monref.c (1692B)
1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ 2 /* This Source Code Form is subject to the terms of the Mozilla Public 3 * License, v. 2.0. If a copy of the MPL was not distributed with this 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 5 6 /* 7 * This test program demonstrates that PR_ExitMonitor needs to add a 8 * reference to the PRMonitor object before unlocking the internal 9 * mutex. 10 */ 11 12 #include "prlog.h" 13 #include "prmon.h" 14 #include "prthread.h" 15 16 #include <stdio.h> 17 #include <stdlib.h> 18 19 /* Protected by the PRMonitor 'mon' in the main function. */ 20 static PRBool done = PR_FALSE; 21 22 static void ThreadFunc(void* arg) { 23 PRMonitor* mon = (PRMonitor*)arg; 24 PRStatus rv; 25 26 PR_EnterMonitor(mon); 27 done = PR_TRUE; 28 rv = PR_Notify(mon); 29 PR_ASSERT(rv == PR_SUCCESS); 30 rv = PR_ExitMonitor(mon); 31 PR_ASSERT(rv == PR_SUCCESS); 32 } 33 34 int main() { 35 PRMonitor* mon; 36 PRThread* thread; 37 PRStatus rv; 38 39 mon = PR_NewMonitor(); 40 if (!mon) { 41 fprintf(stderr, "PR_NewMonitor failed\n"); 42 exit(1); 43 } 44 45 thread = PR_CreateThread(PR_USER_THREAD, ThreadFunc, mon, PR_PRIORITY_NORMAL, 46 PR_GLOBAL_THREAD, PR_JOINABLE_THREAD, 0); 47 if (!thread) { 48 fprintf(stderr, "PR_CreateThread failed\n"); 49 exit(1); 50 } 51 52 PR_EnterMonitor(mon); 53 while (!done) { 54 rv = PR_Wait(mon, PR_INTERVAL_NO_TIMEOUT); 55 PR_ASSERT(rv == PR_SUCCESS); 56 } 57 rv = PR_ExitMonitor(mon); 58 PR_ASSERT(rv == PR_SUCCESS); 59 60 /* 61 * Do you agree it should be safe to destroy 'mon' now? 62 * See bug 844784 comment 27. 63 */ 64 PR_DestroyMonitor(mon); 65 66 rv = PR_JoinThread(thread); 67 PR_ASSERT(rv == PR_SUCCESS); 68 69 printf("PASS\n"); 70 return 0; 71 }