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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 | |
17 set testdir [file dirname $argv0] | |
18 source $testdir/tester.tcl | |
19 | |
20 if {[run_thread_tests]==0} { finish_test ; return } | |
21 | |
22 # Skip this whole file if the thread testing code is not enabled | |
23 # | |
24 if {[llength [info command thread_step]]==0 || [sqlite3 -has-codec]} { | |
25 finish_test | |
26 return | |
27 } | |
28 | |
29 # Create some data to work with | |
30 # | |
31 do_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 # | |
45 do_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} | |
53 do_test thread2-1.3 { | |
54 thread_step A | |
55 thread_result A | |
56 } {SQLITE_ROW} | |
57 do_test thread2-1.4 { | |
58 thread_argv A 0 | |
59 } {1} | |
60 do_test thread2-1.5 { | |
61 thread_finalize A | |
62 thread_result A | |
63 } {SQLITE_OK} | |
64 do_test thread2-1.6 { | |
65 thread_compile B {SELECT a FROM t1 LIMIT 1} | |
66 thread_result B | |
67 } {SQLITE_OK} | |
68 do_test thread2-1.7 { | |
69 thread_step B | |
70 thread_result B | |
71 } {SQLITE_ROW} | |
72 do_test thread2-1.8 { | |
73 thread_argv B 0 | |
74 } {1} | |
75 do_test thread2-1.9 { | |
76 thread_finalize B | |
77 thread_result B | |
78 } {SQLITE_OK} | |
79 | |
80 # Swap them again. | |
81 # | |
82 do_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} | |
87 do_test thread2-2.3 { | |
88 thread_step A | |
89 thread_result A | |
90 } {SQLITE_ROW} | |
91 do_test thread2-2.4 { | |
92 thread_argv A 0 | |
93 } {1} | |
94 do_test thread2-2.5 { | |
95 thread_finalize A | |
96 thread_result A | |
97 } {SQLITE_OK} | |
98 do_test thread2-2.6 { | |
99 thread_compile B {SELECT a FROM t1 LIMIT 1} | |
100 thread_result B | |
101 } {SQLITE_OK} | |
102 do_test thread2-2.7 { | |
103 thread_step B | |
104 thread_result B | |
105 } {SQLITE_ROW} | |
106 do_test thread2-2.8 { | |
107 thread_argv B 0 | |
108 } {1} | |
109 do_test thread2-2.9 { | |
110 thread_finalize B | |
111 thread_result B | |
112 } {SQLITE_OK} | |
113 thread_halt A | |
114 thread_halt B | |
115 | |
116 # Also important to halt the worker threads, which are using spin | |
117 # locks and eating away CPU cycles. | |
118 # | |
119 thread_halt * | |
120 finish_test | |
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