1318 lines
36 KiB
Plaintext
1318 lines
36 KiB
Plaintext
# 2010 May 5
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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 file is testing the operation of the library in
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# "PRAGMA journal_mode=WAL" mode.
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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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source $testdir/lock_common.tcl
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source $testdir/malloc_common.tcl
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source $testdir/wal_common.tcl
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set testprefix wal2
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ifcapable !wal {finish_test ; return }
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set sqlite_sync_count 0
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proc cond_incr_sync_count {adj} {
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global sqlite_sync_count
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if {$::tcl_platform(platform) == "windows"} {
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incr sqlite_sync_count $adj
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} {
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ifcapable !dirsync {
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incr sqlite_sync_count $adj
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}
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}
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}
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proc set_tvfs_hdr {file args} {
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# Set $nHdr to the number of bytes in the wal-index header:
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set nHdr 48
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set nInt [expr {$nHdr/4}]
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if {[llength $args]>2} {
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error {wrong # args: should be "set_tvfs_hdr fileName ?val1? ?val2?"}
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}
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set blob [tvfs shm $file]
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if {$::tcl_platform(byteOrder)=="bigEndian"} {set fmt I} {set fmt i}
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if {[llength $args]} {
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set ia [lindex $args 0]
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set ib $ia
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if {[llength $args]==2} {
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set ib [lindex $args 1]
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}
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binary scan $blob a[expr $nHdr*2]a* dummy tail
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set blob [binary format ${fmt}${nInt}${fmt}${nInt}a* $ia $ib $tail]
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tvfs shm $file $blob
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}
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binary scan $blob ${fmt}${nInt} ints
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return $ints
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}
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proc incr_tvfs_hdr {file idx incrval} {
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set ints [set_tvfs_hdr $file]
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set v [lindex $ints $idx]
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incr v $incrval
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lset ints $idx $v
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set_tvfs_hdr $file $ints
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}
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#-------------------------------------------------------------------------
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# Test case wal2-1.*:
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#
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# Set up a small database containing a single table. The database is not
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# checkpointed during the test - all content resides in the log file.
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#
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# Two connections are established to the database file - a writer ([db])
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# and a reader ([db2]). For each of the 8 integer fields in the wal-index
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# header (6 fields and 2 checksum values), do the following:
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#
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# 1. Modify the database using the writer.
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#
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# 2. Attempt to read the database using the reader. Before the reader
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# has a chance to snapshot the wal-index header, increment one
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# of the integer fields (so that the reader ends up with a corrupted
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# header).
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#
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# 3. Check that the reader recovers the wal-index and reads the correct
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# database content.
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#
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do_test wal2-1.0 {
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proc tvfs_cb {method filename args} {
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set ::filename $filename
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return SQLITE_OK
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}
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testvfs tvfs
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tvfs script tvfs_cb
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tvfs filter xShmOpen
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sqlite3 db test.db -vfs tvfs
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sqlite3 db2 test.db -vfs tvfs
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execsql {
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PRAGMA journal_mode = WAL;
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CREATE TABLE t1(a);
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} db2
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execsql {
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INSERT INTO t1 VALUES(1);
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INSERT INTO t1 VALUES(2);
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INSERT INTO t1 VALUES(3);
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INSERT INTO t1 VALUES(4);
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SELECT count(a), sum(a) FROM t1;
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}
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} {4 10}
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do_test wal2-1.1 {
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execsql { SELECT count(a), sum(a) FROM t1 } db2
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} {4 10}
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set RECOVER [list \
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{0 1 lock exclusive} {1 7 lock exclusive} \
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{1 7 unlock exclusive} {0 1 unlock exclusive} \
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]
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set READ [list \
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{4 1 lock shared} {4 1 unlock shared} \
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]
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set INITSLOT [list \
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{4 1 lock exclusive} {4 1 unlock exclusive} \
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]
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foreach {tn iInsert res wal_index_hdr_mod wal_locks} "
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2 5 {5 15} 0 {$RECOVER $READ}
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3 6 {6 21} 1 {$RECOVER $READ}
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4 7 {7 28} 2 {$RECOVER $READ}
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5 8 {8 36} 3 {$RECOVER $READ}
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6 9 {9 45} 4 {$RECOVER $READ}
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7 10 {10 55} 5 {$RECOVER $READ}
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8 11 {11 66} 6 {$RECOVER $READ}
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9 12 {12 78} 7 {$RECOVER $READ}
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10 13 {13 91} 8 {$RECOVER $READ}
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11 14 {14 105} 9 {$RECOVER $READ}
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12 15 {15 120} -1 {$INITSLOT $READ}
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" {
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do_test wal2-1.$tn.1 {
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execsql { INSERT INTO t1 VALUES($iInsert) }
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set ::locks [list]
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proc tvfs_cb {method args} {
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lappend ::locks [lindex $args 2]
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return SQLITE_OK
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}
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tvfs filter xShmLock
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if {$::wal_index_hdr_mod >= 0} {
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incr_tvfs_hdr $::filename $::wal_index_hdr_mod 1
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}
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execsql { SELECT count(a), sum(a) FROM t1 } db2
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} $res
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do_test wal2-1.$tn.2 {
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set ::locks
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} $wal_locks
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}
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db close
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db2 close
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tvfs delete
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forcedelete test.db test.db-wal test.db-journal
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#-------------------------------------------------------------------------
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# This test case is very similar to the previous one, except, after
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# the reader reads the corrupt wal-index header, but before it has
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# a chance to re-read it under the cover of the RECOVER lock, the
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# wal-index header is replaced with a valid, but out-of-date, header.
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#
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# Because the header checksum looks Ok, the reader does not run recovery,
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# it simply drops back to a READ lock and proceeds. But because the
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# header is out-of-date, the reader reads the out-of-date snapshot.
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#
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# After this, the header is corrupted again and the reader is allowed
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# to run recovery. This time, it sees an up-to-date snapshot of the
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# database file.
