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
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _THREADMANAGER_HXX
#define _THREADMANAGER_HXX
#include <ithreadlistenerowner.hxx>
#include <vcl/timer.hxx>
#include <osl/mutex.hxx>
#include <osl/interlck.h>
#include <rtl/ref.hxx>
#include <deque>
#include <list>
#include <cppuhelper/weak.hxx>
#include "com/sun/star/util/XJobManager.hpp"
#include <observablethread.hxx>
#include <cancellablejob.hxx>
#include <threadlistener.hxx>
#include <boost/shared_ptr.hpp>
#include <boost/weak_ptr.hpp>
/** class to manage threads
OD 2007-01-29 #i73788#
An instance of this class takes care of the starting of threads.
It assures that not more than <mnStartedSize> threads
are started.
@author OD
*/
class ThreadManager : public IThreadListenerOwner
{
public:
explicit ThreadManager( ::com::sun::star::uno::Reference< ::com::sun::star::util::XJobManager >& rThreadJoiner );
~ThreadManager();
// --> IThreadListenerOwner
virtual boost::weak_ptr< IFinishedThreadListener > GetThreadListenerWeakRef();
virtual void NotifyAboutFinishedThread( const oslInterlockedCount nThreadID );
/** initialization
IMPORTANT NOTE: Needs to be called directly after construction
@author OD
*/
void Init();
/** add thread to the thread manager and taking ownership for the thread
@author OD
@return unique ID for added thread
*/
oslInterlockedCount AddThread(
const ::rtl::Reference< ObservableThread >& rThread );
void RemoveThread( const oslInterlockedCount nThreadID,
const bool bThreadFinished = false );
DECL_LINK( TryToStartNewThread, Timer* );
/** suspend the starting of threads
Suspending the starting of further threads is sensible during the
destruction of a Writer document.
@author OD
*/
inline void SuspendStartingOfThreads()
{
osl::MutexGuard aGuard(maMutex);
mbStartingOfThreadsSuspended = true;
}
/** continues the starting of threads after it has been suspended
@author OD
*/
void ResumeStartingOfThreads();
inline bool StartingOfThreadsSuspended()
{
osl::MutexGuard aGuard(maMutex);
return mbStartingOfThreadsSuspended;
}
struct tThreadData
{
oslInterlockedCount nThreadID;
::rtl::Reference< ObservableThread > pThread;
com::sun::star::uno::Reference< com::sun::star::util::XCancellable > aJob;
tThreadData()
: nThreadID( 0 ),
pThread( 0 ),
aJob()
{}
};
private:
static const std::deque< tThreadData >::size_type mnStartedSize;
osl::Mutex maMutex;
::com::sun::star::uno::WeakReference< ::com::sun::star::util::XJobManager > mrThreadJoiner;
boost::shared_ptr< ThreadListener > mpThreadListener;
oslInterlockedCount mnThreadIDCounter;
std::deque< tThreadData > maWaitingForStartThreads;
std::deque< tThreadData > maStartedThreads;
Timer maStartNewThreadTimer;
bool mbStartingOfThreadsSuspended;
struct ThreadPred
{
oslInterlockedCount mnThreadID;
explicit ThreadPred( oslInterlockedCount nThreadID )
: mnThreadID( nThreadID )
{}
bool operator() ( const tThreadData& rThreadData ) const
{
return rThreadData.nThreadID == mnThreadID;
}
};
inline oslInterlockedCount RetrieveNewThreadID()
{
return osl_incrementInterlockedCount( &mnThreadIDCounter );
}
bool StartWaitingThread();
bool StartThread( const tThreadData& aThreadData );
};
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
