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# 2006 January 14
#
# The author disclaims copyright to this source code. In place of
# a legal notice, here is a blessing:
#
# May you do good and not evil.
# May you find forgiveness for yourself and forgive others.
# May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library. The
# focus of this script is multithreading behavior
#
# $Id: thread2.test,v 1.3 2008/10/07 15:25:49 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
if {[run_thread_tests]==0} { finish_test ; return }
# Skip this whole file if the thread testing code is not enabled
#
if {[llength [info command thread_step]]==0 || [sqlite3 -has-codec]} {
finish_test
return
}
# Create some data to work with
#
do_test thread1-1.1 {
execsql {
CREATE TABLE t1(a,b);
INSERT INTO t1 VALUES(1,'abcdefgh');
INSERT INTO t1 SELECT a+1, b||b FROM t1;
INSERT INTO t1 SELECT a+2, b||b FROM t1;
INSERT INTO t1 SELECT a+4, b||b FROM t1;
SELECT count(*), max(length(b)) FROM t1;
}
} {8 64}
# Use the thread_swap command to move the database connections between
# threads, then verify that they still work.
#
do_test thread2-1.2 {
db close
thread_create A test.db
thread_create B test.db
thread_swap A B
thread_compile A {SELECT a FROM t1 LIMIT 1}
thread_result A
} {SQLITE_OK}
do_test thread2-1.3 {
thread_step A
thread_result A
} {SQLITE_ROW}
do_test thread2-1.4 {
thread_argv A 0
} {1}
do_test thread2-1.5 {
thread_finalize A
thread_result A
} {SQLITE_OK}
do_test thread2-1.6 {
thread_compile B {SELECT a FROM t1 LIMIT 1}
thread_result B
} {SQLITE_OK}
do_test thread2-1.7 {
thread_step B
thread_result B
} {SQLITE_ROW}
do_test thread2-1.8 {
thread_argv B 0
} {1}
do_test thread2-1.9 {
thread_finalize B
thread_result B
} {SQLITE_OK}
# Swap them again.
#
do_test thread2-2.2 {
thread_swap A B
thread_compile A {SELECT a FROM t1 LIMIT 1}
thread_result A
} {SQLITE_OK}
do_test thread2-2.3 {
thread_step A
thread_result A
} {SQLITE_ROW}
do_test thread2-2.4 {
thread_argv A 0
} {1}
do_test thread2-2.5 {
thread_finalize A
thread_result A
} {SQLITE_OK}
do_test thread2-2.6 {
thread_compile B {SELECT a FROM t1 LIMIT 1}
thread_result B
} {SQLITE_OK}
do_test thread2-2.7 {
thread_step B
thread_result B
} {SQLITE_ROW}
do_test thread2-2.8 {
thread_argv B 0
} {1}
do_test thread2-2.9 {
thread_finalize B
thread_result B
} {SQLITE_OK}
thread_halt A
thread_halt B
# Also important to halt the worker threads, which are using spin
# locks and eating away CPU cycles.
#
thread_halt *
finish_test
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