mirror of
https://git.gnunet.org/libmicrohttpd.git
synced 2026-09-26 04:09:30 +03:00
286 lines
9.0 KiB
C
286 lines
9.0 KiB
C
/*
|
|
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 include/platform_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
|
|
|
|
#if defined(MHD_USE_POSIX_THREADS)
|
|
typedef pthread_t MHD_thread_handle_;
|
|
#elif defined(MHD_USE_W32_THREADS)
|
|
#include <windows.h>
|
|
typedef HANDLE MHD_thread_handle_;
|
|
#else
|
|
#error "No threading API is available."
|
|
#endif
|
|
|
|
#if defined(MHD_USE_POSIX_THREADS)
|
|
#define MHD_THRD_RTRN_TYPE_ void*
|
|
#define MHD_THRD_CALL_SPEC_
|
|
#elif defined(MHD_USE_W32_THREADS)
|
|
#define MHD_THRD_RTRN_TYPE_ DWORD
|
|
#define MHD_THRD_CALL_SPEC_ WINAPI
|
|
#endif
|
|
|
|
#if defined(MHD_USE_POSIX_THREADS)
|
|
/**
|
|
* Wait until specified thread is ended
|
|
* @param thread ID to watch
|
|
* @return zero on success, nonzero on failure
|
|
*/
|
|
#define MHD_join_thread_(thread) pthread_join((thread), NULL)
|
|
#elif defined(MHD_USE_W32_THREADS)
|
|
/**
|
|
* Wait until specified thread is ended
|
|
* Close thread handle on success
|
|
* @param thread handle to watch
|
|
* @return zero on success, nonzero on failure
|
|
*/
|
|
#define MHD_join_thread_(thread) (WAIT_OBJECT_0 == WaitForSingleObject((thread), INFINITE) ? (CloseHandle((thread)), 0) : 1 )
|
|
#endif
|
|
|
|
#if defined(MHD_USE_W32_THREADS)
|
|
#define MHD_W32_MUTEX_ 1
|
|
#include <windows.h>
|
|
typedef CRITICAL_SECTION MHD_mutex_;
|
|
#elif defined(HAVE_PTHREAD_H) && defined(MHD_USE_POSIX_THREADS)
|
|
#define MHD_PTHREAD_MUTEX_ 1
|
|
typedef pthread_mutex_t MHD_mutex_;
|
|
#else
|
|
#error "No base mutex API is available."
|
|
#endif
|
|
|
|
#if defined(MHD_PTHREAD_MUTEX_)
|
|
/**
|
|
* Create new mutex.
|
|
* @param mutex pointer to the mutex
|
|
* @return #MHD_YES on success, #MHD_NO on failure
|
|
*/
|
|
#define MHD_mutex_create_(mutex) \
|
|
((0 == pthread_mutex_init ((mutex), NULL)) ? MHD_YES : MHD_NO)
|
|
#elif defined(MHD_W32_MUTEX_)
|
|
/**
|
|
* Create new mutex.
|
|
* @param mutex pointer to mutex
|
|
* @return #MHD_YES on success, #MHD_NO on failure
|
|
*/
|
|
#define MHD_mutex_create_(mutex) \
|
|
((NULL != (mutex) && 0 != InitializeCriticalSectionAndSpinCount((mutex),2000)) ? MHD_YES : MHD_NO)
|
|
#endif
|
|
|
|
#if defined(MHD_PTHREAD_MUTEX_)
|
|
/**
|
|
* Destroy previously created mutex.
|
|
* @param mutex pointer to mutex
|
|
* @return #MHD_YES on success, #MHD_NO on failure
|
|
*/
|
|
#define MHD_mutex_destroy_(mutex) \
|
|
((0 == pthread_mutex_destroy ((mutex))) ? MHD_YES : MHD_NO)
|
|
#elif defined(MHD_W32_MUTEX_)
|
|
/**
|
|
* Destroy previously created mutex.
|
|
* @param mutex pointer to mutex
|
|
* @return #MHD_YES on success, #MHD_NO on failure
|
|
*/
|
|
#define MHD_mutex_destroy_(mutex) \
|
|
((NULL != (mutex)) ? (DeleteCriticalSection(mutex), MHD_YES) : MHD_NO)
|
|
#endif
|
|
|
|
#if defined(MHD_PTHREAD_MUTEX_)
|
|
/**
|
|
* Acquire lock on previously created mutex.
|
|
* If mutex was already locked by other thread, function
|
|
* blocks until mutex becomes available.
|
|
* @param mutex pointer to mutex
|
|
* @return #MHD_YES on success, #MHD_NO on failure
|
|
*/
|
|
#define MHD_mutex_lock_(mutex) \
|
|
((0 == pthread_mutex_lock((mutex))) ? MHD_YES : MHD_NO)
|
|
#elif defined(MHD_W32_MUTEX_)
|
|
/**
|
|
* Acquire lock on previously created mutex.
|
|
* If mutex was already locked by other thread, function
|
|
* blocks until mutex becomes available.
|
|
* @param mutex pointer to mutex
|
|
* @return #MHD_YES on success, #MHD_NO on failure
|
|
*/
|
|
#define MHD_mutex_lock_(mutex) \
|
|
((NULL != (mutex)) ? (EnterCriticalSection((mutex)), MHD_YES) : MHD_NO)
|
|
#endif
|
|
|
|
#if defined(MHD_PTHREAD_MUTEX_)
|
|
/**
|
|
* Try to acquire lock on previously created mutex.
|
|
* Function returns immediately.
|
|
* @param mutex pointer to mutex
|
|
* @return #MHD_YES if mutex is locked, #MHD_NO if
|
|
* mutex was not locked.
|
|
*/
|
|
#define MHD_mutex_trylock_(mutex) \
|
|
((0 == pthread_mutex_trylock((mutex))) ? MHD_YES : MHD_NO)
|
|
#elif defined(MHD_W32_MUTEX_)
|
|
/**
|
|
* Try to acquire lock on previously created mutex.
|
|
* Function returns immediately.
|
|
* @param mutex pointer to mutex
|
|
* @return #MHD_YES if mutex is locked, #MHD_NO if
|
|
* mutex was not locked.
|
|
*/
|
|
#define MHD_mutex_trylock_(mutex) \
|
|
((NULL != (mutex) && 0 != TryEnterCriticalSection ((mutex))) ? MHD_YES : MHD_NO)
|
|
#endif
|
|
|
|
#if defined(MHD_PTHREAD_MUTEX_)
|
|
/**
|
|
* Unlock previously created and locked mutex.
|
|
* @param mutex pointer to mutex
|
|
* @return #MHD_YES on success, #MHD_NO on failure
|
|
*/
|
|
#define MHD_mutex_unlock_(mutex) \
|
|
((0 == pthread_mutex_unlock((mutex))) ? MHD_YES : MHD_NO)
|
|
#elif defined(MHD_W32_MUTEX_)
|
|
/**
|
|
* Unlock previously created and locked mutex.
|
|
* @param mutex pointer to mutex
|
|
* @return #MHD_YES on success, #MHD_NO on failure
|
|
*/
|
|
#define MHD_mutex_unlock_(mutex) \
|
|
((NULL != (mutex)) ? (LeaveCriticalSection((mutex)), MHD_YES) : MHD_NO)
|
|
#endif
|
|
|
|
#endif // MHD_PLATFORM_INTERFACE_H
|