/** * Copyright (c) 2016 Tino Reichardt * All rights reserved. * * 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 can contact the author at: * - zstdmt source repository: https://github.com/mcmilk/zstdmt */ #ifndef THREADING_H_938743 #define THREADING_H_938743 #if defined (__cplusplus) extern "C" { #endif #if defined(ZSTD_MULTITHREAD) && defined(_WIN32) /** * Windows minimalist Pthread Wrapper, based on : * http://www.cse.wustl.edu/~schmidt/win32-cv-1.html */ #ifdef WINVER # undef WINVER #endif #define WINVER 0x0600 #ifdef _WIN32_WINNT # undef _WIN32_WINNT #endif #define _WIN32_WINNT 0x0600 #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(name) ZSTD_ERROR(name) /* mutex */ #define ZSTD_pthread_mutex_t CRITICAL_SECTION #define ZSTD_pthread_mutex_init(a, b) (InitializeCriticalSection((a)), 0) #define ZSTD_pthread_mutex_destroy(a) DeleteCriticalSection((a)) #define ZSTD_pthread_mutex_lock(a) EnterCriticalSection((a)) #define ZSTD_pthread_mutex_unlock(a) LeaveCriticalSection((a)) /* condition variable */ #define ZSTD_pthread_cond_t CONDITION_VARIABLE #define ZSTD_pthread_cond_init(a, b) (InitializeConditionVariable((a)), 0) #define ZSTD_pthread_cond_destroy(a) /* No delete */ #define ZSTD_pthread_cond_wait(a, b) SleepConditionVariableCS((a), (b), INFINITE) #define ZSTD_pthread_cond_signal(a) WakeConditionVariable((a)) #define ZSTD_pthread_cond_broadcast(a) WakeAllConditionVariable((a)) /* ZSTD_pthread_create() and ZSTD_pthread_join() */ typedef struct { HANDLE handle; void* (*start_routine)(void*); void* arg; } 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, void** value_ptr); /** * add here more wrappers as required */ #elif defined(ZSTD_MULTITHREAD) /* posix assumed ; need a better detection method */ /* === POSIX Systems === */ # include <pthread.h> #define ZSTD_pthread_mutex_t pthread_mutex_t #define ZSTD_pthread_mutex_init(a, b) pthread_mutex_init((a), (b)) #define ZSTD_pthread_mutex_destroy(a) pthread_mutex_destroy((a)) #define ZSTD_pthread_mutex_lock(a) pthread_mutex_lock((a)) #define ZSTD_pthread_mutex_unlock(a) pthread_mutex_unlock((a)) #define ZSTD_pthread_cond_t pthread_cond_t #define ZSTD_pthread_cond_init(a, b) pthread_cond_init((a), (b)) #define ZSTD_pthread_cond_destroy(a) pthread_cond_destroy((a)) #define ZSTD_pthread_cond_wait(a, b) pthread_cond_wait((a), (b)) #define ZSTD_pthread_cond_signal(a) pthread_cond_signal((a)) #define ZSTD_pthread_cond_broadcast(a) pthread_cond_broadcast((a)) #define ZSTD_pthread_t pthread_t #define ZSTD_pthread_create(a, b, c, d) pthread_create((a), (b), (c), (d)) #define ZSTD_pthread_join(a, b) pthread_join((a),(b)) #else /* ZSTD_MULTITHREAD not defined */ /* No multithreading support */ typedef int ZSTD_pthread_mutex_t; #define ZSTD_pthread_mutex_init(a, b) ((void)a, 0) #define ZSTD_pthread_mutex_destroy(a) #define ZSTD_pthread_mutex_lock(a) #define ZSTD_pthread_mutex_unlock(a) typedef int ZSTD_pthread_cond_t; #define ZSTD_pthread_cond_init(a, b) ((void)a, 0) #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 */