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.
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 */
20
21 #define _XOPEN_SOURCE 600
22 #define _XOPEN_REALTIME 1
23 #define SIGTOTEST SIGRTMIN
24 #define NUMCALLS 5
25
26 #include <signal.h>
27 #include <stdio.h>
28 #include <unistd.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include "posixtest.h"
32
33 int counter = 0;
34
myhandler(int signo,siginfo_t * info,void * context)35 void myhandler(int signo, siginfo_t * info, void *context)
36 {
37 counter++;
38 }
39
main(void)40 int main(void)
41 {
42 int pid, i;
43 union sigval value;
44 struct sigaction act;
45
46 act.sa_flags = SA_SIGINFO;
47 act.sa_sigaction = myhandler;
48 sigemptyset(&act.sa_mask);
49 sigaction(SIGTOTEST, &act, 0);
50
51 pid = getpid();
52
53 sighold(SIGTOTEST);
54
55 for (i = 0; i < NUMCALLS; i++) {
56 value.sival_int = i; /* i is just an arbitrary value */
57 if (sigqueue(pid, SIGTOTEST, value) != 0) {
58 printf
59 ("Test UNRESOLVED: call to sigqueue did not return success\n");
60 return PTS_UNRESOLVED;
61 }
62 }
63
64 if (0 != counter) {
65 printf
66 ("Test UNRESOLVED: handler called even though %d has not been removed from the signal mask\n",
67 SIGTOTEST);
68 return PTS_UNRESOLVED;
69 }
70
71 sigrelse(SIGTOTEST);
72
73 if (NUMCALLS != counter) {
74 printf
75 ("Test FAILED: %d was queued %d time(s) even though sigqueue was called %d time(s) for %d\n",
76 SIGTOTEST, counter, NUMCALLS, SIGTOTEST);
77 return PTS_FAIL;
78 }
79 return PTS_PASS;
80 }
81