1 /* 2 * Copyright (c) 2003, Intel Corporation. All rights reserved. 3 * Created by: majid.awad 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 9 /* 10 * sem_timedwait shall lock the unlocked semaphore and decrement the 11 * semaphore * value by one. 12 */ 13 14 #define _XOPEN_SOURCE 600 15 16 #include <stdio.h> 17 #include <errno.h> 18 #include <unistd.h> 19 #include <semaphore.h> 20 #include <sys/stat.h> 21 #include <fcntl.h> 22 #include <time.h> 23 #include "posixtest.h" 24 25 #define TEST "1-1" 26 #define FUNCTION "sem_timedwait" 27 #define ERROR_PREFIX "unexpected error: " FUNCTION " " TEST ": " 28 29 int main(void) 30 { 31 sem_t mysemp; 32 struct timespec ts; 33 int val, sts; 34 35 if (sem_init(&mysemp, 0, 1) == -1) { 36 perror(ERROR_PREFIX "sem_init"); 37 return PTS_UNRESOLVED; 38 } 39 40 ts.tv_sec = time(NULL); 41 ts.tv_nsec = 0; 42 43 /* Lock Semaphore */ 44 sts = sem_timedwait(&mysemp, &ts); 45 if (sts == -1) { 46 perror(ERROR_PREFIX "sem_timedwait"); 47 return PTS_UNRESOLVED; 48 } 49 50 /* Value of Semaphore */ 51 if (sem_getvalue(&mysemp, &val) == -1) { 52 perror(ERROR_PREFIX "sem_getvalue"); 53 return PTS_UNRESOLVED; 54 } 55 56 /* Checking if the value of the Semaphore decremented by one */ 57 if (val == 0 && sts == 0) { 58 puts("TEST PASSED"); 59 sem_destroy(&mysemp); 60 return PTS_PASS; 61 } else { 62 puts("TEST FAILED"); 63 return PTS_FAIL; 64 } 65 } 66
