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| 1 # 2007 Aug 13 | |
| 2 # | |
| 3 # The author disclaims copyright to this source code. In place of | |
| 4 # a legal notice, here is a blessing: | |
| 5 # | |
| 6 # May you do good and not evil. | |
| 7 # May you find forgiveness for yourself and forgive others. | |
| 8 # May you share freely, never taking more than you give. | |
| 9 # | |
| 10 #*********************************************************************** | |
| 11 # | |
| 12 # This file tests aspects of the malloc failure while parsing | |
| 13 # CREATE TABLE statements in auto_vacuum mode. | |
| 14 # | |
| 15 # $Id: mallocC.test,v 1.10 2009/04/11 16:27:50 drh Exp $ | |
| 16 | |
| 17 set testdir [file dirname $argv0] | |
| 18 source $testdir/tester.tcl | |
| 19 source $testdir/malloc_common.tcl | |
| 20 | |
| 21 # Only run these tests if memory debugging is turned on. | |
| 22 # | |
| 23 if {!$MEMDEBUG} { | |
| 24 puts "Skipping mallocC tests: not compiled with -DSQLITE_MEMDEBUG..." | |
| 25 finish_test | |
| 26 return | |
| 27 } | |
| 28 | |
| 29 proc do_mallocC_test {tn args} { | |
| 30 array set ::mallocopts $args | |
| 31 #set sum [allcksum db] | |
| 32 | |
| 33 for {set ::n 1} {true} {incr ::n} { | |
| 34 | |
| 35 # Run the SQL. Malloc number $::n is set to fail. A malloc() failure | |
| 36 # may or may not be reported. | |
| 37 sqlite3_memdebug_fail $::n -repeat 1 | |
| 38 do_test mallocC-$tn.$::n.1 { | |
| 39 set res [catchsql [string trim $::mallocopts(-sql)]] | |
| 40 set rc [expr { | |
| 41 0==[string compare $res {1 {out of memory}}] || | |
| 42 [db errorcode] == 3082 || | |
| 43 0==[lindex $res 0] | |
| 44 }] | |
| 45 if {$rc!=1} { | |
| 46 puts "Error: $res" | |
| 47 } | |
| 48 set rc | |
| 49 } {1} | |
| 50 | |
| 51 # If $::n is greater than the number of malloc() calls required to | |
| 52 # execute the SQL, then this test is finished. Break out of the loop. | |
| 53 set nFail [sqlite3_memdebug_fail -1] | |
| 54 if {$nFail==0} { | |
| 55 break | |
| 56 } | |
| 57 | |
| 58 # Recover from the malloc failure. | |
| 59 # | |
| 60 # Update: The new malloc() failure handling means that a transaction may | |
| 61 # still be active even if a malloc() has failed. But when these tests were | |
| 62 # written this was not the case. So do a manual ROLLBACK here so that the | |
| 63 # tests pass. | |
| 64 do_test mallocC-$tn.$::n.2 { | |
| 65 catch { | |
| 66 execsql { | |
| 67 ROLLBACK; | |
| 68 } | |
| 69 } | |
| 70 expr 0 | |
| 71 } {0} | |
| 72 | |
| 73 # Checksum the database. | |
| 74 #do_test mallocC-$tn.$::n.3 { | |
| 75 # allcksum db | |
| 76 #} $sum | |
| 77 | |
| 78 #integrity_check mallocC-$tn.$::n.4 | |
| 79 if {$::nErr>1} return | |
| 80 } | |
| 81 unset ::mallocopts | |
| 82 } | |
| 83 | |
| 84 sqlite3_extended_result_codes db 1 | |
| 85 | |
| 86 execsql { | |
| 87 PRAGMA auto_vacuum=1; | |
| 88 CREATE TABLE t0(a, b, c); | |
| 89 } | |
| 90 | |
| 91 # The number of memory allocation failures is different on 64-bit | |
| 92 # and 32-bit systems due to larger structures on 64-bit systems | |
| 93 # overflowing the lookaside more often. To debug problems, it is | |
| 94 # sometimes helpful to reduce the size of the lookaside allocation | |
| 95 # blocks. But this is normally disabled. | |
| 96 # | |
| 97 if {0} { | |
| 98 db close | |
| 99 sqlite3_shutdown | |
| 100 sqlite3_config_lookaside 50 500 | |
| 101 sqlite3_initialize | |
| 102 autoinstall_test_functions | |
| 103 sqlite3 db test.db | |
| 104 } | |
| 105 | |
| 106 do_mallocC_test 1 -sql { | |
| 107 BEGIN; | |
| 108 -- Allocate 32 new root pages. This will exercise the 'extract specific | |
| 109 -- page from the freelist' code when in auto-vacuum mode (see the | |
| 110 -- allocatePage() routine in btree.c). | |
| 111 CREATE TABLE t1(a UNIQUE, b UNIQUE, c UNIQUE); | |
| 112 CREATE TABLE t2(a UNIQUE, b UNIQUE, c UNIQUE); | |
| 113 CREATE TABLE t3(a UNIQUE, b UNIQUE, c UNIQUE); | |
| 114 CREATE TABLE t4(a UNIQUE, b UNIQUE, c UNIQUE); | |
| 115 CREATE TABLE t5(a UNIQUE, b UNIQUE, c UNIQUE); | |
| 116 CREATE TABLE t6(a UNIQUE, b UNIQUE, c UNIQUE); | |
| 117 CREATE TABLE t7(a UNIQUE, b UNIQUE, c UNIQUE); | |
| 118 CREATE TABLE t8(a UNIQUE, b UNIQUE, c UNIQUE); | |
| 119 | |
| 120 ROLLBACK; | |
| 121 } | |
| 122 | |
| 123 finish_test | |
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