1458 lines
33 KiB
C++
1458 lines
33 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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//=============================================================================
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#if defined( _WIN32 ) && !defined( _X360 )
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#endif
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#include "tier0/dbg.h"
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#include "tier0/tslist.h"
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#include "tier0/icommandline.h"
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#include "vstdlib/jobthread.h"
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#include "vstdlib/random.h"
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#include "tier1/functors.h"
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#include "tier1/fmtstr.h"
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#include "tier1/utlvector.h"
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#include "tier1/generichash.h"
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#include "tier0/vprof.h"
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#if defined( _X360 )
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#include "xbox/xbox_win32stubs.h"
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#endif
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#include "tier0/memdbgon.h"
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class CJobThread;
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//-----------------------------------------------------------------------------
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inline void ServiceJobAndRelease( CJob *pJob, int iThread = -1 )
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{
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// TryLock() would only fail if another thread has entered
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// Execute() or Abort()
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if ( !pJob->IsFinished() && pJob->TryLock() )
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{
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// ...service the request
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pJob->SetServiceThread( iThread );
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pJob->Execute();
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pJob->Unlock();
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}
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pJob->Release();
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}
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//-----------------------------------------------------------------------------
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class ALIGN16 CJobQueue
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{
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public:
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CJobQueue() :
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m_nItems( 0 ),
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m_nMaxItems( INT_MAX )
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{
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for ( int i = 0; i < ARRAYSIZE( m_pQueues ); i++ )
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{
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m_pQueues[i] = new CTSQueue<CJob *>;
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}
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}
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~CJobQueue()
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{
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for ( int i = 0; i < ARRAYSIZE( m_pQueues ); i++ )
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{
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delete m_pQueues[i];
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}
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}
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int Count()
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{
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return m_nItems;
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}
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int Count( JobPriority_t priority )
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{
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return m_pQueues[priority]->Count();
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}
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CJob *PrePush()
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{
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if ( m_nItems >= m_nMaxItems )
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{
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CJob *pOverflowJob;
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if ( Pop( &pOverflowJob ) )
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{
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return pOverflowJob;
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}
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}
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return NULL;
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}
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int Push( CJob *pJob, int iThread = -1 )
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{
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pJob->AddRef();
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CJob *pOverflowJob;
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int nOverflow = 0;
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while ( ( pOverflowJob = PrePush() ) != NULL )
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{
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ServiceJobAndRelease( pJob );
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nOverflow++;
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}
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m_pQueues[pJob->GetPriority()]->PushItem( pJob );
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m_mutex.Lock();
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if ( ++m_nItems == 1 )
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{
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m_JobAvailableEvent.Set();
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}
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m_mutex.Unlock();
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return nOverflow;
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}
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bool Pop( CJob **ppJob )
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{
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m_mutex.Lock();
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if ( !m_nItems )
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{
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m_mutex.Unlock();
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*ppJob = NULL;
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return false;
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}
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if ( --m_nItems == 0 )
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{
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m_JobAvailableEvent.Reset();
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}
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m_mutex.Unlock();
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for ( int i = JP_HIGH; i >= 0; --i )
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{
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if ( m_pQueues[i]->PopItem( ppJob ) )
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{
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return true;
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}
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}
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AssertMsg( 0, "Expected at least one queue item" );
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*ppJob = NULL;
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return false;
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}
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CThreadEvent &GetEventHandle()
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{
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return m_JobAvailableEvent;
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}
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void Flush()
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{
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// Only safe to call when system is suspended
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m_mutex.Lock();
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m_nItems = 0;
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m_JobAvailableEvent.Reset();
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CJob *pJob;
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for ( int i = JP_HIGH; i >= 0; --i )
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{
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while ( m_pQueues[i]->PopItem( &pJob ) )
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{
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pJob->Abort();
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pJob->Release();
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}
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}
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m_mutex.Unlock();
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}
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private:
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CTSQueue<CJob *> *m_pQueues[JP_HIGH + 1];
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int m_nItems;
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int m_nMaxItems;
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CThreadMutex m_mutex;
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CThreadManualEvent m_JobAvailableEvent;
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} ALIGN16_POST;
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//-----------------------------------------------------------------------------
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//
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// CThreadPool
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//
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//-----------------------------------------------------------------------------
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class CThreadPool : public CRefCounted1<IThreadPool, CRefCountServiceMT>
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{
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public:
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CThreadPool();
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~CThreadPool();
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//-----------------------------------------------------
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// Thread functions
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//-----------------------------------------------------
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bool Start( const ThreadPoolStartParams_t &startParams = ThreadPoolStartParams_t() ) { return Start( startParams, NULL ); }
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bool Start( const ThreadPoolStartParams_t &startParams, const char *pszNameOverride );
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bool Stop( int timeout = TT_INFINITE );
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void Distribute( bool bDistribute = true, int *pAffinityTable = NULL );
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//-----------------------------------------------------
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// Functions for any thread
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//-----------------------------------------------------
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unsigned GetJobCount() { return m_nJobs; }
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int NumThreads();
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int NumIdleThreads();
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//-----------------------------------------------------
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// Pause/resume processing jobs
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//-----------------------------------------------------
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int SuspendExecution();
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int ResumeExecution();
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//-----------------------------------------------------
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// Offer the current thread to the pool
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//-----------------------------------------------------
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virtual int YieldWait( CThreadEvent **pEvents, int nEvents, bool bWaitAll = true, unsigned timeout = TT_INFINITE );
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virtual int YieldWait( CJob **, int nJobs, bool bWaitAll = true, unsigned timeout = TT_INFINITE );
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void Yield( unsigned timeout );
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//-----------------------------------------------------
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// Add a native job to the queue (master thread)
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//-----------------------------------------------------
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void AddJob( CJob * );
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void InsertJobInQueue( CJob * );
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//-----------------------------------------------------
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// All threads execute pFunctor asap. Thread will either wake up
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// and execute or execute pFunctor right after completing current job and
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// before looking for another job.
