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 - Verify that the handler is executed NUMCALLS times AFTER SIGTOTEST
18 is unblocked.
19 - Verify that sigqueue returns 0.
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
34 int counter = 0;
35
myhandler(int signo,siginfo_t * info,void * context)36 void myhandler(int signo, siginfo_t * info, void *context)
37 {
38 counter++;
39 }
40
main(void)41 int main(void)
42 {
43 int pid, i;
44 union sigval value;
45 struct sigaction act;
46
47 act.sa_flags = SA_SIGINFO;
48 act.sa_sigaction = myhandler;
49 sigemptyset(&act.sa_mask);
50 sigaction(SIGTOTEST, &act, 0);
51
52 value.sival_int = 0; /* 0 is just an arbitrary value */
53 pid = getpid();
54
55 sighold(SIGTOTEST);
56
57 for (i = 0; i < NUMCALLS; i++) {
58 if (sigqueue(pid, SIGTOTEST, value) != 0) {
59 printf
60 ("Test FAILED: call to sigqueue did not return success\n");
61 return PTS_FAIL;
62 }
63 }
64
65 if (0 != counter) {
66 printf
67 ("Test UNRESOLVED: handler called even though %d has not been removed from the signal mask\n",
68 SIGTOTEST);
69 return PTS_UNRESOLVED;
70 }
71
72 sigrelse(SIGTOTEST);
73
74 if (NUMCALLS != counter) {
75 printf
76 ("Test UNRESOLVED: %d was queued %d time(s) even though sigqueue was called %d time(s) for %d\n",
77 SIGTOTEST, counter, NUMCALLS, SIGTOTEST);
78 return PTS_UNRESOLVED;
79 }
80 return PTS_PASS;
81 }
82