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#
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set WRITER [list 0 1 lock exclusive]
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set LOCKS [list \
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{0 1 lock exclusive} {0 1 unlock exclusive} \
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{4 1 lock exclusive} {4 1 unlock exclusive} \
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{4 1 lock shared} {4 1 unlock shared} \
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]
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do_test wal2-2.0 {
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testvfs tvfs
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tvfs script tvfs_cb
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tvfs filter xShmOpen
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proc tvfs_cb {method args} {
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set ::filename [lindex $args 0]
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return SQLITE_OK
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}
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sqlite3 db test.db -vfs tvfs
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sqlite3 db2 test.db -vfs tvfs
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execsql {
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PRAGMA journal_mode = WAL;
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CREATE TABLE t1(a);
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} db2
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execsql {
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INSERT INTO t1 VALUES(1);
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INSERT INTO t1 VALUES(2);
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INSERT INTO t1 VALUES(3);
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INSERT INTO t1 VALUES(4);
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SELECT count(a), sum(a) FROM t1;
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}
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} {4 10}
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do_test wal2-2.1 {
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execsql { SELECT count(a), sum(a) FROM t1 } db2
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} {4 10}
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foreach {tn iInsert res0 res1 wal_index_hdr_mod} {
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2 5 {4 10} {5 15} 0
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3 6 {5 15} {6 21} 1
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4 7 {6 21} {7 28} 2
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5 8 {7 28} {8 36} 3
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6 9 {8 36} {9 45} 4
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7 10 {9 45} {10 55} 5
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8 11 {10 55} {11 66} 6
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9 12 {11 66} {12 78} 7
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} {
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tvfs filter xShmLock
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do_test wal2-2.$tn.1 {
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set oldhdr [set_tvfs_hdr $::filename]
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execsql { INSERT INTO t1 VALUES($iInsert) }
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execsql { SELECT count(a), sum(a) FROM t1 }
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} $res1
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do_test wal2-2.$tn.2 {
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set ::locks [list]
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proc tvfs_cb {method args} {
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set lock [lindex $args 2]
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lappend ::locks $lock
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if {$lock == $::WRITER} {
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set_tvfs_hdr $::filename $::oldhdr
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}
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return SQLITE_OK
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}
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if {$::wal_index_hdr_mod >= 0} {
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incr_tvfs_hdr $::filename $::wal_index_hdr_mod 1
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}
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execsql { SELECT count(a), sum(a) FROM t1 } db2
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} $res0
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do_test wal2-2.$tn.3 {
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set ::locks
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} $LOCKS
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do_test wal2-2.$tn.4 {
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set ::locks [list]
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proc tvfs_cb {method args} {
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set lock [lindex $args 2]
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lappend ::locks $lock
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return SQLITE_OK
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}
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if {$::wal_index_hdr_mod >= 0} {
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incr_tvfs_hdr $::filename $::wal_index_hdr_mod 1
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}
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execsql { SELECT count(a), sum(a) FROM t1 } db2
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} $res1
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}
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db close
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db2 close
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tvfs delete
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forcedelete test.db test.db-wal test.db-journal
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if 0 {
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#-------------------------------------------------------------------------
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# This test case - wal2-3.* - tests the response of the library to an
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# SQLITE_BUSY when attempting to obtain a READ or RECOVER lock.
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#
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# wal2-3.0 - 2: SQLITE_BUSY when obtaining a READ lock
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# wal2-3.3 - 6: SQLITE_BUSY when obtaining a RECOVER lock
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#
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do_test wal2-3.0 {
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proc tvfs_cb {method args} {
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if {$method == "xShmLock"} {
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if {[info exists ::locked]} { return SQLITE_BUSY }
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}
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return SQLITE_OK
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}
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proc busyhandler x {
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if {$x>3} { unset -nocomplain ::locked }
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return 0
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}
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testvfs tvfs
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tvfs script tvfs_cb
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sqlite3 db test.db -vfs tvfs
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db busy busyhandler
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execsql {
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PRAGMA journal_mode = WAL;
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CREATE TABLE t1(a);
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INSERT INTO t1 VALUES(1);
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INSERT INTO t1 VALUES(2);
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INSERT INTO t1 VALUES(3);
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INSERT INTO t1 VALUES(4);
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}
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set ::locked 1
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info exists ::locked
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} {1}
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do_test wal2-3.1 {
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execsql { SELECT count(a), sum(a) FROM t1 }
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} {4 10}
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do_test wal2-3.2 {
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info exists ::locked
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} {0}
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do_test wal2-3.3 {
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proc tvfs_cb {method args} {
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if {$method == "xShmLock"} {
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if {[info exists ::sabotage]} {
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unset -nocomplain ::sabotage
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incr_tvfs_hdr [lindex $args 0] 1 1
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}
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if {[info exists ::locked] && [lindex $args 2] == "RECOVER"} {
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return SQLITE_BUSY
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}
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}
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return SQLITE_OK
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}
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set ::sabotage 1
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set ::locked 1
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list [info exists ::sabotage] [info exists ::locked]
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} {1 1}
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do_test wal2-3.4 {
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execsql { SELECT count(a), sum(a) FROM t1 }
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} {4 10}
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do_test wal2-3.5 {
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list [info exists ::sabotage] [info exists ::locked]
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} {0 0}
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db close
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tvfs delete
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forcedelete test.db test.db-wal test.db-journal
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}
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#-------------------------------------------------------------------------
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# Test that a database connection using a VFS that does not support the
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# xShmXXX interfaces cannot open a WAL database.
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#
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do_test wal2-4.1 {
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sqlite3 db test.db
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execsql {
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PRAGMA auto_vacuum = 0;
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PRAGMA journal_mode = WAL;
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CREATE TABLE data(x);
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INSERT INTO data VALUES('need xShmOpen to see this');
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PRAGMA wal_checkpoint;
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}
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# Three pages in the WAL file at this point: One copy of page 1 and two
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# of the root page for table "data".
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} {wal 0 3 3}
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do_test wal2-4.2 {
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db close
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testvfs tvfs -noshm 1
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sqlite3 db test.db -vfs tvfs
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catchsql { SELECT * FROM data }
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} {1 {unable to open database file}}
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do_test wal2-4.3 {
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db close
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testvfs tvfs
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sqlite3 db test.db -vfs tvfs
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catchsql { SELECT * FROM data }
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} {0 {{need xShmOpen to see this}}}
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db close
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tvfs delete
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#-------------------------------------------------------------------------
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# Test that if a database connection is forced to run recovery before it
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# can perform a checkpoint, it does not transition into RECOVER state.
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#
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# UPDATE: This has now changed. When running a checkpoint, if recovery is
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# required the client grabs all exclusive locks (just as it would for a
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# recovery performed as a pre-cursor to a normal database transaction).
