Adding the sqlite sourcecode
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Jiří Stach committed
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# 2008 June 28
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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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# This file implements regression tests for SQLite library. The
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# focus of this script is database locks.
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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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set testprefix lock5
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# This file is only run if using the unix backend compiled with the
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# SQLITE_ENABLE_LOCKING_STYLE macro.
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db close
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if {[catch {sqlite3 db test.db -vfs unix-none} msg]} {
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finish_test
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return
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}
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db close
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forcedelete test.db.lock
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ifcapable lock_proxy_pragmas {
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set ::using_proxy 0
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foreach {name value} [array get env SQLITE_FORCE_PROXY_LOCKING] {
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set ::using_proxy $value
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}
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# Disable the proxy locking for these tests
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set env(SQLITE_FORCE_PROXY_LOCKING) "0"
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}
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do_test lock5-dotfile.1 {
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sqlite3 db test.db -vfs unix-dotfile
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execsql {
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BEGIN;
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CREATE TABLE t1(a, b);
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}
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} {}
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do_test lock5-dotfile.2 {
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file exists test.db.lock
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} {1}
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do_test lock5-dotfile.3 {
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execsql COMMIT
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file exists test.db.lock
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} {0}
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do_test lock5-dotfile.4 {
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sqlite3 db2 test.db -vfs unix-dotfile
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execsql {
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INSERT INTO t1 VALUES('a', 'b');
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SELECT * FROM t1;
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} db2
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} {a b}
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do_test lock5-dotfile.5 {
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execsql {
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BEGIN;
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SELECT * FROM t1;
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} db2
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} {a b}
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do_test lock5-dotfile.6 {
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file exists test.db.lock
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} {1}
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do_test lock5-dotfile.7 {
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catchsql { SELECT * FROM t1; }
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} {1 {database is locked}}
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do_test lock5-dotfile.8 {
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execsql {
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SELECT * FROM t1;
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ROLLBACK;
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} db2
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} {a b}
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do_test lock5-dotfile.9 {
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catchsql { SELECT * FROM t1; }
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} {0 {a b}}
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do_test lock5-dotfile.10 {
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file exists test.db.lock
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} {0}
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do_test lock5-dotfile.X {
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db2 close
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execsql {BEGIN EXCLUSIVE}
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db close
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file exists test.db.lock
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} {0}
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#####################################################################
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forcedelete test.db
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if {0==[catch {sqlite3 db test.db -vfs unix-flock} msg]} {
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do_test lock5-flock.1 {
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sqlite3 db test.db -vfs unix-flock
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execsql {
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CREATE TABLE t1(a, b);
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BEGIN;
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INSERT INTO t1 VALUES(1, 2);
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}
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} {}
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# Make sure we are not accidentally using the dotfile locking scheme.
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do_test lock5-flock.2 {
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file exists test.db.lock
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} {0}
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do_test lock5-flock.3 {
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catch { sqlite3 db2 test.db -vfs unix-flock }
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catchsql { SELECT * FROM t1 } db2
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} {1 {database is locked}}
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do_test lock5-flock.4 {
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execsql COMMIT
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catchsql { SELECT * FROM t1 } db2
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} {0 {1 2}}
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do_test lock5-flock.5 {
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execsql BEGIN
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catchsql { SELECT * FROM t1 } db2
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} {0 {1 2}}
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do_test lock5-flock.6 {
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execsql {SELECT * FROM t1}
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catchsql { SELECT * FROM t1 } db2
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} {1 {database is locked}}
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do_test lock5-flock.7 {
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db close
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catchsql { SELECT * FROM t1 } db2
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} {0 {1 2}}
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do_test lock5-flock.8 {
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db2 close
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} {}
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do_test lock5-flock.9 {
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sqlite3 db test.db -vfs unix-flock
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execsql {
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SELECT * FROM t1
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}
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} {1 2}
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do_test lock5-flock.10 {
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sqlite3 db2 test.db -vfs unix-flock
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execsql {
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SELECT * FROM t1
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} db2
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} {1 2}
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do_test lock5-flock.10 {
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execsql {
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PRAGMA cache_size = 1;
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BEGIN;
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WITH s(i) AS (
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SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<10000
