Annotation of embedaddon/sqlite3/test/thread1.test, revision 1.1
1.1 ! misho 1: # 2003 December 18
! 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: # This file implements regression tests for SQLite library. The
! 12: # focus of this script is multithreading behavior
! 13: #
! 14: # $Id: thread1.test,v 1.8 2008/10/07 15:25:49 drh Exp $
! 15:
! 16:
! 17: set testdir [file dirname $argv0]
! 18: source $testdir/tester.tcl
! 19:
! 20: # Skip this whole file if the thread testing code is not enabled
! 21: #
! 22: if {[run_thread_tests]==0} { finish_test ; return }
! 23: if {[llength [info command thread_step]]==0 || [sqlite3 -has-codec]} {
! 24: finish_test
! 25: return
! 26: }
! 27:
! 28: # Create some data to work with
! 29: #
! 30: do_test thread1-1.1 {
! 31: execsql {
! 32: CREATE TABLE t1(a,b);
! 33: INSERT INTO t1 VALUES(1,'abcdefgh');
! 34: INSERT INTO t1 SELECT a+1, b||b FROM t1;
! 35: INSERT INTO t1 SELECT a+2, b||b FROM t1;
! 36: INSERT INTO t1 SELECT a+4, b||b FROM t1;
! 37: SELECT count(*), max(length(b)) FROM t1;
! 38: }
! 39: } {8 64}
! 40:
! 41: # Interleave two threads on read access. Then make sure a third
! 42: # thread can write the database. In other words:
! 43: #
! 44: # read-lock A
! 45: # read-lock B
! 46: # unlock A
! 47: # unlock B
! 48: # write-lock C
! 49: #
! 50: # At one point, the write-lock of C would fail on Linux.
! 51: #
! 52: do_test thread1-1.2 {
! 53: thread_create A test.db
! 54: thread_create B test.db
! 55: thread_create C test.db
! 56: thread_compile A {SELECT a FROM t1}
! 57: thread_step A
! 58: thread_result A
! 59: } SQLITE_ROW
! 60: do_test thread1-1.3 {
! 61: thread_argc A
! 62: } 1
! 63: do_test thread1-1.4 {
! 64: thread_argv A 0
! 65: } 1
! 66: do_test thread1-1.5 {
! 67: thread_compile B {SELECT b FROM t1}
! 68: thread_step B
! 69: thread_result B
! 70: } SQLITE_ROW
! 71: do_test thread1-1.6 {
! 72: thread_argc B
! 73: } 1
! 74: do_test thread1-1.7 {
! 75: thread_argv B 0
! 76: } abcdefgh
! 77: do_test thread1-1.8 {
! 78: thread_finalize A
! 79: thread_result A
! 80: } SQLITE_OK
! 81: do_test thread1-1.9 {
! 82: thread_finalize B
! 83: thread_result B
! 84: } SQLITE_OK
! 85: do_test thread1-1.10 {
! 86: thread_compile C {CREATE TABLE t2(x,y)}
! 87: thread_step C
! 88: thread_result C
! 89: } SQLITE_DONE
! 90: do_test thread1-1.11 {
! 91: thread_finalize C
! 92: thread_result C
! 93: } SQLITE_OK
! 94: do_test thread1-1.12 {
! 95: catchsql {SELECT name FROM sqlite_master}
! 96: execsql {SELECT name FROM sqlite_master}
! 97: } {t1 t2}
! 98:
! 99:
! 100: #
! 101: # The following tests - thread1-2.* - test the following scenario:
! 102: #
! 103: # 1: Read-lock thread A
! 104: # 2: Read-lock thread B
! 105: # 3: Attempt to write in thread C -> SQLITE_BUSY
! 106: # 4: Check db write failed from main thread.
! 107: # 5: Unlock from thread A.
! 108: # 6: Attempt to write in thread C -> SQLITE_BUSY
! 109: # 7: Check db write failed from main thread.
! 110: # 8: Unlock from thread B.
! 111: # 9: Attempt to write in thread C -> SQLITE_DONE
! 112: # 10: Finalize the write from thread C
! 113: # 11: Check db write succeeded from main thread.
! 114: #
! 115: do_test thread1-2.1 {
! 116: thread_halt *
! 117: thread_create A test.db
! 118: thread_compile A {SELECT a FROM t1}
! 119: thread_step A
! 120: thread_result A
! 121: } SQLITE_ROW
! 122: do_test thread1-2.2 {
! 123: thread_create B test.db
! 124: thread_compile B {SELECT b FROM t1}
! 125: thread_step B
! 126: thread_result B
! 127: } SQLITE_ROW
! 128: do_test thread1-2.3 {
! 129: thread_create C test.db
! 130: thread_compile C {INSERT INTO t2 VALUES(98,99)}
! 131: thread_step C
! 132: thread_result C
! 133: thread_finalize C
! 134: thread_result C
! 135: } SQLITE_BUSY
! 136:
! 137: do_test thread1-2.4 {
! 138: execsql {SELECT * FROM t2}
! 139: } {}
! 140:
! 141: do_test thread1-2.5 {
! 142: thread_finalize A
! 143: thread_result A
! 144: } SQLITE_OK
! 145: do_test thread1-2.6 {
! 146: thread_compile C {INSERT INTO t2 VALUES(98,99)}
! 147: thread_step C
! 148: thread_result C
! 149: thread_finalize C
! 150: thread_result C
! 151: } SQLITE_BUSY
! 152: do_test thread1-2.7 {
! 153: execsql {SELECT * FROM t2}
! 154: } {}
! 155: do_test thread1-2.8 {
! 156: thread_finalize B
! 157: thread_result B
! 158: } SQLITE_OK
! 159: do_test thread1-2.9 {
! 160: thread_compile C {INSERT INTO t2 VALUES(98,99)}
! 161: thread_step C
! 162: thread_result C
! 163: } SQLITE_DONE
! 164: do_test thread1-2.10 {
! 165: thread_finalize C
! 166: thread_result C
! 167: } SQLITE_OK
! 168: do_test thread1-2.11 {
! 169: execsql {SELECT * FROM t2}
! 170: } {98 99}
! 171:
! 172: thread_halt *
! 173: finish_test
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