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#
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set expected_locks [list]
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lappend expected_locks {1 1 lock exclusive} ;# Lock checkpoint
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lappend expected_locks {0 1 lock exclusive} ;# Lock writer
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lappend expected_locks {2 6 lock exclusive} ;# Lock recovery & all aReadMark[]
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lappend expected_locks {2 6 unlock exclusive} ;# Unlock recovery & aReadMark[]
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lappend expected_locks {0 1 unlock exclusive} ;# Unlock writer
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lappend expected_locks {3 1 lock exclusive} ;# Lock aReadMark[0]
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lappend expected_locks {3 1 unlock exclusive} ;# Unlock aReadMark[0]
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lappend expected_locks {1 1 unlock exclusive} ;# Unlock checkpoint
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do_test wal2-5.1 {
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proc tvfs_cb {method args} {
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set ::shm_file [lindex $args 0]
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if {$method == "xShmLock"} { lappend ::locks [lindex $args 2] }
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return $::tvfs_cb_return
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}
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set tvfs_cb_return SQLITE_OK
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testvfs tvfs
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tvfs script tvfs_cb
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sqlite3 db test.db -vfs tvfs
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execsql {
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PRAGMA journal_mode = WAL;
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CREATE TABLE x(y);
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INSERT INTO x VALUES(1);
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}
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incr_tvfs_hdr $::shm_file 1 1
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set ::locks [list]
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execsql { PRAGMA wal_checkpoint }
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set ::locks
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} $expected_locks
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db close
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tvfs delete
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#-------------------------------------------------------------------------
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# This block, test cases wal2-6.*, tests the operation of WAL with
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# "PRAGMA locking_mode=EXCLUSIVE" set.
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#
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# wal2-6.1.*: Changing to WAL mode before setting locking_mode=exclusive.
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#
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# wal2-6.2.*: Changing to WAL mode after setting locking_mode=exclusive.
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#
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# wal2-6.3.*: Changing back to rollback mode from WAL mode after setting
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# locking_mode=exclusive.
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#
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# wal2-6.4.*: Check that xShmLock calls are omitted in exclusive locking
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# mode.
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#
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# wal2-6.5.*:
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#
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# wal2-6.6.*: Check that if the xShmLock() to reaquire a WAL read-lock when
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# exiting exclusive mode fails (i.e. SQLITE_IOERR), then the
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# connection silently remains in exclusive mode.
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#
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do_test wal2-6.1.1 {
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forcedelete test.db test.db-wal test.db-journal
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sqlite3 db test.db
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execsql {
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Pragma Journal_Mode = Wal;
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}
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} {wal}
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do_test wal2-6.1.2 {
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execsql { PRAGMA lock_status }
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} {main unlocked temp closed}
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do_test wal2-6.1.3 {
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execsql {
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SELECT * FROM sqlite_master;
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Pragma Locking_Mode = Exclusive;
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}
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execsql {
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BEGIN;
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CREATE TABLE t1(a, b);
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INSERT INTO t1 VALUES(1, 2);
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COMMIT;
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PRAGMA lock_status;
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}
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} {main exclusive temp closed}
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do_test wal2-6.1.4 {
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execsql {
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PRAGMA locking_mode = normal;
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PRAGMA lock_status;
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}
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} {normal main exclusive temp closed}
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do_test wal2-6.1.5 {
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execsql {
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SELECT * FROM t1;
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PRAGMA lock_status;
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}
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} {1 2 main shared temp closed}
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do_test wal2-6.1.6 {
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execsql {
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INSERT INTO t1 VALUES(3, 4);
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PRAGMA lock_status;
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}
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} {main shared temp closed}
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db close
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do_test wal2-6.2.1 {
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forcedelete test.db test.db-wal test.db-journal
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sqlite3 db test.db
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execsql {
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Pragma Locking_Mode = Exclusive;
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Pragma Journal_Mode = Wal;
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Pragma Lock_Status;
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}
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} {exclusive wal main exclusive temp closed}
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do_test wal2-6.2.2 {
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execsql {
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BEGIN;
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CREATE TABLE t1(a, b);
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INSERT INTO t1 VALUES(1, 2);
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COMMIT;
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Pragma loCK_STATus;
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}
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} {main exclusive temp closed}
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do_test wal2-6.2.3 {
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db close
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sqlite3 db test.db
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execsql { SELECT * FROM sqlite_master }
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execsql { PRAGMA LOCKING_MODE = EXCLUSIVE }
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} {exclusive}
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do_test wal2-6.2.4 {
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execsql {
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SELECT * FROM t1;
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pragma lock_status;
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}
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} {1 2 main shared temp closed}
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do_test wal2-6.2.5 {
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execsql {
|
|
INSERT INTO t1 VALUES(3, 4);
|
|
pragma lock_status;
|
|
}
|
|
} {main exclusive temp closed}
|
|
do_test wal2-6.2.6 {
|
|
execsql {
|
|
PRAGMA locking_mode = NORMAL;
|
|
pragma lock_status;
|
|
}
|
|
} {normal main exclusive temp closed}
|
|
do_test wal2-6.2.7 {
|
|
execsql {
|
|
BEGIN IMMEDIATE; COMMIT;
|
|
pragma lock_status;
|
|
}
|
|
} {main shared temp closed}
|
|
do_test wal2-6.2.8 {
|
|
execsql {
|
|
PRAGMA locking_mode = EXCLUSIVE;
|
|
BEGIN IMMEDIATE; COMMIT;
|
|
PRAGMA locking_mode = NORMAL;
|
|
}
|
|
execsql {
|
|
SELECT * FROM t1;
|
|
pragma lock_status;
|
|
}
|
|
} {1 2 3 4 main shared temp closed}
|
|
do_test wal2-6.2.9 {
|
|
execsql {
|
|
INSERT INTO t1 VALUES(5, 6);
|
|
SELECT * FROM t1;
|
|
pragma lock_status;
|
|
}
|
|
} {1 2 3 4 5 6 main shared temp closed}
|
|
db close
|
|
|
|
do_test wal2-6.3.1 {
|
|
forcedelete test.db test.db-wal test.db-journal
|
|
sqlite3 db test.db
|
|
execsql {
|
|
PRAGMA journal_mode = WAL;
|
|
PRAGMA locking_mode = exclusive;
|
|
BEGIN;
|
|
CREATE TABLE t1(x);
|
|
INSERT INTO t1 VALUES('Chico');
|
|
INSERT INTO t1 VALUES('Harpo');
|
|
COMMIT;
|
|
}
|
|
list [file exists test.db-wal] [file exists test.db-journal]
|
|
} {1 0}
|
|
do_test wal2-6.3.2 {
|
|
execsql { PRAGMA journal_mode = DELETE }
|
|
file exists test.db-wal
|
|
} {0}
|
|
do_test wal2-6.3.3 {
|
|
execsql { PRAGMA lock_status }
|
|
} {main exclusive temp closed}
|
|
do_test wal2-6.3.4 {
|
|
execsql {
|
|
BEGIN;
|
|
INSERT INTO t1 VALUES('Groucho');
|
|
}
|
|
list [file exists test.db-wal] [file exists test.db-journal]
|
|
} {0 1}
|
|
do_test wal2-6.3.5 {
|
|
execsql { PRAGMA lock_status }
|
|
} {main exclusive temp closed}
|
|
do_test wal2-6.3.6 {
|
|
execsql { COMMIT }
|
|
list [file exists test.db-wal] [file exists test.db-journal]
