3-1.c revision 2c28215423293e443469a07ae7011135d058b671 
1#include <signal.h>
2#include <stdio.h>
3#include "posixtest.h"
4
5/*
6
7 * Copyright (c) 2002, Intel Corporation. All rights reserved.
8 * Created by:  rolla.n.selbak REMOVE-THIS AT intel DOT com
9 * This file is licensed under the GPL license.  For the full content
10 * of this license, see the COPYING file at the top level of this
11 * source tree.
12
13 *  Test that the sigwait() function.
14 *  If prior to the call to sigwait() there are multiple pending instances of
15 *  a single signal number (and it is implementation-defined that the signal
16 *  number DOES NOT support queued signals), then there should be no remaining
17 *  pending signals for that signal number.
18 *  Steps are:
19 *  1)  Block a signal that doesn't support queueing from delivery.
20 *  2)  Raise that signal 4 times.
21 *  3)  Call sigwait()
22 *  4)  Verify it cleared the signal from the pending signals and there
23 *      are no signals left in the pending list.
24 *
25 */
26
27int main()
28{
29	sigset_t newmask, pendingset;
30	int sig;
31
32	/* Empty set of blocked signals */
33	if ((sigemptyset(&newmask) == -1) ||
34	    (sigemptyset(&pendingset) == -1))
35	{
36		printf("Error in sigemptyset()\n");
37		return PTS_UNRESOLVED;
38	}
39
40	/* Add SIGALRM to the set of blocked signals */
41	if (sigaddset(&newmask, SIGALRM) == -1)
42	{
43		perror("Error in sigaddset()\n");
44		return PTS_UNRESOLVED;
45	}
46
47	/* Block SIGALRM */
48	if (sigprocmask(SIG_SETMASK, &newmask, NULL) == -1)
49	{
50		printf("Error in sigprocmask()\n");
51		return PTS_UNRESOLVED;
52	}
53
54	/* Send SIGALRM signal 4 times to this process.  Since it is blocked,
55	 * it should be pending. */
56	if (raise(SIGALRM) != 0) {
57		printf("Could not raise SIGALRM\n");
58		return PTS_UNRESOLVED;
59	}
60	if (raise(SIGALRM) != 0) {
61		printf("Could not raise SIGALRM\n");
62		return PTS_UNRESOLVED;
63	}
64	if (raise(SIGALRM) != 0) {
65		printf("Could not raise SIGALRM\n");
66		return PTS_UNRESOLVED;
67	}
68	if (raise(SIGALRM) != 0) {
69		printf("Could not raise SIGALRM\n");
70		return PTS_UNRESOLVED;
71	}
72
73	/* Obtain a set of pending signals */
74	if (sigpending(&pendingset) == -1) {
75		printf("Error calling sigpending()\n");
76		return PTS_UNRESOLVED;
77	}
78
79	/* Make sure SIGALRM is pending */
80	if (sigismember(&pendingset, SIGALRM) == 0) {
81		printf("Error: signal SIGALRM not pending\n");
82		return PTS_UNRESOLVED;
83	}
84
85	/* Call sigwait */
86	if (sigwait(&newmask, &sig) != 0)
87	{
88		printf("Error in sigwait\n");
89		return PTS_UNRESOLVED;
90	}
91
92	/* Make sure SIGALRM is not in the pending list anymore */
93	if (sigpending(&pendingset) == -1) {
94		printf("Error calling sigpending()\n");
95		return PTS_UNRESOLVED;
96	}
97
98	if (sigismember(&pendingset, SIGALRM) == 1)
99	{
100		printf("Test FAILED\n");
101		return PTS_FAIL;
102	}
103
104	printf("Test PASSED\n");
105	return PTS_PASS;
106
107}