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1345 lines
42 KiB
1345 lines
42 KiB
5 years ago
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//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose: A utility for a discrete job-oriented worker thread.
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//
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// The class CThreadPool is both the job queue, and the
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// worker thread. Except when the main thread attempts to
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// synchronously execute a job, most of the inter-thread locking
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// on the queue.
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//
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// The queue threading model uses a manual reset event for optimal
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// throughput. Adding to the queue is guarded by a semaphore that
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// will block the inserting thread if the queue has overflown.
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// This prevents the worker thread from being starved out even if
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// not running at a higher priority than the master thread.
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//
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// The thread function waits for jobs, services jobs, and manages
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// communication between the worker and master threads. The nature
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// of the work is opaque to the Executer.
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//
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// CJob instances actually do the work. The base class
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// calls virtual methods for job primitives, so derivations don't
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// need to worry about threading models. All of the variants of
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// job and OS can be expressed in this hierarchy. Instances of
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// CJob are the items placed in the queue, and by
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// overriding the job primitives they are the manner by which
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// users of the Executer control the state of the job.
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//
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//=============================================================================
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#include <limits.h>
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#include "tier0/threadtools.h"
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#include "tier1/refcount.h"
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#include "tier1/utllinkedlist.h"
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#include "tier1/utlvector.h"
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#include "tier1/functors.h"
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#include "tier0/vprof_telemetry.h"
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#include "vstdlib/vstdlib.h"
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#ifndef JOBTHREAD_H
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#define JOBTHREAD_H
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#ifdef AddJob // windows.h print function collisions
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#undef AddJob
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#undef GetJob
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#endif
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#ifdef VSTDLIB_DLL_EXPORT
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#define JOB_INTERFACE DLL_EXPORT
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#define JOB_OVERLOAD DLL_GLOBAL_EXPORT
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#define JOB_CLASS DLL_CLASS_EXPORT
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#else
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#define JOB_INTERFACE DLL_IMPORT
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#define JOB_OVERLOAD DLL_GLOBAL_IMPORT
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#define JOB_CLASS DLL_CLASS_IMPORT
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#endif
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#if defined( _WIN32 )
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#pragma once
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#endif
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//-----------------------------------------------------------------------------
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//
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//-----------------------------------------------------------------------------
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class CJob;
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//-----------------------------------------------------------------------------
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//
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//-----------------------------------------------------------------------------
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enum JobStatusEnum_t
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{
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// Use negative for errors
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JOB_OK, // operation is successful
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JOB_STATUS_PENDING, // file is properly queued, waiting for service
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JOB_STATUS_INPROGRESS, // file is being accessed
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JOB_STATUS_ABORTED, // file was aborted by caller
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JOB_STATUS_UNSERVICED, // file is not yet queued
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};
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typedef int JobStatus_t;
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enum JobFlags_t
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{
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JF_IO = ( 1 << 0 ), // The job primarily blocks on IO or hardware
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JF_BOOST_THREAD = ( 1 << 1 ), // Up the thread priority to max allowed while processing task
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JF_SERIAL = ( 1 << 2 ), // Job cannot be executed out of order relative to other "strict" jobs
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JF_QUEUE = ( 1 << 3 ), // Queue it, even if not an IO job
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};
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enum JobPriority_t
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{
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JP_LOW,
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JP_NORMAL,
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JP_HIGH
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};
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#define TP_MAX_POOL_THREADS 64
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struct ThreadPoolStartParams_t
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{
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ThreadPoolStartParams_t( bool bIOThreads = false, unsigned nThreads = -1, int *pAffinities = NULL, ThreeState_t fDistribute = TRS_NONE, unsigned nStackSize = -1, int iThreadPriority = SHRT_MIN )
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: bIOThreads( bIOThreads ), nThreads( nThreads ), fDistribute( fDistribute ), nStackSize( nStackSize ), iThreadPriority( iThreadPriority ), nThreadsMax( -1 )
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{
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bExecOnThreadPoolThreadsOnly = false;
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bUseAffinityTable = ( pAffinities != NULL ) && ( fDistribute == TRS_TRUE ) && ( nThreads != -1 );
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if ( bUseAffinityTable )
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{
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// user supplied an optional 1:1 affinity mapping to override normal distribute behavior
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nThreads = MIN( TP_MAX_POOL_THREADS, nThreads );
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for ( unsigned int i = 0; i < nThreads; i++ )
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{
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iAffinityTable[i] = pAffinities[i];
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}
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}
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}
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int nThreads;
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int nThreadsMax;
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ThreeState_t fDistribute;
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int nStackSize;
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int iThreadPriority;
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int iAffinityTable[TP_MAX_POOL_THREADS];
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bool bIOThreads : 1;
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bool bUseAffinityTable : 1;
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bool bExecOnThreadPoolThreadsOnly : 1;
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};
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//-----------------------------------------------------------------------------
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//
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// IThreadPool
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//
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//-----------------------------------------------------------------------------
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typedef bool (*JobFilter_t)( CJob * );
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//---------------------------------------------------------
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// Messages supported through the CallWorker() method
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//---------------------------------------------------------
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enum ThreadPoolMessages_t
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{
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TPM_EXIT, // Exit the thread
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TPM_SUSPEND, // Suspend after next operation
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TPM_RUNFUNCTOR, // Run functor, reply when done.
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};
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//---------------------------------------------------------
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abstract_class IThreadPool : public IRefCounted
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{
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public:
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virtual ~IThreadPool() {};
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//-----------------------------------------------------
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// Thread functions
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//-----------------------------------------------------
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virtual bool Start( const ThreadPoolStartParams_t &startParams = ThreadPoolStartParams_t() ) = 0;
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virtual bool Stop( int timeout = TT_INFINITE ) = 0;
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//-----------------------------------------------------
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// Functions for any thread
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//-----------------------------------------------------
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virtual unsigned GetJobCount() = 0;
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virtual int NumThreads() = 0;
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virtual int NumIdleThreads() = 0;
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//-----------------------------------------------------
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// Pause/resume processing jobs
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//-----------------------------------------------------
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virtual int SuspendExecution() = 0;
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virtual int ResumeExecution() = 0;
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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 ) = 0;
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virtual int YieldWait( CJob **, int nJobs, bool bWaitAll = true, unsigned timeout = TT_INFINITE ) = 0;
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virtual void Yield( unsigned timeout ) = 0;
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bool YieldWait( CThreadEvent &event, unsigned timeout = TT_INFINITE );
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bool YieldWait( CJob *, unsigned timeout = TT_INFINITE );
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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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virtual void AddJob( CJob * ) = 0;
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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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virtual void ExecuteHighPriorityFunctor( CFunctor *pFunctor ) = 0;
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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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virtual void AddFunctor( CFunctor *pFunctor, CJob **ppJob = NULL, const char *pszDescription = NULL, unsigned flags = 0 ) { AddFunctorInternal( RetAddRef( pFunctor ), ppJob, pszDescription, flags ); }
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//-----------------------------------------------------
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// Change the priority of an active job
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//-----------------------------------------------------
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virtual void ChangePriority( CJob *p, JobPriority_t priority ) = 0;
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//-----------------------------------------------------
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// Bulk job manipulation (blocking)
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//-----------------------------------------------------
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int ExecuteAll( JobFilter_t pfnFilter = NULL ) { return ExecuteToPriority( JP_LOW, pfnFilter ); }
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virtual int ExecuteToPriority( JobPriority_t toPriority, JobFilter_t pfnFilter = NULL ) = 0;
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virtual int AbortAll() = 0;
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//-----------------------------------------------------
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virtual void Reserved1() = 0;
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//-----------------------------------------------------
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// Add an arbitrary call to the queue (master thread)
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//
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// Avert thy eyes! Imagine rather:
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//
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// CJob *AddCall( <function>, [args1, [arg2,]...]
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// CJob *AddCall( <object>, <function>, [args1, [arg2,]...]
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// CJob *AddRefCall( <object>, <function>, [args1, [arg2,]...]
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// CJob *QueueCall( <function>, [args1, [arg2,]...]
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// CJob *QueueCall( <object>, <function>, [args1, [arg2,]...]