|
|
} {0 1}
|
|
do_test wal2-6.3.7 {
|
|
execsql { PRAGMA lock_status }
|
|
} {main exclusive temp closed}
|
|
db close
|
|
|
|
|
|
# This test - wal2-6.4.* - uses a single database connection and the
|
|
# [testvfs] instrumentation to test that xShmLock() is being called
|
|
# as expected when a WAL database is used with locking_mode=exclusive.
|
|
#
|
|
do_test wal2-6.4.1 {
|
|
forcedelete test.db test.db-wal test.db-journal
|
|
proc tvfs_cb {method args} {
|
|
set ::shm_file [lindex $args 0]
|
|
if {$method == "xShmLock"} { lappend ::locks [lindex $args 2] }
|
|
return "SQLITE_OK"
|
|
}
|
|
testvfs tvfs
|
|
tvfs script tvfs_cb
|
|
sqlite3 db test.db -vfs tvfs
|
|
set {} {}
|
|
} {}
|
|
|
|
set RECOVERY {
|
|
{0 1 lock exclusive} {1 7 lock exclusive}
|
|
{1 7 unlock exclusive} {0 1 unlock exclusive}
|
|
}
|
|
set READMARK0_READ {
|
|
{3 1 lock shared} {3 1 unlock shared}
|
|
}
|
|
set READMARK0_WRITE {
|
|
{3 1 lock shared}
|
|
{0 1 lock exclusive} {3 1 unlock shared}
|
|
{4 1 lock exclusive} {4 1 unlock exclusive} {4 1 lock shared}
|
|
{0 1 unlock exclusive} {4 1 unlock shared}
|
|
}
|
|
set READMARK1_SET {
|
|
{4 1 lock exclusive} {4 1 unlock exclusive}
|
|
}
|
|
set READMARK1_READ {
|
|
{4 1 lock shared} {4 1 unlock shared}
|
|
}
|
|
set READMARK1_WRITE {
|
|
{4 1 lock shared}
|
|
{0 1 lock exclusive} {0 1 unlock exclusive}
|
|
{4 1 unlock shared}
|
|
}
|
|
|
|
foreach {tn sql res expected_locks} {
|
|
2 {
|
|
PRAGMA auto_vacuum = 0;
|
|
PRAGMA journal_mode = WAL;
|
|
BEGIN;
|
|
CREATE TABLE t1(x);
|
|
INSERT INTO t1 VALUES('Leonard');
|
|
INSERT INTO t1 VALUES('Arthur');
|
|
COMMIT;
|
|
} {wal} {
|
|
$RECOVERY
|
|
$READMARK0_WRITE
|
|
}
|
|
|
|
3 {
|
|
# This test should do the READMARK1_SET locking to populate the
|
|
# aReadMark[1] slot with the current mxFrame value. Followed by
|
|
# READMARK1_READ to read the database.
|
|
#
|
|
SELECT * FROM t1
|
|
} {Leonard Arthur} {
|
|
$READMARK1_SET
|
|
$READMARK1_READ
|
|
}
|
|
|
|
4 {
|
|
# aReadMark[1] is already set to mxFrame. So just READMARK1_READ
|
|
# this time, not READMARK1_SET.
|
|
#
|
|
SELECT * FROM t1 ORDER BY x
|
|
} {Arthur Leonard} {
|
|
$READMARK1_READ
|
|
}
|
|
|
|
5 {
|
|
PRAGMA locking_mode = exclusive
|
|
} {exclusive} { }
|
|
|
|
6 {
|
|
INSERT INTO t1 VALUES('Julius Henry');
|
|
SELECT * FROM t1;
|
|
} {Leonard Arthur {Julius Henry}} {
|
|
$READMARK1_READ
|
|
}
|
|
|
|
7 {
|
|
INSERT INTO t1 VALUES('Karl');
|
|
SELECT * FROM t1;
|
|
} {Leonard Arthur {Julius Henry} Karl} { }
|
|
|
|
8 {
|
|
PRAGMA locking_mode = normal
|
|
} {normal} { }
|
|
|
|
9 {
|
|
SELECT * FROM t1 ORDER BY x
|
|
} {Arthur {Julius Henry} Karl Leonard} $READMARK1_READ
|
|
|
|
10 { DELETE FROM t1 } {} $READMARK1_WRITE
|
|
|
|
11 {
|
|
SELECT * FROM t1
|
|
} {} {
|
|
$READMARK1_SET
|
|
$READMARK1_READ
|
|
}
|
|
} {
|
|
|
|
set L [list]
|
|
foreach el [subst $expected_locks] { lappend L $el }
|
|
|
|
set S ""
|
|
foreach sq [split $sql "\n"] {
|
|
set sq [string trim $sq]
|
|
if {[string match {#*} $sq]==0} {append S "$sq\n"}
|
|
}
|
|
|
|
set ::locks [list]
|
|
do_test wal2-6.4.$tn.1 { execsql $S } $res
|
|
do_test wal2-6.4.$tn.2 { set ::locks } $L
|
|
}
|
|
|
|
db close
|
|
tvfs delete
|
|
|
|
do_test wal2-6.5.1 {
|
|
sqlite3 db test.db
|
|
execsql {
|
|
PRAGMA auto_vacuum = 0;
|
|
PRAGMA journal_mode = wal;
|
|
PRAGMA locking_mode = exclusive;
|
|
CREATE TABLE t2(a, b);
|
|
PRAGMA wal_checkpoint;
|
|
INSERT INTO t2 VALUES('I', 'II');
|
|
PRAGMA journal_mode;
|
|
}
|
|
} {wal exclusive 0 2 2 wal}
|
|
do_test wal2-6.5.2 {
|
|
execsql {
|
|
PRAGMA locking_mode = normal;
|
|
INSERT INTO t2 VALUES('III', 'IV');
|
|
PRAGMA locking_mode = exclusive;
|
|
SELECT * FROM t2;
