1 #include <time.h> 2 #include <unistd.h> 3 #include <stdio.h> 4 #include <errno.h> 5 #include <signal.h> 6 7 #include "../memcheck.h" 8 9 /* Check that a syscall's POST function gets called if it completes 10 due to being interrupted. nanosleep is used here, because it 11 writes a result even if it fails. wait*() could also be used, 12 because they successully complete if interrupted by SIGCHLD. 13 */ 14 static void handler(int s) 15 { 16 } 17 18 int main() 19 { 20 struct timespec req, rem; 21 int ret; 22 23 req.tv_sec = 2; 24 req.tv_nsec = 0; 25 26 signal(SIGALRM, handler); 27 28 alarm(1); 29 ret = nanosleep(&req, &rem); 30 31 if (ret != -1 || errno != EINTR) { 32 fprintf(stderr, "FAILED: expected nanosleep to be interrupted\n"); 33 } else { 34 VALGRIND_CHECK_VALUE_IS_DEFINED(rem); 35 fprintf(stderr, "PASSED\n"); /* assuming CHECK_VALUE_IS_DEFINED doesn't print anything */ 36 } 37 38 return 0; 39 } 40
