- C Merge\srecent\senhancements\sfrom\strunk.
- D 2019-03-26T12:07:23.219
-C Use\sa\smutex-free\sPRNG\sfor\sthe\srandom()\sand\srandomblob()\sSQL\sfunctions\sand\sfor\nthe\srandomness\sused\sduring\scheckpoint\soperations.
-D 2017-09-09T08:03:28.579
-F Makefile.in c644bbe8ebe4aae82ad6783eae6b6beea4c727b99ff97568b847ced5e2ac7afb
++C Use\sthe\smutex-free\sPRNG\sin\sthis\sbranch,\ssince\sanybody\susing\sthis\sbranch\sis\nprobably\sinterested\sin\shigh\sconcurrency.
++D 2019-03-26T14:04:43.408
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--- /dev/null
- do_execsql_test 8.1 {
- PRAGMA journal_mode = wal;
- CREATE TABLE kv(k INTEGER PRIMARY KEY, v UNIQUE);
- INSERT INTO kv VALUES(NULL, randomblob(750));
- INSERT INTO kv SELECT NULL, randomblob(750) FROM kv;
- INSERT INTO kv SELECT NULL, randomblob(750) FROM kv;
- INSERT INTO kv SELECT NULL, randomblob(750) FROM kv;
- INSERT INTO kv SELECT NULL, randomblob(750) FROM kv;
- INSERT INTO kv SELECT NULL, randomblob(750) FROM kv;
- DELETE FROM kv WHERE rowid%2;
- PRAGMA freelist_count;
- } {wal 34}
+# 2015 July 26
+#
+# 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.
+#
+#***********************************************************************
+#
+# Miscellaneous tests for transactions started with BEGIN CONCURRENT.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/wal_common.tcl
+set ::testprefix concurrent2
+
+ifcapable !concurrent {
+ finish_test
+ return
+}
+
+do_multiclient_test tn {
+
+ do_test 1.$tn.1 {
+ sql1 {
+ PRAGMA journal_mode = wal;
+ CREATE TABLE t1(x);
+ CREATE TABLE t2(y);
+ }
+ } {wal}
+ do_test 1.$tn.5 { sql3 { PRAGMA integrity_check } } {ok}
+
+ # Test that an CONCURRENT transaction that allocates/frees no pages does
+ # not conflict with a transaction that does allocate pages.
+ do_test 1.$tn.2 {
+ sql1 {
+ BEGIN CONCURRENT;
+ INSERT INTO t1 VALUES(4);
+ }
+ sql2 {
+ INSERT INTO t2 VALUES(randomblob(1500));
+ }
+ sql1 {
+ COMMIT;
+ }
+ } {}
+ do_test 1.$tn.5 { sql3 { PRAGMA integrity_check } } {ok}
+
+ # But that an CONCURRENT transaction does conflict with a transaction
+ # that modifies the db schema.
+ do_test 1.$tn.3 {
+ sql1 {
+ BEGIN CONCURRENT;
+ INSERT INTO t1 VALUES(5);
+ }
+ sql2 {
+ CREATE TABLE t3(z);
+ }
+ list [catch { sql1 COMMIT } msg] $msg
+ } {1 {database is locked}}
+ do_test 1.$tn.5 { sql3 { PRAGMA integrity_check } } {ok}
+
+ # Test that an CONCURRENT transaction that allocates at least one page
+ # does not conflict with a transaction that allocates no pages.
