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 * Regression test motivated by an LKML discussion. Test that nanosleep() 9 * can be interrupted and then continue. 10 */ 11 #include <stdio.h> 12 #include <time.h> 13 #include <signal.h> 14 #include <unistd.h> 15 #include <sys/wait.h> 16 #include <stdlib.h> 17 #include "posixtest.h" 18 19 #define SLEEPSEC 5 20 21 #define CHILDPASS 0 //if interrupted, child will return 0 22 #define CHILDFAIL 1 23 24 int main(void) 25 { 26 int pid, slepts; 27 struct timespec tsbefore, tsafter; 28 29 if (clock_gettime(CLOCK_REALTIME, &tsbefore) != 0) { 30 perror("clock_gettime() did not return success\n"); 31 return PTS_UNRESOLVED; 32 } 33 34 if ((pid = fork()) == 0) { 35 /* child here */ 36 struct timespec tssleep; 37 38 tssleep.tv_sec = SLEEPSEC; 39 tssleep.tv_nsec = 0; 40 if (nanosleep(&tssleep, NULL) == 0) { 41 printf("nanosleep() returned success\n"); 42 return CHILDPASS; 43 } else { 44 printf("nanosleep() did not return success\n"); 45 return CHILDFAIL; 46 } 47 return CHILDFAIL; 48 } else { 49 /* parent here */ 50 int i; 51 52 sleep(1); 53 54 if (kill(pid, SIGSTOP) != 0) { 55 printf("Could not raise SIGSTOP\n"); 56 return PTS_UNRESOLVED; 57 } 58 59 if (kill(pid, SIGCONT) != 0) { 60 printf("Could not raise SIGCONT\n"); 61 return PTS_UNRESOLVED; 62 } 63 64 if (wait(&i) == -1) { 65 perror("Error waiting for child to exit\n"); 66 return PTS_UNRESOLVED; 67 } 68 69 if (!WIFEXITED(i)) { 70 printf("nanosleep() did not return 0\n"); 71 return PTS_FAIL; 72 } 73 74 if (clock_gettime(CLOCK_REALTIME, &tsafter) == -1) { 75 perror("Error in clock_gettime()\n"); 76 return PTS_UNRESOLVED; 77 } 78 79 slepts = tsafter.tv_sec - tsbefore.tv_sec; 80 81 printf("Start %d sec; End %d sec\n", (int)tsbefore.tv_sec, 82 (int)tsafter.tv_sec); 83 if (slepts >= SLEEPSEC) { 84 printf("Test PASSED\n"); 85 return PTS_PASS; 86 } else { 87 printf("nanosleep() did not sleep long enough\n"); 88 return PTS_FAIL; 89 } 90 91 } //end fork 92 93 return PTS_UNRESOLVED; 94 } 95
