1 /* 2 * File: errno1.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: Test thread-safety of errno 43 * - 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 * - 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 * - Process returns zero exit status. 75 * 76 * Fail Criteria: 77 * - Process returns non-zero exit status. 78 */ 79 80 #include "test.h" 81 82 /* 83 * Create NUMTHREADS threads in addition to the Main thread. 84 */ 85 enum 86 { 87 NUMTHREADS = 3 88 }; 89 90 typedef struct bag_t_ bag_t; 91 struct bag_t_ 92 { 93 int threadnum; 94 int started; 95 /* Add more per-thread state variables here */ 96 }; 97 98 static bag_t threadbag[NUMTHREADS + 1]; 99 100 static pthread_mutex_t stop_here = PTHREAD_MUTEX_INITIALIZER; 101 102 static void * 103 mythread(void * arg) 104 { 105 bag_t * bag = (bag_t *) arg; 106 107 assert(bag == &threadbag[bag->threadnum]); 108 assert(bag->started == 0); 109 bag->started = 1; 110 111 errno = bag->threadnum; 112 113 pte_osThreadSleep(1000); 114 115 pthread_mutex_lock(&stop_here); 116 117 assert(errno == bag->threadnum); 118 119 pthread_mutex_unlock(&stop_here); 120 121 pte_osThreadSleep(1000); 122 123 return 0; 124 } 125 126 int pthread_test_errno1() 127 { 128 int failed = 0; 129 int i; 130 pthread_t t[NUMTHREADS + 1]; 131 132 pthread_mutex_lock(&stop_here); 133 errno = 0; 134 135 assert((t[0] = pthread_self()).p != NULL); 136 137 for (i = 1; i <= NUMTHREADS; i++) 138 { 139 threadbag[i].started = 0; 140 threadbag[i].threadnum = i; 141 assert(pthread_create(&t[i], NULL, mythread, (void *) &threadbag[i]) == 0); 142 } 143 144 /* 145 * Code to control or munipulate child threads should probably go here. 146 */ 147 pte_osThreadSleep(2000); 148 pthread_mutex_unlock(&stop_here); 149 150 /* 151 * Give threads time to run. 152 */ 153 pte_osThreadSleep(NUMTHREADS * 1000); 154 155 /* 156 * Standard check that all threads started. 157 */ 158 for (i = 1; i <= NUMTHREADS; i++) 159 { 160 failed = !threadbag[i].started; 161 } 162 163 assert(!failed); 164 165 /* 166 * Check any results here. Set "failed" and only print ouput on failure. 167 */ 168 for (i = 1; i <= NUMTHREADS; i++) 169 { 170 /* ... */ 171 } 172 173 assert(!failed); 174 175 /* 176 * Success. 177 */ 178 return 0; 179 } 180