| /* |
| * Copyright (c) 2002, Intel Corporation. All rights reserved. |
| * Created by: julie.n.fleischer REMOVE-THIS AT intel DOT com |
| * This file is licensed under the GPL license. For the full content |
| * of this license, see the COPYING file at the top level of this |
| * source tree. |
| * |
| * Regression test motivated by an LKML discussion. Test that nanosleep() |
| * can be interrupted and then continue. |
| */ |
| #include <stdio.h> |
| #include <time.h> |
| #include <signal.h> |
| #include <unistd.h> |
| #include <sys/wait.h> |
| #include <stdlib.h> |
| #include "posixtest.h" |
| |
| #define SLEEPSEC 5 |
| |
| #define CHILDPASS 0 //if interrupted, child will return 0 |
| #define CHILDFAIL 1 |
| |
| int main(int argc, char *argv[]) |
| { |
| int pid, slepts; |
| struct timespec tsbefore, tsafter; |
| |
| if (clock_gettime(CLOCK_REALTIME, &tsbefore) != 0) { |
| perror("clock_gettime() did not return success\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| if ((pid = fork()) == 0) { |
| /* child here */ |
| struct timespec tssleep; |
| |
| tssleep.tv_sec=SLEEPSEC; |
| tssleep.tv_nsec=0; |
| if (nanosleep(&tssleep, NULL) == 0) { |
| printf("nanosleep() returned success\n"); |
| return CHILDPASS; |
| } else { |
| printf("nanosleep() did not return success\n"); |
| return CHILDFAIL; |
| } |
| return CHILDFAIL; |
| } else { |
| /* parent here */ |
| int i; |
| |
| sleep(1); |
| |
| if (kill(pid, SIGSTOP) != 0) { |
| printf("Could not raise SIGSTOP\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| if (kill(pid, SIGCONT) != 0) { |
| printf("Could not raise SIGCONT\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| if (wait(&i) == -1) { |
| perror("Error waiting for child to exit\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| if (!WIFEXITED(i)) { |
| printf("nanosleep() did not return 0\n"); |
| return PTS_FAIL; |
| } |
| |
| if (clock_gettime(CLOCK_REALTIME, &tsafter) == -1) { |
| perror("Error in clock_gettime()\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| slepts=tsafter.tv_sec-tsbefore.tv_sec; |
| |
| printf("Start %d sec; End %d sec\n", (int) tsbefore.tv_sec, |
| (int) tsafter.tv_sec); |
| if (slepts >= SLEEPSEC) { |
| printf("Test PASSED\n"); |
| return PTS_PASS; |
| } else { |
| printf("nanosleep() did not sleep long enough\n"); |
| return PTS_FAIL; |
| } |
| |
| } //end fork |
| |
| return PTS_UNRESOLVED; |
| } |