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// This code contains NVIDIA Confidential Information and is disclosed
// under the Mutual Non-Disclosure Agreement.
//
// Notice
// ALL NVIDIA DESIGN SPECIFICATIONS AND CODE ("MATERIALS") ARE PROVIDED "AS IS" NVIDIA MAKES
// NO REPRESENTATIONS, WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
// THE MATERIALS, AND EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTIES OF NONINFRINGEMENT,
// MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
//
// NVIDIA Corporation assumes no responsibility for the consequences of use of such
// information or for any infringement of patents or other rights of third parties that may
// result from its use. No license is granted by implication or otherwise under any patent
// or patent rights of NVIDIA Corporation. No third party distribution is allowed unless
// expressly authorized by NVIDIA. Details are subject to change without notice.
// This code supersedes and replaces all information previously supplied.
// NVIDIA Corporation products are not authorized for use as critical
// components in life support devices or systems without express written approval of
// NVIDIA Corporation.
//
// Copyright � 2008- 2013 NVIDIA Corporation. All rights reserved.
//
// NVIDIA Corporation and its licensors retain all intellectual property and proprietary
// rights in and to this software and related documentation and any modifications thereto.
// Any use, reproduction, disclosure or distribution of this software and related
// documentation without an express license agreement from NVIDIA Corporation is
// strictly prohibited.
//
#ifndef _THREADWRAP_H
#define _THREADWRAP_H
#ifdef TARGET_PLATFORM_NIXLIKE
#include <pthread.h>
#include <string.h>
#include <assert.h>
typedef size_t FAKE_SIZE_T;
typedef unsigned int FAKE_DWORD;
typedef void* FAKE_HANDLE;
typedef int FAKE_BOOL;
typedef const wchar_t* FAKE_LPCWSTR;
typedef const char* FAKE_LPCSTR;
#ifdef _UNICODE
typedef FAKE_LPCWSTR FAKE_LPCTSTR;
#else
typedef FAKE_LPCSTR FAKE_LPCTSTR;
#endif
#define INFINITE 0xFFFFFFFF // Infinite timeout
#define FAKE_WAIT_OBJECT_0 ((FAKE_DWORD )0x00000000L)
#define FAKE_WAIT_TIMEOUT ((FAKE_DWORD )0x00000102L)
namespace
{
typedef pthread_mutex_t CRITICAL_SECTION;
void InitializeCriticalSection(pthread_mutex_t* mutex)
{
pthread_mutexattr_t attr;
pthread_mutexattr_init(&attr);
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE); // todo: PTHREAD_MUTEX_ADAPTIVE_NP?
pthread_mutex_init(mutex, &attr);
pthread_mutexattr_destroy(&attr);
}
void InitializeCriticalSectionAndSpinCount(pthread_mutex_t* mutex, FAKE_DWORD spinCount)
{
InitializeCriticalSection(mutex);
}
void DeleteCriticalSection(pthread_mutex_t* mutex)
{
pthread_mutex_destroy(mutex);
}
void EnterCriticalSection(pthread_mutex_t* mutex)
{
pthread_mutex_lock(mutex);
}
void LeaveCriticalSection(pthread_mutex_t* mutex)
{
pthread_mutex_unlock( mutex );
}
struct Event
{
pthread_cond_t cond;
pthread_mutex_t mutex;
volatile bool signalled;
bool manualReset;
};
typedef void* LPSECURITY_ATTRIBUTES;
FAKE_HANDLE CreateEvent(LPSECURITY_ATTRIBUTES lpEventAttributes, FAKE_BOOL bManualReset, FAKE_BOOL bInitialState, FAKE_LPCTSTR lpName)
{
Event* event = new Event;
pthread_cond_init(&event->cond, NULL);
InitializeCriticalSectionAndSpinCount(&event->mutex, 0);
event->signalled = bInitialState;
event->manualReset = bManualReset;
return event;
}
void SetEvent(FAKE_HANDLE handle)
{
Event* event = (Event*)handle;
pthread_mutex_lock(&event->mutex);
event->signalled = true;
pthread_mutex_unlock(&event->mutex);
pthread_cond_signal(&event->cond);
}
void ResetEvent(FAKE_HANDLE handle)
{
Event* event = (Event*)handle;
event->signalled = false;
}
FAKE_DWORD WaitForSingleObject(FAKE_HANDLE handle, FAKE_DWORD milliseconds)
{
Event* event = (Event*)handle;
if(0 == milliseconds)
{
// Simple non-blocking signalled/not-signalled check
pthread_mutex_lock(&event->mutex);
const bool was_signalled = event->signalled;
pthread_mutex_unlock(&event->mutex);
return was_signalled ? FAKE_WAIT_OBJECT_0 : FAKE_WAIT_TIMEOUT;
}
assert(milliseconds == INFINITE);
pthread_mutex_lock(&event->mutex);
while(!event->signalled)
pthread_cond_wait(&event->cond, &event->mutex);
if(!event->manualReset)
event->signalled = false;
pthread_mutex_unlock(&event->mutex);
return FAKE_WAIT_OBJECT_0;
}
void CloseHandle(FAKE_HANDLE handle) // handle needs to point to return value of CreateEvent()!
{
Event* event = (Event*)handle;
pthread_cond_destroy(&event->cond);
pthread_mutex_destroy(&event->mutex);
delete event;
}
typedef void* (LPTHREAD_START_ROUTINE) (void* lpThreadParameter);
FAKE_HANDLE CreateThread(LPSECURITY_ATTRIBUTES lpThreadAttributes, FAKE_SIZE_T dwStackSize,
LPTHREAD_START_ROUTINE* lpStartAddress, void* lpParameter, FAKE_DWORD dwCreationFlags, FAKE_DWORD* lpThreadId)
{
assert(lpThreadAttributes == NULL && !dwStackSize && !dwCreationFlags);
pthread_t* thread = new pthread_t;
pthread_attr_t attr;
pthread_attr_init(&attr);
pthread_attr_setstacksize(&attr, 1 << 21); // 2 MB
pthread_create(thread, &attr, lpStartAddress, lpParameter);
pthread_attr_destroy(&attr);
lpThreadId = 0;
return thread;
}
}
#endif // TARGET_PLATFROM_NIXLIKE
#endif // _THREADWRAP_H
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