(1.0);
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}
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db close
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}
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} {}
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set thread_program {
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set ::DB [sqlite3_open test.db]
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for {set ii 1} {$ii <= 3} {incr ii} {
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set T [lindex $order [expr $ii-1]]
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execsql "ATTACH 'test${T}.db' AS aux${ii}"
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}
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for {set ii 0} {$ii < 100} {incr ii} {
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execsql { SELECT * FROM aux1.t1 }
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execsql { INSERT INTO aux1.t1(v) SELECT sum(v) FROM aux2.t1 }
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execsql { SELECT * FROM aux2.t1 }
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execsql { INSERT INTO aux2.t1(v) SELECT sum(v) FROM aux3.t1 }
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execsql { SELECT * FROM aux3.t1 }
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execsql { INSERT INTO aux3.t1(v) SELECT sum(v) FROM aux1.t1 }
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execsql { CREATE TABLE aux1.t2(a,b) }
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execsql { DROP TABLE aux1.t2 }
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# if {($ii%10)==0} {puts -nonewline . ; flush stdout}
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puts -nonewline . ; flush stdout
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}
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sqlite3_close $::DB
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list OK
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}
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set order_list [list {0 1 2} {0 2 1} {1 0 2} {1 2 0} {2 0 1} {2 1 0}]
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array unset finished
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for {set ii 0} {$ii < $::NTHREAD} {incr ii} {
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set order [lindex $order_list [expr $ii%6]]
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thread_spawn finished($ii) $thread_procs "set order {$order}" $thread_program
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}
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# Wait for all threads to finish, then check they all returned "OK".
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#
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for {set i 0} {$i < $::NTHREAD} {incr i} {
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if {![info exists finished($i)]} {
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vwait finished($i)
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}
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do_test thread001.2.$i {
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set ::finished($i)
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} OK
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}
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# Check all three databases are Ok.
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for {set ii 0} {$ii < 3} {incr ii} {
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do_test thread002.3.$ii {
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sqlite3 db test${ii}.db
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set res [list \
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[execsql {SELECT count(*) FROM t1}] \
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[execsql {PRAGMA integrity_check}] \
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]
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db close
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set res
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} [list [expr 1 + $::NTHREAD*100] ok]
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}
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finish_test
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