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//-----------------------------------------------------
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#define DEFINE_NONMEMBER_ADD_CALL(N) \
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template <typename FUNCTION_RETTYPE FUNC_TEMPLATE_FUNC_PARAMS_##N FUNC_TEMPLATE_ARG_PARAMS_##N> \
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CJob *AddCall(FUNCTION_RETTYPE (*pfnProxied)( FUNC_BASE_TEMPLATE_FUNC_PARAMS_##N ) FUNC_ARG_FORMAL_PARAMS_##N ) \
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{ \
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CJob *pJob; \
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if ( !NumIdleThreads() ) \
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{ \
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pJob = GetDummyJob(); \
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FunctorDirectCall( pfnProxied FUNC_FUNCTOR_CALL_ARGS_##N ); \
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} \
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else \
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{ \
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AddFunctorInternal( CreateFunctor( pfnProxied FUNC_FUNCTOR_CALL_ARGS_##N ), &pJob ); \
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} \
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\
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return pJob; \
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}
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//-------------------------------------
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#define DEFINE_MEMBER_ADD_CALL(N) \
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template <typename OBJECT_TYPE, typename FUNCTION_CLASS, typename FUNCTION_RETTYPE FUNC_TEMPLATE_FUNC_PARAMS_##N FUNC_TEMPLATE_ARG_PARAMS_##N> \
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CJob *AddCall(OBJECT_TYPE *pObject, FUNCTION_RETTYPE ( FUNCTION_CLASS::*pfnProxied )( FUNC_BASE_TEMPLATE_FUNC_PARAMS_##N ) FUNC_ARG_FORMAL_PARAMS_##N ) \
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{ \
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CJob *pJob; \
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if ( !NumIdleThreads() ) \
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{ \
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pJob = GetDummyJob(); \
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FunctorDirectCall( pObject, pfnProxied FUNC_FUNCTOR_CALL_ARGS_##N ); \
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} \
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else \
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{ \
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AddFunctorInternal( CreateFunctor( pObject, pfnProxied FUNC_FUNCTOR_CALL_ARGS_##N ), &pJob ); \
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} \
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\
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return pJob; \
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}
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//-------------------------------------
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#define DEFINE_CONST_MEMBER_ADD_CALL(N) \
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template <typename OBJECT_TYPE, typename FUNCTION_CLASS, typename FUNCTION_RETTYPE FUNC_TEMPLATE_FUNC_PARAMS_##N FUNC_TEMPLATE_ARG_PARAMS_##N> \
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CJob *AddCall(OBJECT_TYPE *pObject, FUNCTION_RETTYPE ( FUNCTION_CLASS::*pfnProxied )( FUNC_BASE_TEMPLATE_FUNC_PARAMS_##N ) const FUNC_ARG_FORMAL_PARAMS_##N ) \
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{ \
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CJob *pJob; \
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if ( !NumIdleThreads() ) \
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{ \
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pJob = GetDummyJob(); \
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FunctorDirectCall( pObject, pfnProxied FUNC_FUNCTOR_CALL_ARGS_##N ); \
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} \
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else \
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{ \
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AddFunctorInternal( CreateFunctor( pObject, pfnProxied FUNC_FUNCTOR_CALL_ARGS_##N ), &pJob ); \
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} \
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\
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return pJob; \
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}
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//-------------------------------------
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#define DEFINE_REF_COUNTING_MEMBER_ADD_CALL(N) \
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template <typename OBJECT_TYPE, typename FUNCTION_CLASS, typename FUNCTION_RETTYPE FUNC_TEMPLATE_FUNC_PARAMS_##N FUNC_TEMPLATE_ARG_PARAMS_##N> \
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CJob *AddRefCall(OBJECT_TYPE *pObject, FUNCTION_RETTYPE ( FUNCTION_CLASS::*pfnProxied )( FUNC_BASE_TEMPLATE_FUNC_PARAMS_##N ) FUNC_ARG_FORMAL_PARAMS_##N ) \
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{ \
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CJob *pJob; \
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if ( !NumIdleThreads() ) \
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{ \
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pJob = GetDummyJob(); \
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FunctorDirectCall( pObject, pfnProxied FUNC_FUNCTOR_CALL_ARGS_##N ); \
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} \
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else \
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{ \
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AddFunctorInternal( CreateRefCountingFunctor( pObject, pfnProxied FUNC_FUNCTOR_CALL_ARGS_##N ), &pJob ); \
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} \
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\
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return pJob; \
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}
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||
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//-------------------------------------
|
||
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#define DEFINE_REF_COUNTING_CONST_MEMBER_ADD_CALL(N) \
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template <typename OBJECT_TYPE, typename FUNCTION_CLASS, typename FUNCTION_RETTYPE FUNC_TEMPLATE_FUNC_PARAMS_##N FUNC_TEMPLATE_ARG_PARAMS_##N> \
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CJob *AddRefCall(OBJECT_TYPE *pObject, FUNCTION_RETTYPE ( FUNCTION_CLASS::*pfnProxied )( FUNC_BASE_TEMPLATE_FUNC_PARAMS_##N ) const FUNC_ARG_FORMAL_PARAMS_##N ) \
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||
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{ \
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CJob *pJob; \
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||
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if ( !NumIdleThreads() ) \
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||
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{ \
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pJob = GetDummyJob(); \
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FunctorDirectCall( pObject, pfnProxied FUNC_FUNCTOR_CALL_ARGS_##N ); \
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} \
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||
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else \
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{ \
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AddFunctorInternal( CreateRefCountingFunctor( pObject, pfnProxied FUNC_FUNCTOR_CALL_ARGS_##N ), &pJob ); \
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||
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} \
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||
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\
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||
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return pJob; \
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||
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}
|
||
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||
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//-----------------------------------------------------------------------------
