1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
/* ****************************************************************************
* eID Middleware Project.
* Copyright (C) 2008-2009 FedICT.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version
* 3.0 as published by the Free Software Foundation.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, see
* http://www.gnu.org/licenses/.
**************************************************************************** */
#include "ThreadPool.h"
using namespace eIDMW;
static bool g_bStop = true;
#define MAX_THREAD_WAIT_LOOP 100
CEventCallbackThread::CEventCallbackThread()
{
}
CEventCallbackThread::CEventCallbackThread(
CPCSC *poPCSC, const std::string & csReader,
void (* callback)(long lRet, unsigned long ulState, void *pvRef), void *pvRef)
{
m_bStop = false;
m_bRunning = false;
m_poPCSC = poPCSC;
m_csReader = csReader;
m_callback = callback;
m_ulCurrentState = 0;
m_pvRef = pvRef;
}
void CEventCallbackThread::Run()
{
m_bRunning = true;
long lRet = EIDMW_OK;
tReaderInfo tInfo = {m_csReader, m_ulCurrentState, 0};
try
{
while (!g_bStop && ! m_bStop)
{
bool bChanged = m_poPCSC->GetStatusChange(10, &tInfo, 1);
if (g_bStop || m_bStop)
break;
else if (bChanged)
m_callback(lRet, tInfo.ulEventState, m_pvRef);
else
{
for (int i = 0; i < 5 && !g_bStop && ! m_bStop; i++)
CThread::SleepMillisecs(MAX_THREAD_WAIT_LOOP);
}
if (g_bStop || m_bStop)
break;
}
}
catch(const CMWException & e)
{
lRet = e.GetError();
}
catch (...)
{
lRet = EIDMW_ERR_UNKNOWN;
}
m_bRunning = false;
}
void CEventCallbackThread::Stop()
{
m_bStop = true;
}
bool CEventCallbackThread::HasStopped()
{
return !m_bRunning;
}
////////////////////////////////////////////////////////////////
CThreadPool::CThreadPool()
{
m_ulCurrentHandle = 0;
g_bStop = false;
}
CThreadPool::~CThreadPool()
{
g_bStop = true;
}
CEventCallbackThread & CThreadPool::NewThread(
CPCSC *poPCSC, const std::string & csReader,
void (* callback)(long lRet, unsigned long ulState, void *pvRef),
unsigned long & ulHandle, void *pvRef)
{
CAutoMutex oAutoMutex(&m_mutex);
m_ulCurrentHandle++;
m_pool[m_ulCurrentHandle] = CEventCallbackThread(
poPCSC, csReader, callback, pvRef);
ulHandle = m_ulCurrentHandle;
return m_pool[m_ulCurrentHandle];
}
void CThreadPool::RemoveThread(unsigned long ulHandle)
{
CAutoMutex oAutoMutex(&m_mutex);
// Signal the EventCallbackThread to stop
CEventCallbackThread & oEventCallbackThread = m_pool[ulHandle];
oEventCallbackThread.Stop();
/* Remove all EventCallbackThreads that have stopped,
* this may not yet be the one that we just signalled
* to stop that's no problem; we'll remove it in one
* of the next calls to this function. */
std::map <unsigned long, CEventCallbackThread>::iterator it;
bool bChanged = true;
while (bChanged && m_pool.size() > 0)
{
bChanged = false;
for (it = m_pool.begin(); it != m_pool.end(); it++)
{
if (it->second.HasStopped())
{
m_pool.erase(it);
bChanged = true;
break;
}
}
}
}
void CThreadPool::FinishThreads()
{
CAutoMutex oAutoMutex(&m_mutex);
if (m_pool.size() == 0)
return;
// First signal all threads to stop
std::map <unsigned long, CEventCallbackThread>::iterator it;
for (it = m_pool.begin(); it != m_pool.end(); it++)
it->second.Stop();
// Next wait until all threads have stopped.
// Since the threads should stop in MAX_THREAD_WAIT_LOOP msec,
// we only wait that long (in fact, we wait a little bit longer,
// just to make sure..
for (int i = 0; i < 12; i++)
{
bool bChanged = true;
while (bChanged && m_pool.size() > 0)
{
bChanged = false;
for (it = m_pool.begin(); it != m_pool.end(); it++)
{
if (it->second.HasStopped())
{
m_pool.erase(it);
bChanged = true;
break;
}
}
}
if (m_pool.size() == 0)
break;
else
CThread::SleepMillisecs(MAX_THREAD_WAIT_LOOP / 10);
}
m_mutex.Lock();
}
|
