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p);<BR> static DWORD WINAPI WorkerProc(void*=20
p);<BR>protected:<BR> //manager thread<BR> HANDLE=20
m_hMgrThread;<BR> HANDLE=20
m_hMgrIoPort;<BR>protected:<BR> //configuration=20
parameters<BR> mutable unsigned short=20
m_nNumberOfStaticThreads;<BR> mutable unsigned short=20
m_nNumberOfTotalThreads;</P>
<P>protected:<BR> //helper functions<BR> void=20
AddThreads();<BR> void=20
RemoveThreads();<BR> ThreadPoolStatus=20
GetThreadPoolStatus();<BR> void ChangeStatus(DWORD =
threadId,=20
bool status);<BR> void RemoveThread(DWORD =
threadId);</P>
<P>protected:<BR> //all the work =
threads<BR> ThreadInfoMap=20
m_threadMap;<BR> CCriticalSection =
m_arrayCs;<BR> HANDLE=20
m_hWorkerIoPort;<BR>};</P>
<P>#endif //=20
=
!defined(AFX_THREADPOOLIMP_H__82F4FC7E_2DB4_4D2A_ACC8_2EFC787CAE42__INCLU=
DED_)<BR><BR><BR>=CA=B5=CF=D6=C8=E7=CF=C2<BR><BR><BR>//=20
ThreadPool.cpp: implementation of the CThreadPoolImp=20
=
class.<BR>//<BR>/////////////////////////////////////////////////////////=
/////////////</P>
<P>#include "stdafx.h"<BR>#include =
"ThreadPoolimp.h"<BR>#include=20
"outdebug.h"<BR>#include <assert.h><BR>#include =
"work.h"</P>
<P>#ifdef _DEBUG<BR>#undef THIS_FILE<BR>static char=20
THIS_FILE[]=3D__FILE__;<BR>//#define new =
DEBUG_NEW<BR>#endif</P>
<P>CThreadPoolImp::CThreadPoolImp()<BR>{<BR>}</P>
<P>CThreadPoolImp::~CThreadPoolImp()<BR>{</P>
<P>}</P>
<P>void CThreadPoolImp::Start(unsigned short nStatic, =
unsigned short=20
=
nMax)<BR>{<BR> assert(nMax>=3DnStatic);<BR> HANDLE =20
=
hThread;<BR> DWORD nThreadId;<BR> m_nNumberOfStaticThreads=
=3DnStatic;<BR> m_nNumberOfTotalThreads=3DnMax;</P>
<P> //lock the resource<BR> CAutoLock=20
AutoLock(m_arrayCs);</P>
<P> //create an IO port<BR> m_hMgrIoPort =3D=20
CreateIoCompletionPort((HANDLE)INVALID_HANDLE_VALUE, NULL, =
0,=20
0);<BR> hThread =3D=20
CreateThread(<BR> =
NULL, //=20
SD<BR> =20
=
0,  =
; =20
// initial stack =
size<BR> =20
(LPTHREAD_START_ROUTINE)ManagerProc, // =
thread=20
function<BR> =20
=
(LPVOID)this, =
=
// thread =
argument<BR> =20
=
0,  =
; =20
// creation =
option<BR> =20
&nThreadId=20
=
);  =
; =20
// thread identifier<BR> m_hMgrThread =3D hThread;</P>
<P> //now we start these worker=20
threads<BR> m_hWorkerIoPort =3D=20
CreateIoCompletionPort((HANDLE)INVALID_HANDLE_VALUE, NULL, =
0,=20
0);<BR> for(long n =3D 0; n < nStatic;=20
n++)<BR> {<BR> hThread =3D=20
CreateThread(<BR> =
NULL, //=20
SD<BR> =20
=
0,  =
; =20
// initial stack =
size<BR> =20
(LPTHREAD_START_ROUTINE)WorkerProc, // =
thread=20
function<BR> =20
=
(LPVOID)this, =
=
// thread =
argument<BR> =20
=
0,  =
; =20
// creation =
option<BR> =20
&nThreadId ); =20
<BR> ReportDebug("generate a worker thread handle =
id is=20
%d.\n",=20
=
nThreadId);<BR> m_threadMap.insert(m_threadMap.end(),ThreadInf=
oMap::value_type(nThreadId,ThreadInfo(hThread,=20