|
||
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|
||
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#define DEFINE_NONMEMBER_QUEUE_CALL(N) \
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template <typename FUNCTION_RETTYPE FUNC_TEMPLATE_FUNC_PARAMS_##N FUNC_TEMPLATE_ARG_PARAMS_##N> \
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CJob *QueueCall(FUNCTION_RETTYPE (*pfnProxied)( FUNC_BASE_TEMPLATE_FUNC_PARAMS_##N ) FUNC_ARG_FORMAL_PARAMS_##N ) \
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||
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{ \
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||
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CJob *pJob; \
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||
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AddFunctorInternal( CreateFunctor( pfnProxied FUNC_FUNCTOR_CALL_ARGS_##N ), &pJob, NULL, JF_QUEUE ); \
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||
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return pJob; \
|
||
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}
|
||
|
|
|
||
|
|
//-------------------------------------
|
||
|
|
|
||
|
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#define DEFINE_MEMBER_QUEUE_CALL(N) \
|
||
|
|
template <typename OBJECT_TYPE, typename FUNCTION_CLASS, typename FUNCTION_RETTYPE FUNC_TEMPLATE_FUNC_PARAMS_##N FUNC_TEMPLATE_ARG_PARAMS_##N> \
|
||
|
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CJob *QueueCall(OBJECT_TYPE *pObject, FUNCTION_RETTYPE ( FUNCTION_CLASS::*pfnProxied )( FUNC_BASE_TEMPLATE_FUNC_PARAMS_##N ) FUNC_ARG_FORMAL_PARAMS_##N ) \
|
||
|
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{ \
|
||
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CJob *pJob; \
|
||
|
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AddFunctorInternal( CreateFunctor( pObject, pfnProxied FUNC_FUNCTOR_CALL_ARGS_##N ), &pJob, NULL, JF_QUEUE ); \
|
||
|
|
return pJob; \
|
||
|
|
}
|
||
|
|
|
||
|
|
//-------------------------------------
|
||
|
|
|
||
|
|
#define DEFINE_CONST_MEMBER_QUEUE_CALL(N) \
|
||
|
|
template <typename OBJECT_TYPE, typename FUNCTION_CLASS, typename FUNCTION_RETTYPE FUNC_TEMPLATE_FUNC_PARAMS_##N FUNC_TEMPLATE_ARG_PARAMS_##N> \
|
||
|
|
CJob *QueueCall(OBJECT_TYPE *pObject, FUNCTION_RETTYPE ( FUNCTION_CLASS::*pfnProxied )( FUNC_BASE_TEMPLATE_FUNC_PARAMS_##N ) const FUNC_ARG_FORMAL_PARAMS_##N ) \
|
||
|
|
{ \
|
||
|
|
CJob *pJob; \
|
||
|
|
AddFunctorInternal( CreateFunctor( pObject, pfnProxied FUNC_FUNCTOR_CALL_ARGS_##N ), &pJob, NULL, JF_QUEUE ); \
|
||
|
|
return pJob; \
|
||
|
|
}
|
||
|
|
|
||
|
|
//-------------------------------------
|
||
|
|
|
||
|
|
#define DEFINE_REF_COUNTING_MEMBER_QUEUE_CALL(N) \
|
||
|
|
template <typename OBJECT_TYPE, typename FUNCTION_CLASS, typename FUNCTION_RETTYPE FUNC_TEMPLATE_FUNC_PARAMS_##N FUNC_TEMPLATE_ARG_PARAMS_##N> \
|
||
|
|
CJob *QueueRefCall(OBJECT_TYPE *pObject, FUNCTION_RETTYPE ( FUNCTION_CLASS::*pfnProxied )( FUNC_BASE_TEMPLATE_FUNC_PARAMS_##N ) FUNC_ARG_FORMAL_PARAMS_##N ) \
|
||
|
|
{ \
|
||
|
|
CJob *pJob; \
|
||
|
|
AddFunctorInternal( CreateRefCountingFunctor( pObject, pfnProxied FUNC_FUNCTOR_CALL_ARGS_##N ), &pJob, NULL, JF_QUEUE ); \
|
||
|
|
return pJob; \
|
||
|
|
}
|
||
|
|
|
||
|
|
//-------------------------------------
|
||
|
|
|
||
|
|
#define DEFINE_REF_COUNTING_CONST_MEMBER_QUEUE_CALL(N) \
|
||
|
|
template <typename OBJECT_TYPE, typename FUNCTION_CLASS, typename FUNCTION_RETTYPE FUNC_TEMPLATE_FUNC_PARAMS_##N FUNC_TEMPLATE_ARG_PARAMS_##N> \
|
||
|
|
CJob *QueueRefCall(OBJECT_TYPE *pObject, FUNCTION_RETTYPE ( FUNCTION_CLASS::*pfnProxied )( FUNC_BASE_TEMPLATE_FUNC_PARAMS_##N ) const FUNC_ARG_FORMAL_PARAMS_##N ) \
|
||
|
|
{ \
|
||
|
|
CJob *pJob; \
|
||
|
|
AddFunctorInternal( CreateRefCountingFunctor( pObject, pfnProxied FUNC_FUNCTOR_CALL_ARGS_##N ), &pJob, NULL, JF_QUEUE ); \
|
||
|
|
\
|
||
|
|
return pJob; \
|
||
|
|
}
|
||
|
|
|
||
|
|
FUNC_GENERATE_ALL( DEFINE_NONMEMBER_ADD_CALL );
|
||
|
|
FUNC_GENERATE_ALL( DEFINE_MEMBER_ADD_CALL );
|
||
|
|
FUNC_GENERATE_ALL( DEFINE_CONST_MEMBER_ADD_CALL );
|
||
|
|
FUNC_GENERATE_ALL( DEFINE_REF_COUNTING_MEMBER_ADD_CALL );
|
||
|
|
FUNC_GENERATE_ALL( DEFINE_REF_COUNTING_CONST_MEMBER_ADD_CALL );
|
||
|
|
FUNC_GENERATE_ALL( DEFINE_NONMEMBER_QUEUE_CALL );
|
||
|
|
FUNC_GENERATE_ALL( DEFINE_MEMBER_QUEUE_CALL );
|
||
|
|
FUNC_GENERATE_ALL( DEFINE_CONST_MEMBER_QUEUE_CALL );
|
||
|
|
FUNC_GENERATE_ALL( DEFINE_REF_COUNTING_MEMBER_QUEUE_CALL );
|
||
|
|
FUNC_GENERATE_ALL( DEFINE_REF_COUNTING_CONST_MEMBER_QUEUE_CALL );
|
||
|
|
|
||
|
|
#undef DEFINE_NONMEMBER_ADD_CALL
|
||
|
|
#undef DEFINE_MEMBER_ADD_CALL
|
||
|
|
#undef DEFINE_CONST_MEMBER_ADD_CALL
|
||
|
|
#undef DEFINE_REF_COUNTING_MEMBER_ADD_CALL
|
||
|
|
#undef DEFINE_REF_COUNTING_CONST_MEMBER_ADD_CALL
|
||
|
|
#undef DEFINE_NONMEMBER_QUEUE_CALL
|
||
|
|
#undef DEFINE_MEMBER_QUEUE_CALL
|
||
|
|
#undef DEFINE_CONST_MEMBER_QUEUE_CALL
|
||
|
|
#undef DEFINE_REF_COUNTING_MEMBER_QUEUE_CALL
|
||
|
|
#undef DEFINE_REF_COUNTING_CONST_MEMBER_QUEUE_CALL
|
||
|
|
|
||
|
|
private:
|
||
|
|
virtual void AddFunctorInternal( CFunctor *, CJob ** = NULL, const char *pszDescription = NULL, unsigned flags = 0 ) = 0;
|
||
|
|
|
||
|
|
//-----------------------------------------------------
|
||
|
|
// Services for internal use by job instances
|
||
|
|
//-----------------------------------------------------
|
||
|
|
friend class CJob;
|
||
|
|
|
||
|
|
virtual CJob *GetDummyJob() = 0;
|
||
|
|
|
||
|
|
public:
|
||
|
|
virtual void Distribute( bool bDistribute = true, int *pAffinityTable = NULL ) = 0;
|
||
|
|
|
||
|
|
virtual bool Start( const ThreadPoolStartParams_t &startParams, const char *pszNameOverride ) = 0;
|
||
|
|
};
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
JOB_INTERFACE IThreadPool *CreateThreadPool();
|
||
|
|
JOB_INTERFACE void DestroyThreadPool( IThreadPool *pPool );
|
||
|
|
|
||
|
|
//-------------------------------------
|
||
|
|
|
||
|
|
JOB_INTERFACE void RunThreadPoolTests();
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
JOB_INTERFACE IThreadPool *g_pThreadPool;
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Class to combine the metadata for an operation and the ability to perform
|
||
|
|
// the operation. Meant for inheritance. All functions inline, defers to executor
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
DECLARE_POINTER_HANDLE( ThreadPoolData_t );
|
||
|
|
#define JOB_NO_DATA ((ThreadPoolData_t)-1)
|
||
|
|
|
||
|
|
class CJob : public CRefCounted1<IRefCounted, CRefCountServiceMT>
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
CJob( JobPriority_t priority = JP_NORMAL )
|
||
|
|
: m_status( JOB_STATUS_UNSERVICED ),
|
||
|
|
m_ThreadPoolData( JOB_NO_DATA ),
|
||
|
|
m_priority( priority ),
|
||
|
|
m_flags( 0 ),
|
||
|
|
m_pThreadPool( NULL ),
|
||
|
|
m_CompleteEvent( true ),
|
||
|
|
m_iServicingThread( -1 )
|
||
|
|
{
|
||
|
|
m_szDescription[ 0 ] = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
//-----------------------------------------------------
|
||
|
|
// Priority (not thread safe)
|
||
|
|
//-----------------------------------------------------
|
||
|
|
void SetPriority( JobPriority_t priority ) { m_priority = priority; }
|
||
|
|
JobPriority_t GetPriority() const { return m_priority; }
|
||
|
|
|
||
|
|
//-----------------------------------------------------
|
||
|
|
|
||
|
|
void SetFlags( unsigned flags ) { m_flags = flags; }
|
||
|
|
unsigned GetFlags() const { return m_flags; }
|
||
|
|
|
||
|
|
//-----------------------------------------------------
|
||
|
|
|
||
|
|
void SetServiceThread( int iServicingThread ) { m_iServicingThread = (char)iServicingThread; }
|
||
|
|
int GetServiceThread() const { return m_iServicingThread; }
|
||
|
|
void ClearServiceThread() { m_iServicingThread = -1; }
|
||
|
|
|
||
|
|
//-----------------------------------------------------
|
||
|
|
// Fast queries
|
||
|
|
//-----------------------------------------------------
|
||
|
|
bool Executed() const { return ( m_status == JOB_OK ); }
|
||
|
|
bool CanExecute() const { return ( m_status == JOB_STATUS_PENDING || m_status == JOB_STATUS_UNSERVICED ); }
|
||
|
|
bool IsFinished() const { return ( m_status != JOB_STATUS_PENDING && m_status != JOB_STATUS_INPROGRESS && m_status != JOB_STATUS_UNSERVICED ); }
|
||
|
|
JobStatus_t GetStatus() const { return m_status; }
|
||
|
|
|
||
|
|
/// Slam the status to a particular value. This is named "slam" instead of "set,"
|
||
|
|
/// to warn you that it should only be used in unusual situations. Otherwise, the
|
||
|
|
/// job manager really should manage the status for you, and you should not manhandle it.