+ do_test 1.$tn.4 {
+ sql1 {
+ ROLLBACK;
+ BEGIN CONCURRENT;
+ INSERT INTO t1 VALUES(randomblob(1500));
+ }
+ sql2 {
+ INSERT INTO t2 VALUES(8);
+ }
+ sql1 {
+ COMMIT;
+ }
+ } {}
+
+ do_test 1.$tn.5 { sql3 { PRAGMA integrity_check } } {ok}
+}
+
+do_multiclient_test tn {
+ do_test 2.$tn.1 {
+ sql1 {
+ PRAGMA journal_mode = wal;
+ CREATE TABLE t1(x UNIQUE);
+ CREATE TABLE t2(y UNIQUE);
+ }
+ } {wal}
+
+ do_test 2.$tn.2 {
+ sql1 {
+ BEGIN CONCURRENT;
+ INSERT INTO t1 VALUES(randomblob(1500));
+ }
+ sql2 {
+ INSERT INTO t2 VALUES(randomblob(1500));
+ }
+ sql1 COMMIT
+ } {}
+
+ do_test 2.$tn.3 { sql3 { PRAGMA integrity_check } } {ok}
+
+ do_test 2.$tn.4 {
+ sql1 {
+ BEGIN CONCURRENT;
+ DELETE FROM t1;
+ }
+ sql2 {
+ DELETE FROM t2;
+ }
+ sql1 COMMIT
+ } {}
+
+ do_test 2.$tn.5 { sql3 { PRAGMA integrity_check } } {ok}
+
+ do_test 2.$tn.6 {
+ sql1 {
+ INSERT INTO t1 VALUES(randomblob(1500));
+ INSERT INTO t1 VALUES(randomblob(1500));
+ INSERT INTO t2 VALUES(randomblob(1500));
+ DELETE FROM t1 WHERE rowid=1;
+ }
+
+ sql1 {
+ BEGIN CONCURRENT;
+ DELETE FROM t1 WHERE rowid=2;
+ }
+
+ sql2 {
+ DELETE FROM t2;
+ }
+
+ sql1 COMMIT
+ } {}
+
+ do_test 2.$tn.7 { sql3 { PRAGMA integrity_check } } {ok}
+}
+
+#-------------------------------------------------------------------------
+# When an CONCURRENT transaction is opened on a database, the nFree and
+# iTrunk header fields of the cached version of page 1 are both set
+# to 0. This allows an CONCURRENT transaction to use its own private
+# free-page-list, which is merged with the main database free-list when
+# the transaction is committed.
+#
+# The following tests check that nFree/iTrunk are correctly restored if
+# an CONCURRENT transaction is rolled back, and that savepoint rollbacks
+# that occur within CONCURRENT transactions do not incorrectly restore
+# these fields to their on-disk values.
+#
+reset_db
+do_execsql_test 3.0 {
+ PRAGMA journal_mode = wal;
+ CREATE TABLE t1(x, y);
+ INSERT INTO t1 VALUES(randomblob(1500), randomblob(1500));
+ DELETE FROM t1;
+} {wal}
+
+do_execsql_test 3.1 {
+ BEGIN CONCURRENT;
+ INSERT INTO t1 VALUES(1, 2);
+ ROLLBACK;
+}
+
+do_execsql_test 3.2 { PRAGMA integrity_check } {ok}
+do_execsql_test 3.3 { PRAGMA freelist_count } {2}
+
+do_execsql_test 3.4.1 {
+ BEGIN CONCURRENT;
+ PRAGMA freelist_count;
+} {2}
+do_execsql_test 3.4.2 {
+ SAVEPOINT xyz;
+ INSERT INTO t1 VALUES(randomblob(1500), NULL);
+ PRAGMA freelist_count;
+} {0}
+do_execsql_test 3.4.3 {
+ ROLLBACK TO xyz;
+} {}
+do_execsql_test 3.4.4 { PRAGMA freelist_count } {0}
+do_execsql_test 3.4.5 { COMMIT; PRAGMA freelist_count } {2}
+do_execsql_test 3.4.6 { PRAGMA integrity_check } {ok}
+
+do_execsql_test 3.5.1 {
+ BEGIN CONCURRENT;
+ UPDATE t1 SET x=randomblob(10) WHERE y=555;
+ PRAGMA freelist_count;
+} {0}
+do_execsql_test 3.5.2 {
+ ROLLBACK;
+ PRAGMA freelist_count;
+} {2}
+do_execsql_test 3.5.3 { PRAGMA integrity_check } {ok}
+
+#-------------------------------------------------------------------------
+# Test that nothing goes wrong if an CONCURRENT transaction allocates a
+# page at the end of the file, frees it within the same transaction, and
+# then has to move the same page to avoid a conflict on COMMIT.