|
|
}
|
|
} {normal exclusive I II III IV}
|
|
do_test wal2-6.5.3 {
|
|
execsql { PRAGMA wal_checkpoint }
|
|
} {0 2 2}
|
|
db close
|
|
|
|
proc lock_control {method filename handle spec} {
|
|
foreach {start n op type} $spec break
|
|
if {$op == "lock"} { return SQLITE_IOERR }
|
|
return SQLITE_OK
|
|
}
|
|
do_test wal2-6.6.1 {
|
|
testvfs T
|
|
T script lock_control
|
|
T filter {}
|
|
sqlite3 db test.db -vfs T
|
|
execsql { SELECT * FROM sqlite_master }
|
|
execsql { PRAGMA locking_mode = exclusive }
|
|
execsql { INSERT INTO t2 VALUES('V', 'VI') }
|
|
} {}
|
|
do_test wal2-6.6.2 {
|
|
execsql { PRAGMA locking_mode = normal }
|
|
T filter xShmLock
|
|
execsql { INSERT INTO t2 VALUES('VII', 'VIII') }
|
|
} {}
|
|
do_test wal2-6.6.3 {
|
|
# At this point the connection should still be in exclusive-mode, even
|
|
# though it tried to exit exclusive-mode when committing the INSERT
|
|
# statement above. To exit exclusive mode, SQLite has to take a read-lock
|
|
# on the WAL file using xShmLock(). Since that call failed, it remains
|
|
# in exclusive mode.
|
|
#
|
|
sqlite3 db2 test.db -vfs T
|
|
catchsql { SELECT * FROM t2 } db2
|
|
} {1 {database is locked}}
|
|
do_test wal2-6.6.2 {
|
|
db2 close
|
|
T filter {}
|
|
execsql { INSERT INTO t2 VALUES('IX', 'X') }
|
|
} {}
|
|
do_test wal2-6.6.4 {
|
|
# This time, we have successfully exited exclusive mode. So the second
|
|
# connection can read the database.
|
|
sqlite3 db2 test.db -vfs T
|
|
catchsql { SELECT * FROM t2 } db2
|
|
} {0 {I II III IV V VI VII VIII IX X}}
|
|
|
|
db close
|
|
db2 close
|
|
T delete
|
|
|
|
#-------------------------------------------------------------------------
|
|
# Test a theory about the checksum algorithm. Theory was false and this
|
|
# test did not provoke a bug.
|
|
#
|
|
forcedelete test.db test.db-wal test.db-journal
|
|
do_test wal2-7.1.1 {
|
|
sqlite3 db test.db
|
|
execsql {
|
|
PRAGMA page_size = 4096;
|
|
PRAGMA journal_mode = WAL;
|
|
CREATE TABLE t1(a, b);
|
|
}
|
|
file size test.db
|
|
} {4096}
|
|
do_test wal2-7.1.2 {
|
|
forcecopy test.db test2.db
|
|
forcecopy test.db-wal test2.db-wal
|
|
hexio_write test2.db-wal 48 FF
|
|
} {1}
|
|
do_test wal2-7.1.3 {
|
|
sqlite3 db2 test2.db
|
|
execsql { PRAGMA wal_checkpoint } db2
|
|
execsql { SELECT * FROM sqlite_master } db2
|
|
} {}
|
|
db close
|
|
db2 close
|
|
forcedelete test.db test.db-wal test.db-journal
|
|
do_test wal2-8.1.2 {
|
|
sqlite3 db test.db
|
|
execsql {
|
|
PRAGMA auto_vacuum=OFF;
|
|
PRAGMA page_size = 1024;
|
|
PRAGMA journal_mode = WAL;
|
|
CREATE TABLE t1(x);
|
|
INSERT INTO t1 VALUES(zeroblob(8188*1020));
|
|
CREATE TABLE t2(y);
|
|
PRAGMA wal_checkpoint;
|
|
}
|
|
execsql {
|
|
SELECT rootpage>=8192 FROM sqlite_master WHERE tbl_name = 't2';
|
|
}
|
|
} {1}
|
|
do_test wal2-8.1.3 {
|
|
execsql {
|
|
PRAGMA cache_size = 10;
|
|
CREATE TABLE t3(z);
|
|
BEGIN;
|
|
INSERT INTO t3 VALUES(randomblob(900));
|
|
INSERT INTO t3 SELECT randomblob(900) FROM t3;
|
|
INSERT INTO t2 VALUES('hello');
|
|
INSERT INTO t3 SELECT randomblob(900) FROM t3;
|
|
INSERT INTO t3 SELECT randomblob(900) FROM t3;
|
|
INSERT INTO t3 SELECT randomblob(900) FROM t3;
|
|
INSERT INTO t3 SELECT randomblob(900) FROM t3;
|
|
INSERT INTO t3 SELECT randomblob(900) FROM t3;
|
|
INSERT INTO t3 SELECT randomblob(900) FROM t3;
|
|
ROLLBACK;
|
|
}
|
|
execsql {
|
|
INSERT INTO t2 VALUES('goodbye');
|
|
INSERT INTO t3 SELECT randomblob(900) FROM t3;
|
|
INSERT INTO t3 SELECT randomblob(900) FROM t3;