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//-----------------------------------------------------
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void ExecuteHighPriorityFunctor( CFunctor *pFunctor );
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//-----------------------------------------------------
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// Add an function object to the queue (master thread)
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//-----------------------------------------------------
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void AddFunctorInternal( CFunctor *, CJob ** = NULL, const char *pszDescription = NULL, unsigned flags = 0 );
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//-----------------------------------------------------
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// Remove a job from the queue (master thread)
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//-----------------------------------------------------
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virtual void ChangePriority( CJob *p, JobPriority_t priority );
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//-----------------------------------------------------
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// Bulk job manipulation (blocking)
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//-----------------------------------------------------
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int ExecuteToPriority( JobPriority_t toPriority, JobFilter_t pfnFilter = NULL );
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int AbortAll();
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virtual void Reserved1() {}
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void WaitForIdle( bool bAll = true );
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private:
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enum
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{
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IO_STACKSIZE = ( 64 * 1024 ),
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COMPUTATION_STACKSIZE = 0,
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};
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//-----------------------------------------------------
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//
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//-----------------------------------------------------
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CJob *PeekJob();
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CJob *GetDummyJob();
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//-----------------------------------------------------
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// Thread functions
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//-----------------------------------------------------
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int Run();
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private:
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friend class CJobThread;
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CJobQueue m_SharedQueue;
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CInterlockedInt m_nIdleThreads;
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CUtlVector<CJobThread *> m_Threads;
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CUtlVector<CThreadEvent *> m_IdleEvents;
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CThreadMutex m_SuspendMutex;
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int m_nSuspend;
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CInterlockedInt m_nJobs;
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// Some jobs should only be executed on the threadpool thread(s). Ie: the rendering thread has the GL context
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// and the main thread coming in and "helping" with jobs breaks that pretty nicely. This flag states that
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// only the threadpool threads should execute these jobs.
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bool m_bExecOnThreadPoolThreadsOnly;
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};
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//-----------------------------------------------------------------------------
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JOB_INTERFACE IThreadPool *CreateThreadPool()
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{
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return new CThreadPool;
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}
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JOB_INTERFACE void DestroyThreadPool( IThreadPool *pPool )
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{
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delete pPool;
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}
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//-----------------------------------------------------------------------------
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class CGlobalThreadPool : public CThreadPool
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{
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public:
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virtual bool Start( const ThreadPoolStartParams_t &startParamsIn )
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{
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int nThreads = ( CommandLine()->ParmValue( "-threads", -1 ) - 1 );
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ThreadPoolStartParams_t startParams = startParamsIn;
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if ( nThreads >= 0 )
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{
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startParams.nThreads = nThreads;
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}
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else
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{
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// Cap the GlobPool threads at 4.
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startParams.nThreadsMax = 4;
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}
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return CThreadPool::Start( startParams, "Glob" );
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}
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virtual bool OnFinalRelease()
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{
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AssertMsg( 0, "Releasing global thread pool object!" );
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return false;
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}
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};
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//-----------------------------------------------------------------------------
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class CJobThread : public CWorkerThread
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{
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public:
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CJobThread( CThreadPool *pOwner, int iThread ) :
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m_SharedQueue( pOwner->m_SharedQueue ),
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m_pOwner( pOwner ),
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m_iThread( iThread )
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{
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}
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CThreadEvent &GetIdleEvent()
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{
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return m_IdleEvent;
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}
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CJobQueue &AccessDirectQueue()
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{
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return m_DirectQueue;
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}
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private:
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unsigned Wait()
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{
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unsigned waitResult;
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tmZone( TELEMETRY_LEVEL0, TMZF_IDLE, "%s", __FUNCTION__ );
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#ifdef WIN32
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enum Event_t
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{
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CALL_FROM_MASTER,
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SHARED_QUEUE,
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DIRECT_QUEUE,
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NUM_EVENTS
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};
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HANDLE waitHandles[NUM_EVENTS];
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waitHandles[CALL_FROM_MASTER] = GetCallHandle().GetHandle();
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waitHandles[SHARED_QUEUE] = m_SharedQueue.GetEventHandle().GetHandle();
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waitHandles[DIRECT_QUEUE] = m_DirectQueue.GetEventHandle().GetHandle();
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#ifdef _DEBUG
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while ( ( waitResult = WaitForMultipleObjects( ARRAYSIZE(waitHandles), waitHandles, FALSE, 10 ) ) == WAIT_TIMEOUT )
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{
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waitResult = waitResult; // break here
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}
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#else
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waitResult = WaitForMultipleObjects( ARRAYSIZE(waitHandles), waitHandles, FALSE, INFINITE );
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#endif
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#else // !win32
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bool bSet = false;
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int nWaitTime = 100;
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while( !bSet )
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{
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// Jobs are typically enqueued to the shared job queue so wait on it first.
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bSet = m_SharedQueue.GetEventHandle().Wait( nWaitTime );
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if( !bSet )
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bSet = m_DirectQueue.GetEventHandle().Wait( 10 );
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if ( !bSet )
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bSet = GetCallHandle().Wait( 0 );
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}
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if ( !bSet )
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waitResult = WAIT_TIMEOUT;
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else
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waitResult = WAIT_OBJECT_0;
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#endif
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return waitResult;
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}
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int Run()
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{
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// Wait for either a call from the master thread, or an item in the queue...
