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SQLITE_DEFAULT_SYNCHRONOUS and the application has not run "PRAGMA synchronous", then set synchronous to the SQLITE_DEFAULT_WAL_SYNCHRONOUS setting when entering WAL mode for the first time. FossilOrigin-Name: 5791407b523abd24e832fc2361b3e9f01ee2f36a
130 lines
3.3 KiB
Plaintext
130 lines
3.3 KiB
Plaintext
# 2011 March 30
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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 file contains tests for the "unix-excl" VFS module (part of
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# os_unix.c).
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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source $testdir/lock_common.tcl
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source $testdir/malloc_common.tcl
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if {$::tcl_platform(platform)!="unix" || [info commands test_syscall]==""} {
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finish_test
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return
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}
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set testprefix unixexcl
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# Test that when using VFS "unix-excl", the first time the database is read
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# a process-wide exclusive lock is taken on it. This means other connections
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# within the process may still access the db normally, but connections from
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# outside the process cannot.
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#
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do_multiclient_test tn {
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do_test unixexcl-1.$tn.1 {
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sql1 {
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CREATE TABLE t1(a, b);
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INSERT INTO t1 VALUES('hello', 'world');
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}
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} {}
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do_test unixexcl-1.$tn.2 { sql2 { SELECT * FROM t1 } } {hello world}
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do_test unixexcl-1.$tn.3 {
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code1 {
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db close
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sqlite3 db test.db -vfs unix-excl
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db eval { SELECT * FROM t1 }
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}
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} {hello world}
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if {$tn==1} {
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do_test unixexcl-1.$tn.4.multiproc {
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csql2 { SELECT * FROM t1 }
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} {1 {database is locked}}
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} else {
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do_test unixexcl-1.$tn.4.singleproc {
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csql2 { SELECT * FROM t1 }
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} {0 {hello world}}
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}
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}
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# Test that when using VFS "unix-excl", if a file is opened in read-only mode
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# the behaviour is the same as if VFS "unix" were used.
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#
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do_multiclient_test tn {
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do_test unixexcl-2.$tn.1 {
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sql1 {
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CREATE TABLE t1(a, b);
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INSERT INTO t1 VALUES('hello', 'world');
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}
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} {}
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do_test unixexcl-2.$tn.2 { sql2 { SELECT * FROM t1 } } {hello world}
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do_test unixexcl-2.$tn.3 {
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code1 {
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db close
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sqlite3 db test.db -readonly yes -vfs unix-excl
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db eval { SELECT * FROM t1 }
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}
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} {hello world}
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do_test unixexcl-2.$tn.4 {
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csql2 { SELECT * FROM t1 }
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} {0 {hello world}}
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}
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do_multiclient_test tn {
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do_test unixexcl-3.$tn.1 {
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code1 { db close; sqlite3 db file:test.db?psow=0 -vfs unix-excl -uri 1 }
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code2 { db2 close; sqlite3 db2 file:test.db?psow=0 -vfs unix-excl -uri 1 }
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sql1 {
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PRAGMA auto_vacuum = 0;
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PRAGMA journal_mode = WAL;
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PRAGMA synchronous = FULL;
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CREATE TABLE t1(a, b);
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INSERT INTO t1 VALUES(1, 2);
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}
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} {wal}
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if {$tn==1} {
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do_test unixexcl-3.$tn.1.multiproc {
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csql2 { SELECT * FROM t1; }
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} {1 {database is locked}}
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} else {
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do_test unixexcl-3.$tn.1.singleproc {
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sql2 { SELECT * FROM t1; }
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} {1 2}
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do_test unixexcl-3.$tn.2 {
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sql2 {
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BEGIN;
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SELECT * FROM t1;
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}
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} {1 2}
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do_test unixexcl-3.$tn.3 {
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sql1 { PRAGMA wal_checkpoint; INSERT INTO t1 VALUES(3, 4); }
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} {0 5 5}
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do_test unixexcl-3.$tn.4 {
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sql2 { SELECT * FROM t1; }
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} {1 2}
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do_test unixexcl-3.$tn.5 {
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sql1 { SELECT * FROM t1; }
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} {1 2 3 4}
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do_test unixexcl-3.$tn.6 {
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sql2 { COMMIT; SELECT * FROM t1; }
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} {1 2 3 4}
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do_test unixexcl-3.$tn.7 {
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sql1 { PRAGMA wal_checkpoint; }
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} {0 7 7}
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}
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}
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finish_test
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