|
||
|
|
void SlamStatus(JobStatus_t s) { m_status = s; }
|
||
|
|
|
||
|
|
//-----------------------------------------------------
|
||
|
|
// Try to acquire ownership (to satisfy). If you take the lock, you must either execute or abort.
|
||
|
|
//-----------------------------------------------------
|
||
|
|
bool TryLock() { return m_mutex.TryLock(); }
|
||
|
|
void Lock() { m_mutex.Lock(); }
|
||
|
|
void Unlock() { m_mutex.Unlock(); }
|
||
|
|
|
||
|
|
//-----------------------------------------------------
|
||
|
|
// Thread event support (safe for NULL this to simplify code )
|
||
|
|
//-----------------------------------------------------
|
||
|
|
bool WaitForFinish( uint32 dwTimeout = TT_INFINITE ) { if (!this) return true; return ( !IsFinished() ) ? g_pThreadPool->YieldWait( this, dwTimeout ) : true; }
|
||
|
|
bool WaitForFinishAndRelease( uint32 dwTimeout = TT_INFINITE ) { if (!this) return true; bool bResult = WaitForFinish( dwTimeout); Release(); return bResult; }
|
||
|
|
CThreadEvent *AccessEvent() { return &m_CompleteEvent; }
|
||
|
|
|
||
|
|
//-----------------------------------------------------
|
||
|
|
// Perform the job
|
||
|
|
//-----------------------------------------------------
|
||
|
|
JobStatus_t Execute();
|
||
|
|
JobStatus_t TryExecute();
|
||
|
|
JobStatus_t ExecuteAndRelease() { JobStatus_t status = Execute(); Release(); return status; }
|
||
|
|
JobStatus_t TryExecuteAndRelease() { JobStatus_t status = TryExecute(); Release(); return status; }
|
||
|
|
|
||
|
|
//-----------------------------------------------------
|
||
|
|
// Terminate the job, discard if partially or wholly fulfilled
|
||
|
|
//-----------------------------------------------------
|
||
|
|
JobStatus_t Abort( bool bDiscard = true );
|
||
|
|
|
||
|
|
virtual char const *Describe() { return m_szDescription[ 0 ] ? m_szDescription : "Job"; }
|
||
|
|
virtual void SetDescription( const char *pszDescription )
|
||
|
|
{
|
||
|
|
if( pszDescription )
|
||
|
|
{
|
||
|
|
Q_strncpy( m_szDescription, pszDescription, sizeof( m_szDescription ) );
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
m_szDescription[ 0 ] = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
//-----------------------------------------------------
|
||
|
|
friend class CThreadPool;
|
||
|
|
|
||
|
|
JobStatus_t m_status;
|
||
|
|
JobPriority_t m_priority;
|
||
|
|
CThreadMutex m_mutex;
|
||
|
|
unsigned char m_flags;
|
||
|
|
char m_iServicingThread;
|
||
|
|
short m_reserved;
|
||
|
|
ThreadPoolData_t m_ThreadPoolData;
|
||
|
|
IThreadPool * m_pThreadPool;
|
||
|
|
CThreadEvent m_CompleteEvent;
|
||
|
|
char m_szDescription[ 32 ];
|
||
|
|
|
||
|
|
private:
|
||
|
|
//-----------------------------------------------------
|
||
|
|
CJob( const CJob &fromRequest );
|
||
|
|
void operator=(const CJob &fromRequest );
|
||
|
|
|
||
|
|
virtual JobStatus_t DoExecute() = 0;
|
||
|
|
virtual JobStatus_t DoAbort( bool bDiscard ) { return JOB_STATUS_ABORTED; }
|
||
|
|
virtual void DoCleanup() {}
|
||
|
|
};
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
class CFunctorJob : public CJob
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
CFunctorJob( CFunctor *pFunctor, const char *pszDescription = NULL )
|
||
|
|
: m_pFunctor( pFunctor )
|
||
|
|
{
|
||
|
|
if ( pszDescription )
|
||
|
|
{
|
||
|
|
Q_strncpy( m_szDescription, pszDescription, sizeof(m_szDescription) );
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
m_szDescription[0] = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
virtual JobStatus_t DoExecute()
|
||
|
|
{
|
||
|
|
(*m_pFunctor)();
|
||
|
|
return JOB_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
const char *Describe()
|
||
|
|
{
|
||
|
|
return m_szDescription;
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
CRefPtr<CFunctor> m_pFunctor;
|
||
|
|
char m_szDescription[16];
|
||
|
|
};
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Utility for managing multiple jobs
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
class CJobSet
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
CJobSet( CJob *pJob = NULL )
|
||
|
|
{
|
||
|
|
if ( pJob )
|
||
|
|
{
|
||
|
|
m_jobs.AddToTail( pJob );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
CJobSet( CJob **ppJobs, int nJobs )
|
||
|
|
{
|
||
|
|
if ( ppJobs )
|
||
|
|
{
|
||
|
|
m_jobs.AddMultipleToTail( nJobs, ppJobs );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
~CJobSet()
|
||
|
|
{
|
||
|
|
for ( int i = 0; i < m_jobs.Count(); i++ )
|
||
|
|
{
|
||
|
|
m_jobs[i]->Release();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void operator+=( CJob *pJob )
|
||
|
|
{
|
||
|
|
m_jobs.AddToTail( pJob );
|
||
|
|
}
|
||
|
|
|
||
|
|
void operator-=( CJob *pJob )
|
||
|
|
{
|
||
|
|
m_jobs.FindAndRemove( pJob );
|
||
|
|
}
|
||
|
|
|
||
|
|
void Execute( bool bRelease = true )
|
||
|
|
{
|
||
|
|
for ( int i = 0; i < m_jobs.Count(); i++ )
|
||
|
|
{
|
||
|
|
m_jobs[i]->Execute();
|
||
|
|
if ( bRelease )
|
||
|
|
{
|
||
|
|
m_jobs[i]->Release();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( bRelease )
|
||
|
|
{
|
||
|
|
m_jobs.RemoveAll();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void Abort( bool bRelease = true )
|
||
|
|
{
|
||
|
|
for ( int i = 0; i < m_jobs.Count(); i++ )
|
||
|
|
{
|
||
|
|
m_jobs[i]->Abort();
|
||
|
|
if ( bRelease )
|
||
|
|
{
|
||
|
|
m_jobs[i]->Release();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( bRelease )
|
||
|
|
{
|
||
|
|
m_jobs.RemoveAll();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void WaitForFinish( bool bRelease = true )
|
||
|
|
{
|
||
|
|
for ( int i = 0; i < m_jobs.Count(); i++ )
|
||
|
|
{
|
||
|
|
m_jobs[i]->WaitForFinish();
|
||
|
|
if ( bRelease )
|
||
|
|
{
|
||
|
|
m_jobs[i]->Release();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( bRelease )
|
||
|
|
{
|
||
|
|
m_jobs.RemoveAll();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void WaitForFinish( IThreadPool *pPool, bool bRelease = true )
|
||
|
|
{
|
||
|
|
pPool->YieldWait( m_jobs.Base(), m_jobs.Count() );