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unsigned waitResult;
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bool bExit = false;
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tmZone( TELEMETRY_LEVEL0, TMZF_NONE, "%s", __FUNCTION__ );
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m_pOwner->m_nIdleThreads++;
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m_IdleEvent.Set();
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while (!bExit && ( ( waitResult = Wait() ) != WAIT_FAILED ) )
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{
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if ( PeekCall() )
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{
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CFunctor *pFunctor = NULL;
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tmZone( TELEMETRY_LEVEL0, TMZF_NONE, "%s PeekCall():%d", __FUNCTION__, GetCallParam() );
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switch ( GetCallParam( &pFunctor ) )
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{
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case TPM_EXIT:
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Reply( true );
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bExit = TRUE;
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break;
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case TPM_SUSPEND:
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Reply( true );
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SuspendCooperative();
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break;
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case TPM_RUNFUNCTOR:
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if( pFunctor )
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{
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( *pFunctor )();
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Reply( true );
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}
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else
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{
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Assert( pFunctor );
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Reply( false );
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}
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break;
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default:
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AssertMsg( 0, "Unknown call to thread" );
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Reply( false );
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break;
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}
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}
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else
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{
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tmZone( TELEMETRY_LEVEL0, TMZF_NONE, "%s !PeekCall()", __FUNCTION__ );
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CJob *pJob;
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bool bTookJob = false;
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do
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{
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if ( !m_DirectQueue.Pop( &pJob) )
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{
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if ( !m_SharedQueue.Pop( &pJob ) )
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{
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// Nothing to process, return to wait state
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break;
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}
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}
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if ( !bTookJob )
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{
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m_IdleEvent.Reset();
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m_pOwner->m_nIdleThreads--;
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bTookJob = true;
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}
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ServiceJobAndRelease( pJob, m_iThread );
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m_pOwner->m_nJobs--;
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} while ( !PeekCall() );
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if ( bTookJob )
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{
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m_pOwner->m_nIdleThreads++;
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m_IdleEvent.Set();
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}
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}
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}
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m_pOwner->m_nIdleThreads--;
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m_IdleEvent.Reset();
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return 0;
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}
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CJobQueue m_DirectQueue;
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CJobQueue & m_SharedQueue;
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CThreadPool * m_pOwner;
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CThreadManualEvent m_IdleEvent;
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int m_iThread;
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};
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//-----------------------------------------------------------------------------
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CGlobalThreadPool g_ThreadPool;
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IThreadPool *g_pThreadPool = &g_ThreadPool;
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//-----------------------------------------------------------------------------
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//
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// CThreadPool
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//
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//-----------------------------------------------------------------------------
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CThreadPool::CThreadPool() :
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m_nIdleThreads( 0 ),
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m_nJobs( 0 ),
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m_nSuspend( 0 )
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{
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}
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//---------------------------------------------------------
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CThreadPool::~CThreadPool()
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{
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Stop();
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}
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//---------------------------------------------------------
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//
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//---------------------------------------------------------
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int CThreadPool::NumThreads()
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{
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return m_Threads.Count();
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}
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//---------------------------------------------------------
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//
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//---------------------------------------------------------
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int CThreadPool::NumIdleThreads()
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{
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return m_nIdleThreads;
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}
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void CThreadPool::ExecuteHighPriorityFunctor( CFunctor *pFunctor )
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{
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int i;
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for ( i = 0; i < m_Threads.Count(); i++ )
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{
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m_Threads[i]->CallWorker( TPM_RUNFUNCTOR, 0, false, pFunctor );
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}
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for ( i = 0; i < m_Threads.Count(); i++ )
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{
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m_Threads[i]->WaitForReply();
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}
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}
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//---------------------------------------------------------
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// Pause/resume processing jobs
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//---------------------------------------------------------
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int CThreadPool::SuspendExecution()
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{
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AUTO_LOCK( m_SuspendMutex );
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// If not already suspended
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if ( m_nSuspend == 0 )
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{
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// Make sure state is correct
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int i;
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for ( i = 0; i < m_Threads.Count(); i++ )
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{
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m_Threads[i]->CallWorker( TPM_SUSPEND, 0 );
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}
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for ( i = 0; i < m_Threads.Count(); i++ )
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{
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m_Threads[i]->WaitForReply();
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}
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// Because worker must signal before suspending, we could reach
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// here with the thread not actually suspended
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for ( i = 0; i < m_Threads.Count(); i++ )
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{
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m_Threads[i]->BWaitForThreadSuspendCooperative();
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}
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}
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return m_nSuspend++;
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}
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|
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//---------------------------------------------------------
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int CThreadPool::ResumeExecution()
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{
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AUTO_LOCK( m_SuspendMutex );
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AssertMsg( m_nSuspend >= 1, "Attempted resume when not suspended");
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int result = m_nSuspend--;
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if (m_nSuspend == 0 )
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{
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for ( int i = 0; i < m_Threads.Count(); i++ )
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{
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m_Threads[i]->ResumeCooperative();
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}
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}
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return result;
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}
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|
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//---------------------------------------------------------
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void CThreadPool::WaitForIdle( bool bAll )
|
|
{
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|
ThreadWaitForEvents( m_IdleEvents.Count(), m_IdleEvents.Base(), bAll, 60000 );
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}
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//---------------------------------------------------------
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|
|
int CThreadPool::YieldWait( CThreadEvent **pEvents, int nEvents, bool bWaitAll, unsigned timeout )
|
|
{
|
|
tmZone( TELEMETRY_LEVEL0, TMZF_IDLE, "%s(%d) SPINNING %t", __FUNCTION__, timeout, tmSendCallStack( TELEMETRY_LEVEL0, 0 ) );
|
|
|
|
Assert( timeout == TT_INFINITE ); // unimplemented
|
|
|
|
int result;
|
|
CJob *pJob;
|
|
// Always wait for zero milliseconds initially, to let us process jobs on this thread.
|
|
timeout = 0;
|
|
while ( ( result = ThreadWaitForEvents( nEvents, pEvents, bWaitAll, timeout ) ) == WAIT_TIMEOUT )
|
|
{
|
|
if ( !m_bExecOnThreadPoolThreadsOnly && m_SharedQueue.Pop( &pJob ) )
|
|
{
|
|
ServiceJobAndRelease( pJob );
|
|
m_nJobs--;
|
|
}
|
|
else
|
|
{
|
|
// Since there are no jobs for the main thread set the timeout to infinite.
|
|
// The only disadvantage to this is that if a job thread creates a new job
|
|
// then the main thread will not be available to pick it up, but if that
|
|
// is a problem you can just create more worker threads. Debugging test runs
|
|
// of TF2 suggests that jobs are only ever added from the main thread which
|
|
// means that there is no disadvantage.
