mirror of
https://github.com/tursodatabase/libsql.git
synced 2024-12-17 01:21:29 +00:00
256 lines
6.5 KiB
Plaintext
256 lines
6.5 KiB
Plaintext
# 2009 April 01
|
|
#
|
|
# 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: shared6.test,v 1.4 2009/06/05 17:09:12 drh Exp $
|
|
|
|
set testdir [file dirname $argv0]
|
|
source $testdir/tester.tcl
|
|
ifcapable !shared_cache { finish_test ; return }
|
|
|
|
do_test shared6-1.1.1 {
|
|
execsql {
|
|
CREATE TABLE t1(a, b);
|
|
CREATE TABLE t2(c, d);
|
|
CREATE TABLE t3(e, f);
|
|
}
|
|
db close
|
|
} {}
|
|
do_test shared6-1.1.2 {
|
|
set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
|
|
sqlite3_enable_shared_cache
|
|
} {1}
|
|
|
|
do_test shared6-1.1.3 {
|
|
sqlite3 db1 test.db
|
|
sqlite3 db2 test.db
|
|
} {}
|
|
|
|
# Exclusive shared-cache locks. Test the following:
|
|
#
|
|
# 1.2.1: If [db1] has an exclusive lock, [db2] cannot read.
|
|
# 1.2.2: If [db1] has an exclusive lock, [db1] can read.
|
|
# 1.2.3: If [db1] has a non-exclusive write-lock, [db2] can read.
|
|
#
|
|
do_test shared6-1.2.1 {
|
|
execsql { SELECT * FROM t1 } db2 ;# Cache a compiled statement
|
|
execsql { BEGIN EXCLUSIVE } db1
|
|
catchsql { SELECT * FROM t1 } db2 ;# Execute the cached compiled statement
|
|
} {1 {database table is locked}}
|
|
do_test shared6-1.2.2 {
|
|
execsql { SELECT * FROM t1 } db1
|
|
} {}
|
|
do_test shared6-1.2.3 {
|
|
execsql {
|
|
COMMIT;
|
|
BEGIN;
|
|
INSERT INTO t2 VALUES(3, 4);
|
|
} db1
|
|
execsql { SELECT * FROM t1 } db2
|
|
} {}
|
|
do_test shared6-1.2.X {
|
|
execsql { COMMIT } db1
|
|
} {}
|
|
|
|
# Regular shared-cache locks. Verify the following:
|
|
#
|
|
# 1.3.1: If [db1] has a write-lock on t1, [db1] can read from t1.
|
|
# 1.3.2: If [db1] has a write-lock on t1, [db2] can read from t2.
|
|
# 1.3.3: If [db1] has a write-lock on t1, [db2] cannot read from t1.
|
|
# 1.3.4: If [db1] has a write-lock on t1, [db2] cannot write to t1.
|
|
# 1.3.5: If [db1] has a read-lock on t1, [db2] can read from t1.
|
|
# 1.3.6: If [db1] has a read-lock on t1, [db2] cannot write to t1.
|
|
#
|
|
do_test shared6-1.3.1 {
|
|
execsql {
|
|
BEGIN;
|
|
INSERT INTO t1 VALUES(1, 2);
|
|
} db1
|
|
execsql { SELECT * FROM t1 } db1
|
|
} {1 2}
|
|
do_test shared6-1.3.2 {
|
|
execsql { SELECT * FROM t2 } db2
|
|
} {3 4}
|
|
do_test shared6-1.3.3 {
|
|
catchsql { SELECT * FROM t1 } db2
|
|
} {1 {database table is locked: t1}}
|
|
do_test shared6-1.3.4 {
|
|
catchsql { INSERT INTO t2 VALUES(1, 2) } db2
|
|
} {1 {database table is locked}}
|
|
do_test shared6-1.3.5 {
|
|
execsql {
|
|
COMMIT;
|
|
BEGIN;
|
|
SELECT * FROM t1;
