1 /*
2 * File: cancel3.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 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
33 *
34 * --------------------------------------------------------------------------
35 *
36 * Test Synopsis: Test asynchronous cancelation (alertable or non-alertable).
37 *
38 * Test Method (Validation or Falsification):
39 * -
40 *
41 * Requirements Tested:
42 * - Async cancel if thread is not blocked (i.e. voluntarily resumes if blocked).
43 *
44 * Features Tested:
45 * -
46 *
47 * Cases Tested:
48 * -
49 *
50 * Description:
51 * -
52 *
53 * Environment:
54 * -
55 *
56 * Input:
57 * - None.
58 *
59 * Output:
60 * - File name, Line number, and failed expression on failure.
61 * - No output on success.
62 *
63 * Assumptions:
64 * - have working pthread_create, pthread_self, pthread_mutex_lock/unlock
65 * pthread_testcancel, pthread_cancel, pthread_join.
66 * - quserex.dll and alertdrv.sys are not available.
67 *
68 * Pass Criteria:
69 * - Process returns zero exit status.
70 *
71 * Fail Criteria:
72 * - Process returns non-zero exit status.
73 */
74
75 #include "test.h"
76
77 /*
78 * Create NUMTHREADS threads in addition to the Main thread.
79 */
80 enum
81 {
82 NUMTHREADS = 4
83 };
84
85 typedef struct bag_t_ bag_t;
86 struct bag_t_
87 {
88 int threadnum;
89 int started;
90 /* Add more per-thread state variables here */
91 int count;
92 };
93
94 static bag_t threadbag[NUMTHREADS + 1];
95
96 void *
mythread(void * arg)97 mythread (void *arg)
98 {
99 void* result = (void*)((int)(size_t)PTHREAD_CANCELED + 1);
100 bag_t *bag = (bag_t *) arg;
101
102 assert (bag == &threadbag[bag->threadnum]);
103 assert (bag->started == 0);
104 bag->started = 1;
105
106 /* Set to known state and type */
107
108 assert (pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, NULL) == 0);
109
110 assert (pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, NULL) == 0);
111
112 /*
113 * We wait up to 10 seconds, waking every 0.1 seconds,
114 * for a cancelation to be applied to us.
115 */
116 for (bag->count = 0; bag->count < 100; bag->count++)
117 Sleep (100);
118
119 return result;
120 }
121
122 int
main()123 main ()
124 {
125 int failed = 0;
126 int i;
127 pthread_t t[NUMTHREADS + 1];
128
129 assert ((t[0] = pthread_self ()).p != 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])
136 == 0);
137 }
138
139 /*
140 * Code to control or munipulate child threads should probably go here.
141 */
142 Sleep (NUMTHREADS * 100);
143
144 for (i = 1; i <= NUMTHREADS; i++)
145 {
146 assert (pthread_cancel (t[i]) == 0);
147 }
148
149 /*
150 * Give threads time to complete.
151 */
152 Sleep (NUMTHREADS * 100);
153
154 /*
155 * Standard check that all threads started.
156 */
157 for (i = 1; i <= NUMTHREADS; i++)
158 {
159 if (!threadbag[i].started)
160 {
161 failed |= !threadbag[i].started;
162 fprintf (stderr, "Thread %d: started %d\n", i,
163 threadbag[i].started);
164 }
165 }
166
167 assert (!failed);
168
169 /*
170 * Check any results here. Set "failed" and only print output on failure.
171 */
172 failed = 0;
173 for (i = 1; i <= NUMTHREADS; i++)
174 {
175 int fail = 0;
176 void* result = (void*)0;
177
178 /*
179 * The thread does not contain any cancelation points, so
180 * a return value of PTHREAD_CANCELED confirms that async
181 * cancelation succeeded.
182 */
183 assert (pthread_join (t[i], &result) == 0);
184
185 fail = (result != PTHREAD_CANCELED);
186
187 if (fail)
188 {
189 fprintf (stderr, "Thread %d: started %d: count %d\n",
190 i, threadbag[i].started, threadbag[i].count);
191 }
192 failed = (failed || fail);
193 }
194
195 assert (!failed);
196
197 /*
198 * Success.
199 */
200 return 0;
201 }
202