LeafOK_CVS/innwebd/thread_pool.cpp

/*******************************************************/
/*                                                     */
/*  LeafOK Innbbsd                                     */
/*  Copyright (C) LeafOK.com, 2003-2004                */
/*                                                     */
/*  Programmed by Leaf                                 */
/*  E-mail:leaflet@leafok.com  QQ:6049044              */
/*                                                     */
/*  http://bbs.leafok.com                              */
/*  http://bbs.leafok.net                              */
/*  http://bbs.fenglin.info                            */
/*                                                     */
/*******************************************************/

#include "StdAfx.h"
#include ".\thread_pool.h"

thread_pool::thread_pool(UINT uThreadMax)
{
        UINT i;

        this->uLastErrorCode = E_NOERROR;
        this->uThreadCount = 0;
        this->uThreadMax = uThreadMax;
        this->ulThreadKillerId = 0;

        if (this->uThreadMax > TS_MAX_THREAD)
        {
                this->uThreadMax = 0;
                this->uLastErrorCode = E_MAX_THREAD_EXCEEDED;
        }

        for (i=0; i < this->uThreadMax; i++)
        {
                this->ulThreadIdList[i] = 0;
                this->uThreadStatusList[i] = S_UNUSED;
                this->time_status_set[i] = clock();
        }

        this->SetLock(false);

        this->EnableKillDeadThread();
}

thread_pool::~thread_pool(void)
{
        this->DisableKillDeadThread();
        this->KillAllThread();
}

int thread_pool::AddThread(ULONG ulThreadId, clock_t thread_timeout)
{
        UINT i;

        if (this->uThreadCount >= this->uThreadMax)
        {
                this->uLastErrorCode = E_MAX_THREAD_EXCEEDED;
                return E_MAX_THREAD_EXCEEDED;
        }

        if (thread_timeout < 0)
        {
                this->uLastErrorCode = E_INVALID_TIMEOUT;
                return E_INVALID_TIMEOUT;
        }

        if (this->SetLock(true) == 0)
        {
                for (i=0; i < this->uThreadMax; i++)
                {
                        if (this->uThreadStatusList[i] == S_UNUSED)
                        {
                                this->ulThreadIdList[i] = ulThreadId;
                                this->uThreadStatusList[i] = S_WAITING;
                                this->thread_timeout[i] = thread_timeout;
                                this->time_status_set[i] = clock();
                                this->uThreadCount++;
                                this->SetLock(false);
                                this->uLastErrorCode = E_NOERROR;
                                return E_NOERROR;
                        }
                }
                this->SetLock(false);
                this->uLastErrorCode = E_MAX_THREAD_EXCEEDED;
                return E_MAX_THREAD_EXCEEDED;
        }

        return E_LOCK_TIMEOUT;
}

int thread_pool::SetLock(bool bLock, clock_t tTimeout)
{
        clock_t wait = 0;
    
        if (!bLock) // Free lock
        {
                this->bProcessLock = false;
                this->uLastErrorCode = E_NOERROR;
                return E_NOERROR;
        }

        while (this->bProcessLock) // Locked by others
        {
                Sleep(10);
                wait += 10;
                if (wait > tTimeout) // Timeout
                {
                        this->uLastErrorCode = E_LOCK_TIMEOUT;
                        return E_LOCK_TIMEOUT;
                }
        }
        this->bProcessLock = true;
        this->uLastErrorCode = E_NOERROR;

        return E_NOERROR;
}

int thread_pool::GetLastError(void) const
{
        return this->uLastErrorCode;
}

int thread_pool::RemoveThread(ULONG ulThreadId)
{
        UINT i;

        if (this->uThreadCount <= 0)
        {
                this->uLastErrorCode = E_THREAD_NOT_FOUND;
                return E_THREAD_NOT_FOUND;
        }