|
|
} db1
|
|
execsql { SELECT * FROM t1 } db2
|
|
} {1 2}
|
|
do_test shared6-1.3.5 {
|
|
catchsql { INSERT INTO t1 VALUES(5, 6) } db2
|
|
} {1 {database table is locked: t1}}
|
|
do_test shared6-1.3.X {
|
|
execsql { COMMIT } db1
|
|
} {}
|
|
|
|
# Read-uncommitted mode.
|
|
#
|
|
# For these tests, connection [db2] is in read-uncommitted mode.
|
|
#
|
|
# 1.4.1: If [db1] has a write-lock on t1, [db2] can still read from t1.
|
|
# 1.4.2: If [db1] has a write-lock on the db schema (sqlite_master table),
|
|
# [db2] cannot read from the schema.
|
|
# 1.4.3: If [db1] has a read-lock on t1, [db2] cannot write to t1.
|
|
#
|
|
do_test shared6-1.4.1 {
|
|
execsql { PRAGMA read_uncommitted = 1 } db2
|
|
execsql {
|
|
BEGIN;
|
|
INSERT INTO t1 VALUES(5, 6);
|
|
} db1
|
|
execsql { SELECT * FROM t1 } db2
|
|
} {1 2 5 6}
|
|
do_test shared6-1.4.2 {
|
|
execsql { CREATE TABLE t4(a, b) } db1
|
|
catchsql { SELECT * FROM t1 } db2
|
|
} {1 {database table is locked}}
|
|
do_test shared6-1.4.3 {
|
|
execsql {
|
|
COMMIT;
|
|
BEGIN;
|
|
SELECT * FROM t1;
|
|
} db1
|
|
catchsql { INSERT INTO t1 VALUES(7, 8) } db2
|
|
} {1 {database table is locked: t1}}
|
|
|
|
do_test shared6-1.X {
|
|
db1 close
|
|
db2 close
|
|
} {}
|
|
|
|
#-------------------------------------------------------------------------
|
|
# The following tests - shared6-2.* - test that two database connections
|
|
# that connect to the same file using different VFS implementations do
|
|
# not share a cache.
|
|
#
|
|
if {$::tcl_platform(platform) eq "unix"} {
|
|
do_test shared6-2.1 {
|
|
sqlite3 db1 test.db -vfs unix
|
|
sqlite3 db2 test.db -vfs unix
|
|
sqlite3 db3 test.db -vfs unix-none
|
|
sqlite3 db4 test.db -vfs unix-none
|
|
} {}
|
|
|
|
do_test shared6-2.2 {
|
|
execsql { BEGIN; INSERT INTO t1 VALUES(9, 10); } db1
|
|
catchsql { SELECT * FROM t1 } db2
|
|
} {1 {database table is locked: t1}}
|
|
do_test shared6-2.3 {
|
|
execsql { SELECT * FROM t1 } db3
|
|
} {1 2 5 6}
|
|
|
|
do_test shared6-2.3 {
|
|
execsql { COMMIT } db1
|
|
execsql { BEGIN; INSERT INTO t1 VALUES(11, 12); } db3
|
|
catchsql { SELECT * FROM t1 } db4
|
|
} {1 {database table is locked: t1}}
|
|
|
|
do_test shared6-2.4 {
|
|
execsql { SELECT * FROM t1 } db1
|
|
} {1 2 5 6 9 10}
|
|
|
|
do_test shared6-2.5 {
|
|
execsql { COMMIT } db3
|
|
} {}
|
|
|
|
do_test shared6-2.X {
|
|
db1 close
|
|
db2 close
|
|
db3 close
|
|
db4 close
|
|
} {}
|
|
}
|
|
|
|
#-------------------------------------------------------------------------
|
|
# Test that it is possible to open an exclusive transaction while
|
|
# already holding a read-lock on the database file. And that it is
|
|
# not possible if some other connection holds such a lock.
|
|
#
|
|
do_test shared6-3.1 {
|
|
sqlite3 db1 test.db
|
|
sqlite3 db2 test.db
|
|
sqlite3 db3 test.db
|
|
} {}
|
|
db1 eval {SELECT * FROM t1} {
|
|
# Within this block [db1] is holding a read-lock on t1. Test that
|
|
# this means t1 cannot be written by [db2].
|
|
#
|
|
do_test shared6-3.2 {
|
|
catchsql { INSERT INTO t1 VALUES(1, 2) } db2
|
|
} {1 {database table is locked: t1}}
|
|
|
|
do_test shared6-3.3 {
|
|
execsql { BEGIN EXCLUSIVE } db1
|
|
} {}
|
|
break
|
|
}
|
|
do_test shared6-3.4 {
|
|
catchsql { SELECT * FROM t1 } db2
|
|
} {1 {database schema is locked: main}}
|
|
do_test shared6-3.5 {
|
|
execsql COMMIT db1
|
|
} {}
|
|
db2 eval {SELECT * FROM t1} {
|
|
do_test shared6-3.6 {
|
|
catchsql { BEGIN EXCLUSIVE } db1
|
|
} {1 {database table is locked}}
|
|
break
|
|
}
|
|
do_test shared6-3.7 {
|
|
execsql { BEGIN } db1
|
|
execsql { BEGIN } db2
|
|
} {}
|
|
db2 eval {SELECT * FROM t1} {
|
|
do_test shared6-3.8 {
|
|
catchsql { INSERT INTO t1 VALUES(1, 2) } db1
|
|
} {1 {database table is locked: t1}}
|
|
break
|
|
}
|
|
do_test shared6-3.9 {
|
|
execsql { BEGIN ; ROLLBACK } db3
|
|
} {}
|
|
do_test shared6-3.10 {
|
|
catchsql { SELECT * FROM t1 } db3
|
|
} {1 {database table is locked}}
|
|
do_test shared6-3.X {
|
|
db1 close
|
|
db2 close
|
|
db3 close
|
|
} {}
|
|
|
|
do_test shared6-4.1 {
|
|
#forcedelete test.db test.db-journal
|
|
sqlite3 db1 test.db
|
|
sqlite3 db2 test.db
|
|
|
|
set ::STMT [sqlite3_prepare_v2 db1 "SELECT * FROM t1" -1 DUMMY]
|
|
execsql { CREATE TABLE t5(a, b) } db2
|
|
} {}
|
|
do_test shared6-4.2 {
|
|
sqlite3_finalize $::STMT
|
|
} {SQLITE_OK}
|
|
do_test shared6-4.X {
|
|
|
|
db1 close
|
|
db2 close
|
|
} {}
|
|
|
|
sqlite3_enable_shared_cache $::enable_shared_cache
|
|
finish_test
|