/*
 * Copyright 2008, Haiku Inc. All rights reserved.
 * Distributed under the terms of the MIT License.
 *
 * Authors:
 *              Salvatore Benedetto <salvatore.benedetto@gmail.com>
 */

#include <sys/sem.h>

#include <errno.h>
#include <fcntl.h>
#include <stdarg.h>
#include <stdlib.h>

#include <OS.h>

#include <errno_private.h>
#include <posix/xsi_semaphore_defs.h>
#include <syscall_utils.h>
#include <syscalls.h>


int
semget(key_t key, int numSems, int semFlags)
{
        RETURN_AND_SET_ERRNO(_kern_xsi_semget(key, numSems, semFlags));
}


int
semctl(int semID, int semNum, int command, ...)
{
        union semun arg;
        va_list args;

        switch (command) {
                case GETVAL:
                case GETPID:
                case GETNCNT:
                case GETZCNT:
                case IPC_RMID:
                        RETURN_AND_SET_ERRNO(_kern_xsi_semctl(semID, semNum, command, 0));

                case SETVAL:
                case GETALL:
                case SETALL:
                case IPC_STAT:
                case IPC_SET:
                        va_start(args, command);
                        arg = va_arg(args, union semun);
                        va_end(args);
                        RETURN_AND_SET_ERRNO(_kern_xsi_semctl(semID, semNum, command,
                                &arg));

                default:
                        return EINVAL;
        }
}


int
semop(int semID, struct sembuf *semOps, size_t numSemOps)
{
        RETURN_AND_SET_ERRNO(_kern_xsi_semop(semID, semOps, numSemOps));
}