        if (this->SetLock(true) == 0)
        {
                for (i=0; i < this->uThreadMax; i++)
                {
                        if (this->ulThreadIdList[i] == ulThreadId)
                        {
                                this->ulThreadIdList[i] = 0;
                                this->uThreadStatusList[i] = S_UNUSED;
                                this->uThreadCount--;
                                this->SetLock(false);
                                this->uLastErrorCode = E_NOERROR;
                                return E_NOERROR;
                        }
                }
                this->SetLock(false);
                this->uLastErrorCode = E_THREAD_NOT_FOUND;
                return E_THREAD_NOT_FOUND;
        }

        return E_LOCK_TIMEOUT;
}


int thread_pool::SetThreadStatus(ULONG ulThreadId, int uStatus)
{
        UINT i;

        if (this->uThreadCount <= 0)
        {
                this->uLastErrorCode = E_THREAD_NOT_FOUND;
                return E_THREAD_NOT_FOUND;
        }

        for (i=0; i < this->uThreadMax; i++)
        {
                if (this->ulThreadIdList[i] == ulThreadId)
                {
                        this->uThreadStatusList[i] = (thread_status)uStatus;
                        this->time_status_set[i] = clock();
                        this->uLastErrorCode = E_NOERROR;
                        return this->uLastErrorCode;
                }
        }

        this->uLastErrorCode = E_THREAD_NOT_FOUND;
        return E_THREAD_NOT_FOUND;
}

int thread_pool::GetThreadStatus(ULONG ulThreadId)
{
        UINT i;

        if (this->uThreadCount <= 0)
        {
                this->uLastErrorCode = E_THREAD_NOT_FOUND;
                return S_UNKNOWN;
        }

        for (i=0; i < this->uThreadMax; i++)
        {
                if (this->ulThreadIdList[i] == ulThreadId)
                {
                        this->uLastErrorCode = E_NOERROR;
                        return this->uThreadStatusList[i];
                }
        }

        this->uLastErrorCode = E_THREAD_NOT_FOUND;
        return S_UNKNOWN;
}

DWORD thread_pool::KillDeadThread(LPVOID pParam)
{
        thread_pool *p;
    UINT i;
        HANDLE hThread;
        ULONG ulThreadId;
        int t_count = 0;

        p = (thread_pool*)pParam;

        p->ulThreadKillerId = GetCurrentThreadId();

        while(!p->bTerminateThreadKiller)
        {
                if (t_count>=100)
                {
                        t_count=0;

                        for (i=0; i < p->uThreadMax; i++)
                        {
                                if ((p->ulThreadIdList[i] != 0) &&
                                        (p->uThreadStatusList[i] == S_WORKING) && 
                                        (clock() - p->time_status_set[i] > p->thread_timeout[i]))
                                {
                                        ulThreadId = p->ulThreadIdList[i];
                                        // Remove dead thread from thread pool
                                        if (p->RemoveThread(ulThreadId) != 0)
                                        {
                                                syslog << logfile::log_head << "Unregister thread ... Failed" << endl;
                                        }
                                        // Kill dead thread
                                        if ((hThread = OpenThread(THREAD_TERMINATE,FALSE,ulThreadId)) == NULL)
                                        {
                                                syslog << logfile::log_head << "Get thread handle error in KillDeadThread()" << endl;
                                        }
                                        else
                                        {
                                                if (TerminateThread(hThread,-1))
                                                {
                                                        syslog << logfile::log_head << "Terminate dead thread ... OK" << endl;
                                                }
                                                else
                                                {
                                                        syslog << logfile::log_head << "Terminate dead thread ... Failed" << endl;
                                                }
                                                CloseHandle(hThread);
                                        }
                                }
                        }
                }