|
||
|
|
|
||
|
|
if ( bRelease )
|
||
|
|
{
|
||
|
|
for ( int i = 0; i < m_jobs.Count(); i++ )
|
||
|
|
{
|
||
|
|
m_jobs[i]->Release();
|
||
|
|
}
|
||
|
|
|
||
|
|
m_jobs.RemoveAll();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
CUtlVectorFixed<CJob *, 16> m_jobs;
|
||
|
|
};
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Job helpers
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
#define ThreadExecute g_pThreadPool->QueueCall
|
||
|
|
#define ThreadExecuteRef g_pThreadPool->QueueRefCall
|
||
|
|
|
||
|
|
#define BeginExecuteParallel() do { CJobSet jobSet
|
||
|
|
#define EndExecuteParallel() jobSet.WaitForFinish( g_pThreadPool ); } while (0)
|
||
|
|
|
||
|
|
#define ExecuteParallel jobSet += g_pThreadPool->QueueCall
|
||
|
|
#define ExecuteRefParallel jobSet += g_pThreadPool->QueueCallRef
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Work splitting: array split, best when cost per item is roughly equal
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
#ifdef _MSC_VER
|
||
|
|
#pragma warning(push)
|
||
|
|
#pragma warning(disable:4389)
|
||
|
|
#pragma warning(disable:4018)
|
||
|
|
#pragma warning(disable:4701)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define DEFINE_NON_MEMBER_ITER_RANGE_PARALLEL(N) \
|
||
|
|
template <typename FUNCTION_CLASS, typename FUNCTION_RETTYPE FUNC_TEMPLATE_FUNC_PARAMS_##N FUNC_TEMPLATE_ARG_PARAMS_##N, typename ITERTYPE1, typename ITERTYPE2> \
|
||
|
|
void IterRangeParallel(FUNCTION_RETTYPE ( FUNCTION_CLASS::*pfnProxied )( ITERTYPE1, ITERTYPE2 FUNC_ADDL_TEMPLATE_FUNC_PARAMS_##N ), ITERTYPE1 from, ITERTYPE2 to FUNC_ARG_FORMAL_PARAMS_##N ) \
|
||
|
|
{ \
|
||
|
|
const int MAX_THREADS = 16; \
|
||
|
|
int nIdle = g_pThreadPool->NumIdleThreads(); \
|
||
|
|
ITERTYPE1 range = to - from; \
|
||
|
|
int nThreads = MIN( nIdle + 1, range ); \
|
||
|
|
if ( nThreads > MAX_THREADS ) \
|
||
|
|
{ \
|
||
|
|
nThreads = MAX_THREADS; \
|
||
|
|
} \
|
||
|
|
if ( nThreads < 2 ) \
|
||
|
|
{ \
|
||
|
|
FunctorDirectCall( pfnProxied, from, to FUNC_FUNCTOR_CALL_ARGS_##N ); \
|
||
|
|
} \
|
||
|
|
else \
|
||
|
|
{ \
|
||
|
|
ITERTYPE1 nIncrement = range / nThreads; \
|
||
|
|
\
|
||
|
|
CJobSet jobSet; \
|
||
|
|
while ( --nThreads ) \
|
||
|
|
{ \
|
||
|
|
ITERTYPE2 thisTo = from + nIncrement; \
|
||
|
|
jobSet += g_pThreadPool->AddCall( pfnProxied, from, thisTo FUNC_FUNCTOR_CALL_ARGS_##N ); \
|
||
|
|
from = thisTo; \
|
||
|
|
} \
|
||
|
|
FunctorDirectCall( pfnProxied, from, to FUNC_FUNCTOR_CALL_ARGS_##N ); \
|
||
|
|
jobSet.WaitForFinish( g_pThreadPool ); \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
}
|
||
|
|
|
||
|
|
FUNC_GENERATE_ALL( DEFINE_NON_MEMBER_ITER_RANGE_PARALLEL );
|
||
|
|
|
||
|
|
#define DEFINE_MEMBER_ITER_RANGE_PARALLEL(N) \
|
||
|
|
template <typename OBJECT_TYPE, typename FUNCTION_CLASS, typename FUNCTION_RETTYPE FUNC_TEMPLATE_FUNC_PARAMS_##N FUNC_TEMPLATE_ARG_PARAMS_##N, typename ITERTYPE1, typename ITERTYPE2> \
|
||
|
|
void IterRangeParallel(OBJECT_TYPE *pObject, FUNCTION_RETTYPE ( FUNCTION_CLASS::*pfnProxied )( ITERTYPE1, ITERTYPE2 FUNC_ADDL_TEMPLATE_FUNC_PARAMS_##N ), ITERTYPE1 from, ITERTYPE2 to FUNC_ARG_FORMAL_PARAMS_##N ) \
|
||
|
|
{ \
|
||
|
|
const int MAX_THREADS = 16; \
|
||
|
|
int nIdle = g_pThreadPool->NumIdleThreads(); \
|
||
|
|
ITERTYPE1 range = to - from; \
|
||
|
|
int nThreads = MIN( nIdle + 1, range ); \
|
||
|
|
if ( nThreads > MAX_THREADS ) \
|
||
|
|
{ \
|
||
|
|
nThreads = MAX_THREADS; \
|
||
|
|
} \
|
||
|
|
if ( nThreads < 2 ) \
|
||
|
|
{ \
|
||
|
|
FunctorDirectCall( pObject, pfnProxied, from, to FUNC_FUNCTOR_CALL_ARGS_##N ); \
|
||
|
|
} \
|
||
|
|
else \
|
||
|
|
{ \
|
||
|
|
ITERTYPE1 nIncrement = range / nThreads; \
|
||
|
|
\
|
||
|
|
CJobSet jobSet; \
|
||
|
|
while ( --nThreads ) \
|
||
|
|
{ \
|
||
|
|
ITERTYPE2 thisTo = from + nIncrement; \
|
||
|
|
jobSet += g_pThreadPool->AddCall( pObject, pfnProxied, from, thisTo FUNC_FUNCTOR_CALL_ARGS_##N ); \
|
||
|
|
from = thisTo; \
|
||
|
|
} \
|
||
|
|
FunctorDirectCall( pObject, pfnProxied, from, to FUNC_FUNCTOR_CALL_ARGS_##N ); \
|
||
|
|
jobSet.WaitForFinish( g_pThreadPool ); \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
}
|
||
|
|
|
||
|
|
FUNC_GENERATE_ALL( DEFINE_MEMBER_ITER_RANGE_PARALLEL );
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Work splitting: competitive, best when cost per item varies a lot
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
template <typename T>
|
||
|
|
class CJobItemProcessor
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
typedef T ItemType_t;
|
||
|
|
void Begin() {}
|
||
|
|
// void Process( ItemType_t & ) {}
|
||
|
|
void End() {}
|
||
|
|
};
|
||
|
|
|
||
|
|
template <typename T>
|
||
|
|
class CFuncJobItemProcessor : public CJobItemProcessor<T>
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
void Init(void (*pfnProcess)( T & ), void (*pfnBegin)() = NULL, void (*pfnEnd)() = NULL )
|
||
|
|
{
|
||
|
|
m_pfnProcess = pfnProcess;
|
||
|
|
m_pfnBegin = pfnBegin;
|
||
|
|
m_pfnEnd = pfnEnd;
|
||
|
|
}
|
||
|
|
|
||
|
|
//CFuncJobItemProcessor(OBJECT_TYPE_PTR pObject, void (FUNCTION_CLASS::*pfnProcess)( ITEM_TYPE & ), void (*pfnBegin)() = NULL, void (*pfnEnd)() = NULL );
|
||
|
|
void Begin() { if ( m_pfnBegin ) (*m_pfnBegin)(); }
|
||
|
|
void Process( T &item ) { (*m_pfnProcess)( item ); }
|
||
|
|
void End() { if ( m_pfnEnd ) (*m_pfnEnd)(); }
|
||
|
|
|
||
|
|
protected:
|
||
|
|
void (*m_pfnProcess)( T & );
|
||
|
|
void (*m_pfnBegin)();
|
||
|
|
void (*m_pfnEnd)();
|
||
|
|
};
|
||
|
|
|
||
|
|
template <typename T, class OBJECT_TYPE, class FUNCTION_CLASS = OBJECT_TYPE >
|
||
|
|
class CMemberFuncJobItemProcessor : public CJobItemProcessor<T>
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
void Init( OBJECT_TYPE *pObject, void (FUNCTION_CLASS::*pfnProcess)( T & ), void (FUNCTION_CLASS::*pfnBegin)() = NULL, void (FUNCTION_CLASS::*pfnEnd)() = NULL )
|
||
|
|
{
|
||
|
|
m_pObject = pObject;
|
||
|
|
m_pfnProcess = pfnProcess;
|
||
|
|
m_pfnBegin = pfnBegin;
