1 /* 2 * File: condvar5.c 3 * 4 * 5 * -------------------------------------------------------------------------- 6 * 7 * Pthreads-embedded (PTE) - POSIX Threads Library for embedded systems 8 * Copyright(C) 2008 Jason Schmidlapp 9 * 10 * Contact Email: jschmidlapp@users.sourceforge.net 11 * 12 * 13 * Based upon Pthreads-win32 - POSIX Threads Library for Win32 14 * Copyright(C) 1998 John E. Bossom 15 * Copyright(C) 1999,2005 Pthreads-win32 contributors 16 * 17 * Contact Email: rpj@callisto.canberra.edu.au 18 * 19 * The original list of contributors to the Pthreads-win32 project 20 * is contained in the file CONTRIBUTORS.ptw32 included with the 21 * source code distribution. The list can also be seen at the 22 * following World Wide Web location: 23 * http://sources.redhat.com/pthreads-win32/contributors.html 24 * 25 * This library is free software; you can redistribute it and/or 26 * modify it under the terms of the GNU Lesser General Public 27 * License as published by the Free Software Foundation; either 28 * version 2 of the License, or (at your option) any later version. 29 * 30 * This library is distributed in the hope that it will be useful, 31 * but WITHOUT ANY WARRANTY; without even the implied warranty of 32 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 33 * Lesser General Public License for more details. 34 * 35 * You should have received a copy of the GNU Lesser General Public 36 * License along with this library in the file COPYING.LIB; 37 * if not, write to the Free Software Foundation, Inc., 38 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA 39 * 40 * -------------------------------------------------------------------------- 41 * 42 * Test Synopsis: 43 * - Test pthread_cond_broadcast. 44 * 45 * Test Method (Validation or Falsification): 46 * - Validation 47 * 48 * Requirements Tested: 49 * - 50 * 51 * Features Tested: 52 * - 53 * 54 * Cases Tested: 55 * - 56 * 57 * Description: 58 * - Test broadcast with one waiting CV. 59 * 60 * Environment: 61 * - 62 * 63 * Input: 64 * - None. 65 * 66 * Output: 67 * - File name, Line number, and failed expression on failure. 68 * - No output on success. 69 * 70 * Assumptions: 71 * - 72 * 73 * Pass Criteria: 74 * - pthread_cond_timedwait returns 0. 75 * - Process returns zero exit status. 76 * 77 * Fail Criteria: 78 * - pthread_cond_timedwait returns ETIMEDOUT. 79 * - Process returns non-zero exit status. 80 */ 81 82 #include "test.h" 83 84 85 typedef struct cvthing_t_ cvthing_t; 86 87 struct cvthing_t_ 88 { 89 pthread_cond_t notbusy; 90 pthread_mutex_t lock; 91 int shared; 92 }; 93 94 static cvthing_t cvthing = 95 { 96 PTHREAD_COND_INITIALIZER, 97 PTHREAD_MUTEX_INITIALIZER, 98 0 99 }; 100 101 enum 102 { 103 NUMTHREADS = 2 104 }; 105 106 static void * 107 mythread(void * arg) 108 { 109 assert(pthread_mutex_lock(&cvthing.lock) == 0); 110 cvthing.shared++; 111 assert(pthread_mutex_unlock(&cvthing.lock) == 0); 112 113 assert(pthread_cond_broadcast(&cvthing.notbusy) == 0); 114 115 return (void *) 0; 116 } 117 118 int pthread_test_condvar5() 119 { 120 pthread_t t[NUMTHREADS]; 121 struct timespec abstime = 122 { 123 0, 0 124 }; 125 struct _timeb currSysTime; 126 const unsigned int NANOSEC_PER_MILLISEC = 1000000; 127 128 cvthing.notbusy = PTHREAD_COND_INITIALIZER; 129 cvthing.lock = PTHREAD_MUTEX_INITIALIZER; 130 131 cvthing.shared = 0; 132 133 assert((t[0] = pthread_self()).p != NULL); 134 135 assert(cvthing.notbusy == PTHREAD_COND_INITIALIZER); 136 137 assert(cvthing.lock == PTHREAD_MUTEX_INITIALIZER); 138 139 assert(pthread_mutex_lock(&cvthing.lock) == 0); 140 141 assert(cvthing.lock != PTHREAD_MUTEX_INITIALIZER); 142 143 /* get current system time */ 144 _ftime(&currSysTime); 145 146 abstime.tv_sec = currSysTime.time; 147 abstime.tv_nsec = NANOSEC_PER_MILLISEC * currSysTime.millitm; 148 149 abstime.tv_sec += 5; 150 151 assert(pthread_cond_timedwait(&cvthing.notbusy, &cvthing.lock, &abstime) == ETIMEDOUT); 152 153 assert(cvthing.notbusy != PTHREAD_COND_INITIALIZER); 154 155 assert(pthread_create(&t[1], NULL, mythread, (void *) 1) == 0); 156 157 _ftime(&currSysTime); 158 159 abstime.tv_sec = currSysTime.time; 160 abstime.tv_nsec = NANOSEC_PER_MILLISEC * currSysTime.millitm; 161 162 abstime.tv_sec += 5; 163 164 while (! (cvthing.shared > 0)) 165 assert(pthread_cond_timedwait(&cvthing.notbusy, &cvthing.lock, &abstime) == 0); 166 167 assert(cvthing.shared > 0); 168 169 assert(pthread_mutex_unlock(&cvthing.lock) == 0); 170 171 assert(pthread_join(t[1], NULL) == 0); 172 173 assert(pthread_mutex_destroy(&cvthing.lock) == 0); 174 175 assert(cvthing.lock == NULL); 176 177 assert(pthread_cond_destroy(&cvthing.notbusy) == 0); 178 179 assert(cvthing.notbusy == NULL); 180 181 return 0; 182 } 183