|
|
}
|
|
} {}
|
|
do_test wal2-8.1.4 {
|
|
sqlite3 db2 test.db
|
|
execsql { SELECT * FROM t2 }
|
|
} {goodbye}
|
|
db2 close
|
|
db close
|
|
|
|
#-------------------------------------------------------------------------
|
|
# Test that even if the checksums for both are valid, if the two copies
|
|
# of the wal-index header in the wal-index do not match, the client
|
|
# runs (or at least tries to run) database recovery.
|
|
#
|
|
#
|
|
proc get_name {method args} { set ::filename [lindex $args 0] ; tvfs filter {} }
|
|
testvfs tvfs
|
|
tvfs script get_name
|
|
tvfs filter xShmOpen
|
|
|
|
forcedelete test.db test.db-wal test.db-journal
|
|
do_test wal2-9.1 {
|
|
sqlite3 db test.db -vfs tvfs
|
|
execsql {
|
|
PRAGMA journal_mode = WAL;
|
|
CREATE TABLE x(y);
|
|
INSERT INTO x VALUES('Barton');
|
|
INSERT INTO x VALUES('Deakin');
|
|
}
|
|
|
|
# Set $wih(1) to the contents of the wal-index header after
|
|
# the frames associated with the first two rows in table 'x' have
|
|
# been inserted. Then insert one more row and set $wih(2)
|
|
# to the new value of the wal-index header.
|
|
#
|
|
# If the $wih(1) is written into the wal-index before running
|
|
# a read operation, the client will see only the first two rows. If
|
|
# $wih(2) is written into the wal-index, the client will see
|
|
# three rows. If an invalid header is written into the wal-index, then
|
|
# the client will run recovery and see three rows.
|
|
#
|
|
set wih(1) [set_tvfs_hdr $::filename]
|
|
execsql { INSERT INTO x VALUES('Watson') }
|
|
set wih(2) [set_tvfs_hdr $::filename]
|
|
|
|
sqlite3 db2 test.db -vfs tvfs
|
|
execsql { SELECT * FROM x } db2
|
|
} {Barton Deakin Watson}
|
|
|
|
foreach {tn hdr1 hdr2 res} [list \
|
|
3 $wih(1) $wih(1) {Barton Deakin} \
|
|
4 $wih(1) $wih(2) {Barton Deakin Watson} \
|
|
5 $wih(2) $wih(1) {Barton Deakin Watson} \
|
|
6 $wih(2) $wih(2) {Barton Deakin Watson} \
|
|
7 $wih(1) $wih(1) {Barton Deakin} \
|
|
8 {0 0 0 0 0 0 0 0 0 0 0 0} {0 0 0 0 0 0 0 0 0 0 0 0} {Barton Deakin Watson}
|
|
] {
|
|
do_test wal2-9.$tn {
|
|
set_tvfs_hdr $::filename $hdr1 $hdr2
|
|
execsql { SELECT * FROM x } db2
|
|
} $res
|
|
}
|
|
|
|
db2 close
|
|
db close
|
|
|
|
#-------------------------------------------------------------------------
|
|
# This block of tests - wal2-10.* - focus on the libraries response to
|
|
# new versions of the wal or wal-index formats.
|
|
#
|
|
# wal2-10.1.*: Test that the library refuses to "recover" a new WAL
|
|
# format.
|
|
#
|
|
# wal2-10.2.*: Test that the library refuses to read or write a database
|
|
# if the wal-index version is newer than it understands.
|
|
#
|
|
# At time of writing, the only versions of the wal and wal-index formats
|
|
# that exist are versions 3007000 (corresponding to SQLite version 3.7.0,
|
|
# the first version of SQLite to feature wal mode).
|
|
#
|
|
do_test wal2-10.1.1 {
|
|
faultsim_delete_and_reopen
|
|
execsql {
|
|
PRAGMA journal_mode = WAL;
|
|
CREATE TABLE t1(a, b);
|
|
PRAGMA wal_checkpoint;
|
|
INSERT INTO t1 VALUES(1, 2);
|
|
INSERT INTO t1 VALUES(3, 4);
|
|
}
|
|
faultsim_save_and_close
|
|
} {}
|
|
do_test wal2-10.1.2 {
|
|
faultsim_restore_and_reopen
|
|
execsql { SELECT * FROM t1 }
|
|
} {1 2 3 4}
|
|
do_test wal2-10.1.3 {
|
|
faultsim_restore_and_reopen
|
|
set hdr [wal_set_walhdr test.db-wal]
|
|
lindex $hdr 1
|
|
} {3007000}
|
|
do_test wal2-10.1.4 {
|
|
lset hdr 1 3007001
|
|
wal_set_walhdr test.db-wal $hdr
|
|
catchsql { SELECT * FROM t1 }
|
|
} {1 {unable to open database file}}
|
|
|
|
testvfs tvfs -default 1
|
|
do_test wal2-10.2.1 {
|
|
faultsim_restore_and_reopen
|
|
execsql { SELECT * FROM t1 }
|
|
} {1 2 3 4}
|
|
do_test wal2-10.2.2 {
|
|
set hdr [set_tvfs_hdr $::filename]
|
|
lindex $hdr 0
|
|
} {3007000}
|
|
do_test wal2-10.2.3 {
|
|
lset hdr 0 3007001
|
|
wal_fix_walindex_cksum hdr
|
|
set_tvfs_hdr $::filename $hdr
|
|
catchsql { SELECT * FROM t1 }
|
|
} {1 {unable to open database file}}
|
|
db close
|
|
tvfs delete
|
|
|
|
#-------------------------------------------------------------------------
|
|
# This block of tests - wal2-11.* - tests that it is not possible to put
|
|
# the library into an infinite loop by presenting it with a corrupt
|
|
# hash table (one that appears to contain a single chain of infinite
|
|
# length).
|
|
#
|
|
# wal2-11.1.*: While reading the hash-table.
|
|
#
|
|
# wal2-11.2.*: While writing the hash-table.
|
|
#
|
|
testvfs tvfs -default 1
|
|
do_test wal2-11.0 {
|
|
faultsim_delete_and_reopen
|
|
execsql {
|
|
PRAGMA journal_mode = WAL;
|
|
CREATE TABLE t1(a, b, c);
|
|
INSERT INTO t1 VALUES(1, 2, 3);
|
|
INSERT INTO t1 VALUES(4, 5, 6);
|
|
INSERT INTO t1 VALUES(7, 8, 9);
|
|
SELECT * FROM t1;
