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In shared-cache mode, do not allow one connection to checkpoint a database while a second connection is reading or writing the same shared-cache.

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FossilOrigin-Name: e75b52d156905ce16bedb94f65c01a4640bdfa75
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dan
2010-08-02 10:47:05 +00:00
parent 1c320a4366
commit a550f2decd
6 changed files with 99 additions and 30 deletions
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60
test/walshared.test Normal file
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# 2010 August 2
#
# 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 file is testing the operation of the library in
# "PRAGMA journal_mode=WAL" mode with shared-cache turned on.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
db close
set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
sqlite3 db test.db
sqlite3 db2 test.db
do_test walshared-1.0 {
execsql {
PRAGMA cache_size = 10;
PRAGMA journal_mode = WAL;
CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
INSERT INTO t1 VALUES(randomblob(100), randomblob(200));
}
} {wal}
do_test walshared-1.1 {
execsql {
BEGIN;
INSERT INTO t1 VALUES(randomblob(100), randomblob(200));
INSERT INTO t1 SELECT randomblob(100), randomblob(200) FROM t1;
INSERT INTO t1 SELECT randomblob(100), randomblob(200) FROM t1;
INSERT INTO t1 SELECT randomblob(100), randomblob(200) FROM t1;
}
} {}
do_test walshared-1.2 {
catchsql { PRAGMA wal_checkpoint }
} {1 {database table is locked}}
do_test walshared-1.3 {
catchsql { PRAGMA wal_checkpoint } db2
} {1 {database table is locked}}
do_test walshared-1.4 {
execsql { COMMIT }
execsql { PRAGMA integrity_check } db2
} {ok}
sqlite3_enable_shared_cache $::enable_shared_cache
finish_test