|
|
// Waiting on the events instead of busy spinning has multiple advantages.
|
|
// It avoids wasting CPU time/electricity, it makes it more obvious in profiles
|
|
// when the main thread is idle versus busy, and it allows ready thread analysis
|
|
// in xperf to find out what woke up a waiting thread.
|
|
// It also avoids unnecessary CPU starvation -- seen on customer traces of TF2.
|
|
timeout = TT_INFINITE;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
|
|
int CThreadPool::YieldWait( CJob **ppJobs, int nJobs, bool bWaitAll, unsigned timeout )
|
|
{
|
|
CUtlVectorFixed<CThreadEvent *, 64> handles;
|
|
if ( nJobs > handles.NumAllocated() - 2 )
|
|
{
|
|
return TW_FAILED;
|
|
}
|
|
|
|
for ( int i = 0; i < nJobs; i++ )
|
|
{
|
|
handles.AddToTail( ppJobs[i]->AccessEvent() );
|
|
}
|
|
|
|
return YieldWait( handles.Base(), handles.Count(), bWaitAll, timeout);
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
|
|
void CThreadPool::Yield( unsigned timeout )
|
|
{
|
|
// @MULTICORE (toml 10/24/2006): not implemented
|
|
Assert( ThreadInMainThread() );
|
|
if ( !ThreadInMainThread() )
|
|
{
|
|
ThreadSleep( timeout );
|
|
return;
|
|
}
|
|
ThreadSleep( timeout );
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// Add a job to the queue
|
|
//---------------------------------------------------------
|
|
|
|
void CThreadPool::AddJob( CJob *pJob )
|
|
{
|
|
if ( !pJob )
|
|
{
|
|
return;
|
|
}
|
|
|
|
if ( pJob->m_ThreadPoolData != JOB_NO_DATA )
|
|
{
|
|
Warning( "Cannot add a thread job already committed to another thread pool\n" );
|
|
return;
|
|
}
|
|
|
|
if ( m_Threads.Count() == 0 )
|
|
{
|
|
// So only threadpool jobs are supposed to execute the jobs, but there are no threadpool threads?
|
|
Assert( !m_bExecOnThreadPoolThreadsOnly );
|
|
|
|
pJob->Execute();
|
|
return;
|
|
}
|
|
|
|
int flags = pJob->GetFlags();
|
|
|
|
if ( !m_bExecOnThreadPoolThreadsOnly && ( ( flags & ( JF_IO | JF_QUEUE ) ) == 0 ) /* @TBD && !m_queue.Count() */ )
|
|
{
|
|
if ( !NumIdleThreads() )
|
|
{
|
|
pJob->Execute();
|
|
return;
|
|
}
|
|
pJob->SetPriority( JP_HIGH );
|
|
}
|
|
|
|
|
|
if ( !pJob->CanExecute() )
|
|
{
|
|
// Already handled
|
|
ExecuteOnce( Warning( "Attempted to add job to job queue that has already been completed\n" ) );
|
|
return;
|
|
}
|
|
|
|
pJob->m_pThreadPool = this;
|
|
pJob->m_status = JOB_STATUS_PENDING;
|
|
InsertJobInQueue( pJob );
|
|
++m_nJobs;
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
//
|
|
//---------------------------------------------------------
|
|
|
|
void CThreadPool::InsertJobInQueue( CJob *pJob )
|
|
{
|
|
CJobQueue *pQueue;
|
|
|
|
if ( !( pJob->GetFlags() & JF_SERIAL ) )
|
|
{
|
|
int iThread = pJob->GetServiceThread();
|
|
if ( iThread == -1 || !m_Threads.IsValidIndex( iThread ) )
|
|
{
|
|
pQueue = &m_SharedQueue;
|
|
}
|
|
else
|
|
{
|
|
pQueue = &(m_Threads[iThread]->AccessDirectQueue());
|
|
}
|
|
}
|
|
else
|
|
{
|
|
pQueue = &(m_Threads[0]->AccessDirectQueue());
|
|
}
|
|
|
|
m_nJobs -= pQueue->Push( pJob );
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// Add an function object to the queue (master thread)
|
|
//---------------------------------------------------------
|
|
|
|
void CThreadPool::AddFunctorInternal( CFunctor *pFunctor, CJob **ppJob, const char *pszDescription, unsigned flags )
|
|
{
|
|
// Note: assumes caller has handled refcount
|
|
CJob *pJob = new CFunctorJob( pFunctor, pszDescription );
|
|
|
|
pJob->SetFlags( flags );
|
|
|
|
AddJob( pJob );
|
|
|
|
if ( ppJob )
|
|
{
|
|
*ppJob = pJob;
|
|
}
|
|
else
|
|
{
|
|
pJob->Release();
|
|
}
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// Remove a job from the queue
|
|
//---------------------------------------------------------
|
|
|
|
void CThreadPool::ChangePriority( CJob *pJob, JobPriority_t priority )
|
|
{
|
|
// Right now, only support upping the priority
|
|
if ( pJob->GetPriority() < priority )
|
|
{
|
|
pJob->SetPriority( priority );
|
|
m_SharedQueue.Push( pJob );
|
|
}
|
|
else
|
|
{
|
|
ExecuteOnce( if ( pJob->GetPriority() != priority ) DevMsg( "CThreadPool::RemoveJob not implemented right now" ) );