|
||
|
|
m_pfnEnd = pfnEnd;
|
||
|
|
}
|
||
|
|
|
||
|
|
void Begin() { if ( m_pfnBegin ) ((*m_pObject).*m_pfnBegin)(); }
|
||
|
|
void Process( T &item ) { ((*m_pObject).*m_pfnProcess)( item ); }
|
||
|
|
void End() { if ( m_pfnEnd ) ((*m_pObject).*m_pfnEnd)(); }
|
||
|
|
|
||
|
|
protected:
|
||
|
|
OBJECT_TYPE *m_pObject;
|
||
|
|
void (FUNCTION_CLASS::*m_pfnProcess)( T & );
|
||
|
|
void (FUNCTION_CLASS::*m_pfnBegin)();
|
||
|
|
void (FUNCTION_CLASS::*m_pfnEnd)();
|
||
|
|
};
|
||
|
|
|
||
|
|
template <typename ITEM_TYPE, class ITEM_PROCESSOR_TYPE>
|
||
|
|
class CParallelProcessor
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
CParallelProcessor( const char *pszDescription )
|
||
|
|
{
|
||
|
|
m_pItems = m_pLimit= 0;
|
||
|
|
m_szDescription = pszDescription;
|
||
|
|
}
|
||
|
|
|
||
|
|
void Run( ITEM_TYPE *pItems, unsigned nItems, int nMaxParallel = INT_MAX, IThreadPool *pThreadPool = NULL )
|
||
|
|
{
|
||
|
|
tmZone( TELEMETRY_LEVEL0, TMZF_NONE, "Run %s %d", m_szDescription, nItems );
|
||
|
|
|
||
|
|
if ( nItems == 0 )
|
||
|
|
return;
|
||
|
|
|
||
|
|
if ( !pThreadPool )
|
||
|
|
{
|
||
|
|
pThreadPool = g_pThreadPool;
|
||
|
|
}
|
||
|
|
|
||
|
|
m_pItems = pItems;
|
||
|
|
m_pLimit = pItems + nItems;
|
||
|
|
|
||
|
|
int nJobs = nItems - 1;
|
||
|
|
|
||
|
|
if ( nJobs > nMaxParallel )
|
||
|
|
{
|
||
|
|
nJobs = nMaxParallel;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (! pThreadPool ) // only possible on linux
|
||
|
|
{
|
||
|
|
DoExecute( );
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
int nThreads = pThreadPool->NumThreads();
|
||
|
|
if ( nJobs > nThreads )
|
||
|
|
{
|
||
|
|
nJobs = nThreads;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( nJobs > 1 )
|
||
|
|
{
|
||
|
|
CJob **jobs = (CJob **)stackalloc( nJobs * sizeof(CJob **) );
|
||
|
|
int i = nJobs;
|
||
|
|
|
||
|
|
while( i-- )
|
||
|
|
{
|
||
|
|
jobs[i] = pThreadPool->QueueCall( this, &CParallelProcessor<ITEM_TYPE, ITEM_PROCESSOR_TYPE>::DoExecute );
|
||
|
|
jobs[i]->SetDescription( m_szDescription );
|
||
|
|
}
|
||
|
|
|
||
|
|
DoExecute();
|
||
|
|
|
||
|
|
for ( i = 0; i < nJobs; i++ )
|
||
|
|
{
|
||
|
|
jobs[i]->Abort(); // will either abort ones that never got a thread, or noop on ones that did
|
||
|
|
jobs[i]->Release();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
DoExecute();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
ITEM_PROCESSOR_TYPE m_ItemProcessor;
|
||
|
|
|
||
|
|
private:
|
||
|
|
void DoExecute()
|
||
|
|
{
|
||
|
|
tmZone( TELEMETRY_LEVEL0, TMZF_NONE, "DoExecute %s", m_szDescription );
|
||
|
|
|
||
|
|
if ( m_pItems < m_pLimit )
|
||
|
|
{
|
||
|
|
m_ItemProcessor.Begin();
|
||
|
|
|
||
|
|
ITEM_TYPE *pLimit = m_pLimit;
|
||
|
|
|
||
|
|
for (;;)
|
||
|
|
{
|
||
|
|
ITEM_TYPE *pCurrent = m_pItems++;
|
||
|
|
if ( pCurrent < pLimit )
|
||
|
|
{
|
||
|
|
m_ItemProcessor.Process( *pCurrent );
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
m_ItemProcessor.End();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
CInterlockedPtr<ITEM_TYPE> m_pItems;
|
||
|
|
ITEM_TYPE * m_pLimit;
|
||
|
|
const char * m_szDescription;
|
||
|
|
};
|
||
|
|
|
||
|
|
template <typename ITEM_TYPE>
|
||
|
|
inline void ParallelProcess( const char *pszDescription, ITEM_TYPE *pItems, unsigned nItems, void (*pfnProcess)( ITEM_TYPE & ), void (*pfnBegin)() = NULL, void (*pfnEnd)() = NULL, int nMaxParallel = INT_MAX )
|
||
|
|
{
|
||
|
|
CParallelProcessor<ITEM_TYPE, CFuncJobItemProcessor<ITEM_TYPE> > processor( pszDescription );
|
||
|
|
processor.m_ItemProcessor.Init( pfnProcess, pfnBegin, pfnEnd );
|
||
|
|
processor.Run( pItems, nItems, nMaxParallel );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
template <typename ITEM_TYPE, typename OBJECT_TYPE, typename FUNCTION_CLASS >
|
||
|
|
inline void ParallelProcess( const char *pszDescription, ITEM_TYPE *pItems, unsigned nItems, OBJECT_TYPE *pObject, void (FUNCTION_CLASS::*pfnProcess)( ITEM_TYPE & ), void (FUNCTION_CLASS::*pfnBegin)() = NULL, void (FUNCTION_CLASS::*pfnEnd)() = NULL, int nMaxParallel = INT_MAX )
|
||
|
|
{
|
||
|
|
CParallelProcessor<ITEM_TYPE, CMemberFuncJobItemProcessor<ITEM_TYPE, OBJECT_TYPE, FUNCTION_CLASS> > processor( pszDescription );
|
||
|
|
processor.m_ItemProcessor.Init( pObject, pfnProcess, pfnBegin, pfnEnd );
|
||
|
|
processor.Run( pItems, nItems, nMaxParallel );
|
||
|
|
}
|
||
|
|
|
||
|
|
// Parallel Process that lets you specify threadpool
|
||
|
|
template <typename ITEM_TYPE>
|
||
|
|
inline void ParallelProcess( const char *pszDescription, IThreadPool *pPool, ITEM_TYPE *pItems, unsigned nItems, void (*pfnProcess)( ITEM_TYPE & ), void (*pfnBegin)() = NULL, void (*pfnEnd)() = NULL, int nMaxParallel = INT_MAX )
|
||
|
|
{
|
||
|
|
CParallelProcessor<ITEM_TYPE, CFuncJobItemProcessor<ITEM_TYPE> > processor( pszDescription );
|
||
|
|
processor.m_ItemProcessor.Init( pfnProcess, pfnBegin, pfnEnd );
|
||
|
|
processor.Run( pItems, nItems, nMaxParallel, pPool );
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class ITEM_PROCESSOR_TYPE>
|
||
|
|
class CParallelLoopProcessor
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
CParallelLoopProcessor( const char *pszDescription )
|
||
|
|
{
|
||
|
|
m_lIndex = m_lLimit= 0;
|
||
|
|
m_nActive = 0;
|
||
|
|
m_szDescription = pszDescription;
|
||
|
|
}
|
||
|
|
|
||
|
|
void Run( long lBegin, long nItems, int nMaxParallel = INT_MAX )
|
||
|
|
{
|
||
|
|
if ( nItems )
|
||
|
|
{
|
||
|
|
m_lIndex = lBegin;
|
||
|
|
m_lLimit = lBegin + nItems;
|
||
|
|
int i = g_pThreadPool->NumIdleThreads();
|
||
|
|
|
||
|
|
if ( nMaxParallel < i)
|
||
|
|
{
|
||
|
|
i = nMaxParallel;
|
||
|
|
}
|
||
|
|
|
||
|
|
while( i-- )
|
||
|
|
{
|
||
|
|
++m_nActive;
|
||
|
|
ThreadExecute( this, &CParallelLoopProcessor<ITEM_PROCESSOR_TYPE>::DoExecute )->Release();
|
||
|
|
}
|
||
|
|
|
||
|
|
++m_nActive;
|
||
|
|
DoExecute();
|
||
|
|
|
||
|
|
while ( m_nActive )
|
||
|
|
{
|
||
|
|
ThreadPause();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
ITEM_PROCESSOR_TYPE m_ItemProcessor;
