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 * This test case verifies the semaphore value is 0, then shows a successful 11 * call to release the unlock from mysemp. 12 */ 13 14 #include <stdio.h> 15 #include <errno.h> 16 #include <unistd.h> 17 #include <semaphore.h> 18 #include <sys/stat.h> 19 #include <fcntl.h> 20 #include "posixtest.h" 21 22 #define TEST "2-1" 23 #define FUNCTION "sem_post" 24 #define ERROR_PREFIX "unexpected error: " FUNCTION " " TEST ": " 25 26 int main(void) 27 { 28 sem_t *mysemp; 29 char semname[28]; 30 31 sprintf(semname, "/" FUNCTION "_" TEST "_%d", getpid()); 32 33 /* Initial value of Semaphore is 0 */ 34 mysemp = sem_open(semname, O_CREAT, 0777, 1); 35 if (mysemp == SEM_FAILED || mysemp == NULL) { 36 perror(ERROR_PREFIX "sem_open"); 37 return PTS_UNRESOLVED; 38 } 39 40 if (sem_wait(mysemp) == -1) { 41 perror(ERROR_PREFIX "sem_post"); 42 return PTS_UNRESOLVED; 43 } 44 45 if (sem_post(mysemp) == 0) { 46 puts("TEST PASSED"); 47 sem_close(mysemp); 48 sem_unlink(semname); 49 return PTS_PASS; 50 } else { 51 puts("TEST FAILED: value of sem_post is not zero"); 52 return PTS_FAIL; 53 } 54 55 } 56
