1 /*
2 * File: priority1.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:
37 * - Test thread priority explicit setting using thread attribute.
38 *
39 * Test Method (Validation or Falsification):
40 * -
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 enum {
77 PTW32TEST_THREAD_INIT_PRIO = 0,
78 PTW32TEST_MAXPRIORITIES = 512
79 };
80
81 int minPrio;
82 int maxPrio;
83 int validPriorities[PTW32TEST_MAXPRIORITIES];
84
85 void *
func(void * arg)86 func(void * arg)
87 {
88 int policy;
89 struct sched_param param;
90 pthread_t threadID = pthread_self();
91
92 assert(pthread_getschedparam(threadID, &policy, ¶m) == 0);
93 assert(policy == SCHED_OTHER);
94 return (void *) (size_t) (param.sched_priority);
95 }
96
97 void *
getValidPriorities(void * arg)98 getValidPriorities(void * arg)
99 {
100 int prioSet;
101 pthread_t threadID = pthread_self();
102 HANDLE threadH = pthread_getw32threadhandle_np(threadID);
103
104 printf("Using GetThreadPriority\n");
105 printf("%10s %10s\n", "Set value", "Get value");
106
107 for (prioSet = minPrio;
108 prioSet <= maxPrio;
109 prioSet++)
110 {
111 /*
112 * If prioSet is invalid then the threads priority is unchanged
113 * from the previous value. Make the previous value a known
114 * one so that we can check later.
115 */
116 if (prioSet < 0)
117 SetThreadPriority(threadH, THREAD_PRIORITY_LOWEST);
118 else
119 SetThreadPriority(threadH, THREAD_PRIORITY_HIGHEST);
120 SetThreadPriority(threadH, prioSet);
121 validPriorities[prioSet+(PTW32TEST_MAXPRIORITIES/2)] = GetThreadPriority(threadH);
122 printf("%10d %10d\n", prioSet, validPriorities[prioSet+(PTW32TEST_MAXPRIORITIES/2)]);
123 }
124
125 return (void *) 0;
126 }
127
128
129 int
main()130 main()
131 {
132 pthread_t t;
133 pthread_attr_t attr;
134 void * result = NULL;
135 struct sched_param param;
136
137 assert((maxPrio = sched_get_priority_max(SCHED_OTHER)) != -1);
138 assert((minPrio = sched_get_priority_min(SCHED_OTHER)) != -1);
139
140 assert(pthread_create(&t, NULL, getValidPriorities, NULL) == 0);
141 assert(pthread_join(t, &result) == 0);
142
143 assert(pthread_attr_init(&attr) == 0);
144 assert(pthread_attr_setinheritsched(&attr, PTHREAD_EXPLICIT_SCHED) == 0);
145
146 /* Set the thread's priority to a known initial value. */
147 SetThreadPriority(pthread_getw32threadhandle_np(pthread_self()),
148 PTW32TEST_THREAD_INIT_PRIO);
149
150 printf("Using pthread_getschedparam\n");
151 printf("%10s %10s %10s\n", "Set value", "Get value", "Win priority");
152
153 for (param.sched_priority = minPrio;
154 param.sched_priority <= maxPrio;
155 param.sched_priority++)
156 {
157 int prio;
158
159 assert(pthread_attr_setschedparam(&attr, ¶m) == 0);
160 assert(pthread_create(&t, &attr, func, (void *) &attr) == 0);
161
162 assert((prio = GetThreadPriority(pthread_getw32threadhandle_np(t)))
163 == validPriorities[param.sched_priority+(PTW32TEST_MAXPRIORITIES/2)]);
164
165 assert(pthread_join(t, &result) == 0);
166
167 assert(param.sched_priority == (int) (size_t) result);
168 printf("%10d %10d %10d\n", param.sched_priority, (int) (size_t) result, prio);
169 }
170
171 return 0;
172 }
173