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Ensure that "PRAGMA wal_checkpoint = TRUNCATE|FULL|RESTART" block on other connections and truncate the database file as required even if the entire wal file has already been checkpointed.

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FossilOrigin-Name: 53429689d4fcf472edbc89cc50b5e69ba3270634
This commit is contained in:
dan
2015-01-29 19:12:12 +00:00
parent 6267920b09
commit 976b003344
5 changed files with 185 additions and 100 deletions
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81
test/wal5.test
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@ -390,6 +390,87 @@ foreach {testprefix do_wal_checkpoint} {
} [wal_file_size 2 1024]
}
# Test that FULL, RESTART and TRUNCATE callbacks block on other clients
# and truncate the wal file as required even if the entire wal file has
# already been checkpointed when they are invoked.
#
do_multiclient_test tn {
code1 $do_wal_checkpoint
code2 $do_wal_checkpoint
code3 $do_wal_checkpoint
do_test 5.$tn.1 {
sql1 {
PRAGMA page_size = 1024;
PRAGMA auto_vacuum = 0;
PRAGMA journal_mode = WAL;
PRAGMA synchronous = normal;
CREATE TABLE t1(x, y);
CREATE INDEX i1 ON t1(x, y);
INSERT INTO t1 VALUES(1, 2);
INSERT INTO t1 VALUES(3, 4);
INSERT INTO t1 VALUES(5, 6);
}
file size test.db-wal
} [wal_file_size 10 1024]
do_test 5.$tn.2 {
sql2 { BEGIN; SELECT * FROM t1 }
} {1 2 3 4 5 6}
do_test 5.$tn.3 { do_wal_checkpoint db -mode passive } {0 10 10}
do_test 5.$tn.4 {
sql3 { BEGIN; INSERT INTO t1 VALUES(7, 8); }
} {}
do_test 5.$tn.5 { do_wal_checkpoint db -mode passive } {0 10 10}
do_test 5.$tn.6 { do_wal_checkpoint db -mode full } {1 10 10}
do_test 5.$tn.7 { sql3 { ROLLBACK } } {}
do_test 5.$tn.8 { do_wal_checkpoint db -mode full } {0 10 10}
do_test 5.$tn.9 { do_wal_checkpoint db -mode truncate } {1 10 10}
do_test 5.$tn.10 {
file size test.db-wal
} [wal_file_size 10 1024]
proc xBusyHandler {n} { sql2 { COMMIT } ; return 0 }
db busy xBusyHandler
do_test 5.$tn.11 { do_wal_checkpoint db -mode truncate } {0 0 0}
do_test 5.$tn.12 { file size test.db-wal } 0
do_test 5.$tn.13 {
sql1 {
INSERT INTO t1 VALUES(7, 8);
INSERT INTO t1 VALUES(9, 10);
SELECT * FROM t1;
}
} {1 2 3 4 5 6 7 8 9 10}
do_test 5.$tn.14 {
sql2 { BEGIN; SELECT * FROM t1 }
} {1 2 3 4 5 6 7 8 9 10}
proc xBusyHandler {n} { return 1 }
do_test 5.$tn.14 { do_wal_checkpoint db -mode truncate } {1 4 4}
do_test 5.$tn.15 { file size test.db-wal } [wal_file_size 4 1024]
do_test 5.$tn.16 { do_wal_checkpoint db -mode restart } {1 4 4}
proc xBusyHandler {n} { sql2 { COMMIT } ; return 0 }
db busy xBusyHandler
do_test 5.$tn.17 { do_wal_checkpoint db -mode restart } {0 4 4}
do_test 5.$tn.18 { file size test.db-wal } [wal_file_size 4 1024]
do_test 5.$tn.19 { do_wal_checkpoint db -mode truncate } {0 0 0}
do_test 5.$tn.20 { file size test.db-wal } 0
}
}