140 lines
3.4 KiB
Plaintext
140 lines
3.4 KiB
Plaintext
# 2005 January 19
|
|
#
|
|
# 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.
|
|
#
|
|
#***********************************************************************
|
|
#
|
|
# $Id: shared2.test,v 1.8 2009/06/05 17:09:12 drh Exp $
|
|
|
|
set testdir [file dirname $argv0]
|
|
source $testdir/tester.tcl
|
|
source $testdir/lock_common.tcl
|
|
source $testdir/malloc_common.tcl
|
|
db close
|
|
|
|
ifcapable !shared_cache {
|
|
finish_test
|
|
return
|
|
}
|
|
set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
|
|
|
|
# Test that if we delete all rows from a table any read-uncommitted
|
|
# cursors are correctly invalidated. Test on both table and index btrees.
|
|
do_test shared2-1.1 {
|
|
sqlite3 db1 test.db
|
|
sqlite3 db2 test.db
|
|
|
|
# Set up some data. Table "numbers" has 64 rows after this block
|
|
# is executed.
|
|
execsql {
|
|
BEGIN;
|
|
CREATE TABLE numbers(a PRIMARY KEY, b);
|
|
INSERT INTO numbers(oid) VALUES(NULL);
|
|
INSERT INTO numbers(oid) SELECT NULL FROM numbers;
|
|
INSERT INTO numbers(oid) SELECT NULL FROM numbers;
|
|
INSERT INTO numbers(oid) SELECT NULL FROM numbers;
|
|
INSERT INTO numbers(oid) SELECT NULL FROM numbers;
|
|
INSERT INTO numbers(oid) SELECT NULL FROM numbers;
|
|
INSERT INTO numbers(oid) SELECT NULL FROM numbers;
|
|
UPDATE numbers set a = oid, b = 'abcdefghijklmnopqrstuvwxyz0123456789';
|
|
COMMIT;
|
|
} db1
|
|
} {}
|
|
do_test shared2-1.2 {
|
|
# Put connection 2 in read-uncommitted mode and start a SELECT on table
|
|
# 'numbers'. Half way through the SELECT, use connection 1 to delete the
|
|
# contents of this table.
|
|
execsql {
|
|
pragma read_uncommitted = 1;
|
|
} db2
|
|
set count [execsql {SELECT count(*) FROM numbers} db2]
|
|
db2 eval {SELECT a FROM numbers ORDER BY oid} {
|
|
if {$a==32} {
|
|
execsql {
|
|
BEGIN;
|
|
DELETE FROM numbers;
|
|
} db1
|
|
}
|
|
}
|
|
list $a $count
|
|
} {32 64}
|
|
do_test shared2-1.3 {
|
|
# Same test as 1.2, except scan using the index this time.
|
|
execsql {
|
|
ROLLBACK;
|
|
} db1
|
|
set count [execsql {SELECT count(*) FROM numbers} db2]
|
|
db2 eval {SELECT a, b FROM numbers ORDER BY a} {
|
|
if {$a==32} {
|
|
execsql {
|
|
DELETE FROM numbers;
|
|
} db1
|
|
}
|
|
}
|
|
list $a $count
|
|
} {32 64}
|
|
|
|
|
|
db1 close
|
|
db2 close
|
|
|
|
do_test shared2-3.2 {
|
|
sqlite3_enable_shared_cache 1
|
|
} {1}
|
|
|
|
forcedelete test.db
|
|
|
|
sqlite3 db test.db
|
|
do_test shared2-4.1 {
|
|
execsql {
|
|
CREATE TABLE t0(a, b);
|
|
CREATE TABLE t1(a, b DEFAULT 'hello world');
|
|
}
|
|
} {}
|
|
db close
|
|
|
|
sqlite3 db test.db
|
|
sqlite3 db2 test.db
|
|
|
|
do_test shared2-4.2 {
|
|
execsql { SELECT a, b FROM t0 } db
|
|
execsql { INSERT INTO t1(a) VALUES(1) } db2
|
|
} {}
|
|
|
|
do_test shared2-4.3 {
|
|
db2 close
|
|
db close
|
|
} {}
|
|
|
|
# At one point, this was causing a crash.
|
|
#
|
|
do_test shared2-5.1 {
|
|
sqlite3 db test.db
|
|
sqlite3 db2 test.db
|
|
execsql { CREATE TABLE t2(a, b, c) }
|
|
|
|
# The following statement would crash when attempting to sqlite3_free()
|
|
# a pointer allocated from a lookaside buffer.
|
|
execsql { CREATE INDEX i1 ON t2(a) } db2
|
|
} {}
|
|
|
|
db close
|
|
db2 close
|
|
|
|
# The following test verifies that shared-cache mode does not automatically
|
|
# turn on exclusive-locking mode for some reason.
|
|
do_multiclient_test {tn} {
|
|
sql1 { CREATE TABLE t1(a, b) }
|
|
sql2 { CREATE TABLE t2(a, b) }
|
|
do_test shared2-6.$tn.1 { sql1 { SELECT * FROM t2 } } {}
|
|
do_test shared2-6.$tn.2 { sql2 { SELECT * FROM t1 } } {}
|
|
}
|
|
|
|
sqlite3_enable_shared_cache $::enable_shared_cache
|
|
finish_test
|