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Diffstat (limited to 'thirdparty/vhacd/inc/vhacdMutex.h')
| -rw-r--r-- | thirdparty/vhacd/inc/vhacdMutex.h | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/thirdparty/vhacd/inc/vhacdMutex.h b/thirdparty/vhacd/inc/vhacdMutex.h new file mode 100644 index 0000000000..6b09259200 --- /dev/null +++ b/thirdparty/vhacd/inc/vhacdMutex.h @@ -0,0 +1,148 @@ +/*! +** +** Copyright (c) 2009 by John W. Ratcliff mailto:jratcliffscarab@gmail.com +** +** Portions of this source has been released with the PhysXViewer application, as well as +** Rocket, CreateDynamics, ODF, and as a number of sample code snippets. +** +** If you find this code useful or you are feeling particularily generous I would +** ask that you please go to http://www.amillionpixels.us and make a donation +** to Troy DeMolay. +** +** DeMolay is a youth group for young men between the ages of 12 and 21. +** It teaches strong moral principles, as well as leadership skills and +** public speaking. The donations page uses the 'pay for pixels' paradigm +** where, in this case, a pixel is only a single penny. Donations can be +** made for as small as $4 or as high as a $100 block. Each person who donates +** will get a link to their own site as well as acknowledgement on the +** donations blog located here http://www.amillionpixels.blogspot.com/ +** +** If you wish to contact me you can use the following methods: +** +** Skype ID: jratcliff63367 +** Yahoo: jratcliff63367 +** AOL: jratcliff1961 +** email: jratcliffscarab@gmail.com +** +** +** The MIT license: +** +** Permission is hereby granted, free of charge, to any person obtaining a copy +** of this software and associated documentation files (the "Software"), to deal +** in the Software without restriction, including without limitation the rights +** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +** copies of the Software, and to permit persons to whom the Software is furnished +** to do so, subject to the following conditions: +** +** The above copyright notice and this permission notice shall be included in all +** copies or substantial portions of the Software. + +** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, +** WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +** CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +*/ + +#pragma once +#ifndef VHACD_MUTEX_H +#define VHACD_MUTEX_H + +#if defined(WIN32) + +#ifndef _WIN32_WINNT +#define _WIN32_WINNT 0x400 +#endif +#include <windows.h> +#pragma comment(lib, "winmm.lib") +#endif + +#if defined(__linux__) +//#include <sys/time.h> +#include <errno.h> +#include <time.h> +#include <unistd.h> +#define __stdcall +#endif + +#if defined(__APPLE__) || defined(__linux__) +#include <pthread.h> +#endif + +#if defined(__APPLE__) +#define PTHREAD_MUTEX_RECURSIVE_NP PTHREAD_MUTEX_RECURSIVE +#endif + +#define VHACD_DEBUG + +//#define VHACD_NDEBUG +#ifdef VHACD_NDEBUG +#define VHACD_VERIFY(x) (x) +#else +#define VHACD_VERIFY(x) assert((x)) +#endif + +namespace VHACD { +class Mutex { +public: + Mutex(void) + { +#if defined(WIN32) || defined(_XBOX) + InitializeCriticalSection(&m_mutex); +#elif defined(__APPLE__) || defined(__linux__) + pthread_mutexattr_t mutexAttr; // Mutex Attribute + VHACD_VERIFY(pthread_mutexattr_init(&mutexAttr) == 0); + VHACD_VERIFY(pthread_mutexattr_settype(&mutexAttr, PTHREAD_MUTEX_RECURSIVE_NP) == 0); + VHACD_VERIFY(pthread_mutex_init(&m_mutex, &mutexAttr) == 0); + VHACD_VERIFY(pthread_mutexattr_destroy(&mutexAttr) == 0); +#endif + } + ~Mutex(void) + { +#if defined(WIN32) || defined(_XBOX) + DeleteCriticalSection(&m_mutex); +#elif defined(__APPLE__) || defined(__linux__) + VHACD_VERIFY(pthread_mutex_destroy(&m_mutex) == 0); +#endif + } + void Lock(void) + { +#if defined(WIN32) || defined(_XBOX) + EnterCriticalSection(&m_mutex); +#elif defined(__APPLE__) || defined(__linux__) + VHACD_VERIFY(pthread_mutex_lock(&m_mutex) == 0); +#endif + } + bool TryLock(void) + { +#if defined(WIN32) || defined(_XBOX) + bool bRet = false; + //assert(("TryEnterCriticalSection seems to not work on XP???", 0)); + bRet = TryEnterCriticalSection(&m_mutex) ? true : false; + return bRet; +#elif defined(__APPLE__) || defined(__linux__) + int32_t result = pthread_mutex_trylock(&m_mutex); + return (result == 0); +#endif + } + + void Unlock(void) + { +#if defined(WIN32) || defined(_XBOX) + LeaveCriticalSection(&m_mutex); +#elif defined(__APPLE__) || defined(__linux__) + VHACD_VERIFY(pthread_mutex_unlock(&m_mutex) == 0); +#endif + } + +private: +#if defined(WIN32) || defined(_XBOX) + CRITICAL_SECTION m_mutex; +#elif defined(__APPLE__) || defined(__linux__) + pthread_mutex_t m_mutex; +#endif +}; +} +#endif // VHACD_MUTEX_H |