intrio.c (3624B)
1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 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 * File: intrio.c 8 * Purpose: testing i/o interrupts (see Bugzilla bug #31120) 9 */ 10 11 #include "nspr.h" 12 13 #include <stdio.h> 14 #include <stdlib.h> 15 #include <string.h> 16 17 /* for synchronization between the main thread and iothread */ 18 static PRLock* lock; 19 static PRCondVar* cvar; 20 static PRBool iothread_ready; 21 22 static void PR_CALLBACK AbortIO(void* arg) { 23 PRStatus rv; 24 PR_Sleep(PR_SecondsToInterval(2)); 25 rv = PR_Interrupt((PRThread*)arg); 26 PR_ASSERT(PR_SUCCESS == rv); 27 } /* AbortIO */ 28 29 static void PR_CALLBACK IOThread(void* arg) { 30 PRFileDesc *sock, *newsock; 31 PRNetAddr addr; 32 33 sock = PR_OpenTCPSocket(PR_AF_INET6); 34 if (sock == NULL) { 35 fprintf(stderr, "PR_OpenTCPSocket failed\n"); 36 exit(1); 37 } 38 memset(&addr, 0, sizeof(addr)); 39 if (PR_SetNetAddr(PR_IpAddrAny, PR_AF_INET6, 0, &addr) == PR_FAILURE) { 40 fprintf(stderr, "PR_SetNetAddr failed\n"); 41 exit(1); 42 } 43 if (PR_Bind(sock, &addr) == PR_FAILURE) { 44 fprintf(stderr, "PR_Bind failed\n"); 45 exit(1); 46 } 47 if (PR_Listen(sock, 5) == PR_FAILURE) { 48 fprintf(stderr, "PR_Listen failed\n"); 49 exit(1); 50 } 51 /* tell the main thread that we are ready */ 52 PR_Lock(lock); 53 iothread_ready = PR_TRUE; 54 PR_NotifyCondVar(cvar); 55 PR_Unlock(lock); 56 newsock = PR_Accept(sock, NULL, PR_INTERVAL_NO_TIMEOUT); 57 if (newsock != NULL) { 58 fprintf(stderr, "PR_Accept shouldn't have succeeded\n"); 59 exit(1); 60 } 61 if (PR_GetError() != PR_PENDING_INTERRUPT_ERROR) { 62 fprintf(stderr, "PR_Accept failed (%d, %d)\n", PR_GetError(), 63 PR_GetOSError()); 64 exit(1); 65 } 66 printf("PR_Accept() is interrupted as expected\n"); 67 if (PR_Close(sock) == PR_FAILURE) { 68 fprintf(stderr, "PR_Close failed\n"); 69 exit(1); 70 } 71 } 72 73 static void Test(PRThreadScope scope1, PRThreadScope scope2) { 74 PRThread *iothread, *abortio; 75 76 printf("A %s thread will be interrupted by a %s thread\n", 77 (scope1 == PR_LOCAL_THREAD ? "local" : "global"), 78 (scope2 == PR_LOCAL_THREAD ? "local" : "global")); 79 iothread_ready = PR_FALSE; 80 iothread = PR_CreateThread(PR_USER_THREAD, IOThread, NULL, PR_PRIORITY_NORMAL, 81 scope1, PR_JOINABLE_THREAD, 0); 82 if (iothread == NULL) { 83 fprintf(stderr, "cannot create thread\n"); 84 exit(1); 85 } 86 PR_Lock(lock); 87 while (!iothread_ready) { 88 PR_WaitCondVar(cvar, PR_INTERVAL_NO_TIMEOUT); 89 } 90 PR_Unlock(lock); 91 abortio = PR_CreateThread(PR_USER_THREAD, AbortIO, iothread, 92 PR_PRIORITY_NORMAL, scope2, PR_JOINABLE_THREAD, 0); 93 if (abortio == NULL) { 94 fprintf(stderr, "cannot create thread\n"); 95 exit(1); 96 } 97 if (PR_JoinThread(iothread) == PR_FAILURE) { 98 fprintf(stderr, "PR_JoinThread failed\n"); 99 exit(1); 100 } 101 if (PR_JoinThread(abortio) == PR_FAILURE) { 102 fprintf(stderr, "PR_JoinThread failed\n"); 103 exit(1); 104 } 105 } 106 107 int main(int argc, char** argv) { 108 lock = PR_NewLock(); 109 if (lock == NULL) { 110 fprintf(stderr, "PR_NewLock failed\n"); 111 exit(1); 112 } 113 cvar = PR_NewCondVar(lock); 114 if (cvar == NULL) { 115 fprintf(stderr, "PR_NewCondVar failed\n"); 116 exit(1); 117 } 118 /* test all four combinations */ 119 Test(PR_LOCAL_THREAD, PR_LOCAL_THREAD); 120 Test(PR_LOCAL_THREAD, PR_GLOBAL_THREAD); 121 Test(PR_GLOBAL_THREAD, PR_LOCAL_THREAD); 122 Test(PR_GLOBAL_THREAD, PR_GLOBAL_THREAD); 123 printf("PASSED\n"); 124 return 0; 125 } /* main */