                Sleep(100);
                t_count++;
        }

        p->bTerminateThreadKiller = false;
        p->ulThreadKillerId = 0;

        return (E_NOERROR);
}

int thread_pool::GetThreadCount(void) const
{
        return this->uThreadCount;
}

int thread_pool::EnableKillDeadThread(void)
{
        HANDLE hThreadCurrent;
        ULONG ulThreadId;

        this->bTerminateThreadKiller = false;
        if (hThreadCurrent = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)thread_pool::KillDeadThread,(LPVOID)this,0,&ulThreadId))
        {
                CloseHandle(hThreadCurrent);
                syslog << logfile::log_head << "Create killer thread ... OK" << endl;
        }
        else
        {
                syslog << logfile::log_head << "Create killer thread ... Failed" << endl;
                this->uLastErrorCode = E_KILLER_BEGIN_FAILED;
                return E_KILLER_BEGIN_FAILED;
        }

        this->uLastErrorCode = E_NOERROR;
        return E_NOERROR;
}

int thread_pool::DisableKillDeadThread(void)
{
        HANDLE hThread;

        if (this->ulThreadKillerId == 0)
        {
                this->uLastErrorCode = E_KILLER_END_FAILED;
                return E_KILLER_END_FAILED;
        }

        this->bTerminateThreadKiller = true;

        Sleep(1000);

        if (!this->bTerminateThreadKiller)
        {
                syslog << logfile::log_head << "Terminate killer thread ... OK" << endl;
        }
        else
        {
                if ((hThread = OpenThread(THREAD_TERMINATE,FALSE,this->ulThreadKillerId)) == NULL)
                {
                        syslog << logfile::log_head << "Get thread handle error in DisableKillDeadThread()" << endl;
                        this->uLastErrorCode = E_INVALID_THREAD;
                        return E_INVALID_THREAD;
                }
                if (this->SetLock(true) == 0)
                {
                        if (TerminateThread(hThread,0))
                        {
                                CloseHandle(hThread);
                                this->ulThreadKillerId = 0;
                                this->SetLock(false);
                                syslog << logfile::log_head << "Terminate killer thread ... OK" << endl;
                                this->uLastErrorCode = E_NOERROR;
                                return E_NOERROR;
                        }
                }
                CloseHandle(hThread);
                this->SetLock(false);
                syslog << logfile::log_head << "Terminate killer thread ... Failed" << endl;
                this->uLastErrorCode = E_KILLER_END_FAILED;
                return E_KILLER_END_FAILED;
        }

        this->uLastErrorCode = E_NOERROR;
        return E_NOERROR;
}

int thread_pool::KillAllThread(void)
{
        UINT i;
        ULONG ulThreadId;
        HANDLE hThread;

        for (i=0; i < this->uThreadMax; i++)
        {
                if ((this->ulThreadIdList[i] != 0))
                {
                        ulThreadId = this->ulThreadIdList[i];
                        // Remove dead thread from thread pool
                        if (this->RemoveThread(ulThreadId) != 0)
                        {
                                syslog << logfile::log_head << "Unregister thread ... Failed" << endl;
                        }
                        // Kill dead thread
                        if ((hThread = OpenThread(THREAD_TERMINATE,FALSE,ulThreadId)) == NULL)
                        {
                                syslog << logfile::log_head << "Get thread handle error in KillAllThread()" << endl;
                        }
                        else
                        {
                                if (TerminateThread(hThread,-1))
                                {
                                        syslog << logfile::log_head << "Terminate all thread ... OK" << endl;
                                }
                                else
                                {
                                        syslog << logfile::log_head << "Terminate all thread ... Failed" << endl;
                                }
                                CloseHandle(hThread);
                        }
                }
        }