|
|
}
|
|
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// Execute to a specified priority
|
|
//---------------------------------------------------------
|
|
|
|
int CThreadPool::ExecuteToPriority( JobPriority_t iToPriority, JobFilter_t pfnFilter )
|
|
{
|
|
SuspendExecution();
|
|
|
|
CJob *pJob;
|
|
int nExecuted = 0;
|
|
int i;
|
|
int nJobsTotal = GetJobCount();
|
|
CUtlVector<CJob *> jobsToPutBack;
|
|
|
|
for ( int iCurPriority = JP_HIGH; iCurPriority >= iToPriority; --iCurPriority )
|
|
{
|
|
for ( i = 0; i < m_Threads.Count(); i++ )
|
|
{
|
|
CJobQueue &queue = m_Threads[i]->AccessDirectQueue();
|
|
while ( queue.Count( (JobPriority_t)iCurPriority ) )
|
|
{
|
|
queue.Pop( &pJob );
|
|
if ( pfnFilter && !(*pfnFilter)( pJob ) )
|
|
{
|
|
if ( pJob->CanExecute() )
|
|
{
|
|
jobsToPutBack.EnsureCapacity( nJobsTotal );
|
|
jobsToPutBack.AddToTail( pJob );
|
|
}
|
|
else
|
|
{
|
|
m_nJobs--;
|
|
pJob->Release(); // an already serviced job in queue, may as well ditch it (as in, main thread probably force executed)
|
|
}
|
|
continue;
|
|
}
|
|
ServiceJobAndRelease( pJob );
|
|
m_nJobs--;
|
|
nExecuted++;
|
|
}
|
|
|
|
}
|
|
|
|
while ( m_SharedQueue.Count( (JobPriority_t)iCurPriority ) )
|
|
{
|
|
m_SharedQueue.Pop( &pJob );
|
|
if ( pfnFilter && !(*pfnFilter)( pJob ) )
|
|
{
|
|
if ( pJob->CanExecute() )
|
|
{
|
|
jobsToPutBack.EnsureCapacity( nJobsTotal );
|
|
jobsToPutBack.AddToTail( pJob );
|
|
}
|
|
else
|
|
{
|
|
m_nJobs--;
|
|
pJob->Release(); // see above
|
|
}
|
|
continue;
|
|
}
|
|
|
|
ServiceJobAndRelease( pJob );
|
|
m_nJobs--;
|
|
nExecuted++;
|
|
}
|
|
}
|
|
|
|
for ( i = 0; i < jobsToPutBack.Count(); i++ )
|
|
{
|
|
InsertJobInQueue( jobsToPutBack[i] );
|
|
jobsToPutBack[i]->Release();
|
|
}
|
|
|
|
ResumeExecution();
|
|
|
|
return nExecuted;
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
//
|
|
//---------------------------------------------------------
|
|
|
|
int CThreadPool::AbortAll()
|
|
{
|
|
SuspendExecution();
|
|
CJob *pJob;
|
|
|
|
int iAborted = 0;
|
|
while ( m_SharedQueue.Pop( &pJob ) )
|
|
{
|
|
pJob->Abort();
|
|
pJob->Release();
|
|
iAborted++;
|
|
}
|
|
|
|
for ( int i = 0; i < m_Threads.Count(); i++ )
|
|
{
|
|
CJobQueue &queue = m_Threads[i]->AccessDirectQueue();
|
|
while ( queue.Pop( &pJob ) )
|
|
{
|
|
pJob->Abort();
|
|
pJob->Release();
|
|
iAborted++;
|
|
}
|
|
|
|
}
|
|
|
|
m_nJobs = 0;
|
|
|
|
ResumeExecution();
|
|
|
|
return iAborted;
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// CThreadPool thread functions
|
|
//---------------------------------------------------------
|
|
|
|
bool CThreadPool::Start( const ThreadPoolStartParams_t &startParams, const char *pszName )
|
|
{
|
|
int nThreads = startParams.nThreads;
|
|
|
|
m_bExecOnThreadPoolThreadsOnly = startParams.bExecOnThreadPoolThreadsOnly;
|
|
|
|
if ( nThreads < 0 )
|
|
{
|
|
const CPUInformation &ci = *GetCPUInformation();
|
|
if ( startParams.bIOThreads )
|
|
{
|
|
nThreads = ci.m_nLogicalProcessors;
|
|
}
|
|
else
|
|
{
|
|
nThreads = ( ci.m_nLogicalProcessors / (( ci.m_bHT ) ? 2 : 1) ) - 1; // One per
|
|
if ( IsPC() )
|
|
{
|
|
if ( nThreads > 3 )
|
|
{
|
|
DevMsg( "Defaulting to limit of 3 worker threads, use -threads on command line if want more\n" ); // Current >4 processor configs don't really work so well, probably due to cache issues? (toml 7/12/2007)
|
|
nThreads = 3;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( ( startParams.nThreadsMax >= 0 ) && ( nThreads > startParams.nThreadsMax ) )
|
|
{
|
|
nThreads = startParams.nThreadsMax;
|
|
}
|
|
}
|
|
|
|
if ( nThreads <= 0 )
|
|
{
|
|
return true;
|
|
}
|
|
|
|
int nStackSize = startParams.nStackSize;
|
|
|
|
if ( nStackSize < 0 )
|
|
{
|
|
if ( startParams.bIOThreads )
|
|
{
|
|
nStackSize = IO_STACKSIZE;
|
|
}
|
|
else
|
|
{
|
|
nStackSize = COMPUTATION_STACKSIZE;
|
|
}
|
|
}
|
|
|
|
int priority = startParams.iThreadPriority;
|
|
|
|
if ( priority == SHRT_MIN )
|
|
{
|
|
if ( startParams.bIOThreads )
|
|
{
|
|
priority = THREAD_PRIORITY_HIGHEST;
|
|
}
|
|