false)));<BR> }<BR>}</P>
<P>void CThreadPoolImp::Stop(bool =
bHash)<BR>{<BR> CAutoLock=20
Lock(m_arrayCs);</P>
<P> ::PostQueuedCompletionStatus(m_hMgrIoPort, 0, 0,=20
=
(OVERLAPPED*)0xFFFFFFFF);<BR> WaitForSingleObject(m_hMgrThread,=20
=
INFINITE);<BR> CloseHandle(m_hMgrThread);<BR> CloseHandle(m_hMg=
rIoPort);</P>
<P> //shut down all the worker threads<BR> UINT=20
nCount=3Dm_threadMap.size();<BR> HANDLE* pThread =3D =
new=20
HANDLE[nCount];<BR> long n=3D0;<BR> ThreadInfo=20
info;<BR> Iterator_ThreadInfoMap=20
=
i=3Dm_threadMap.begin();<BR> while(i!=3Dm_threadMap.end())<BR> =
{<BR> ::PostQueuedCompletionStatus(m_hWorkerIoPort,=20
0, 0,=20
=
(OVERLAPPED*)0xFFFFFFFF);<BR> info=3Di->second;<BR> &n=
bsp;pThread[n++]=3Dinfo.m_hThread;<BR> i++;<BR> }</P>
<P> DWORD rc=3DWaitForMultipleObjects(nCount, pThread, =
TRUE,=20
30000);//wait for 0.5 minutes, then start to kill=20
=
threads<BR> CloseHandle(m_hWorkerIoPort);<BR> if(rc>=3DWAIT_=
OBJECT_0=20
&&=20
=
rc<WAIT_OBJECT_0+nCount)<BR> {<BR> for(unsigned=20
int=20
=
n=3D0;n<nCount;n++)<BR> {<BR> CloseHandle(=
pThread[n]);<BR> }<BR> }<BR> else=20
=
if(rc=3D=3DWAIT_TIMEOUT&&bHash)<BR> {<BR> //some =
threads not terminated, we have to stop =
them.<BR> DWORD=20
exitCode;<BR> for(unsigned int i=3D0; =
i<nCount;=20
i++)<BR> {<BR> if=20
(::GetExitCodeThread(pThread[i],=20
=
&exitCode)=3D=3DSTILL_ACTIVE)<BR> {<BR> &=
nbsp; TerminateThread(pThread[i],=20
=
99);<BR> }<BR> CloseHandle(pThread[i]);=
<BR> }<BR> }<BR> delete[]=20
pThread;<BR>}</P>
<P>DWORD WINAPI CThreadPoolImp::ManagerProc(void*=20
p)<BR>{<BR> //convert the parameter to the server=20
pointer.<BR> CThreadPoolImp*=20
=
pServer=3D(CThreadPoolImp*)p;<BR> HANDLE &nbs=
p; IoPort =3D=20
pServer->GetMgrIoPort();<BR> unsigned=20
long pN1, pN2;=20
=
<BR> OVERLAPPED* pOverLappe=
d;</P>
=
<P>LABEL_MANAGER_PROCESSING:<BR> while(::GetQueuedCompletionStatus(I=
oPort,=20
&pN1, &pN2, <BR> &pOverLapped,=20
pServer->GetMgrWaitTime()=20
))<BR> {<BR> if(pOverLapped =3D=3D=20
=
(OVERLAPPED*)0xFFFFFFFF)<BR> {<BR> return=20
0;<BR> }<BR>// else if(pOverLapped =
=3D=3D=20
=
(OVERLAPPED*)0xFFFFFFFE)<BR>// {<BR>// if(pN1=
!=3D0)<BR>// {<BR>// DWORD=20
=
rc=3D::WaitForSingleObject((HANDLE)pN1,INFINITE);<BR>// =
if(rc=3DWAIT_OBJECT_0)<BR>// {<BR>// &n=
bsp; CloseHandle((HANDLE)pN1);//=B9=D8=B1=D5=B8=C3=CF=DF=
=B3=CC=BE=E4=B1=FA<BR>// }<BR>// =
ReportDebug("Wait=20
a Thread=20
=
Removed!\n");<BR>// }<BR>// }<BR> =
else=20
<BR> {<BR> ReportDebug("mgr =
events comes=20
in!\n");<BR> }<BR> }</P>
<P> //time out processing<BR> if=20
=
(::GetLastError()=3D=3DWAIT_TIMEOUT)<BR> {<BR> //time=20
out processing<BR> ReportDebug("Time out=20
processing!\n");<BR> //the manager will take a =
look at=20
all the worker's status. The<BR> if=20
=
(pServer->GetThreadPoolStatus()=3D=3DCThreadPoolImp::BUSY)<BR> &n=
bsp; pServer->AddThreads();<BR> if=20
=
