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 disp is SIG_HOLD, then the 9 signal shall be added to the process's signal mask. 10 11 Steps: 12 1. Register SIGCHLD with myhandler 13 2. Add SIGCHLD to the process's signal mask using sigset with disp 14 equal to SIG_HOLD 15 3. raise SIGCHLD 16 4. Verify that SIGCHLD is pending. 17 */ 18 19 20 #include <signal.h> 21 #include <stdio.h> 22 #include <stdlib.h> 23 #include <errno.h> 24 #include <string.h> 25 #include "posixtest.h" 26 27 #define ERR_MSG(f, rc) printf("Failed: func: %s rc: %u errno: %s\n", \ 28 f, rc, strerror(errno)) 29 30 void myhandler(int signo) 31 { 32 printf("SIGCHLD called. Inside handler\n"); 33 } 34 35 int main(void) 36 { 37 sigset_t pendingset; 38 struct sigaction act; 39 act.sa_handler = myhandler; 40 act.sa_flags = 0; 41 sigemptyset(&act.sa_mask); 42 int rc; 43 44 rc = sigaction(SIGCHLD, &act, 0); 45 if (rc) { 46 ERR_MSG("sigaction()", rc); 47 return PTS_UNRESOLVED; 48 } 49 50 if (sigset(SIGCHLD, SIG_HOLD) == SIG_ERR) { 51 perror("Unexpected error while using sigset()"); 52 return PTS_UNRESOLVED; 53 } 54 55 raise(SIGCHLD); 56 57 rc = sigpending(&pendingset); 58 if (rc) { 59 ERR_MSG("sigpending()", rc); 60 return PTS_UNRESOLVED; 61 } 62 63 if (sigismember(&pendingset, SIGCHLD) != 1) { 64 printf("Test FAILED: Signal SIGCHLD wasn't hold.\n"); 65 return PTS_FAIL; 66 } 67 68 printf("Test PASSED\n"); 69 return PTS_PASS; 70 } 71