        this->uLastErrorCode = E_NOERROR;
        return E_NOERROR;
}
1	/*******************************************************/
2	/* */
3	/* LeafOK Innbbsd */
4	/* Copyright (C) LeafOK.com, 2003-2004 */
5	/* */
6	/* Programmed by Leaf */
7	/* E-mail:leaflet@leafok.com QQ:6049044 */
8	/* */
9	/* http://bbs.leafok.com */
10	/* http://bbs.leafok.net */
11	/* http://bbs.fenglin.info */
12	/* */
13	/*******************************************************/
14
15	#include "StdAfx.h"
16	#include ".\thread_pool.h"
17
18	thread_pool::thread_pool(UINT uThreadMax)
19	{
20	UINT i;
21
22	this->uLastErrorCode = E_NOERROR;
23	this->uThreadCount = 0;
24	this->uThreadMax = uThreadMax;
25	this->ulThreadKillerId = 0;
26
27	if (this->uThreadMax > TS_MAX_THREAD)
28	{
29	this->uThreadMax = 0;
30	this->uLastErrorCode = E_MAX_THREAD_EXCEEDED;
31	}
32
33	for (i=0; i < this->uThreadMax; i++)
34	{
35	this->ulThreadIdList[i] = 0;
36	this->uThreadStatusList[i] = S_UNUSED;
37	this->time_status_set[i] = clock();
38	}
39
40	this->SetLock(false);
41
42	this->EnableKillDeadThread();
43	}
44
45	thread_pool::~thread_pool(void)
46	{
47	this->DisableKillDeadThread();
48	this->KillAllThread();
49	}
50
51	int thread_pool::AddThread(ULONG ulThreadId, clock_t thread_timeout)
52	{
53	UINT i;
54
55	if (this->uThreadCount >= this->uThreadMax)
56	{
57	this->uLastErrorCode = E_MAX_THREAD_EXCEEDED;
58	return E_MAX_THREAD_EXCEEDED;
59	}
60
61	if (thread_timeout < 0)
62	{
63	this->uLastErrorCode = E_INVALID_TIMEOUT;
64	return E_INVALID_TIMEOUT;
65	}
66
67	if (this->SetLock(true) == 0)
68	{
69	for (i=0; i < this->uThreadMax; i++)
70	{
71	if (this->uThreadStatusList[i] == S_UNUSED)
72	{
73	this->ulThreadIdList[i] = ulThreadId;
74	this->uThreadStatusList[i] = S_WAITING;
75	this->thread_timeout[i] = thread_timeout;
76	this->time_status_set[i] = clock();
77	this->uThreadCount++;
78	this->SetLock(false);
79	this->uLastErrorCode = E_NOERROR;
80	return E_NOERROR;
81	}
82	}
83	this->SetLock(false);
84	this->uLastErrorCode = E_MAX_THREAD_EXCEEDED;
85	return E_MAX_THREAD_EXCEEDED;
86	}
87
88	return E_LOCK_TIMEOUT;
89	}
90
91	int thread_pool::SetLock(bool bLock, clock_t tTimeout)
92	{
93	clock_t wait = 0;
94
95	if (!bLock) // Free lock
96	{
97	this->bProcessLock = false;
98	this->uLastErrorCode = E_NOERROR;
99	return E_NOERROR;
100	}
101
102	while (this->bProcessLock) // Locked by others
103	{
104	Sleep(10);
105	wait += 10;
106	if (wait > tTimeout) // Timeout
107	{
108	this->uLastErrorCode = E_LOCK_TIMEOUT;
109	return E_LOCK_TIMEOUT;
110	}
111	}
112	this->bProcessLock = true;
113	this->uLastErrorCode = E_NOERROR;
114
115	return E_NOERROR;
116	}
117
118	int thread_pool::GetLastError(void) const
119	{
120	return this->uLastErrorCode;
121	}
122
123	int thread_pool::RemoveThread(ULONG ulThreadId)
124	{
125	UINT i;
126
127	if (this->uThreadCount <= 0)
128	{
129	this->uLastErrorCode = E_THREAD_NOT_FOUND;
130	return E_THREAD_NOT_FOUND;
131	}
132
133	if (this->SetLock(true) == 0)
134	{
