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 there aren't any more queued signals
9 for the selected signal, then the pending indication of that signal is
10 reset.
11
12 Steps:
13 - Register for myhandler to be called when SIGTOTEST is called, and make
14 sure SA_SIGINFO is set.
15 - Block signal SIGTOTEST from the process.
16 - Using sigqueue(), send NUMCALLS instances of SIGTOTEST to the current
17 process.
18 - Call sigwaitinfo() NUMCALLS times, and verify that the pending indication
19 for signal SIGTOTEST has been reset.
20
21 */
22
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
myhandler(int signo PTS_ATTRIBUTE_UNUSED,siginfo_t * info PTS_ATTRIBUTE_UNUSED,void * context PTS_ATTRIBUTE_UNUSED)34 static void myhandler(int signo PTS_ATTRIBUTE_UNUSED,
35 siginfo_t *info PTS_ATTRIBUTE_UNUSED,
36 void *context PTS_ATTRIBUTE_UNUSED)
37 {
38 printf("Just a dummy handler\n");
39 }
40
main(void)41 int main(void)
42 {
43 int pid, i;
44 union sigval value;
45 struct sigaction act;
46 sigset_t selectset, pendingset;
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 }
77
78 sigemptyset(&pendingset);
79 sigpending(&pendingset);
80 if (sigismember(&pendingset, SIGTOTEST) != 0) {
81 printf
82 ("Test FAILED: Signal %d still pending even after call to sigwaitinfo()\n",
83 SIGTOTEST);
84 return PTS_FAIL;
85 }
86
87 return PTS_PASS;
88 }
89