else
|
|
{
|
|
priority = ThreadGetPriority();
|
|
}
|
|
}
|
|
|
|
bool bDistribute;
|
|
if ( startParams.fDistribute != TRS_NONE )
|
|
{
|
|
bDistribute = ( startParams.fDistribute == TRS_TRUE );
|
|
}
|
|
else
|
|
{
|
|
bDistribute = !startParams.bIOThreads;
|
|
}
|
|
|
|
//--------------------------------------------------------
|
|
|
|
m_Threads.EnsureCapacity( nThreads );
|
|
m_IdleEvents.EnsureCapacity( nThreads );
|
|
|
|
if ( !pszName )
|
|
{
|
|
pszName = ( startParams.bIOThreads ) ? "IOJobX" : "CmpJobX";
|
|
}
|
|
while ( nThreads-- )
|
|
{
|
|
int iThread = m_Threads.AddToTail();
|
|
m_IdleEvents.AddToTail();
|
|
m_Threads[iThread] = new CJobThread( this, iThread );
|
|
m_IdleEvents[iThread] = &m_Threads[iThread]->GetIdleEvent();
|
|
m_Threads[iThread]->SetName( CFmtStr( "%s%d", pszName, iThread ) );
|
|
m_Threads[iThread]->Start( nStackSize );
|
|
m_Threads[iThread]->GetIdleEvent().Wait();
|
|
#ifdef WIN32
|
|
ThreadSetPriority( (ThreadHandle_t)m_Threads[iThread]->GetThreadHandle(), priority );
|
|
#endif
|
|
}
|
|
|
|
Distribute( bDistribute, startParams.bUseAffinityTable ? (int *)startParams.iAffinityTable : NULL );
|
|
|
|
return true;
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
|
|
void CThreadPool::Distribute( bool bDistribute, int *pAffinityTable )
|
|
{
|
|
if ( bDistribute )
|
|
{
|
|
const CPUInformation &ci = *GetCPUInformation();
|
|
int nHwThreadsPer = (( ci.m_bHT ) ? 2 : 1);
|
|
if ( ci.m_nLogicalProcessors > 1 )
|
|
{
|
|
if ( !pAffinityTable )
|
|
{
|
|
#if defined( IS_WINDOWS_PC )
|
|
// no affinity table, distribution is cycled across all available
|
|
HINSTANCE hInst = LoadLibrary( "kernel32.dll" );
|
|
if ( hInst )
|
|
{
|
|
typedef DWORD (WINAPI *SetThreadIdealProcessorFn)(ThreadHandle_t hThread, DWORD dwIdealProcessor);
|
|
SetThreadIdealProcessorFn Thread_SetIdealProcessor = (SetThreadIdealProcessorFn)GetProcAddress( hInst, "SetThreadIdealProcessor" );
|
|
if ( Thread_SetIdealProcessor )
|
|
{
|
|
ThreadHandle_t hMainThread = ThreadGetCurrentHandle();
|
|
Thread_SetIdealProcessor( hMainThread, 0 );
|
|
int iProc = 0;
|
|
for ( int i = 0; i < m_Threads.Count(); i++ )
|
|
{
|
|
iProc += nHwThreadsPer;
|
|
if ( iProc >= ci.m_nLogicalProcessors )
|
|
{
|
|
iProc %= ci.m_nLogicalProcessors;
|
|
if ( nHwThreadsPer > 1 )
|
|
{
|
|
iProc = ( iProc + 1 ) % nHwThreadsPer;
|
|
}
|
|
}
|
|
Thread_SetIdealProcessor((ThreadHandle_t)m_Threads[i]->GetThreadHandle(), iProc);
|
|
}
|
|
}
|
|
FreeLibrary( hInst );
|
|
}
|
|
#else
|
|
// no affinity table, distribution is cycled across all available
|
|
int iProc = 0;
|
|
for ( int i = 0; i < m_Threads.Count(); i++ )
|
|
{
|
|
iProc += nHwThreadsPer;
|
|
if ( iProc >= ci.m_nLogicalProcessors )
|
|
{
|
|
iProc %= ci.m_nLogicalProcessors;
|
|
if ( nHwThreadsPer > 1 )
|
|
{
|
|
iProc = ( iProc + 1 ) % nHwThreadsPer;
|
|
}
|
|
}
|
|
#ifdef WIN32
|
|
ThreadSetAffinity( (ThreadHandle_t)m_Threads[i]->GetThreadHandle(), 1 << iProc );
|
|
#endif
|
|
}
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
// distribution is from affinity table
|
|
for ( int i = 0; i < m_Threads.Count(); i++ )
|
|
{
|
|
#ifdef WIN32
|
|
ThreadSetAffinity( (ThreadHandle_t)m_Threads[i]->GetThreadHandle(), pAffinityTable[i] );
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
#ifdef WIN32
|
|
DWORD_PTR dwProcessAffinity, dwSystemAffinity;
|
|
if ( GetProcessAffinityMask( GetCurrentProcess(), &dwProcessAffinity, &dwSystemAffinity ) )
|
|
{
|
|
for ( int i = 0; i < m_Threads.Count(); i++ )
|
|
{
|
|
ThreadSetAffinity( (ThreadHandle_t)m_Threads[i]->GetThreadHandle(), dwProcessAffinity );
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
|
|
bool CThreadPool::Stop( int timeout )
|
|
{
|
|
for ( int i = 0; i < m_Threads.Count(); i++ )
|
|
{
|
|
m_Threads[i]->CallWorker( TPM_EXIT );
|
|
}
|
|
|
|
for ( int i = 0; i < m_Threads.Count(); ++i )
|
|
{
|
|
while( m_Threads[i]->IsAlive() )
|
|
{
|
|
ThreadSleep( 0 );
|
|
}
|
|
delete m_Threads[i];
|
|
}
|
|
|
|
m_nJobs = 0;
|
|
m_SharedQueue.Flush();
|
|
m_nIdleThreads = 0;
|
|
m_Threads.RemoveAll();
|
|
