1/*
2 * Copyright (c) 2002-2003, Intel Corporation. All rights reserved.
3 * Created by:  salwan.searty REMOVE-THIS AT intel DOT com
4 * This file is licensed under the GPL license.  For the full content
5 * of this license, see the COPYING file at the top level of this
6 * source tree.
7
8 This program tests the assertion that if SA_SIGINFO is set, then the
9 signal shall be queued to the receiving process and that sigqueue returns 0.
10
11 Steps:
12 - Register for myhandler to be called when SIGTOTEST is called, and make
13   sure SA_SIGINFO is set.
14 - Block signal SIGTOTEST from the process.
15 - Using sigqueue(), send NUMCALLS instances of SIGTOTEST to the current
16   process.
17 - Call sigwaitinfo() NUMCALLS times, and verify that the queued signals are
18   selected in FIFO order.
19
20 */
21
22#define _XOPEN_SOURCE 600
23#define _XOPEN_REALTIME 1
24#define SIGTOTEST SIGRTMIN
25#define NUMCALLS 5
26
27#include <signal.h>
28#include <stdio.h>
29#include <unistd.h>
30#include <stdlib.h>
31#include <errno.h>
32#include "posixtest.h"
33
34int counter = 0;
35
36void myhandler(int signo, siginfo_t * info, void *context)
37{
38	counter++;
39}
40
41int main(void)
42{
43	int pid, i;
44	union sigval value;
45	struct sigaction act;
46	sigset_t selectset;
47	siginfo_t info;
48
49	act.sa_flags = SA_SIGINFO;
50	act.sa_sigaction = myhandler;
51	sigemptyset(&act.sa_mask);
52	sigaction(SIGTOTEST, &act, 0);
53
54	pid = getpid();
55
56	sighold(SIGTOTEST);
57
58	for (i = NUMCALLS; i > 0; i--) {
59		value.sival_int = i;
60		if (sigqueue(pid, SIGTOTEST, value) != 0) {
61			printf
62			    ("Test FAILED: call to sigqueue did not return success\n");
63			return PTS_FAIL;
64		}
65	}
66
67	sigemptyset(&selectset);
68	sigaddset(&selectset, SIGTOTEST);
69
70	for (i = NUMCALLS; i > 0; i--) {
71		if (sigwaitinfo(&selectset, &info) != SIGTOTEST) {
72			perror
73			    ("sigwaitinfo() returned signal other than SIGTOTEST\n");
74			return PTS_UNRESOLVED;
75		}
76		if (info.si_value.sival_int != i) {
77			printf
78			    ("Test FAILED: The queued value %d was dequeued before "
79			     "the queued value %d even though %d was queued first.\n",
80			     info.si_value.sival_int, i, i);
81			return PTS_FAIL;
82		}
83	}
84
85	return PTS_PASS;
86}
87