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_post shall unlock the locked semaphore and increment the semaphore 11 * value by one. 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 "1-1" 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 int val; 31 32 sprintf(semname, "/" FUNCTION "_" TEST "_%d", getpid()); 33 34 /* Initial value of Semaphore is 0 */ 35 mysemp = sem_open(semname, O_CREAT, 0777, 0); 36 if (mysemp == SEM_FAILED || mysemp == NULL) { 37 perror(ERROR_PREFIX "sem_open"); 38 return PTS_UNRESOLVED; 39 } 40 41 if (sem_post(mysemp) == -1) { 42 perror(ERROR_PREFIX "sem_post"); 43 return PTS_UNRESOLVED; 44 } 45 46 if (sem_getvalue(mysemp, &val) == -1) { 47 perror(ERROR_PREFIX "sem_getvalue"); 48 return PTS_UNRESOLVED; 49 50 /* Checking if the value of the Semaphore incremented by one */ 51 } else if (val == 1) { 52 puts("TEST PASSED"); 53 sem_close(mysemp); 54 sem_unlink(semname); 55 return PTS_PASS; 56 } else { 57 puts("TEST FAILED"); 58 return PTS_FAIL; 59 } 60 } 61