135	for (i=0; i < this->uThreadMax; i++)
136	{
137	if (this->ulThreadIdList[i] == ulThreadId)
138	{
139	this->ulThreadIdList[i] = 0;
140	this->uThreadStatusList[i] = S_UNUSED;
141	this->uThreadCount--;
142	this->SetLock(false);
143	this->uLastErrorCode = E_NOERROR;
144	return E_NOERROR;
145	}
146	}
147	this->SetLock(false);
148	this->uLastErrorCode = E_THREAD_NOT_FOUND;
149	return E_THREAD_NOT_FOUND;
150	}
151
152	return E_LOCK_TIMEOUT;
153	}
154
155
156	int thread_pool::SetThreadStatus(ULONG ulThreadId, int uStatus)
157	{
158	UINT i;
159
160	if (this->uThreadCount <= 0)
161	{
162	this->uLastErrorCode = E_THREAD_NOT_FOUND;
163	return E_THREAD_NOT_FOUND;
164	}
165
166	for (i=0; i < this->uThreadMax; i++)
167	{
168	if (this->ulThreadIdList[i] == ulThreadId)
169	{
170	this->uThreadStatusList[i] = (thread_status)uStatus;
171	this->time_status_set[i] = clock();
172	this->uLastErrorCode = E_NOERROR;
173	return this->uLastErrorCode;
174	}
175	}
176
177	this->uLastErrorCode = E_THREAD_NOT_FOUND;
178	return E_THREAD_NOT_FOUND;
179	}
180
181	int thread_pool::GetThreadStatus(ULONG ulThreadId)
182	{
183	UINT i;
184
185	if (this->uThreadCount <= 0)
186	{
187	this->uLastErrorCode = E_THREAD_NOT_FOUND;
188	return S_UNKNOWN;
189	}
190
191	for (i=0; i < this->uThreadMax; i++)
192	{
193	if (this->ulThreadIdList[i] == ulThreadId)
194	{
195	this->uLastErrorCode = E_NOERROR;
196	return this->uThreadStatusList[i];
197	}
198	}
199
200	this->uLastErrorCode = E_THREAD_NOT_FOUND;
201	return S_UNKNOWN;
202	}
203
204	DWORD thread_pool::KillDeadThread(LPVOID pParam)
205	{
206	thread_pool *p;
207	UINT i;
208	HANDLE hThread;
209	ULONG ulThreadId;
210	int t_count = 0;
211
212	p = (thread_pool*)pParam;
213
214	p->ulThreadKillerId = GetCurrentThreadId();
215
216	while(!p->bTerminateThreadKiller)
217	{
218	if (t_count>=100)
219	{
220	t_count=0;
221
222	for (i=0; i < p->uThreadMax; i++)
223	{
224	if ((p->ulThreadIdList[i] != 0) &&
225	(p->uThreadStatusList[i] == S_WORKING) &&
226	(clock() - p->time_status_set[i] > p->thread_timeout[i]))
227	{
228	ulThreadId = p->ulThreadIdList[i];
229	// Remove dead thread from thread pool
230	if (p->RemoveThread(ulThreadId) != 0)
231	{
232	syslog << logfile::log_head << "Unregister thread ... Failed" << endl;
233	}
234	// Kill dead thread
235	if ((hThread = OpenThread(THREAD_TERMINATE,FALSE,ulThreadId)) == NULL)
236	{
237	syslog << logfile::log_head << "Get thread handle error in KillDeadThread()" << endl;
238	}
239	else
240	{
241	if (TerminateThread(hThread,-1))
242	{
243	syslog << logfile::log_head << "Terminate dead thread ... OK" << endl;
244	}
245	else
246	{
247	syslog << logfile::log_head << "Terminate dead thread ... Failed" << endl;
248	}
249	CloseHandle(hThread);
250	}
251	}
252	}
253	}
254
255	Sleep(100);
256	t_count++;
257	}
258
259	p->bTerminateThreadKiller = false;
260	p->ulThreadKillerId = 0;
261
262	return (E_NOERROR);
263	}
264
265	int thread_pool::GetThreadCount(void) const
266	{
267	return this->uThreadCount;
268	}