|
||
|
|
|
||
|
|
private:
|
||
|
|
void DoExecute()
|
||
|
|
{
|
||
|
|
tmZone( TELEMETRY_LEVEL0, TMZF_NONE, "DoExecute %s", m_szDescription );
|
||
|
|
|
||
|
|
m_ItemProcessor.Begin();
|
||
|
|
|
||
|
|
long lLimit = m_lLimit;
|
||
|
|
|
||
|
|
for (;;)
|
||
|
|
{
|
||
|
|
long lIndex = m_lIndex ++;
|
||
|
|
if ( lIndex < lLimit )
|
||
|
|
{
|
||
|
|
m_ItemProcessor.Process( lIndex );
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
m_ItemProcessor.End();
|
||
|
|
|
||
|
|
--m_nActive;
|
||
|
|
}
|
||
|
|
CInterlockedInt m_lIndex;
|
||
|
|
long m_lLimit;
|
||
|
|
CInterlockedInt m_nActive;
|
||
|
|
const char * m_szDescription;
|
||
|
|
};
|
||
|
|
|
||
|
|
inline void ParallelLoopProcess( const char *szDescription, long lBegin, unsigned nItems, void (*pfnProcess)( long const & ), void (*pfnBegin)() = NULL, void (*pfnEnd)() = NULL, int nMaxParallel = INT_MAX )
|
||
|
|
{
|
||
|
|
CParallelLoopProcessor< CFuncJobItemProcessor< long const > > processor( szDescription );
|
||
|
|
processor.m_ItemProcessor.Init( pfnProcess, pfnBegin, pfnEnd );
|
||
|
|
processor.Run( lBegin, nItems, nMaxParallel );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
template < typename OBJECT_TYPE, typename FUNCTION_CLASS >
|
||
|
|
inline void ParallelLoopProcess( const char *szDescription, long lBegin, unsigned nItems, OBJECT_TYPE *pObject, void (FUNCTION_CLASS::*pfnProcess)( long const & ), void (FUNCTION_CLASS::*pfnBegin)() = NULL, void (FUNCTION_CLASS::*pfnEnd)() = NULL, int nMaxParallel = INT_MAX )
|
||
|
|
{
|
||
|
|
CParallelLoopProcessor< CMemberFuncJobItemProcessor<long const, OBJECT_TYPE, FUNCTION_CLASS> > processor( szDescription );
|
||
|
|
processor.m_ItemProcessor.Init( pObject, pfnProcess, pfnBegin, pfnEnd );
|
||
|
|
processor.Run( lBegin, nItems, nMaxParallel );
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class Derived>
|
||
|
|
class CParallelProcessorBase
|
||
|
|
{
|
||
|
|
protected:
|
||
|
|
typedef CParallelProcessorBase<Derived> ThisParallelProcessorBase_t;
|
||
|
|
typedef Derived ThisParallelProcessorDerived_t;
|
||
|
|
|
||
|
|
public:
|
||
|
|
CParallelProcessorBase()
|
||
|
|
{
|
||
|
|
m_nActive = 0;
|
||
|
|
m_szDescription = NULL;
|
||
|
|
}
|
||
|
|
void SetDescription( const char *pszDescription )
|
||
|
|
{
|
||
|
|
m_szDescription = pszDescription;
|
||
|
|
}
|
||
|
|
|
||
|
|
protected:
|
||
|
|
void Run( int nMaxParallel = INT_MAX, int threadOverride = -1 )
|
||
|
|
{
|
||
|
|
int i = g_pThreadPool->NumIdleThreads();
|
||
|
|
|
||
|
|
if ( nMaxParallel < i)
|
||
|
|
{
|
||
|
|
i = nMaxParallel;
|
||
|
|
}
|
||
|
|
|
||
|
|
while( i -- > 0 )
|
||
|
|
{
|
||
|
|
if ( threadOverride == -1 || i == threadOverride - 1 )
|
||
|
|
{
|
||
|
|
++ m_nActive;
|
||
|
|
ThreadExecute( this, &ThisParallelProcessorBase_t::DoExecute )->Release();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( threadOverride == -1 || threadOverride == 0 )
|
||
|
|
{
|
||
|
|
++ m_nActive;
|
||
|
|
DoExecute();
|
||
|
|
}
|
||
|
|
|
||
|
|
while ( m_nActive )
|
||
|
|
{
|
||
|
|
ThreadPause();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
protected:
|
||
|
|
void OnBegin() {}
|
||
|
|
bool OnProcess() { return false; }
|
||
|
|
void OnEnd() {}
|
||
|
|
|
||
|
|
private:
|
||
|
|
void DoExecute()
|
||
|
|
{
|
||
|
|
tmZone( TELEMETRY_LEVEL0, TMZF_NONE, "DoExecute %s", m_szDescription );
|
||
|
|
|
||
|
|
static_cast<Derived *>( this )->OnBegin();
|
||
|
|
|
||
|
|
while ( static_cast<Derived *>( this )->OnProcess() )
|
||
|
|
continue;
|
||
|
|
|
||
|
|
static_cast<Derived *>(this)->OnEnd();
|
||
|
|
|
||
|
|
-- m_nActive;
|
||
|
|
}
|
||
|
|
|
||
|
|
CInterlockedInt m_nActive;
|
||
|
|
const char * m_szDescription;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Raw thread launching
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
inline unsigned FunctorExecuteThread( void *pParam )
|
||
|
|
{
|
||
|
|
CFunctor *pFunctor = (CFunctor *)pParam;
|
||
|
|
(*pFunctor)();
|
||
|
|
pFunctor->Release();
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline ThreadHandle_t ThreadExecuteSoloImpl( CFunctor *pFunctor, const char *pszName = NULL )
|
||
|
|
{
|
||
|
|
ThreadHandle_t hThread;
|
||
|
|
ThreadId_t threadId;
|
||
|
|
hThread = CreateSimpleThread( FunctorExecuteThread, pFunctor, &threadId );
|
||
|
|
if ( pszName )
|
||
|
|
{
|
||
|
|
ThreadSetDebugName( threadId, pszName );
|
||
|
|
}
|
||
|
|
return hThread;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline ThreadHandle_t ThreadExecuteSolo( CJob *pJob ) { return ThreadExecuteSoloImpl( CreateFunctor( pJob, &CJob::Execute ), pJob->Describe() ); }
|
||
|
|
|
||
|
|
template <typename T1>
|
||
|
|
inline ThreadHandle_t ThreadExecuteSolo( const char *pszName, T1 a1 ) { return ThreadExecuteSoloImpl( CreateFunctor( a1 ), pszName ); }
|
||
|
|
|
||
|
|
template <typename T1, typename T2>
|
||
|
|
inline ThreadHandle_t ThreadExecuteSolo( const char *pszName, T1 a1, T2 a2 ) { return ThreadExecuteSoloImpl( CreateFunctor( a1, a2 ), pszName ); }
|
||
|
|
|
||
|
|
template <typename T1, typename T2, typename T3>
|
||
|
|
inline ThreadHandle_t ThreadExecuteSolo( const char *pszName, T1 a1, T2 a2, T3 a3 ) { return ThreadExecuteSoloImpl( CreateFunctor( a1, a2, a3 ), pszName ); }
|
||
|
|
|
||
|
|
template <typename T1, typename T2, typename T3, typename T4>
|
||
|
|
inline ThreadHandle_t ThreadExecuteSolo( const char *pszName, T1 a1, T2 a2, T3 a3, T4 a4 ) { return ThreadExecuteSoloImpl( CreateFunctor( a1, a2, a3, a4 ), pszName ); }
|
||
|
|
|
||
|
|
template <typename T1, typename T2, typename T3, typename T4, typename T5>
|
||
|
|
inline ThreadHandle_t ThreadExecuteSolo( const char *pszName, T1 a1, T2 a2, T3 a3, T4 a4, T5 a5 ) { return ThreadExecuteSoloImpl( CreateFunctor( a1, a2, a3, a4, a5 ), pszName ); }
|
||
|
|
|
||
|
|
template <typename T1, typename T2, typename T3, typename T4, typename T5, typename T6>
|
||
|
|
inline ThreadHandle_t ThreadExecuteSolo( const char *pszName, T1 a1, T2 a2, T3 a3, T4 a4, T5 a5, T6 a6 ) { return ThreadExecuteSoloImpl( CreateFunctor( a1, a2, a3, a4, a5, a6 ), pszName ); }
