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1# 2006 January 14
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# This file implements regression tests for SQLite library.  The
12# focus of this script is multithreading behavior
13#
14# $Id: thread2.test,v 1.3 2008/10/07 15:25:49 drh Exp $
15
16
17set testdir [file dirname $argv0]
18source $testdir/tester.tcl
19
20if {[run_thread_tests]==0} { finish_test ; return }
21
22# Skip this whole file if the thread testing code is not enabled
23#
24if {[llength [info command thread_step]]==0 || [sqlite3 -has-codec]} {
25  finish_test
26  return
27}
28
29# Create some data to work with
30#
31do_test thread1-1.1 {
32  execsql {
33    CREATE TABLE t1(a,b);
34    INSERT INTO t1 VALUES(1,'abcdefgh');
35    INSERT INTO t1 SELECT a+1, b||b FROM t1;
36    INSERT INTO t1 SELECT a+2, b||b FROM t1;
37    INSERT INTO t1 SELECT a+4, b||b FROM t1;
38    SELECT count(*), max(length(b)) FROM t1;
39  }
40} {8 64}
41
42# Use the thread_swap command to move the database connections between
43# threads, then verify that they still work.
44#
45do_test thread2-1.2 {
46  db close
47  thread_create A test.db
48  thread_create B test.db
49  thread_swap A B
50  thread_compile A {SELECT a FROM t1 LIMIT 1}
51  thread_result A
52} {SQLITE_OK}
53do_test thread2-1.3 {
54  thread_step A
55  thread_result A
56} {SQLITE_ROW}
57do_test thread2-1.4 {
58  thread_argv A 0
59} {1}
60do_test thread2-1.5 {
61  thread_finalize A
62  thread_result A
63} {SQLITE_OK}
64do_test thread2-1.6 {
65  thread_compile B {SELECT a FROM t1 LIMIT 1}
66  thread_result B
67} {SQLITE_OK}
68do_test thread2-1.7 {
69  thread_step B
70  thread_result B
71} {SQLITE_ROW}
72do_test thread2-1.8 {
73  thread_argv B 0
74} {1}
75do_test thread2-1.9 {
76  thread_finalize B
77  thread_result B
78} {SQLITE_OK}
79
80# Swap them again.
81#
82do_test thread2-2.2 {
83  thread_swap A B
84  thread_compile A {SELECT a FROM t1 LIMIT 1}
85  thread_result A
86} {SQLITE_OK}
87do_test thread2-2.3 {
88  thread_step A
89  thread_result A
90} {SQLITE_ROW}
91do_test thread2-2.4 {
92  thread_argv A 0
93} {1}
94do_test thread2-2.5 {
95  thread_finalize A
96  thread_result A
97} {SQLITE_OK}
98do_test thread2-2.6 {
99  thread_compile B {SELECT a FROM t1 LIMIT 1}
100  thread_result B
101} {SQLITE_OK}
102do_test thread2-2.7 {
103  thread_step B
104  thread_result B
105} {SQLITE_ROW}
106do_test thread2-2.8 {
107  thread_argv B 0
108} {1}
109do_test thread2-2.9 {
110  thread_finalize B
111  thread_result B
112} {SQLITE_OK}
113thread_halt A
114thread_halt B
115
116# Also important to halt the worker threads, which are using spin
117# locks and eating away CPU cycles.
118#
119thread_halt *
120finish_test
121