1 /* 2 * Copyright (c) 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 sigwaitinfo() was called and that 9 no signal in set was pending at the time of the call, then sigwaitinfo() 10 shall be suspended until a signal in set becomes pending. 11 12 Steps: 13 1. In the child process, register SIGTOTEST with handler. 14 2. call sigwaitinfo() with SIGTOTEST in set. 15 3. From the parent process, send a SIGTOTEST using kill. 16 4. Verify that the return value of the child is PTS_PASS, which indicates 17 that sigwaitinfo() has returned from it's suspended state. 18 19 */ 20 21 #include <signal.h> 22 #include <sys/types.h> 23 #include <sys/wait.h> 24 #include <stdio.h> 25 #include <stdlib.h> 26 #include <unistd.h> 27 #include "posixtest.h" 28 29 void handler(int signo) 30 { 31 printf("Inside dummy handler\n"); 32 } 33 34 int main(void) 35 { 36 pid_t pid; 37 pid = fork(); 38 39 if (pid == 0) { 40 /* child */ 41 sigset_t selectset; 42 43 struct sigaction act; 44 45 act.sa_handler = handler; 46 act.sa_flags = 0; 47 sigemptyset(&act.sa_mask); 48 49 if (sigaction(SIGUSR1, &act, 0) == -1) { 50 perror 51 ("Unexpected error while attempting to pre-conditions"); 52 return PTS_UNRESOLVED; 53 } 54 55 sigemptyset(&selectset); 56 sigaddset(&selectset, SIGUSR1); 57 58 printf("Child calling sigwaitinfo()\n"); 59 60 if (sigwaitinfo(&selectset, NULL) == -1) { 61 perror("Call to sigwaitinfo() failed\n"); 62 return PTS_UNRESOLVED; 63 } 64 65 printf("returned from sigwaitinfo\n"); 66 sleep(1); 67 return PTS_PASS; 68 69 } else { 70 int s; 71 int exit_status; 72 73 /* parent */ 74 sleep(1); 75 76 printf("parent sending child a SIGUSR1 signal\n"); 77 kill(pid, SIGUSR1); 78 79 if (wait(&s) == -1) { 80 perror("Unexpected error while setting up test " 81 "pre-conditions"); 82 return PTS_UNRESOLVED; 83 } 84 85 if (!WIFEXITED(s)) { 86 printf("Test FAILED: Did not exit normally\n"); 87 return PTS_FAIL; 88 } 89 90 exit_status = WEXITSTATUS(s); 91 92 printf("Exit status from child is %d\n", exit_status); 93 94 if (exit_status != PTS_PASS) { 95 printf("Test FAILED\n"); 96 return PTS_FAIL; 97 } 98 99 printf("Test PASSED\n"); 100 return PTS_PASS; 101 } 102 } 103
