Line data Source code
1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include <sal/config.h>
21 :
22 : #include <cstdlib>
23 : #include <osl/diagnose.h>
24 : #include <uno/threadpool.h>
25 :
26 : #include "thread.hxx"
27 : #include "jobqueue.hxx"
28 : #include "threadpool.hxx"
29 :
30 : using namespace osl;
31 : using namespace rtl;
32 :
33 : namespace cppu_threadpool {
34 :
35 :
36 65 : ThreadAdmin::ThreadAdmin(): m_disposed(false) {}
37 :
38 65 : ThreadAdmin::~ThreadAdmin()
39 : {
40 : #if OSL_DEBUG_LEVEL > 1
41 : if( m_lst.size() )
42 : {
43 : fprintf( stderr, "%lu Threads left\n" , static_cast<unsigned long>(m_lst.size()) );
44 : }
45 : #endif
46 65 : }
47 :
48 907 : bool ThreadAdmin::add( rtl::Reference< ORequestThread > const & p )
49 : {
50 907 : MutexGuard aGuard( m_mutex );
51 907 : if( m_disposed )
52 : {
53 0 : return false;
54 : }
55 907 : m_lst.push_back( p );
56 907 : return true;
57 : }
58 :
59 907 : void ThreadAdmin::remove_locked( rtl::Reference< ORequestThread > const & p )
60 : {
61 907 : ::std::list< rtl::Reference< ORequestThread > >::iterator ii = ::std::find( m_lst.begin(), m_lst.end(), p );
62 907 : if( ii != m_lst.end() )
63 : {
64 841 : m_lst.erase( ii );
65 : }
66 907 : }
67 :
68 907 : void ThreadAdmin::remove( rtl::Reference< ORequestThread > const & p )
69 : {
70 907 : MutexGuard aGuard( m_mutex );
71 907 : remove_locked( p );
72 907 : }
73 :
74 65 : void ThreadAdmin::join()
75 : {
76 : {
77 65 : MutexGuard aGuard( m_mutex );
78 65 : m_disposed = true;
79 : }
80 : for (;;)
81 : {
82 131 : rtl::Reference< ORequestThread > pCurrent;
83 : {
84 131 : MutexGuard aGuard( m_mutex );
85 131 : if( m_lst.empty() )
86 : {
87 65 : break;
88 : }
89 66 : pCurrent = m_lst.front();
90 66 : m_lst.pop_front();
91 : }
92 66 : pCurrent->join();
93 66 : }
94 65 : }
95 :
96 :
97 907 : ORequestThread::ORequestThread( ThreadPoolHolder const &aThreadPool,
98 : JobQueue *pQueue,
99 : const ByteSequence &aThreadId,
100 : bool bAsynchron )
101 : : m_aThreadPool( aThreadPool )
102 : , m_pQueue( pQueue )
103 : , m_aThreadId( aThreadId )
104 907 : , m_bAsynchron( bAsynchron )
105 907 : {}
106 :
107 1814 : ORequestThread::~ORequestThread() {}
108 :
109 231082 : void ORequestThread::setTask( JobQueue *pQueue,
110 : const ByteSequence &aThreadId,
111 : bool bAsynchron )
112 : {
113 231082 : m_pQueue = pQueue;
114 231082 : m_aThreadId = aThreadId;
115 231082 : m_bAsynchron = bAsynchron;
116 231082 : }
117 :
118 907 : bool ORequestThread::launch()
119 : {
120 : // Assumption is that osl::Thread::create returns normally with a true
121 : // return value iff it causes osl::Thread::run to start executing:
122 907 : acquire();
123 907 : ThreadAdmin & rThreadAdmin = m_aThreadPool->getThreadAdmin();
124 907 : osl::ClearableMutexGuard g(rThreadAdmin.m_mutex);
125 907 : if (!rThreadAdmin.add( this )) {
126 0 : return false;
127 : }
128 : try {
129 907 : if (!create()) {
130 0 : std::abort();
131 : }
132 0 : } catch (...) {
133 0 : rThreadAdmin.remove_locked( this );
134 0 : g.clear();
135 0 : release();
136 0 : throw;
137 : }
138 907 : return true;
139 : }
140 :
141 906 : void ORequestThread::onTerminated()
142 : {
143 906 : m_aThreadPool->getThreadAdmin().remove( this );
144 907 : release();
145 907 : }
146 :
147 907 : void ORequestThread::run()
148 : {
149 907 : osl_setThreadName("cppu_threadpool::ORequestThread");
150 :
151 : try
152 : {
153 233800 : while ( m_pQueue )
154 : {
155 231987 : if( ! m_bAsynchron )
156 : {
157 200046 : if ( !uno_bindIdToCurrentThread( m_aThreadId.getHandle() ) )
158 : {
159 : OSL_ASSERT( false );
160 : }
161 : }
162 :
163 696145 : while( ! m_pQueue->isEmpty() )
164 : {
165 : // Note : Oneways should not get a disposable disposeid,
166 : // It does not make sense to dispose a call in this state.
167 : // That's way we put it an disposeid, that can't be used otherwise.
168 : m_pQueue->enter(
169 : sal::static_int_cast< sal_Int64 >(
170 : reinterpret_cast< sal_IntPtr >(this)),
171 232188 : true );
172 :
173 232201 : if( m_pQueue->isEmpty() )
174 : {
175 232121 : m_aThreadPool->revokeQueue( m_aThreadId , m_bAsynchron );
176 : // Note : revokeQueue might have failed because m_pQueue.isEmpty()
177 : // may be false (race).
178 : }
179 : }
180 :
181 231988 : delete m_pQueue;
182 231989 : m_pQueue = 0;
183 :
184 231989 : if( ! m_bAsynchron )
185 : {
186 200033 : uno_releaseIdFromCurrentThread();
187 : }
188 :
189 231989 : m_aThreadPool->waitInPool( this );
190 : }
191 : }
192 0 : catch (...)
193 : {
194 : // Work around the problem that onTerminated is not called if run
195 : // throws an exception:
196 0 : onTerminated();
197 0 : throw;
198 : }
199 907 : }
200 : }
201 :
202 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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