|
|
}
|
|
} {wal 1 2 3 4 5 6 7 8 9}
|
|
|
|
do_test wal2-11.1.1 {
|
|
sqlite3 db2 test.db
|
|
execsql { SELECT name FROM sqlite_master } db2
|
|
} {t1}
|
|
|
|
if {$::tcl_version>=8.5} {
|
|
# Set all zeroed slots in the first hash table to invalid values.
|
|
#
|
|
set blob [string range [tvfs shm $::filename] 0 16383]
|
|
set I [string range [tvfs shm $::filename] 16384 end]
|
|
binary scan $I t* L
|
|
set I [list]
|
|
foreach p $L {
|
|
lappend I [expr $p ? $p : 400]
|
|
}
|
|
append blob [binary format t* $I]
|
|
tvfs shm $::filename $blob
|
|
do_test wal2-11.2 {
|
|
catchsql { INSERT INTO t1 VALUES(10, 11, 12) }
|
|
} {1 {database disk image is malformed}}
|
|
|
|
# Fill up the hash table on the first page of shared memory with 0x55 bytes.
|
|
#
|
|
set blob [string range [tvfs shm $::filename] 0 16383]
|
|
append blob [string repeat [binary format c 55] 16384]
|
|
tvfs shm $::filename $blob
|
|
do_test wal2-11.3 {
|
|
catchsql { SELECT * FROM t1 } db2
|
|
} {1 {database disk image is malformed}}
|
|
}
|
|
|
|
db close
|
|
db2 close
|
|
tvfs delete
|
|
|
|
#-------------------------------------------------------------------------
|
|
# If a connection is required to create a WAL or SHM file, it creates
|
|
# the new files with the same file-system permissions as the database
|
|
# file itself. Test this.
|
|
#
|
|
if {$::tcl_platform(platform) == "unix"} {
|
|
faultsim_delete_and_reopen
|
|
# Changed on 2012-02-13: umask is deliberately ignored for -wal files.
|
|
#set umask [exec /bin/sh -c umask]
|
|
set umask 0
|
|
|
|
|
|
do_test wal2-12.1 {
|
|
sqlite3 db test.db
|
|
execsql {
|
|
CREATE TABLE tx(y, z);
|
|
PRAGMA journal_mode = WAL;
|
|
}
|
|
db close
|
|
list [file exists test.db-wal] [file exists test.db-shm]
|
|
} {0 0}
|
|
|
|
foreach {tn permissions} {
|
|
1 00644
|
|
2 00666
|
|
3 00600
|
|
4 00755
|
|
} {
|
|
set effective [format %.5o [expr $permissions & ~$umask]]
|
|
do_test wal2-12.2.$tn.1 {
|
|
file attributes test.db -permissions $permissions
|
|
file attributes test.db -permissions
|
|
} $permissions
|
|
do_test wal2-12.2.$tn.2 {
|
|
list [file exists test.db-wal] [file exists test.db-shm]
|
|
} {0 0}
|
|
do_test wal2-12.2.$tn.3 {
|
|
sqlite3 db test.db
|
|
execsql { INSERT INTO tx DEFAULT VALUES }
|
|
list [file exists test.db-wal] [file exists test.db-shm]
|
|
} {1 1}
|
|
do_test wal2-12.2.$tn.4 {
|
|
list [file attr test.db-wal -perm] [file attr test.db-shm -perm]
|
|
} [list $effective $effective]
|
|
do_test wal2-12.2.$tn.5 {
|
|
db close
|
|
list [file exists test.db-wal] [file exists test.db-shm]
|
|
} {0 0}
|
|
}
|
|
}
|
|
|
|
#-------------------------------------------------------------------------
|
|
# Test the libraries response to discovering that one or more of the
|
|
# database, wal or shm files cannot be opened, or can only be opened
|
|
# read-only.
|
|
#
|
|
if {$::tcl_platform(platform) == "unix"} {
|
|
proc perm {} {
|
|
set L [list]
|
|
foreach f {test.db test.db-wal test.db-shm} {
|
|
if {[file exists $f]} {
|
|
lappend L [file attr $f -perm]
|
|
} else {
|
|
lappend L {}
|
|
}
|
|
}
|
|
set L
|
|
}
|
|
|
|
faultsim_delete_and_reopen
|
|
execsql {
|
|
PRAGMA journal_mode = WAL;
|
|
CREATE TABLE t1(a, b);
|
|
PRAGMA wal_checkpoint;
|
|
INSERT INTO t1 VALUES('3.14', '2.72');
|
|
}
|
|
do_test wal2-13.1.1 {
|
|
list [file exists test.db-shm] [file exists test.db-wal]
|
|
} {1 1}
|
|
faultsim_save_and_close
|
|
|
|
foreach {tn db_perm wal_perm shm_perm can_open can_read can_write} {
|
|
2 00644 00644 00644 1 1 1
|
|
3 00644 00400 00644 1 1 0
|
|
4 00644 00644 00400 1 0 0
|
|
5 00400 00644 00644 1 1 0
|
|
|
|
7 00644 00000 00644 1 0 0
|
|
8 00644 00644 00000 1 0 0
|
|
9 00000 00644 00644 0 0 0
|
|
} {
|
|
faultsim_restore
|
|
do_test wal2-13.$tn.1 {
|
|
file attr test.db -perm $db_perm
|
|
file attr test.db-wal -perm $wal_perm
|
|
file attr test.db-shm -perm $shm_perm
|
|
|
|
set L [file attr test.db -perm]
|
|
lappend L [file attr test.db-wal -perm]
|
|
lappend L [file attr test.db-shm -perm]
|
|
} [list $db_perm $wal_perm $shm_perm]
|
|
|
|
# If $can_open is true, then it should be possible to open a database
|
|
# handle. Otherwise, if $can_open is 0, attempting to open the db
|
|
# handle throws an "unable to open database file" exception.
|
|
#
|
|
set r(1) {0 ok}
|
|
set r(0) {1 {unable to open database file}}
|
|
do_test wal2-13.$tn.2 {
|
|
list [catch {sqlite3 db test.db ; set {} ok} msg] $msg
|
|
} $r($can_open)
|
|
|
|
if {$can_open} {
|
|
|
|
# If $can_read is true, then the client should be able to read from
|
|
# the database file. If $can_read is false, attempting to read should
|
|
# throw the "unable to open database file" exception.
|
|
#
|
|
set a(0) {1 {unable to open database file}}
|
|
set a(1) {0 {3.14 2.72}}
|
|
do_test wal2-13.$tn.3 {
|
|
catchsql { SELECT * FROM t1 }
|
|
} $a($can_read)