+#
+do_multiclient_test tn {
+ do_test 4.$tn.1 {
+ sql1 {
+ PRAGMA journal_mode = wal;
+ CREATE TABLE t1(x);
+ CREATE TABLE t2(x);
+ }
+ } {wal}
+
+ do_test 4.$tn.2 {
+ sql1 {
+ BEGIN CONCURRENT;
+ INSERT INTO t1 VALUES(randomblob(1500));
+ INSERT INTO t1 VALUES(randomblob(1500));
+ DELETE FROM t1 WHERE rowid = 1;
+ }
+
+ sql2 {
+ INSERT INTO t2 VALUES(randomblob(1500));
+ INSERT INTO t2 VALUES(randomblob(1500));
+ INSERT INTO t2 VALUES(randomblob(1500));
+ INSERT INTO t2 VALUES(randomblob(1500));
+ DELETE FROM t2 WHERE rowid IN (1, 2);
+ }
+
+ sql1 COMMIT
+ } {}
+}
+
+#-------------------------------------------------------------------------
+#
+do_multiclient_test tn {
+ do_test 5.$tn.1 {
+ sql1 {
+ PRAGMA journal_mode = wal;
+ CREATE TABLE t1(x);
+ CREATE TABLE t2(x);
+ INSERT INTO t1 VALUES(randomblob(1500));
+ PRAGMA page_count;
+ }
+ } {wal 4}
+
+ do_test 5.$tn.2 {
+ sql1 {
+ BEGIN CONCURRENT;
+ INSERT INTO t2 VALUES(randomblob(1500));
+ PRAGMA page_count;
+ }
+ } {5}
+
+ do_test 5.$tn.3 {
+ sql2 {
+ DELETE FROM t1;
+ PRAGMA freelist_count;
+ PRAGMA page_count;
+ }
+ } {1 4}
+
+ do_test 5.$tn.4 { sql1 COMMIT } {}
+ do_test 5.$tn.5 { sql3 { PRAGMA integrity_check } } {ok}
+}
+
+#-------------------------------------------------------------------------
+#
+do_multiclient_test tn {
+ do_test 6.$tn.1 {
+ sql1 {
+ PRAGMA journal_mode = wal;
+ CREATE TABLE t1(x);
+ INSERT INTO t1 VALUES(randomblob(1500));
+ PRAGMA wal_checkpoint;
+ }
+ } {wal 0 5 5}
+
+ do_test 6.$tn.2 {
+ sql1 {
+ BEGIN CONCURRENT;
+ INSERT INTO t1 VALUES(randomblob(1500));
+ INSERT INTO t1 VALUES(randomblob(1500));
+ }
+ } {}
+
+ do_test 6.$tn.3 {
+ sql2 {
+ BEGIN;
+ INSERT INTO t1 VALUES(randomblob(1500));
+ INSERT INTO t1 VALUES(randomblob(1500));
+ COMMIT;
+ }
+ } {}
+
+ do_test 6.$tn.4 {
+ list [catch { sql1 COMMIT } msg] $msg
+ } {1 {database is locked}}
+ do_test 6.$tn.5 { sql3 { PRAGMA integrity_check } } {ok}
+ do_test 6.$tn.5 { sql3 { SELECT count(*) from t1 } } {3}
+}
+
+#-------------------------------------------------------------------------
+# Test that if a corrupt wal-index-header is encountered when attempting
+# to commit a CONCURRENT transaction, the transaction is not committed
+# (or rolled back) and that SQLITE_BUSY_SNAPSHOT is returned to the user.
