1 /* 2 * Copyright (c) 2002, Intel Corporation. All rights reserved. 3 * Created by: julie.n.fleischer 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 * Test that clock_nanosleep() causes the current thread to be suspended 9 * until a signal whose action is to invoke a signal handling function 10 * is received for an absolute nanosleep (same as 1-3.c with 11 * TIMER_ABSTIME set). 12 * 13 * Note: This test case has some limitations: 14 * - clock_nanosleep() could not be executed at all, and the test would 15 * pass [Hopefully, the sleep() in the parent ensures clock_nanosleep() 16 * will be executed.] 17 * - There is no way of knowing for sure that it was the signal that 18 * stopped clock_nanosleep(). 19 */ 20 #include <stdio.h> 21 #include <time.h> 22 #include <signal.h> 23 #include <unistd.h> 24 #include <sys/wait.h> 25 #include "posixtest.h" 26 27 #define SLEEPSEC 30 28 29 void handler(int signo) 30 { 31 (void) signo; 32 33 printf("In handler\n"); 34 } 35 36 int main(void) 37 { 38 struct timespec tssleep, tsbefore, tsafter; 39 int pid, sleepuntilsec; 40 struct sigaction act; 41 42 if (clock_gettime(CLOCK_REALTIME, &tsbefore) != 0) { 43 perror("clock_gettime() did not return success\n"); 44 return PTS_UNRESOLVED; 45 } 46 47 sleepuntilsec = tsbefore.tv_sec + SLEEPSEC; 48 49 if ((pid = fork()) == 0) { 50 /* child here */ 51 int flags = 0; 52 53 act.sa_handler = handler; 54 act.sa_flags = 0; 55 if (sigemptyset(&act.sa_mask) != 0) { 56 perror("sigemptyset() did not return success\n"); 57 return PTS_UNRESOLVED; 58 } 59 if (sigaction(SIGABRT, &act, 0) != 0) { 60 perror("sigaction() did not return success\n"); 61 return PTS_UNRESOLVED; 62 } 63 64 tssleep.tv_sec = sleepuntilsec; 65 tssleep.tv_nsec = tsbefore.tv_nsec; 66 67 flags |= TIMER_ABSTIME; 68 clock_nanosleep(CLOCK_REALTIME, flags, &tssleep, NULL); 69 } else { 70 /* parent here */ 71 int i; 72 73 sleep(1); 74 75 if (kill(pid, SIGABRT) != 0) { 76 printf("Could not raise signal being tested\n"); 77 return PTS_UNRESOLVED; 78 } 79 80 if (wait(&i) == -1) { 81 perror("Error waiting for child to exit\n"); 82 return PTS_UNRESOLVED; 83 } 84 if (clock_gettime(CLOCK_REALTIME, &tsafter) != 0) { 85 perror("clock_gettime() did not return success\n"); 86 return PTS_UNRESOLVED; 87 } 88 89 /* 90 * pass if we slept for less than the (large) sleep time 91 * allotted 92 */ 93 94 if (tsafter.tv_sec < sleepuntilsec) { 95 printf("Test PASSED\n"); 96 return PTS_PASS; 97 } else { 98 printf("Slept for too long: %d >= %d\n", 99 (int)tsafter.tv_sec, sleepuntilsec); 100 printf("Test FAILED\n"); 101 return PTS_FAIL; 102 } 103 } 104 105 return PTS_UNRESOLVED; 106 } 107
