1 #include "test.h"
2
3 enum {
4 PTW32TEST_THREAD_INIT_PRIO = 0,
5 PTW32TEST_MAXPRIORITIES = 512
6 };
7
8 int minPrio;
9 int maxPrio;
10 int validPriorities[PTW32TEST_MAXPRIORITIES];
11
12
func(void * arg)13 void * func(void * arg)
14 {
15 int policy;
16 struct sched_param param;
17
18 assert(pthread_getschedparam(pthread_self(), &policy, ¶m) == 0);
19 return (void *) (size_t) param.sched_priority;
20 }
21
22
23 void *
getValidPriorities(void * arg)24 getValidPriorities(void * arg)
25 {
26 int prioSet;
27 pthread_t thread = pthread_self();
28 HANDLE threadH = pthread_getw32threadhandle_np(thread);
29 struct sched_param param;
30
31 for (prioSet = minPrio;
32 prioSet <= maxPrio;
33 prioSet++)
34 {
35 /*
36 * If prioSet is invalid then the threads priority is unchanged
37 * from the previous value. Make the previous value a known
38 * one so that we can check later.
39 */
40 param.sched_priority = prioSet;
41 assert(pthread_setschedparam(thread, SCHED_OTHER, ¶m) == 0);
42 validPriorities[prioSet+(PTW32TEST_MAXPRIORITIES/2)] = GetThreadPriority(threadH);
43 }
44
45 return (void *) 0;
46 }
47
48
49 int
main()50 main()
51 {
52 pthread_t t;
53 pthread_t mainThread = pthread_self();
54 pthread_attr_t attr;
55 void * result = NULL;
56 struct sched_param param;
57 struct sched_param mainParam;
58 int prio;
59 int policy;
60 int inheritsched = -1;
61 pthread_t threadID = pthread_self();
62 HANDLE threadH = pthread_getw32threadhandle_np(threadID);
63
64 assert((maxPrio = sched_get_priority_max(SCHED_OTHER)) != -1);
65 assert((minPrio = sched_get_priority_min(SCHED_OTHER)) != -1);
66
67 assert(pthread_create(&t, NULL, getValidPriorities, NULL) == 0);
68 assert(pthread_join(t, &result) == 0);
69
70 assert(pthread_attr_init(&attr) == 0);
71 assert(pthread_attr_setinheritsched(&attr, PTHREAD_INHERIT_SCHED) == 0);
72 assert(pthread_attr_getinheritsched(&attr, &inheritsched) == 0);
73 assert(inheritsched == PTHREAD_INHERIT_SCHED);
74
75 for (prio = minPrio; prio <= maxPrio; prio++)
76 {
77 mainParam.sched_priority = prio;
78
79 /* Set the thread's priority to a known initial value. */
80 SetThreadPriority(threadH, PTW32TEST_THREAD_INIT_PRIO);
81
82 /* Change the main thread priority */
83 assert(pthread_setschedparam(mainThread, SCHED_OTHER, &mainParam) == 0);
84 assert(pthread_getschedparam(mainThread, &policy, &mainParam) == 0);
85 assert(policy == SCHED_OTHER);
86 /* Priority returned below should be the level set by pthread_setschedparam(). */
87 assert(mainParam.sched_priority == prio);
88 assert(GetThreadPriority(threadH) ==
89 validPriorities[prio+(PTW32TEST_MAXPRIORITIES/2)]);
90 if (prio > minPrio && validPriorities[prio+(PTW32TEST_MAXPRIORITIES/2)] ==
91 validPriorities[prio-1+(PTW32TEST_MAXPRIORITIES/2)])
92 continue;
93 for (param.sched_priority = prio;
94 param.sched_priority <= maxPrio;
95 param.sched_priority++)
96 {
97 /* The new thread create should ignore this new priority */
98 assert(pthread_attr_setschedparam(&attr, ¶m) == 0);
99 assert(pthread_create(&t, &attr, func, NULL) == 0);
100 pthread_join(t, &result);
101 assert(((int) (size_t) result) == mainParam.sched_priority);
102 }
103 fprintf(stderr, "."); fflush(stderr);
104 }
105
106 return 0;
107 }
108