m_IdleEvents.RemoveAll();
|
|
|
|
return true;
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
|
|
CJob *CThreadPool::GetDummyJob()
|
|
{
|
|
class CDummyJob : public CJob
|
|
{
|
|
public:
|
|
CDummyJob()
|
|
{
|
|
Execute();
|
|
}
|
|
|
|
virtual JobStatus_t DoExecute() { return JOB_OK; }
|
|
};
|
|
|
|
static CDummyJob dummyJob;
|
|
|
|
dummyJob.AddRef();
|
|
return &dummyJob;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
|
|
namespace ThreadPoolTest
|
|
{
|
|
int g_iSleep;
|
|
|
|
CThreadEvent g_done;
|
|
int g_nTotalToComplete;
|
|
CThreadPool *g_pTestThreadPool;
|
|
|
|
class CCountJob : public CJob
|
|
{
|
|
public:
|
|
virtual JobStatus_t DoExecute()
|
|
{
|
|
m_nCount++;
|
|
ThreadPause();
|
|
if ( g_iSleep >= 0)
|
|
ThreadSleep( g_iSleep );
|
|
if ( bDoWork )
|
|
{
|
|
byte pMemory[1024];
|
|
int i;
|
|
for ( i = 0; i < 1024; i++ )
|
|
{
|
|
pMemory[i] = rand();
|
|
}
|
|
for ( i = 0; i < 50; i++ )
|
|
{
|
|
sqrt( (float)HashBlock( pMemory, 1024 ) + HashBlock( pMemory, 1024 ) + 10.0 );
|
|
}
|
|
bDoWork = false;
|
|
}
|
|
if ( m_nCount == g_nTotalToComplete )
|
|
g_done.Set();
|
|
return 0;
|
|
}
|
|
|
|
static CInterlockedInt m_nCount;
|
|
bool bDoWork;
|
|
};
|
|
CInterlockedInt CCountJob::m_nCount;
|
|
int g_nTotalAtFinish;
|
|
|
|
void Test( bool bDistribute, bool bSleep = true, bool bFinishExecute = false, bool bDoWork = false )
|
|
{
|
|
for ( int bInterleavePushPop = 0; bInterleavePushPop < 2; bInterleavePushPop++ )
|
|
{
|
|
for ( g_iSleep = -10; g_iSleep <= 10; g_iSleep += 10 )
|
|
{
|
|
Msg( "ThreadPoolTest: Testing! Sleep %d, interleave %d \n", g_iSleep, bInterleavePushPop );
|
|
int nMaxThreads = ( IsX360() ) ? 6 : 8;
|
|
int nIncrement = ( IsX360() ) ? 1 : 2;
|
|
for ( int i = 1; i <= nMaxThreads; i += nIncrement )
|
|
{
|
|
CCountJob::m_nCount = 0;
|
|
g_nTotalAtFinish = 0;
|
|
ThreadPoolStartParams_t params;
|
|
params.nThreads = i;
|
|
params.fDistribute = ( bDistribute) ? TRS_TRUE : TRS_FALSE;
|
|
g_pTestThreadPool->Start( params, "Tst" );
|
|
if ( !bInterleavePushPop )
|
|
{
|
|
g_pTestThreadPool->SuspendExecution();
|
|
}
|
|
|
|
CCountJob jobs[4000];
|
|
g_nTotalToComplete = ARRAYSIZE(jobs);
|
|
|
|
CFastTimer timer, suspendTimer;
|
|
|
|
suspendTimer.Start();
|
|
timer.Start();
|
|
for ( int j = 0; j < ARRAYSIZE(jobs); j++ )
|
|
{
|
|
jobs[j].SetFlags( JF_QUEUE );
|
|
jobs[j].bDoWork = bDoWork;
|
|
g_pTestThreadPool->AddJob( &jobs[j] );
|
|
if ( bSleep && j % 16 == 0 )
|
|
{
|
|
ThreadSleep( 0 );
|
|
}
|
|
}
|
|
if ( !bInterleavePushPop )
|
|
{
|
|
g_pTestThreadPool->ResumeExecution();
|
|
}
|
|
if ( bFinishExecute && g_iSleep <= 1 )
|
|
{
|
|
g_done.Wait();
|
|
}
|
|
g_nTotalAtFinish = CCountJob::m_nCount;
|
|
timer.End();
|
|
g_pTestThreadPool->SuspendExecution();
|
|
suspendTimer.End();
|
|
g_pTestThreadPool->ResumeExecution();
|
|
g_pTestThreadPool->Stop();
|
|
g_done.Reset();
|
|
|
|
int counts[8] = { 0 };
|
|
for ( int j = 0; j < ARRAYSIZE(jobs); j++ )
|
|
{
|
|
if ( jobs[j].GetServiceThread() != -1 )
|
|
{
|
|
counts[jobs[j].GetServiceThread()]++;
|
|
jobs[j].ClearServiceThread();
|
|
}
|
|
}
|
|
|
|
Msg( "ThreadPoolTest: %d threads -- %d (%d) jobs processed in %fms, %fms to suspend (%f/%f) [%d, %d, %d, %d, %d, %d, %d, %d]\n",
|
|
i, g_nTotalAtFinish, (int)CCountJob::m_nCount, timer.GetDuration().GetMillisecondsF(), suspendTimer.GetDuration().GetMillisecondsF() - timer.GetDuration().GetMillisecondsF(),
|
|
timer.GetDuration().GetMillisecondsF() / (float)CCountJob::m_nCount, (suspendTimer.GetDuration().GetMillisecondsF())/(float)g_nTotalAtFinish,
|
|
counts[0], counts[1], counts[2], counts[3], counts[4], counts[5], counts[6], counts[7] );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
bool g_bOutputError;
|
|
volatile int g_ReadyToExecute;
|
|
CInterlockedInt g_nReady;
|
|
|
|
class CExecuteTestJob : public CJob
|
|
{
|
|
public:
|
|
virtual JobStatus_t DoExecute()
|
|
{
|
|
byte pMemory[1024];
|
|
int i;
|
|
for ( i = 0; i < 1024; i++ )
|
|
{
|
|
pMemory[i] = rand();
|
|
}
|
|
for ( i = 0; i < 50; i++ )
|
|
{
|
|
sqrt( (float)HashBlock( pMemory, 1024 ) + HashBlock( pMemory, 1024 ) + 10.0 );
