/** * Copyright (c) 2016 Tino Reichardt * All rights reserved. * * You can contact the author at: * - zstdmt source repository: https://github.com/mcmilk/zstdmt * * This source code is licensed under both the BSD-style license (found in the * LICENSE file in the root directory of this source tree) and the GPLv2 (found * in the COPYING file in the root directory of this source tree). * You may select, at your option, one of the above-listed licenses. */ #ifndef THREADING_H_938743 #define THREADING_H_938743 #include "debug.h" #if defined (__cplusplus) extern "C" { #endif #if defined(ZSTD_MULTITHREAD) && defined(_WIN32) /** * Windows minimalist Pthread Wrapper */ #ifdef WINVER # undef WINVER #endif #define WINVER … #ifdef _WIN32_WINNT # undef _WIN32_WINNT #endif #define _WIN32_WINNT … #ifndef WIN32_LEAN_AND_MEAN #define WIN32_LEAN_AND_MEAN #endif #undef ERROR /* reported already defined on VS 2015 (Rich Geldreich) */ #include <windows.h> #undef ERROR #define ERROR … /* mutex */ #define ZSTD_pthread_mutex_t … #define ZSTD_pthread_mutex_init … #define ZSTD_pthread_mutex_destroy … #define ZSTD_pthread_mutex_lock … #define ZSTD_pthread_mutex_unlock … /* condition variable */ #define ZSTD_pthread_cond_t … #define ZSTD_pthread_cond_init … #define ZSTD_pthread_cond_destroy … #define ZSTD_pthread_cond_wait … #define ZSTD_pthread_cond_signal … #define ZSTD_pthread_cond_broadcast … /* ZSTD_pthread_create() and ZSTD_pthread_join() */ typedef HANDLE ZSTD_pthread_t; int ZSTD_pthread_create(ZSTD_pthread_t* thread, const void* unused, void* (*start_routine) (void*), void* arg); int ZSTD_pthread_join(ZSTD_pthread_t thread); /** * add here more wrappers as required */ #elif defined(ZSTD_MULTITHREAD) /* posix assumed ; need a better detection method */ /* === POSIX Systems === */ # include <pthread.h> #if DEBUGLEVEL < 1 #define ZSTD_pthread_mutex_t … #define ZSTD_pthread_mutex_init … #define ZSTD_pthread_mutex_destroy … #define ZSTD_pthread_mutex_lock … #define ZSTD_pthread_mutex_unlock … #define ZSTD_pthread_cond_t … #define ZSTD_pthread_cond_init … #define ZSTD_pthread_cond_destroy … #define ZSTD_pthread_cond_wait … #define ZSTD_pthread_cond_signal … #define ZSTD_pthread_cond_broadcast … #define ZSTD_pthread_t … #define ZSTD_pthread_create … #define ZSTD_pthread_join … #else /* DEBUGLEVEL >= 1 */ /* Debug implementation of threading. * In this implementation we use pointers for mutexes and condition variables. * This way, if we forget to init/destroy them the program will crash or ASAN * will report leaks. */ #define ZSTD_pthread_mutex_t … int ZSTD_pthread_mutex_init(ZSTD_pthread_mutex_t* mutex, pthread_mutexattr_t const* attr); int ZSTD_pthread_mutex_destroy(ZSTD_pthread_mutex_t* mutex); #define ZSTD_pthread_mutex_lock … #define ZSTD_pthread_mutex_unlock … #define ZSTD_pthread_cond_t … int ZSTD_pthread_cond_init(ZSTD_pthread_cond_t* cond, pthread_condattr_t const* attr); int ZSTD_pthread_cond_destroy(ZSTD_pthread_cond_t* cond); #define ZSTD_pthread_cond_wait … #define ZSTD_pthread_cond_signal … #define ZSTD_pthread_cond_broadcast … #define ZSTD_pthread_t … #define ZSTD_pthread_create … #define ZSTD_pthread_join … #endif #else /* ZSTD_MULTITHREAD not defined */ /* No multithreading support */ ZSTD_pthread_mutex_t; #define ZSTD_pthread_mutex_init(a, b) … #define ZSTD_pthread_mutex_destroy(a) … #define ZSTD_pthread_mutex_lock(a) … #define ZSTD_pthread_mutex_unlock(a) … ZSTD_pthread_cond_t; #define ZSTD_pthread_cond_init(a, b) … #define ZSTD_pthread_cond_destroy(a) … #define ZSTD_pthread_cond_wait(a, b) … #define ZSTD_pthread_cond_signal(a) … #define ZSTD_pthread_cond_broadcast(a) … /* do not use ZSTD_pthread_t */ #endif /* ZSTD_MULTITHREAD */ #if defined (__cplusplus) } #endif #endif /* THREADING_H_938743 */
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