+#
+catch { db close }
+forcedelete test.db
+testvfs tvfs
+sqlite3 db test.db -vfs tvfs
+do_execsql_test 7.1 {
+ PRAGMA journal_mode = wal;
+ BEGIN;
+ CREATE TABLE t1(a, b, PRIMARY KEY(a));
+ INSERT INTO t1 VALUES(1, 2);
+ INSERT INTO t1 VALUES(3, 4);
+ COMMIT;
+ BEGIN CONCURRENT;
+ INSERT INTO t1 VALUES(5, 6);
+ INSERT INTO t1 VALUES(7, 8);
+ SELECT * FROM t1;
+} {wal 1 2 3 4 5 6 7 8}
+
+# Corrupt the wal-index header
+incr_tvfs_hdr test.db 11 1
+
+do_catchsql_test 7.2.1 { COMMIT } {1 {database is locked}}
+do_test 7.2.2 { sqlite3_extended_errcode db } SQLITE_BUSY_SNAPSHOT
+
+do_execsql_test 7.3.1 {
+ SELECT * FROM t1;
+ ROLLBACK;
+} {1 2 3 4 5 6 7 8}
+do_execsql_test 7.3.2 {
+ SELECT * FROM t1;
+} {1 2 3 4}
+
+#-------------------------------------------------------------------------
+# Test that "PRAGMA integrity_check" works within a concurrent
+# transaction. Within a concurrent transaction, "PRAGMA integrity_check"
+# is unable to detect unused database pages, but can detect other types
+# of corruption.
+#
+reset_db
++do_test 8.1 {
++ execsql {
++ PRAGMA journal_mode = wal;
++ CREATE TABLE kv(k INTEGER PRIMARY KEY, v UNIQUE);
++ INSERT INTO kv VALUES(NULL, randomblob(750));
++ INSERT INTO kv SELECT NULL, randomblob(750) FROM kv;
++ INSERT INTO kv SELECT NULL, randomblob(750) FROM kv;
++ INSERT INTO kv SELECT NULL, randomblob(750) FROM kv;
++ INSERT INTO kv SELECT NULL, randomblob(750) FROM kv;
++ INSERT INTO kv SELECT NULL, randomblob(750) FROM kv;
++ DELETE FROM kv WHERE rowid%2;
++ }
++ set v [db one {PRAGMA freelist_count}]
++ expr $v==33 || $v==34
++} {1}
+do_execsql_test 8.2 { PRAGMA integrity_check } ok
+do_execsql_test 8.3 {
+ BEGIN CONCURRENT;
+ PRAGMA integrity_check;
+} {ok}
+do_execsql_test 8.4 {
+ INSERT INTO kv VALUES(1100, 1100);
+ PRAGMA integrity_check;
+} {ok}
+do_execsql_test 8.5 {
+ COMMIT;
+ PRAGMA integrity_check;
+} {ok}
+
+#-------------------------------------------------------------------------
+# Test that concurrent transactions do not allow foreign-key constraints
+# to be bypassed.
