GNU libmicrohttpd 0.9.77
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mhd_locks.h
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1/*
2 This file is part of libmicrohttpd
3 Copyright (C) 2016 Karlson2k (Evgeny Grin)
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18
19*/
20
37#ifndef MHD_LOCKS_H
38#define MHD_LOCKS_H 1
39
40#include "mhd_options.h"
41
42#if defined(MHD_USE_W32_THREADS)
43# define MHD_W32_MUTEX_ 1
44# ifndef WIN32_LEAN_AND_MEAN
45# define WIN32_LEAN_AND_MEAN 1
46# endif /* !WIN32_LEAN_AND_MEAN */
47# include <windows.h>
48#elif defined(HAVE_PTHREAD_H) && defined(MHD_USE_POSIX_THREADS)
49# define MHD_PTHREAD_MUTEX_ 1
50# undef HAVE_CONFIG_H
51# include <pthread.h>
52# define HAVE_CONFIG_H 1
53#else
54# error No base mutex API is available.
55#endif
56
57#ifndef MHD_PANIC
58# include <stdio.h>
59# include <stdlib.h>
60/* Simple implementation of MHD_PANIC, to be used outside lib */
61# define MHD_PANIC(msg) do { fprintf (stderr, \
62 "Abnormal termination at %d line in file %s: %s\n", \
63 (int) __LINE__, __FILE__, msg); abort (); \
64} while (0)
65#endif /* ! MHD_PANIC */
66
67#if defined(MHD_PTHREAD_MUTEX_)
68typedef pthread_mutex_t MHD_mutex_;
69#elif defined(MHD_W32_MUTEX_)
70typedef CRITICAL_SECTION MHD_mutex_;
71#endif
72
73#if defined(MHD_PTHREAD_MUTEX_)
79#define MHD_mutex_init_(pmutex) (! (pthread_mutex_init ((pmutex), NULL)))
80#elif defined(MHD_W32_MUTEX_)
86#define MHD_mutex_init_(pmutex) (InitializeCriticalSectionAndSpinCount ( \
87 (pmutex),16))
88#endif
89
90#if defined(MHD_PTHREAD_MUTEX_)
91# if defined(PTHREAD_MUTEX_INITIALIZER)
95# define MHD_MUTEX_STATIC_DEFN_INIT_(m) static MHD_mutex_ m = \
96 PTHREAD_MUTEX_INITIALIZER
97# endif /* PTHREAD_MUTEX_INITIALIZER */
98#endif
99
100#if defined(MHD_PTHREAD_MUTEX_)
106#define MHD_mutex_destroy_(pmutex) (! (pthread_mutex_destroy ((pmutex))))
107#elif defined(MHD_W32_MUTEX_)
113#define MHD_mutex_destroy_(pmutex) (DeleteCriticalSection ((pmutex)), ! 0)
114#endif
115
121#define MHD_mutex_destroy_chk_(pmutex) do { \
122 if (! MHD_mutex_destroy_ (pmutex)) \
123 MHD_PANIC (_ ("Failed to destroy mutex.\n")); \
124} while (0)
125
126
127#if defined(MHD_PTHREAD_MUTEX_)
135#define MHD_mutex_lock_(pmutex) (! (pthread_mutex_lock ((pmutex))))
136#elif defined(MHD_W32_MUTEX_)
144#define MHD_mutex_lock_(pmutex) (EnterCriticalSection ((pmutex)), ! 0)
145#endif
146
154#define MHD_mutex_lock_chk_(pmutex) do { \
155 if (! MHD_mutex_lock_ (pmutex)) \
156 MHD_PANIC (_ ("Failed to lock mutex.\n")); \
157} while (0)
158
159#if defined(MHD_PTHREAD_MUTEX_)
165#define MHD_mutex_unlock_(pmutex) (! (pthread_mutex_unlock ((pmutex))))
166#elif defined(MHD_W32_MUTEX_)
172#define MHD_mutex_unlock_(pmutex) (LeaveCriticalSection ((pmutex)), ! 0)
173#endif
174
180#define MHD_mutex_unlock_chk_(pmutex) do { \
181 if (! MHD_mutex_unlock_ (pmutex)) \
182 MHD_PANIC (_ ("Failed to unlock mutex.\n")); \
183} while (0)
184
185
186#endif /* ! MHD_LOCKS_H */
additional automatic macros for MHD_config.h