|
|
|
|
# Now try to write to the db file. If the client can read but not
|
|
# write, then it should throw the familiar "unable to open db file"
|
|
# exception. If it can read but not write, the exception should
|
|
# be "attempt to write a read only database".
|
|
#
|
|
# If the client can read and write, the operation should succeed.
|
|
#
|
|
set b(0,0) {1 {unable to open database file}}
|
|
set b(1,0) {1 {attempt to write a readonly database}}
|
|
set b(1,1) {0 {}}
|
|
do_test wal2-13.$tn.4 {
|
|
catchsql { INSERT INTO t1 DEFAULT VALUES }
|
|
} $b($can_read,$can_write)
|
|
}
|
|
catch { db close }
|
|
}
|
|
}
|
|
|
|
#-------------------------------------------------------------------------
|
|
# Test that "PRAGMA checkpoint_fullsync" appears to be working.
|
|
#
|
|
foreach {tn sql reslist} {
|
|
1 { } {10 0 4 0 6 0}
|
|
2 { PRAGMA checkpoint_fullfsync = 1 } {10 4 4 2 6 2}
|
|
3 { PRAGMA checkpoint_fullfsync = 0 } {10 0 4 0 6 0}
|
|
} {
|
|
faultsim_delete_and_reopen
|
|
|
|
execsql {PRAGMA auto_vacuum = 0}
|
|
execsql $sql
|
|
do_execsql_test wal2-14.$tn.0 { PRAGMA page_size = 4096 } {}
|
|
do_execsql_test wal2-14.$tn.1 { PRAGMA journal_mode = WAL } {wal}
|
|
|
|
set sqlite_sync_count 0
|
|
set sqlite_fullsync_count 0
|
|
|
|
do_execsql_test wal2-14.$tn.2 {
|
|
PRAGMA wal_autocheckpoint = 10;
|
|
CREATE TABLE t1(a, b); -- 2 wal syncs
|
|
INSERT INTO t1 VALUES(1, 2); -- 2 wal sync
|
|
PRAGMA wal_checkpoint; -- 1 wal sync, 1 db sync
|
|
BEGIN;
|
|
INSERT INTO t1 VALUES(3, 4);
|
|
INSERT INTO t1 VALUES(5, 6);
|
|
COMMIT; -- 2 wal sync
|
|
PRAGMA wal_checkpoint; -- 1 wal sync, 1 db sync
|
|
} {10 0 3 3 0 1 1}
|
|
|
|
do_test wal2-14.$tn.3 {
|
|
cond_incr_sync_count 1
|
|
list $sqlite_sync_count $sqlite_fullsync_count
|
|
} [lrange $reslist 0 1]
|
|
|
|
set sqlite_sync_count 0
|
|
set sqlite_fullsync_count 0
|
|
|
|
do_test wal2-14.$tn.4 {
|
|
execsql { INSERT INTO t1 VALUES(7, zeroblob(12*4096)) }
|
|
list $sqlite_sync_count $sqlite_fullsync_count
|
|
} [lrange $reslist 2 3]
|
|
|
|
set sqlite_sync_count 0
|
|
set sqlite_fullsync_count 0
|
|
|
|
do_test wal2-14.$tn.5 {
|
|
execsql { PRAGMA wal_autocheckpoint = 1000 }
|
|
execsql { INSERT INTO t1 VALUES(9, 10) }
|
|
execsql { INSERT INTO t1 VALUES(11, 12) }
|
|
execsql { INSERT INTO t1 VALUES(13, 14) }
|
|
db close
|
|
list $sqlite_sync_count $sqlite_fullsync_count
|
|
} [lrange $reslist 4 5]
|
|
}
|
|
|
|
catch { db close }
|
|
|
|
# PRAGMA checkpoint_fullsync
|
|
# PRAGMA fullfsync
|
|
# PRAGMA synchronous
|
|
#
|
|
foreach {tn settings restart_sync commit_sync ckpt_sync} {
|
|
1 {0 0 off} {0 0} {0 0} {0 0}
|
|
2 {0 0 normal} {1 0} {0 0} {2 0}
|
|
3 {0 0 full} {2 0} {1 0} {2 0}
|
|
|
|
4 {0 1 off} {0 0} {0 0} {0 0}
|
|
5 {0 1 normal} {0 1} {0 0} {0 2}
|
|
6 {0 1 full} {0 2} {0 1} {0 2}
|
|
|
|
7 {1 0 off} {0 0} {0 0} {0 0}
|
|
8 {1 0 normal} {1 0} {0 0} {0 2}
|
|
9 {1 0 full} {2 0} {1 0} {0 2}
|
|
|
|
10 {1 1 off} {0 0} {0 0} {0 0}
|
|
11 {1 1 normal} {0 1} {0 0} {0 2}
|
|
12 {1 1 full} {0 2} {0 1} {0 2}
|
|
} {
|
|
forcedelete test.db
|
|
|
|
testvfs tvfs -default 1
|
|
tvfs filter xSync
|
|
tvfs script xSyncCb
|
|
proc xSyncCb {method file fileid flags} {
|
|
incr ::sync($flags)
|
|
}
|
|
|
|
sqlite3 db test.db
|
|
do_execsql_test 15.$tn.1 "
|
|
PRAGMA page_size = 4096;
|
|
CREATE TABLE t1(x);
|
|
PRAGMA wal_autocheckpoint = OFF;
|
|
PRAGMA journal_mode = WAL;
|
|
PRAGMA checkpoint_fullfsync = [lindex $settings 0];
|
|
PRAGMA fullfsync = [lindex $settings 1];
|
|
PRAGMA synchronous = [lindex $settings 2];
|
|
" {0 wal}
|
|
|
|
if { $tn==2} breakpoint
|
|
do_test 15.$tn.2 {
|
|
set sync(normal) 0
|
|
set sync(full) 0
|
|
execsql { INSERT INTO t1 VALUES('abc') }
|
|
list $::sync(normal) $::sync(full)
|
|
} $restart_sync
|
|
|
|
do_test 15.$tn.3 {
|
|
set sync(normal) 0
|
|
set sync(full) 0
|
|
execsql { INSERT INTO t1 VALUES('abc') }
|
|
list $::sync(normal) $::sync(full)
|
|
} $commit_sync
|
|
|
|
do_test 15.$tn.4 {
|
|
set sync(normal) 0
|
|
set sync(full) 0
|
|
execsql { INSERT INTO t1 VALUES('def') }
|
|
list $::sync(normal) $::sync(full)
|
|
} $commit_sync
|
|
|
|
do_test 15.$tn.5 {
|
|
set sync(normal) 0
|
|
set sync(full) 0
|
|
execsql { PRAGMA wal_checkpoint }
|
|
list $::sync(normal) $::sync(full)
|
|
} $ckpt_sync
|
|
|
|
db close
|
|
tvfs delete
|
|
}
|
|
|
|
|
|
|
|
finish_test
|