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 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 intptr_t result = (((intptr_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 (void *) (size_t) 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 ()) != 0);
130 assert(pthread_gethandle (t[0]) != NULL);
131
132 for (i = 1; i <= NUMTHREADS; i++)
133 {
134 threadbag[i].started = 0;
135 threadbag[i].threadnum = i;
136 assert (pthread_create (&t[i], NULL, mythread, (void *) &threadbag[i])
137 == 0);
138 }
139
140 /*
141 * Code to control or munipulate child threads should probably go here.
142 */
143 Sleep (500);
144
145 for (i = 1; i <= NUMTHREADS; i++)
146 {
147 assert (pthread_cancel (t[i]) == 0);
148 }
149
150 /*
151 * Give threads time to run.
152 */
153 Sleep (NUMTHREADS * 100);
154
155 /*
156 * Standard check that all threads started.
157 */
158 for (i = 1; i <= NUMTHREADS; i++)
159 {
160 if (!threadbag[i].started)
161 {
162 failed |= !threadbag[i].started;
163 fprintf (stderr, "Thread %d: started %d\n", i,
164 threadbag[i].started);
165 }
166 }
167
168 assert (!failed);
169
170 /*
171 * Check any results here. Set "failed" and only print output on failure.
172 */
173 failed = 0;
174 for (i = 1; i <= NUMTHREADS; i++)
175 {
176 int fail = 0;
177 intptr_t result = 0;
178
179 /*
180 * The thread does not contain any cancelation points, so
181 * a return value of PTHREAD_CANCELED confirms that async
182 * cancelation succeeded.
183 */
184 assert (pthread_join (t[i], (void **) &result) == 0);
185
186 fail = (result != (intptr_t) PTHREAD_CANCELED);
187
188 if (fail)
189 {
190 fprintf (stderr, "Thread %d: started %d: count %d\n",
191 i, threadbag[i].started, threadbag[i].count);
192 }
193 failed = (failed || fail);
194 }
195
196 assert (!failed);
197
198 /*
199 * Success.
200 */
201 return 0;
202 }
203