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1 # 2011 March 30 | |
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 # | |
12 # This file contains tests for the "unix-excl" VFS module (part of | |
13 # os_unix.c). | |
14 # | |
15 | |
16 set testdir [file dirname $argv0] | |
17 source $testdir/tester.tcl | |
18 source $testdir/lock_common.tcl | |
19 source $testdir/malloc_common.tcl | |
20 | |
21 if {$::tcl_platform(platform)!="unix" || [info commands test_syscall]==""} { | |
22 finish_test | |
23 return | |
24 } | |
25 set testprefix unixexcl | |
26 | |
27 | |
28 | |
29 # Test that when using VFS "unix-excl", the first time the database is read | |
30 # a process-wide exclusive lock is taken on it. This means other connections | |
31 # within the process may still access the db normally, but connections from | |
32 # outside the process cannot. | |
33 # | |
34 do_multiclient_test tn { | |
35 do_test unixexcl-1.$tn.1 { | |
36 sql1 { | |
37 CREATE TABLE t1(a, b); | |
38 INSERT INTO t1 VALUES('hello', 'world'); | |
39 } | |
40 } {} | |
41 do_test unixexcl-1.$tn.2 { sql2 { SELECT * FROM t1 } } {hello world} | |
42 do_test unixexcl-1.$tn.3 { | |
43 code1 { | |
44 db close | |
45 sqlite3 db test.db -vfs unix-excl | |
46 db eval { SELECT * FROM t1 } | |
47 } | |
48 } {hello world} | |
49 if {$tn==1} { | |
50 do_test unixexcl-1.$tn.4.multiproc { | |
51 csql2 { SELECT * FROM t1 } | |
52 } {1 {database is locked}} | |
53 } else { | |
54 do_test unixexcl-1.$tn.4.singleproc { | |
55 csql2 { SELECT * FROM t1 } | |
56 } {0 {hello world}} | |
57 } | |
58 } | |
59 | |
60 # Test that when using VFS "unix-excl", if a file is opened in read-only mode | |
61 # the behaviour is the same as if VFS "unix" were used. | |
62 # | |
63 do_multiclient_test tn { | |
64 do_test unixexcl-2.$tn.1 { | |
65 sql1 { | |
66 CREATE TABLE t1(a, b); | |
67 INSERT INTO t1 VALUES('hello', 'world'); | |
68 } | |
69 } {} | |
70 do_test unixexcl-2.$tn.2 { sql2 { SELECT * FROM t1 } } {hello world} | |
71 do_test unixexcl-2.$tn.3 { | |
72 code1 { | |
73 db close | |
74 sqlite3 db test.db -readonly yes -vfs unix-excl | |
75 db eval { SELECT * FROM t1 } | |
76 } | |
77 } {hello world} | |
78 do_test unixexcl-2.$tn.4 { | |
79 csql2 { SELECT * FROM t1 } | |
80 } {0 {hello world}} | |
81 } | |
82 | |
83 do_multiclient_test tn { | |
84 do_test unixexcl-3.$tn.1 { | |
85 code1 { db close; sqlite3 db file:test.db?psow=0 -vfs unix-excl -uri 1 } | |
86 code2 { db2 close; sqlite3 db2 file:test.db?psow=0 -vfs unix-excl -uri 1 } | |
87 sql1 { | |
88 PRAGMA auto_vacuum = 0; | |
89 PRAGMA journal_mode = WAL; | |
90 CREATE TABLE t1(a, b); | |
91 INSERT INTO t1 VALUES(1, 2); | |
92 } | |
93 } {wal} | |
94 | |
95 if {$tn==1} { | |
96 do_test unixexcl-3.$tn.1.multiproc { | |
97 csql2 { SELECT * FROM t1; } | |
98 } {1 {database is locked}} | |
99 } else { | |
100 do_test unixexcl-3.$tn.1.singleproc { | |
101 sql2 { SELECT * FROM t1; } | |
102 } {1 2} | |
103 | |
104 do_test unixexcl-3.$tn.2 { | |
105 sql2 { | |
106 BEGIN; | |
107 SELECT * FROM t1; | |
108 } | |
109 } {1 2} | |
110 do_test unixexcl-3.$tn.3 { | |
111 sql1 { PRAGMA wal_checkpoint; INSERT INTO t1 VALUES(3, 4); } | |
112 } {0 5 5} | |
113 do_test unixexcl-3.$tn.4 { | |
114 sql2 { SELECT * FROM t1; } | |
115 } {1 2} | |
116 do_test unixexcl-3.$tn.5 { | |
117 sql1 { SELECT * FROM t1; } | |
118 } {1 2 3 4} | |
119 do_test unixexcl-3.$tn.6 { | |
120 sql2 { COMMIT; SELECT * FROM t1; } | |
121 } {1 2 3 4} | |
122 do_test unixexcl-3.$tn.7 { | |
123 sql1 { PRAGMA wal_checkpoint; } | |
124 } {0 7 7} | |
125 } | |
126 } | |
127 | |
128 finish_test | |
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