1 /*
2 * File: errno1.c
3 *
4 *
5 * --------------------------------------------------------------------------
6 *
7 * Pthreads-win32 - POSIX Threads Library for Win32
8 * Copyright(C) 1998 John E. Bossom
9 * Copyright(C) 1999,2005 Pthreads-win32 contributors
10 *
11 * Contact Email: rpj@callisto.canberra.edu.au
12 *
13 * The current list of contributors is contained
14 * in the file CONTRIBUTORS included with the source
15 * code distribution. The list can also be seen at the
16 * following World Wide Web location:
17 * http://sources.redhat.com/pthreads-win32/contributors.html
18 *
19 * This library is free software; you can redistribute it and/or
20 * modify it under the terms of the GNU Lesser General Public
21 * License as published by the Free Software Foundation; either
22 * version 2 of the License, or (at your option) any later version.
23 *
24 * This library is distributed in the hope that it will be useful,
25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
27 * Lesser General Public License for more details.
28 *
29 * You should have received a copy of the GNU Lesser General Public
30 * License along with this library in the file COPYING.LIB;
31 * if not, write to the Free Software Foundation, Inc.,
32 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
33 *
34 * --------------------------------------------------------------------------
35 *
36 * Test Synopsis: Test thread-safety of errno
37 * -
38 *
39 * Test Method (Validation or Falsification):
40 * - Validation
41 *
42 * Requirements Tested:
43 * -
44 *
45 * Features Tested:
46 * -
47 *
48 * Cases Tested:
49 * -
50 *
51 * Description:
52 * -
53 *
54 * Environment:
55 * -
56 *
57 * Input:
58 * - None.
59 *
60 * Output:
61 * - File name, Line number, and failed expression on failure.
62 * - No output on success.
63 *
64 * Assumptions:
65 * -
66 *
67 * Pass Criteria:
68 * - Process returns zero exit status.
69 *
70 * Fail Criteria:
71 * - Process returns non-zero exit status.
72 */
73
74 #include "test.h"
75
76 /*
77 * Create NUMTHREADS threads in addition to the Main thread.
78 */
79 enum {
80 NUMTHREADS = 3
81 };
82
83 typedef struct bag_t_ bag_t;
84 struct bag_t_ {
85 int threadnum;
86 int started;
87 /* Add more per-thread state variables here */
88 };
89
90 static bag_t threadbag[NUMTHREADS + 1];
91
92 pthread_mutex_t stop_here = PTHREAD_MUTEX_INITIALIZER;
93
94 void *
mythread(void * arg)95 mythread(void * arg)
96 {
97 bag_t * bag = (bag_t *) arg;
98
99 assert(bag == &threadbag[bag->threadnum]);
100 assert(bag->started == 0);
101 bag->started = 1;
102
103 errno = bag->threadnum;
104
105 Sleep(1000);
106
107 pthread_mutex_lock(&stop_here);
108
109 assert(errno == bag->threadnum);
110
111 pthread_mutex_unlock(&stop_here);
112
113 Sleep(1000);
114
115 return 0;
116 }
117
118 int
main()119 main()
120 {
121 int failed = 0;
122 int i;
123 pthread_t t[NUMTHREADS + 1];
124
125 pthread_mutex_lock(&stop_here);
126 errno = 0;
127
128 assert((t[0] = pthread_self()) != 0);
129 assert(pthread_gethandle (t[0]) != NULL);
130
131 for (i = 1; i <= NUMTHREADS; i++)
132 {
133 threadbag[i].started = 0;
134 threadbag[i].threadnum = i;
135 assert(pthread_create(&t[i], NULL, mythread, (void *) &threadbag[i]) == 0);
136 }
137
138 /*
139 * Code to control or munipulate child threads should probably go here.
140 */
141 Sleep(2000);
142 pthread_mutex_unlock(&stop_here);
143
144 /*
145 * Give threads time to run.
146 */
147 Sleep(NUMTHREADS * 1000);
148
149 /*
150 * Standard check that all threads started.
151 */
152 for (i = 1; i <= NUMTHREADS; i++)
153 {
154 failed = !threadbag[i].started;
155
156 if (failed)
157 {
158 fprintf(stderr, "Thread %d: started %d\n", i, threadbag[i].started);
159 }
160 }
161
162 assert(!failed);
163
164 /*
165 * Check any results here. Set "failed" and only print ouput on failure.
166 */
167 for (i = 1; i <= NUMTHREADS; i++)
168 {
169 /* ... */
170 }
171
172 assert(!failed);
173
174 /*
175 * Success.
176 */
177 return 0;
178 }
179