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enable poxix MultiThreading sample under Linux

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This commit is contained in:
erwincoumans
2013-07-18 21:18:09 -07:00
parent 12a4480d08
commit 2f0fd80c9c
8 changed files with 193 additions and 440 deletions
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83
btgui/MultiThreading/b3PosixThreadSupport.h
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@@ -4,8 +4,8 @@ Copyright (c) 2003-2007 Erwin Coumans http://bulletphysics.com
This software is provided 'as-is', without any express or implied warranty.
In no event will the authors be held liable for any damages arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it freely,
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it freely,
subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
@@ -13,14 +13,12 @@ subject to the following restrictions:
3. This notice may not be removed or altered from any source distribution.
*/
#ifndef BT_POSIX_THREAD_SUPPORT_H
#define BT_POSIX_THREAD_SUPPORT_H
#ifndef B3_POSIX_THREAD_SUPPORT_H
#define B3_POSIX_THREAD_SUPPORT_H
#include "LinearMath/btScalar.h"
#include "PlatformDefinitions.h"
#include "Bullet3Common/b3Scalar.h"
#ifdef USE_PTHREADS //platform specifc defines are defined in PlatformDefinitions.h
#ifndef _XOPEN_SOURCE
#define _XOPEN_SOURCE 600 //for definition of pthread_barrier_t, see http://pages.cs.wisc.edu/~travitch/pthreads_primer.html
@@ -30,16 +28,16 @@ subject to the following restrictions:
#include "LinearMath/btAlignedObjectArray.h"
#include "Bullet3Common/b3AlignedObjectArray.h"
#include "btThreadSupportInterface.h"
#include "b3ThreadSupportInterface.h"
typedef void (*PosixThreadFunc)(void* userPtr,void* lsMemory);
typedef void* (*PosixlsMemorySetupFunc)();
typedef void (*b3PosixThreadFunc)(void* userPtr,void* lsMemory);
typedef void* (*b3PosixlsMemorySetupFunc)();
// PosixThreadSupport helps to initialize/shutdown libspe2, start/stop SPU tasks and communication
class PosixThreadSupport : public btThreadSupportInterface
// b3PosixThreadSupport helps to initialize/shutdown libspe2, start/stop SPU tasks and communication
class b3PosixThreadSupport : public b3ThreadSupportInterface
{
public:
typedef enum sStatus {
@@ -49,13 +47,13 @@ public:
} Status;
// placeholder, until libspe2 support is there
struct btSpuStatus
struct b3ThreadStatus
{
uint32_t m_taskId;
uint32_t m_commandId;
uint32_t m_status;
int m_taskId;
int m_commandId;
int m_status;
PosixThreadFunc m_userThreadFunc;
b3PosixThreadFunc m_userThreadFunc;
void* m_userPtr; //for taskDesc etc
void* m_lsMemory; //initialized using PosixLocalStoreMemorySetupFunc
@@ -66,17 +64,17 @@ public:
};
private:
btAlignedObjectArray<btSpuStatus> m_activeSpuStatus;
b3AlignedObjectArray<b3ThreadStatus> m_activeThreadStatus;
public:
///Setup and initialize SPU/CELL/Libspe2
struct ThreadConstructionInfo
{
ThreadConstructionInfo(const char* uniqueName,
PosixThreadFunc userThreadFunc,
PosixlsMemorySetupFunc lsMemoryFunc,
b3PosixThreadFunc userThreadFunc,
b3PosixlsMemorySetupFunc lsMemoryFunc,
int numThreads=1,
int threadStackSize=65535
)
@@ -90,58 +88,57 @@ public:
}
const char* m_uniqueName;
PosixThreadFunc m_userThreadFunc;
PosixlsMemorySetupFunc m_lsMemoryFunc;
b3PosixThreadFunc m_userThreadFunc;
b3PosixlsMemorySetupFunc m_lsMemoryFunc;
int m_numThreads;
int m_threadStackSize;
};
PosixThreadSupport(ThreadConstructionInfo& threadConstructionInfo);
b3PosixThreadSupport(ThreadConstructionInfo& threadConstructionInfo);
///cleanup/shutdown Libspe2
virtual ~PosixThreadSupport();
virtual ~b3PosixThreadSupport();
void startThreads(ThreadConstructionInfo& threadInfo);
///send messages to SPUs
virtual void sendRequest(uint32_t uiCommand, ppu_address_t uiArgument0, uint32_t uiArgument1);
virtual void sendRequest(int uiCommand, void* uiArgument0, int uiArgument1);
///check for messages from SPUs
virtual void waitForResponse(unsigned int *puiArgument0, unsigned int *puiArgument1);
virtual void waitForResponse(int *puiArgument0, int *puiArgument1);
///start the spus (can be called at the beginning of each frame, to make sure that the right SPU program is loaded)
virtual void startSPU();
///tell the task scheduler we are done with the SPU tasks
virtual void stopSPU();
virtual void stopThreads();
virtual void setNumTasks(int numTasks) {}
virtual int getNumTasks() const
{
return m_activeSpuStatus.size();
return m_activeThreadStatus.size();
}
virtual btBarrier* createBarrier();
///non-blocking test if a task is completed. First implement all versions, and then enable this API
virtual bool isTaskCompleted(int *puiArgument0, int *puiArgument1, int timeOutInMilliseconds);
virtual btCriticalSection* createCriticalSection();
virtual void deleteBarrier(btBarrier* barrier);
virtual b3Barrier* createBarrier();
virtual b3CriticalSection* createCriticalSection();
virtual void deleteBarrier(b3Barrier* barrier);
virtual void deleteCriticalSection(b3CriticalSection* criticalSection);
virtual void deleteCriticalSection(btCriticalSection* criticalSection);
virtual void* getThreadLocalMemory(int taskId)
{
return m_activeSpuStatus[taskId].m_lsMemory;
return m_activeThreadStatus[taskId].m_lsMemory;
}
};
#endif // USE_PTHREADS
#endif // BT_POSIX_THREAD_SUPPORT_H
#endif // B3_POSIX_THREAD_SUPPORT_H