1 #include <signal.h> 2 #include <stdio.h> 3 #include "posixtest.h" 4 5 /* 6 7 * Copyright (c) 2002, Intel Corporation. All rights reserved. 8 * Created by: rolla.n.selbak REMOVE-THIS AT intel DOT com 9 * This file is licensed under the GPL license. For the full content 10 * of this license, see the COPYING file at the top level of this 11 * source tree. 12 13 * Test that the sigwait() function. If no signal in 'set' is pending at the 14 * time of the call, the thread shall be suspended until one or more becomes 15 * pending. 16 * 1) Block a signal from delivery. 17 * 2) Call sigwait() 18 * 3) Raise the signal. 19 * 4) Verify this process will return when the signal is sent. 20 */ 21 22 int main(void) 23 { 24 sigset_t newmask, pendingset; 25 int sig; 26 27 /* Empty set of blocked signals */ 28 29 if ((sigemptyset(&newmask) == -1) || (sigemptyset(&pendingset) == -1)) { 30 printf("Error in sigemptyset()\n"); 31 return PTS_UNRESOLVED; 32 } 33 34 /* Add SIGUSR2 to the set of blocked signals */ 35 if (sigaddset(&newmask, SIGUSR2) == -1) { 36 perror("Error in sigaddset()\n"); 37 return PTS_UNRESOLVED; 38 } 39 40 /* Block SIGUSR2 */ 41 if (sigprocmask(SIG_SETMASK, &newmask, NULL) == -1) { 42 printf("Error in sigprocmask()\n"); 43 return PTS_UNRESOLVED; 44 } 45 46 /* Send SIGUSR2 signal to this process. Since it is blocked, 47 * it should be pending */ 48 if (raise(SIGUSR2) != 0) { 49 printf("Could not raise SIGUSR2\n"); 50 return PTS_UNRESOLVED; 51 } 52 53 /* Test that SIGUSR2 is pending */ 54 if (sigpending(&pendingset) == -1) { 55 printf("Could not get pending signal set\n"); 56 return PTS_UNRESOLVED; 57 } 58 59 if (sigismember(&pendingset, SIGUSR2) != 1) { 60 printf("Signal SIGUSR2 is not pending!\n"); 61 return PTS_FAIL; 62 } 63 64 /* Call sigwait and test if it passed/failed */ 65 if (sigwait(&newmask, &sig) != 0) { 66 printf("Error in sigwait()\n"); 67 return PTS_FAIL; 68 } 69 70 if (sig != SIGUSR2) { 71 printf("sigwait selected another signal\n"); 72 return PTS_FAIL; 73 } 74 75 /* Test that SIGUSR2 is not pending anymore */ 76 if (sigpending(&pendingset) == -1) { 77 printf("Could not get pending signal set\n"); 78 return PTS_UNRESOLVED; 79 } 80 81 if (sigismember(&pendingset, SIGUSR2) != 0) { 82 printf("Signal SIGUSR2 is not pending!\n"); 83 return PTS_FAIL; 84 } 85 86 /* If we get here, then the process was suspended until 87 * SIGUSR2 was raised. */ 88 printf("Test PASSED\n"); 89 90 return PTS_PASS; 91 92 } 93
