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/*
This file is part of libmicrohttpd
(C) 2014 Karlson2k (Evgeny Grin)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library.
If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file platform/platfrom_interface.h
* @brief internal platform abstraction functions
* @author Karlson2k (Evgeny Grin)
*/
#ifndef MHD_PLATFORM_INTERFACE_H
#define MHD_PLATFORM_INTERFACE_H
#include "platform.h"
#if defined(_WIN32) && !defined(__CYGWIN__)
#include "w32functions.h"
#endif
/* MHD_socket_close_(fd) close any FDs (non-W32) / close only socket FDs (W32) */
#if !defined(_WIN32) || defined(__CYGWIN__)
#define MHD_socket_close_(fd) close((fd))
#else
#define MHD_socket_close_(fd) closesocket((fd))
#endif
/* MHD_socket_errno_ is errno of last function (non-W32) / errno of last socket function (W32) */
#if !defined(_WIN32) || defined(__CYGWIN__)
#define MHD_socket_errno_ errno
#else
#define MHD_socket_errno_ MHD_W32_errno_from_winsock_()
#endif
/* MHD_socket_last_strerr_ is description string of last errno (non-W32) /
* description string of last socket error (W32) */
#if !defined(_WIN32) || defined(__CYGWIN__)
#define MHD_socket_last_strerr_() strerror(errno)
#else
#define MHD_socket_last_strerr_() MHD_W32_strerror_last_winsock_()
#endif
/* MHD_strerror_ is strerror (both non-W32/W32) */
#if !defined(_WIN32) || defined(__CYGWIN__)
#define MHD_strerror_(errnum) strerror((errnum))
#else
#define MHD_strerror_(errnum) MHD_W32_strerror_((errnum))
#endif
/* MHD_set_socket_errno_ set errno to errnum (non-W32) / set socket last error to errnum (W32) */
#if !defined(_WIN32) || defined(__CYGWIN__)
#define MHD_set_socket_errno_(errnum) errno=(errnum)
#else
#define MHD_set_socket_errno_(errnum) MHD_W32_set_last_winsock_error_((errnum))
#endif
/* MHD_SYS_select_ is wrapper macro for system select() function */
#if !defined(MHD_WINSOCK_SOCKETS)
#define MHD_SYS_select_(n,r,w,e,t) select((n),(r),(w),(e),(t))
#else
#define MHD_SYS_select_(n,r,w,e,t) select((int)0,(r),(w),(e),(t))
#endif
/* MHD_pipe_ create pipe (!MHD_DONT_USE_PIPES) /
* create two connected sockets (MHD_DONT_USE_PIPES) */
#ifndef MHD_DONT_USE_PIPES
#define MHD_pipe_(fdarr) pipe((fdarr))
#else /* MHD_DONT_USE_PIPES */
#if !defined(_WIN32) || defined(__CYGWIN__)
#define MHD_pipe_(fdarr) socketpair(AF_LOCAL, SOCK_STREAM, 0, (fdarr))
#else /* !defined(_WIN32) || defined(__CYGWIN__) */
#define MHD_pipe_(fdarr) MHD_W32_pair_of_sockets_((fdarr))
#endif /* !defined(_WIN32) || defined(__CYGWIN__) */
#endif /* MHD_DONT_USE_PIPES */
/* MHD_pipe_errno_ is errno of last function (!MHD_DONT_USE_PIPES) /
* errno of last emulated pipe function (MHD_DONT_USE_PIPES) */
#ifndef MHD_DONT_USE_PIPES
#define MHD_pipe_errno_ errno
#else
#define MHD_pipe_errno_ MHD_socket_errno_
#endif
/* MHD_pipe_last_strerror_ is description string of last errno (!MHD_DONT_USE_PIPES) /
* description string of last pipe error (MHD_DONT_USE_PIPES) */
#ifndef MHD_DONT_USE_PIPES
#define MHD_pipe_last_strerror_() strerror(errno)
#else
#define MHD_pipe_last_strerror_() MHD_socket_last_strerr_()
#endif
/* MHD_pipe_write_ write data to real pipe (!MHD_DONT_USE_PIPES) /
* write data to emulated pipe (MHD_DONT_USE_PIPES) */
#ifndef MHD_DONT_USE_PIPES
#define MHD_pipe_write_(fd, ptr, sz) write((fd), (const void*)(ptr), (sz))
#else
#define MHD_pipe_write_(fd, ptr, sz) send((fd), (const char*)(ptr), (sz), 0)
#endif
/* MHD_pipe_read_ read data from real pipe (!MHD_DONT_USE_PIPES) /
* read data from emulated pipe (MHD_DONT_USE_PIPES) */
#ifndef MHD_DONT_USE_PIPES
#define MHD_pipe_read_(fd, ptr, sz) read((fd), (void*)(ptr), (sz))
#else
#define MHD_pipe_read_(fd, ptr, sz) recv((fd), (char*)(ptr), (sz), 0)
#endif
/* MHD_pipe_close_(fd) close any FDs (non-W32) /
* close emulated pipe FDs (W32) */
#ifndef MHD_DONT_USE_PIPES
#define MHD_pipe_close_(fd) close((fd))
#else
#define MHD_pipe_close_(fd) MHD_socket_close_((fd))
#endif
/* MHD_INVALID_PIPE_ is a value of bad pipe FD */
#ifndef MHD_DONT_USE_PIPES
#define MHD_INVALID_PIPE_ (-1)
#else
#define MHD_INVALID_PIPE_ MHD_INVALID_SOCKET
#endif
#if !defined(_WIN32) || defined(__CYGWIN__)
#define MHD_random_() random()
#else
#define MHD_random_() MHD_W32_random()
#endif
#endif // MHD_PLATFORM_INTERFACE_H
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