|
||
|
|
|
||
|
|
template <typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7>
|
||
|
|
inline ThreadHandle_t ThreadExecuteSolo( const char *pszName, T1 a1, T2 a2, T3 a3, T4 a4, T5 a5, T6 a6, T7 a7 ) { return ThreadExecuteSoloImpl( CreateFunctor( a1, a2, a3, a4, a5, a6, a7 ), pszName ); }
|
||
|
|
|
||
|
|
template <typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7, typename T8>
|
||
|
|
inline ThreadHandle_t ThreadExecuteSolo( const char *pszName, T1 a1, T2 a2, T3 a3, T4 a4, T5 a5, T6 a6, T7 a7, T8 a8 ) { return ThreadExecuteSoloImpl( CreateFunctor( a1, a2, a3, a4, a5, a6, a7, a8 ), pszName ); }
|
||
|
|
|
||
|
|
template <typename T1, typename T2>
|
||
|
|
inline ThreadHandle_t ThreadExecuteSoloRef( const char *pszName, T1 a1, T2 a2 ) { return ThreadExecuteSoloImpl( CreateRefCountingFunctor(a1, a2 ), pszName ); }
|
||
|
|
|
||
|
|
template <typename T1, typename T2, typename T3>
|
||
|
|
inline ThreadHandle_t ThreadExecuteSoloRef( const char *pszName, T1 a1, T2 a2, T3 a3 ) { return ThreadExecuteSoloImpl( CreateRefCountingFunctor(a1, a2, a3 ), pszName ); }
|
||
|
|
|
||
|
|
template <typename T1, typename T2, typename T3, typename T4>
|
||
|
|
inline ThreadHandle_t ThreadExecuteSoloRef( const char *pszName, T1 a1, T2 a2, T3 a3, T4 a4 ) { return ThreadExecuteSoloImpl( CreateRefCountingFunctor(a1, a2, a3, a4 ), pszName ); }
|
||
|
|
|
||
|
|
template <typename T1, typename T2, typename T3, typename T4, typename T5>
|
||
|
|
inline ThreadHandle_t ThreadExecuteSoloRef( const char *pszName, T1 a1, T2 a2, T3 a3, T4 a4, T5 a5 ) { return ThreadExecuteSoloImpl( CreateRefCountingFunctor(a1, a2, a3, a4, a5 ), pszName ); }
|
||
|
|
|
||
|
|
template <typename T1, typename T2, typename T3, typename T4, typename T5, typename T6>
|
||
|
|
inline ThreadHandle_t ThreadExecuteSoloRef( const char *pszName, T1 a1, T2 a2, T3 a3, T4 a4, T5 a5, T6 a6 ) { return ThreadExecuteSoloImpl( CreateRefCountingFunctor(a1, a2, a3, a4, a5, a6 ), pszName ); }
|
||
|
|
|
||
|
|
template <typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7>
|
||
|
|
inline ThreadHandle_t ThreadExecuteSoloRef( const char *pszName, T1 a1, T2 a2, T3 a3, T4 a4, T5 a5, T6 a6, T7 a7 ) { return ThreadExecuteSoloImpl( CreateRefCountingFunctor(a1, a2, a3, a4, a5, a6, a7 ), pszName ); }
|
||
|
|
|
||
|
|
template <typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7, typename T8>
|
||
|
|
inline ThreadHandle_t ThreadExecuteSoloRef( const char *pszName, T1 a1, T2 a2, T3 a3, T4 a4, T5 a5, T6 a6, T7 a7, T8 a8 ) { return ThreadExecuteSoloImpl( CreateRefCountingFunctor(a1, a2, a3, a4, a5, a6, a7, a8 ), pszName ); }
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
inline bool IThreadPool::YieldWait( CThreadEvent &event, unsigned timeout )
|
||
|
|
{
|
||
|
|
CThreadEvent *pEvent = &event;
|
||
|
|
return ( YieldWait( &pEvent, 1, true, timeout ) != TW_TIMEOUT );
|
||
|
|
}
|
||
|
|
|
||
|
|
inline bool IThreadPool::YieldWait( CJob *pJob, unsigned timeout )
|
||
|
|
{
|
||
|
|
return ( YieldWait( &pJob, 1, true, timeout ) != TW_TIMEOUT );
|
||
|
|
}
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
inline JobStatus_t CJob::Execute()
|
||
|
|
{
|
||
|
|
if ( IsFinished() )
|
||
|
|
{
|
||
|
|
return m_status;
|
||
|
|
}
|
||
|
|
|
||
|
|
tmZone( TELEMETRY_LEVEL0, TMZF_NONE, "%s %s %d", __FUNCTION__, Describe(), m_status );
|
||
|
|
|
||
|
|
AUTO_LOCK( m_mutex );
|
||
|
|
AddRef();
|
||
|
|
|
||
|
|
JobStatus_t result;
|
||
|
|
|
||
|
|
switch ( m_status )
|
||
|
|
{
|
||
|
|
case JOB_STATUS_UNSERVICED:
|
||
|
|
case JOB_STATUS_PENDING:
|
||
|
|
{
|
||
|
|
// Service it
|
||
|
|
m_status = JOB_STATUS_INPROGRESS;
|
||
|
|
result = m_status = DoExecute();
|
||
|
|
DoCleanup();
|
||
|
|
m_CompleteEvent.Set();
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
case JOB_STATUS_INPROGRESS:
|
||
|
|
AssertMsg(0, "Mutex Should have protected use while processing");
|
||
|
|
// fall through...
|
||
|
|
|
||
|
|
case JOB_OK:
|
||
|
|
case JOB_STATUS_ABORTED:
|
||
|
|
result = m_status;
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
AssertMsg( m_status < JOB_OK, "Unknown job state");
|
||
|
|
result = m_status;
|
||
|
|
}
|
||
|
|
|
||
|
|
Release();
|
||
|
|
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//---------------------------------------------------------
|
||
|
|
|
||
|
|
inline JobStatus_t CJob::TryExecute()
|
||
|
|
{
|
||
|
|
tmZone( TELEMETRY_LEVEL0, TMZF_NONE, "%s %s %d", __FUNCTION__, Describe(), m_status );
|
||
|
|
|
||
|
|
// TryLock() would only fail if another thread has entered
|
||
|
|
// Execute() or Abort()
|
||
|
|
if ( !IsFinished() && TryLock() )
|
||
|
|
{
|
||
|
|
// ...service the request
|
||
|
|
Execute();
|
||
|
|
Unlock();
|
||
|
|
}
|
||
|
|
return m_status;
|
||
|
|
}
|
||
|
|
|
||
|
|
//---------------------------------------------------------
|
||
|
|
|
||
|
|
inline JobStatus_t CJob::Abort( bool bDiscard )
|
||
|
|
{
|
||
|
|
if ( IsFinished() )
|
||
|
|
{
|
||
|
|
return m_status;
|
||
|
|
}
|
||
|
|
|
||
|
|
tmZone( TELEMETRY_LEVEL0, TMZF_NONE, "%s %s %d", __FUNCTION__, Describe(), m_status );
|
||
|
|
|
||
|
|
AUTO_LOCK( m_mutex );
|
||
|
|
AddRef();
|
||
|
|
|
||
|
|
JobStatus_t result;
|
||
|
|
|
||
|
|
switch ( m_status )
|
||
|
|
{
|
||
|
|
case JOB_STATUS_UNSERVICED:
|
||
|
|
case JOB_STATUS_PENDING:
|
||
|
|
{
|
||
|
|
tmZone( TELEMETRY_LEVEL0, TMZF_NONE, "CJob::DoAbort" );
|
||
|
|
|
||
|
|
result = m_status = DoAbort( bDiscard );
|
||
|
|
if ( bDiscard )
|
||
|
|
DoCleanup();
|
||
|
|
m_CompleteEvent.Set();
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case JOB_STATUS_ABORTED:
|
||
|
|
case JOB_STATUS_INPROGRESS:
|
||
|
|
case JOB_OK:
|
||
|
|
result = m_status;
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
AssertMsg( m_status < JOB_OK, "Unknown job state");
|
||
|
|
result = m_status;
|
||
|
|
}
|
||
|
|
|
||
|
|
Release();
|
||
|
|
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
#endif // JOBTHREAD_H
|