269
270	int thread_pool::EnableKillDeadThread(void)
271	{
272	HANDLE hThreadCurrent;
273	ULONG ulThreadId;
274
275	this->bTerminateThreadKiller = false;
276	if (hThreadCurrent = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)thread_pool::KillDeadThread,(LPVOID)this,0,&ulThreadId))
277	{
278	CloseHandle(hThreadCurrent);
279	syslog << logfile::log_head << "Create killer thread ... OK" << endl;
280	}
281	else
282	{
283	syslog << logfile::log_head << "Create killer thread ... Failed" << endl;
284	this->uLastErrorCode = E_KILLER_BEGIN_FAILED;
285	return E_KILLER_BEGIN_FAILED;
286	}
287
288	this->uLastErrorCode = E_NOERROR;
289	return E_NOERROR;
290	}
291
292	int thread_pool::DisableKillDeadThread(void)
293	{
294	HANDLE hThread;
295
296	if (this->ulThreadKillerId == 0)
297	{
298	this->uLastErrorCode = E_KILLER_END_FAILED;
299	return E_KILLER_END_FAILED;
300	}
301
302	this->bTerminateThreadKiller = true;
303
304	Sleep(1000);
305
306	if (!this->bTerminateThreadKiller)
307	{
308	syslog << logfile::log_head << "Terminate killer thread ... OK" << endl;
309	}
310	else
311	{
312	if ((hThread = OpenThread(THREAD_TERMINATE,FALSE,this->ulThreadKillerId)) == NULL)
313	{
314	syslog << logfile::log_head << "Get thread handle error in DisableKillDeadThread()" << endl;
315	this->uLastErrorCode = E_INVALID_THREAD;
316	return E_INVALID_THREAD;
317	}
318	if (this->SetLock(true) == 0)
319	{
320	if (TerminateThread(hThread,0))
321	{
322	CloseHandle(hThread);
323	this->ulThreadKillerId = 0;
324	this->SetLock(false);
325	syslog << logfile::log_head << "Terminate killer thread ... OK" << endl;
326	this->uLastErrorCode = E_NOERROR;
327	return E_NOERROR;
328	}
329	}
330	CloseHandle(hThread);
331	this->SetLock(false);
332	syslog << logfile::log_head << "Terminate killer thread ... Failed" << endl;
333	this->uLastErrorCode = E_KILLER_END_FAILED;
334	return E_KILLER_END_FAILED;
335	}
336
337	this->uLastErrorCode = E_NOERROR;
338	return E_NOERROR;
339	}
340
341	int thread_pool::KillAllThread(void)
342	{
343	UINT i;
344	ULONG ulThreadId;
345	HANDLE hThread;
346
347	for (i=0; i < this->uThreadMax; i++)
348	{
349	if ((this->ulThreadIdList[i] != 0))
350	{
351	ulThreadId = this->ulThreadIdList[i];
352	// Remove dead thread from thread pool
353	if (this->RemoveThread(ulThreadId) != 0)
354	{
355	syslog << logfile::log_head << "Unregister thread ... Failed" << endl;
356	}
357	// Kill dead thread
358	if ((hThread = OpenThread(THREAD_TERMINATE,FALSE,ulThreadId)) == NULL)
359	{
360	syslog << logfile::log_head << "Get thread handle error in KillAllThread()" << endl;
361	}
362	else
363	{
364	if (TerminateThread(hThread,-1))
365	{
366	syslog << logfile::log_head << "Terminate all thread ... OK" << endl;
367	}
368	else
369	{
370	syslog << logfile::log_head << "Terminate all thread ... Failed" << endl;
371	}
372	CloseHandle(hThread);
373	}
374	}
375	}
376
377	this->uLastErrorCode = E_NOERROR;
378	return E_NOERROR;
379	}
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