// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- 
/*
 * This file is open source software, licensed to you under the terms
 * of the Apache License, Version 2.0 (the "License").  See the NOTICE file
 * distributed with this work for additional information regarding copyright
 * ownership.  You may not use this file except in compliance with the License.
 *
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
/*
 * Copyright (C) 2014 Cloudius Systems, Ltd.
 */
/*
 * Ceph - scalable distributed file system
 *
 * Copyright (C) 2015 XSky <haomai@xsky.com>
 *
 * Author: Haomai Wang <haomaiwang@gmail.com>
 *
 * This is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License version 2.1, as published by the Free Software
 * Foundation.  See file COPYING.
 *
 */

#ifndef CEPH_MSG_BYTEORDER_H_
#define CEPH_MSG_BYTEORDER_H_

#include <arpa/inet.h>  // for ntohs() and friends
#include <iosfwd>
#include <utility>

inline uint64_t ntohq(uint64_t v) {
  return __builtin_bswap64(v);
}
inline uint64_t htonq(uint64_t v) {
  return __builtin_bswap64(v);
}

inline void ntoh() {}
inline void hton() {}

inline uint8_t ntoh(uint8_t x) { return x; }
inline uint8_t hton(uint8_t x) { return x; }
inline uint16_t ntoh(uint16_t x) { return ntohs(x); }
inline uint16_t hton(uint16_t x) { return htons(x); }
inline uint32_t ntoh(uint32_t x) { return ntohl(x); }
inline uint32_t hton(uint32_t x) { return htonl(x); }
inline uint64_t ntoh(uint64_t x) { return ntohq(x); }
inline uint64_t hton(uint64_t x) { return htonq(x); }

inline int8_t ntoh(int8_t x) { return x; }
inline int8_t hton(int8_t x) { return x; }
inline int16_t ntoh(int16_t x) { return ntohs(x); }
inline int16_t hton(int16_t x) { return htons(x); }
inline int32_t ntoh(int32_t x) { return ntohl(x); }
inline int32_t hton(int32_t x) { return htonl(x); }
inline int64_t ntoh(int64_t x) { return ntohq(x); }
inline int64_t hton(int64_t x) { return htonq(x); }

#endif /* CEPH_MSG_BYTEORDER_H_ */