(pServer->GetThreadPoolStatus()=3D=3DCThreadPoolImp::IDLE)<BR> &n=
bsp; pServer->RemoveThreads();</P>
<P> goto=20
LABEL_MANAGER_PROCESSING;<BR> }<BR> return =
0;<BR>}</P>
<P>DWORD WINAPI CThreadPoolImp::WorkerProc(void*=20
p)<BR>{<BR> //convert the parameter to the server=20
pointer.<BR> CThreadPoolImp*=20
=
pServer=3D(CThreadPoolImp*)p;<BR> HANDLE &nbs=
p; IoPort =3D=20
pServer->GetWorkerIoPort();<BR> unsigned=20
long pN1, pN2;=20
=
<BR> OVERLAPPED* pOverLappe=
d;</P>
<P> DWORD=20
=
threadId=3D::GetCurrentThreadId();<BR> ReportDebug("worker thread=20
id is %d.\n", threadId);</P>
<P> while(::GetQueuedCompletionStatus(IoPort, &pN1, =
&pN2, <BR> &pOverLapped, INFINITE=20
))<BR> {<BR> if(pOverLapped =3D=3D=20
(OVERLAPPED*)0xFFFFFFFE)<BR> {</P>
=
<P>// CThreadPoolImp::Iterator_ThreadInfoMap=20
=
it=3DpServer->m_threadMap.find(threadId);<BR>// if(it=
!=3DpServer->m_threadMap.end())<BR>// {<BR>// &n=
bsp; ::PostQueuedCompletionStatus(pServer->m_hMgrIoPort,<BR=
>// (unsigned=20
=
long)it->second.m_hThread,<BR>// 0,=20
=
<BR>// (OVERLAPPED*)0xFFFFFFFE);<BR> &n=
bsp; pServer->RemoveThread(threadId);<BR>// &nbs=
p; ReportDebug("Try=20
to Remove a=20
=
Thread\n");<BR>// }<BR> break;<BR=
> }<BR> else=20
if(pOverLapped =3D=3D=20
=
(OVERLAPPED*)0xFFFFFFFF)<BR> {<BR> break;<BR>=
}<BR> else<BR> {<BR> R=
eportDebug("worker=20
events comes in!\n");<BR> //before =
processing, we=20
need to change the status to=20
=
busy.<BR> pServer->ChangeStatus(threadId,=20
true);<BR> //retrieve the job description =
and agent=20
pointer<BR> IWorker* pIWorker =3D=20
=
reinterpret_cast<IWorker*>(pN1);<BR> IJobDesc*=20
pIJob=3D=20
=
reinterpret_cast<IJobDesc*>(pN2);<BR> pIWorker->=
;ProcessJob(pIJob);<BR> pServer->ChangeStatus(threadI=
d,=20
false);<BR> }<BR> }<BR> return =
0;<BR>}</P>
<P>void CThreadPoolImp::ChangeStatus(DWORD threadId, bool=20
status)<BR>{<BR> CAutoLock CAutoLock(m_arrayCs);</P>
<P> //retrieve the current thread=20
handle<BR> Iterator_ThreadInfoMap =
i;<BR> ThreadInfo=20
=
info;<BR> i=3Dm_threadMap.find(threadId);<BR> info=3Di->seco=
nd;<BR>// m_threadMap.Lookup(threadId,=20
=
info);<BR> info.m_bBusyWorking=3Dstatus;<BR> m_threadMap.insert=
(m_threadMap.end(),ThreadInfoMap::value_type(threadId,=20
info));<BR>}</P>
<P>void CThreadPoolImp::ProcessJob(IJobDesc* pJob, IWorker* =
pWorker)=20
=
const<BR>{<BR> ::PostQueuedCompletionStatus(m_hWorkerIoPort,=20
\<BR> reinterpret_cast<DWORD>(pWorker),=20
=
\<BR> reinterpret_cast<DWORD>(pJob),\<BR> NUL=
L);<BR>}</P>
<P>void =
CThreadPoolImp::AddThreads()<BR>{<BR> HANDLE =20
hThread;<BR> DWORD nThreadId;<BR> unsigned =
int=20
nCount=3Dm_threadMap.size();<BR> unsigned int=20
nTotal=3Dmin(nCount+2, =
m_nNumberOfTotalThreads);<BR> for(unsigned=20
int i=3D0; i<nTotal-nCount; =
i++)<BR> {<BR> hThread=20
=3D =
CreateThread(<BR> NULL,=20
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