# 2011 July 11 # # 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. # #*********************************************************************** # This file implements regression tests for SQLite library. The # focus of this script is recovery from transient manditory locks # that sometimes appear on database files due to anti-virus software. # if {$tcl_platform(platform)!="windows"} return set testdir [file dirname $argv0] source $testdir/tester.tcl set testprefix win32lock db close sqlite3_shutdown test_sqlite3_log xLog proc xLog {error_code msg} { lappend ::log $msg } sqlite3 db test.db db eval {PRAGMA mmap_size=0} do_test win32lock-1.1 { db eval { PRAGMA cache_size=10; CREATE TABLE t1(x,y); INSERT INTO t1 VALUES(1,randomblob(100000)); INSERT INTO t1 VALUES(2,randomblob(50000)); INSERT INTO t1 VALUES(3,randomblob(25000)); INSERT INTO t1 VALUES(4,randomblob(12500)); SELECT x, length(y) FROM t1 ORDER BY rowid; } } {1 100000 2 50000 3 25000 4 12500} unset -nocomplain delay1 rc msg set old_pending_byte [sqlite3_test_control_pending_byte 0x40000000] set win32_lock_ok [list] set win32_lock_error [list] set delay1 25 while {1} { lock_win32_file test.db 0 $::delay1 set ::log {} set rc [catch {db eval {SELECT x, length(y) FROM t1 ORDER BY rowid}} msg] if {$rc} { lappend win32_lock_error $::delay1 do_test win32lock-1.2-$delay1-error { set ::msg } {disk I/O error} } else { lappend win32_lock_ok $::delay1 do_test win32lock-1.2-$delay1-ok { set ::msg } {1 100000 2 50000 3 25000 4 12500} if {[info exists ::log] && $::log!=""} { do_test win32lock-1.2-$delay1-log1 { regsub {\d+} $::log # x set x } {{delayed #ms for lock/sharing conflict}} } } if {[llength $win32_lock_ok] && [llength $win32_lock_error]} break incr delay1 25 if {$delay1 > 12500} { puts "Timed out waiting for \"ok\" and \"error\" results." break } sqlite3_sleep 10 } do_test win32lock-2.0 { file_control_win32_av_retry db -1 -1 } {0 10 25} do_test win32lock-2.1 { file_control_win32_av_retry db 1 1 } {0 1 1} # # NOTE: It is known that the win32lock-2.2-* tests may fail if the system is # experiencing heavy load (i.e. they are very timing sensitive). This is # primarily due to the AV retry delay being set to 1 millisecond in the # win32lock-2.1 test (above). While it is important to test this corner # case for the AV retry logic, a failure of this test should probably not # be interpreted as a bug in SQLite or these test cases. # set win32_lock_ok [list] set win32_lock_error [list] set delay1 1 while {1} { lock_win32_file test.db 0 $::delay1 set ::log {} set rc [catch {db eval {SELECT x, length(y) FROM t1 ORDER BY rowid}} msg] if {$rc} { lappend win32_lock_error $::delay1 do_test win32lock-2.2-$delay1-error { set ::msg } {disk I/O error} } else { lappend win32_lock_ok $::delay1 do_test win32lock-2.2-$delay1-ok { set ::msg } {1 100000 2 50000 3 25000 4 12500} if {[info exists ::log] && $::log!=""} { do_test win32lock-2.2-$delay1-log1 { regsub {\d+} $::log # x set x } {{delayed #ms for lock/sharing conflict}} } } if {[llength $win32_lock_ok] && [llength $win32_lock_error]} break incr delay1 1 if {$delay1 > 500} { puts "Timed out waiting for \"ok\" and \"error\" results." break } sqlite3_sleep 10 } file_control_win32_av_retry db 10 25 sqlite3_test_control_pending_byte $old_pending_byte db close sqlite3_shutdown test_sqlite3_log sqlite3_initialize finish_test