+#
+do_multiclient_test tn {
+ do_test 9.$tn.1 {
+ sql1 {
+ PRAGMA journal_mode = wal;
+ CREATE TABLE pp(i INTEGER PRIMARY KEY, j);
+ CREATE TABLE cc(a, b REFERENCES pp);
+
+ WITH seq(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM seq WHERE i<100)
+ INSERT INTO pp SELECT i, randomblob(1000) FROM seq;
+
+ PRAGMA foreign_keys = 1;
+ }
+ } {wal}
+
+
+ do_test 9.$tn.2.1 {
+ sql1 {
+ BEGIN CONCURRENT;
+ INSERT INTO cc VALUES(42, 42);
+ }
+ } {}
+ do_test 9.$tn.2.2 {
+ sql2 { DELETE FROM pp WHERE i=42 }
+ list [catch { sql1 COMMIT } msg] $msg
+ } {1 {database is locked}}
+ do_test 9.$tn.2.3 {
+ sql1 ROLLBACK
+ } {}
+
+ do_test 9.$tn.3.1 {
+ sql1 {
+ PRAGMA foreign_keys = 0;
+ BEGIN CONCURRENT;
+ INSERT INTO cc VALUES(43, 43);
+ }
+ } {}
+ do_test 9.$tn.3.2 {
+ sql2 { DELETE FROM pp WHERE i=43 }
+ list [catch { sql1 COMMIT } msg] $msg
+ } {0 {}}
+
+ do_test 9.$tn.4.1 {
+ sql1 {
+ PRAGMA foreign_keys = on;
+ BEGIN CONCURRENT;
+ INSERT INTO cc VALUES(44, 44);
+ }
+ } {}
+ do_test 9.$tn.4.2 {
+ sql2 { DELETE FROM pp WHERE i=1 }
+ list [catch { sql1 COMMIT } msg] $msg
+ } {0 {}}
+}
+
+#-------------------------------------------------------------------------
+# Test that even if a SELECT statement appears before all writes within
+# a CONCURRENT transaction, the pages it reads are still considered when
+# considering whether or not the transaction may be committed.
+#
+do_multiclient_test tn {
+ do_test 10.$tn.1.1 {
+ sql1 {
+ PRAGMA journal_mode = wal;
+ CREATE TABLE t1(a);
+ CREATE TABLE t2(b);
+ CREATE TABLE t3(c);
+ INSERT INTO t1 VALUES(1), (2), (3);
+ INSERT INTO t2 VALUES(1), (2), (3);
+ INSERT INTO t3 VALUES(1), (2), (3);
+ }
+ } {wal}
+
+ do_test 10.$tn.1.2 {
+ sql1 {
+ BEGIN CONCURRENT;
+ SELECT * FROM t1;
+ INSERT INTO t2 VALUES(4);
+ }
+ } {1 2 3}
+
+ do_test 10.$tn.1.3 {
+ sql2 { INSERT INTO t1 VALUES(4) }
+ list [catch {sql1 COMMIT} msg] $msg
+ } {1 {database is locked}}
+ sql1 ROLLBACK
+
+ # In this case, because the "SELECT * FROM t1" is first stepped before
+ # the "BEGIN CONCURRENT", the pages it reads are not recorded by the
+ # pager object. And so the transaction can be committed. Technically
+ # this behaviour (the effect of an ongoing SELECT on a BEGIN CONCURRENT
+ # transacation) is undefined.
+ #
+ do_test 10.$tn.2.1 {
+ code1 {
+ set ::stmt [sqlite3_prepare db "SELECT * FROM t1" -1 dummy]
+ sqlite3_step $::stmt
+ }
+ } {SQLITE_ROW}
+ do_test 10.$tn.2.2 {
+ sql1 {
+ BEGIN CONCURRENT;
+ INSERT INTO t2 VALUES(4);
+ }
+ code1 {
+ set res [list]
+ lappend res [sqlite3_column_int $::stmt 0]
+ while {[sqlite3_step $::stmt]=="SQLITE_ROW"} {
+ lappend res [sqlite3_column_int $::stmt 0]
+ }
+ sqlite3_finalize $::stmt
+ set res
+ }
+ } {1 2 3 4}
+ do_test 10.$tn.2.3 {
+ sql2 { INSERT INTO t1 VALUES(5) }
+ sql1 COMMIT
+ } {}
+
+ # More tests surrounding long-lived prepared statements and concurrent
+ # transactions.