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)
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INSERT INTO t1 SELECT i, i+1 FROM s;
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}
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catchsql {
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SELECT * FROM t1
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} db2
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} {1 {database is locked}}
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if {[permutation]!="inmemory_journal"} {
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do_test lock5-flock.11 {
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forcecopy test.db test.db2
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forcecopy test.db-journal test.db2-journal
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db2 close
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sqlite3 db2 test.db2 -vfs unix-flock
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catchsql {
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SELECT * FROM t1
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} db2
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} {0 {1 2}}
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do_test lock5-flock.12 {
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file exists test.db2-journal
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} 0
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}
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db close
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db2 close
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}
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#####################################################################
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reset_db
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do_test lock5-none.1 {
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sqlite3 db test.db -vfs unix-none
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sqlite3 db2 test.db -vfs unix-none
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execsql { PRAGMA mmap_size = 0 } db2
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execsql {
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CREATE TABLE t1(a, b);
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INSERT INTO t1 VALUES(1, 2);
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BEGIN;
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INSERT INTO t1 VALUES(3, 4);
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}
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} {}
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do_test lock5-none.2 {
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execsql { SELECT * FROM t1 }
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} {1 2 3 4}
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do_test lock5-none.3 {
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execsql { SELECT * FROM t1; } db2
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} {1 2}
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do_test lock5-none.4 {
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execsql {
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BEGIN;
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SELECT * FROM t1;
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} db2
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} {1 2}
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do_test lock5-none.5 {
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execsql COMMIT
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execsql {SELECT * FROM t1} db2
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} {1 2}
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ifcapable memorymanage {
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if {[permutation]!="memsubsys1" && [permutation]!="memsubsys2"} {
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do_test lock5-none.6 {
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sqlite3_release_memory 1000000
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execsql {SELECT * FROM t1} db2
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} {1 2 3 4}
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}
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}
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do_test lock5-none.X {
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db close
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db2 close
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} {}
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ifcapable lock_proxy_pragmas {
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set env(SQLITE_FORCE_PROXY_LOCKING) $::using_proxy
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}
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#####################################################################
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reset_db
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if {[permutation]!="inmemory_journal"} {
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# 1. Create a large database using the unix-dotfile VFS
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# 2. Write a large transaction to the db, so that the cache spills, but do
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# not commit it.
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# 3. Make a copy of the database files on disk.
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# 4. Try to read from the copy using unix-dotfile VFS. This fails because
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# the dotfile still exists, so SQLite thinks the database is locked.
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# 5. Remove the dotfile.
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# 6. Try to read the db again. This time, the old transaction is rolled
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# back and the read permitted.
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#
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do_test 2.dotfile.1 {
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sqlite3 db test.db -vfs unix-dotfile
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execsql {
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PRAGMA cache_size = 10;
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CREATE TABLE t1(x, y, z);
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CREATE INDEX t1x ON t1(x);
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WITH s(i) AS (
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SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<1000
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)
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INSERT INTO t1 SELECT hex(randomblob(20)), hex(randomblob(500)), i FROM s;
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}
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} {}
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do_execsql_test 2.dotfile.2 {
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BEGIN;
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UPDATE t1 SET z=z+1, x=hex(randomblob(20));
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}
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do_test 2.dotfile.3 {
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list \
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[file exists test.db] \
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[file exists test.db-journal] \
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[file exists test.db.lock]
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} {1 1 1}
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do_test 2.dotfile.4 {
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forcecopy test.db test.db2
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forcecopy test.db-journal test.db2-journal
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file mkdir test.db2.lock
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sqlite3 db2 test.db2 -vfs unix-dotfile
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catchsql {
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SELECT count(*) FROM t1;
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} db2
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} {1 {database is locked}}
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do_test 2.dotfile.5 {
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file delete test.db2.lock
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execsql {
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PRAGMA integrity_check
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} db2
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} {ok}
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db2 close
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do_test 2.dotfile.6 {
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forcecopy test.db test.db2
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forcecopy test.db-journal test.db2-journal
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sqlite3 db2 file:test.db2?nolock=1 -vfs unix-dotfile -uri 1
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catchsql {
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SELECT count(*) FROM t1;
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} db2
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} {0 1000}
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}
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finish_test
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