testcases/open_posix_testsuite/conformance/interfaces/sem_wait/3-1.c

/*
 * Copyright (c) 2003, Intel Corporation. All rights reserved.
 * Created by:  majid.awad 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.
 */

/* This test case verifies that the semaphore shall be locked until the
 * sem_post is executed and returns successfully.
 * Lines: 39056-39057
 */

#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <semaphore.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <signal.h>
#include "posixtest.h"

#define TEST "3-1"
#define FUNCTION "sem_wait"
#define ERROR_PREFIX "unexpected error: " FUNCTION " " TEST ": "

int main()
{
        sem_t *mysemp;
        char semname[28];
	int val;

	sprintf(semname, "/" FUNCTION "_" TEST "_%d", getpid());

	mysemp = sem_open(semname, O_CREAT, 0, 1);
       	if (mysemp == SEM_FAILED || mysemp == NULL) {
          	 perror(ERROR_PREFIX "sem_open");
               	 return PTS_UNRESOLVED;
        }

	if (sem_wait(mysemp) == -1) {
       		perror(ERROR_PREFIX "sem_wait");
       	       	return PTS_UNRESOLVED;
	}

        if (sem_post(mysemp) == -1) {
                perror(ERROR_PREFIX "sem_post");
                return PTS_UNRESOLVED;
        }

       	if (sem_getvalue(mysemp, &val) < 0) {
        	perror(ERROR_PREFIX "sem_getvalue");
               	return PTS_UNRESOLVED;
	}

        if (val == 1) {
	    puts("TEST PASSED");
	    sem_unlink(semname);
	    sem_close(mysemp);
	   return PTS_PASS;
        } else {
            puts("TEST FAILED");
            return PTS_FAIL;
        }
}