IpcCommon.h

/******************************************************************************
IPC - Simple cross-platform C++ IPC library
Copyright (c) 2024, Marcus Tomlinson

BSD 2-Clause License

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
******************************************************************************/

#pragma once

#ifdef _WIN32

// note, winsock2.h needs to be included *first*, hence the empty line
#include <winsock2.h>

#include <afunix.h>

#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#undef WIN32_LEAN_AND_MEAN

#pragma comment( lib, "Ws2_32.lib" )

#else

#include <errno.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>

using SOCKET = int;
static const int INVALID_SOCKET = -1;
static const int SOCKET_ERROR = -1;

static int ( *closesocket )( int ) = close;

#endif

static const size_t c_recvBufferSize = 512;

static inline int lastError()
{
#ifdef _WIN32
    return WSAGetLastError();
#else
    return errno;
#endif
}