+ do_test 10.$tn.3.1 {
+ sql1 {
+ BEGIN CONCURRENT;
+ SELECT * FROM t1;
+ COMMIT;
+ }
+ sql1 {
+ BEGIN CONCURRENT;
+ INSERT INTO t2 VALUES(5);
+ }
+ sql2 {
+ INSERT INTO t1 VALUES(5);
+ }
+ sql1 COMMIT
+ sql3 {
+ SELECT * FROM t2;
+ }
+ } {1 2 3 4 5}
+ do_test 10.$tn.3.2 {
+ sql1 {
+ BEGIN CONCURRENT;
+ SELECT * FROM t1;
+ ROLLBACK;
+ }
+ sql1 {
+ BEGIN CONCURRENT;
+ INSERT INTO t2 VALUES(6);
+ }
+ sql2 {
+ INSERT INTO t1 VALUES(6);
+ }
+ sql1 COMMIT
+ sql3 { SELECT * FROM t2 }
+ } {1 2 3 4 5 6}
+ do_test 10.$tn.3.3 {
+ sql1 { BEGIN CONCURRENT }
+ code1 {
+ set ::stmt [sqlite3_prepare db "SELECT * FROM t1" -1 dummy]
+ sqlite3_step $::stmt
+ }
+ sql1 {
+ INSERT INTO t2 VALUES(7);
+ SELECT * FROM t3;
+ ROLLBACK;
+ BEGIN CONCURRENT;
+ }
+ sql2 { INSERT INTO t3 VALUES(5) }
+ code1 { sqlite3_finalize $::stmt }
+ sql1 {
+ INSERT INTO t2 VALUES(8);
+ COMMIT;
+ }
+ } {}
+}
+
+do_multiclient_test tn {
+ do_test 11.$tn.1 {
+ sql1 {
+ PRAGMA journal_mode = wal;
+ CREATE TABLE t1(a);
+ }
+ } {wal}
+
+ do_test 11.$tn.2 {
+ code1 { sqlite3_wal_info db main }
+ } {0 2}
+
+ do_test 11.$tn.3 {
+ sql1 { INSERT INTO t1 VALUES(1) }
+ code1 { sqlite3_wal_info db main }
+ } {2 3}
+
+ do_test 11.$tn.4 {
+ sql2 { INSERT INTO t1 VALUES(2) }
+ code2 { sqlite3_wal_info db2 main }
+ } {3 4}
+
+ do_test 11.$tn.5 {
+ sql1 { PRAGMA wal_checkpoint }
+ sql2 { INSERT INTO t1 VALUES(3) }
+ code2 { sqlite3_wal_info db2 main }
+ } {0 1}
+}
+
+reset_db
+do_execsql_test 12.0 {
+ PRAGMA journal_mode = wal;
+ CREATE TABLE tx(a INTEGER PRIMARY KEY, b);
+} {wal}
+do_test 12.1 {
+ for {set i 0} {$i < 50} {incr i} {
+ execsql {
+ BEGIN CONCURRENT;
+ INSERT INTO tx(b) VALUES( randomblob( 1200 ) );
+ COMMIT;
+ }
+ }
+ execsql { PRAGMA page_size }
+} {1024}
+do_execsql_test 12.2 {
+ DELETE FROM tx;
+}
+do_test 12.3 {
+ for {set i 0} {$i < 50} {incr i} {
+ execsql {
+ BEGIN CONCURRENT;
+ INSERT INTO tx(b) VALUES( randomblob( 1200 ) );
+ COMMIT;
+ }
+ }
+ execsql { PRAGMA page_size }
+} {1024}
+do_execsql_test 12.4 {
+ DELETE FROM tx;
+}
+do_test 12.5 {
+ execsql { BEGIN CONCURRENT }
+ for {set i 0} {$i < 5000} {incr i} {
+ execsql {
+ INSERT INTO tx(b) VALUES( randomblob( 1200 ) );
+ }
+ }
+ execsql { COMMIT }
+ execsql { PRAGMA page_size }
+} {1024}
+
+
+finish_test
projects / thirdparty / sqlite.git / commitdiff