|
|
}
|
|
if ( AccessEvent()->Check() || IsFinished() )
|
|
{
|
|
if ( !g_bOutputError )
|
|
{
|
|
Msg( "Forced execute test failed!\n" );
|
|
DebuggerBreakIfDebugging();
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
};
|
|
|
|
class CExecuteTestExecuteJob : public CJob
|
|
{
|
|
public:
|
|
virtual JobStatus_t DoExecute()
|
|
{
|
|
bool bAbort = ( RandomInt( 1, 10 ) == 1 );
|
|
g_nReady++;
|
|
while ( !g_ReadyToExecute )
|
|
{
|
|
ThreadPause();
|
|
}
|
|
|
|
if ( !bAbort )
|
|
m_pTestJob->Execute();
|
|
else
|
|
m_pTestJob->Abort();
|
|
g_nReady--;
|
|
return 0;
|
|
}
|
|
|
|
CExecuteTestJob *m_pTestJob;
|
|
};
|
|
|
|
|
|
void TestForcedExecute()
|
|
{
|
|
Msg( "TestForcedExecute\n" );
|
|
for ( int tests = 0; tests < 30; tests++ )
|
|
{
|
|
for ( int i = 1; i <= 5; i += 2 )
|
|
{
|
|
g_nReady = 0;
|
|
ThreadPoolStartParams_t params;
|
|
params.nThreads = i;
|
|
params.fDistribute = TRS_TRUE;
|
|
g_pTestThreadPool->Start( params, "Tst" );
|
|
|
|
static CExecuteTestJob jobs[4000];
|
|
for ( int j = 0; j < ARRAYSIZE(jobs); j++ )
|
|
{
|
|
g_ReadyToExecute = false;
|
|
for ( int k = 0; k < i; k++ )
|
|
{
|
|
CExecuteTestExecuteJob *pJob = new CExecuteTestExecuteJob;
|
|
pJob->SetFlags( JF_QUEUE );
|
|
pJob->m_pTestJob = &jobs[j];
|
|
g_pTestThreadPool->AddJob( pJob );
|
|
pJob->Release();
|
|
}
|
|
while ( g_nReady < i )
|
|
{
|
|
ThreadPause();
|
|
}
|
|
g_ReadyToExecute = true;
|
|
ThreadSleep();
|
|
jobs[j].Execute();
|
|
while ( g_nReady > 0 )
|
|
{
|
|
ThreadPause();
|
|
}
|
|
}
|
|
g_pTestThreadPool->Stop();
|
|
}
|
|
}
|
|
Msg( "TestForcedExecute DONE\n" );
|
|
}
|
|
|
|
} // namespace ThreadPoolTest
|
|
|
|
void RunThreadPoolTests()
|
|
{
|
|
CThreadPool pool;
|
|
ThreadPoolTest::g_pTestThreadPool = &pool;
|
|
RunTSQueueTests(10000);
|
|
RunTSListTests(10000);
|
|
|
|
#ifdef _WIN32
|
|
DWORD_PTR mask1 = 0;
|
|
--mask1;
|
|
DWORD_PTR mask2 = 0;
|
|
--mask2;
|
|
GetProcessAffinityMask( GetCurrentProcess(), &mask1, &mask2 );
|
|
#else
|
|
int32 mask1=-1;
|
|
#endif
|
|
Msg( "ThreadPoolTest: Job distribution speed\n" );
|
|
for ( int i = 0; i < 2; i++ )
|
|
{
|
|
bool bToCompletion = ( i % 2 != 0 );
|
|
if ( !IsX360() )
|
|
{
|
|
Msg( "ThreadPoolTest: Non-distribute\n" );
|
|
ThreadPoolTest::Test( false, true, bToCompletion );
|
|
}
|
|
|
|
Msg( "ThreadPoolTest: Distribute\n" );
|
|
ThreadPoolTest::Test( true, true, bToCompletion );
|
|
|
|
Msg( "ThreadPoolTest: One core\n" );
|
|
ThreadSetAffinity( 0, 1 );
|
|
ThreadPoolTest::Test( false, true, bToCompletion );
|
|
ThreadSetAffinity( 0, mask1 );
|
|
|
|
Msg( "ThreadPoolTest: NO Sleep\n" );
|
|
ThreadPoolTest::Test( false, false, bToCompletion );
|
|
|
|
Msg( "ThreadPoolTest: Distribute\n" );
|
|
ThreadPoolTest::Test( true, false, bToCompletion );
|
|
|
|
Msg( "ThreadPoolTest: One core\n" );
|
|
ThreadSetAffinity( 0, 1 );
|
|
ThreadPoolTest::Test( false, false, bToCompletion );
|
|
ThreadSetAffinity( 0, mask1 );
|
|
}
|
|
|
|
Msg( "ThreadPoolTest: Jobs doing work\n" );
|
|
for ( int i = 0; i < 2; i++ )
|
|
{
|
|
bool bToCompletion = true;// = ( i % 2 != 0 );
|
|
if ( !IsX360() )
|
|
{
|
|
Msg( "ThreadPoolTest: Non-distribute\n" );
|
|
ThreadPoolTest::Test( false, true, bToCompletion, true );
|
|
}
|
|
|
|
Msg( "ThreadPoolTest: Distribute\n" );
|
|
ThreadPoolTest::Test( true, true, bToCompletion, true );
|
|
|
|
Msg( "ThreadPoolTest: One core\n" );
|
|
ThreadSetAffinity( 0, 1 );
|
|
ThreadPoolTest::Test( false, true, bToCompletion, true );
|
|
ThreadSetAffinity( 0, mask1 );
|
|
|
|
Msg( "ThreadPoolTest: NO Sleep\n" );
|
|
ThreadPoolTest::Test( false, false, bToCompletion, true );
|
|
|
|
Msg( "ThreadPoolTest: Distribute\n" );
|
|
ThreadPoolTest::Test( true, false, bToCompletion, true );
|
|
|
|
Msg( "ThreadPoolTest: One core\n" );
|
|
ThreadSetAffinity( 0, 1 );
|
|
ThreadPoolTest::Test( false, false, bToCompletion, true );
|
|
ThreadSetAffinity( 0, mask1 );
|
|
}
|
|
#ifdef _WIN32
|
|
GetProcessAffinityMask( GetCurrentProcess(), &mask1, &mask2 );
|
|
#endif
|
|
|
|
ThreadPoolTest::TestForcedExecute();
|
|
}
|