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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 <stdio.h>
21 : #include <osl/diagnose.h>
22 : #include <uno/threadpool.h>
23 :
24 : #include <com/sun/star/lang/DisposedException.hpp>
25 : #include <com/sun/star/uno/Reference.hxx>
26 : #include <com/sun/star/uno/XInterface.hpp>
27 : #include <rtl/ustring.h>
28 : #include <rtl/ustring.hxx>
29 :
30 : #include "thread.hxx"
31 : #include "jobqueue.hxx"
32 : #include "threadpool.hxx"
33 :
34 : using namespace osl;
35 : using namespace rtl;
36 :
37 : namespace cppu_threadpool {
38 :
39 :
40 100 : ThreadAdmin::ThreadAdmin(): m_disposed(false) {}
41 :
42 100 : ThreadAdmin::~ThreadAdmin()
43 : {
44 : #if OSL_DEBUG_LEVEL > 1
45 : if( m_lst.size() )
46 : {
47 : fprintf( stderr, "%lu Threads left\n" , static_cast<unsigned long>(m_lst.size()) );
48 : }
49 : #endif
50 100 : }
51 :
52 1667 : void ThreadAdmin::add( rtl::Reference< ORequestThread > const & p )
53 : {
54 1667 : MutexGuard aGuard( m_mutex );
55 1667 : if( m_disposed )
56 : {
57 : throw css::lang::DisposedException(
58 : "cppu_threadpool::ORequestThread created after"
59 0 : " cppu_threadpool::ThreadAdmin has been disposed");
60 : }
61 1667 : m_lst.push_back( p );
62 1667 : }
63 :
64 1667 : void ThreadAdmin::remove_locked( rtl::Reference< ORequestThread > const & p )
65 : {
66 1667 : ::std::list< rtl::Reference< ORequestThread > >::iterator ii = ::std::find( m_lst.begin(), m_lst.end(), p );
67 1667 : if( ii != m_lst.end() )
68 : {
69 1567 : m_lst.erase( ii );
70 : }
71 1667 : }
72 :
73 1667 : void ThreadAdmin::remove( rtl::Reference< ORequestThread > const & p )
74 : {
75 1667 : MutexGuard aGuard( m_mutex );
76 1667 : remove_locked( p );
77 1667 : }
78 :
79 100 : void ThreadAdmin::join()
80 : {
81 : {
82 100 : MutexGuard aGuard( m_mutex );
83 100 : m_disposed = true;
84 : }
85 : for (;;)
86 : {
87 200 : rtl::Reference< ORequestThread > pCurrent;
88 : {
89 200 : MutexGuard aGuard( m_mutex );
90 200 : if( m_lst.empty() )
91 : {
92 100 : break;
93 : }
94 100 : pCurrent = m_lst.front();
95 100 : m_lst.pop_front();
96 : }
97 100 : pCurrent->join();
98 100 : }
99 100 : }
100 :
101 :
102 1667 : ORequestThread::ORequestThread( ThreadPoolHolder const &aThreadPool,
103 : JobQueue *pQueue,
104 : const ByteSequence &aThreadId,
105 : bool bAsynchron )
106 : : m_aThreadPool( aThreadPool )
107 : , m_pQueue( pQueue )
108 : , m_aThreadId( aThreadId )
109 1667 : , m_bAsynchron( bAsynchron )
110 1667 : {}
111 :
112 3334 : ORequestThread::~ORequestThread() {}
113 :
114 366460 : void ORequestThread::setTask( JobQueue *pQueue,
115 : const ByteSequence &aThreadId,
116 : bool bAsynchron )
117 : {
118 366460 : m_pQueue = pQueue;
119 366460 : m_aThreadId = aThreadId;
120 366460 : m_bAsynchron = bAsynchron;
121 366460 : }
122 :
123 1667 : void ORequestThread::launch()
124 : {
125 : // Assumption is that osl::Thread::create returns normally with a true
126 : // return value iff it causes osl::Thread::run to start executing:
127 1667 : acquire();
128 1667 : ThreadAdmin & rThreadAdmin = m_aThreadPool->getThreadAdmin();
129 1667 : osl::ClearableMutexGuard g(rThreadAdmin.m_mutex);
130 1667 : rThreadAdmin.add( this );
131 : try {
132 1667 : if (!create()) {
133 0 : throw std::runtime_error("osl::Thread::create failed");
134 : }
135 0 : } catch (...) {
136 0 : rThreadAdmin.remove_locked( this );
137 0 : g.clear();
138 0 : release();
139 0 : throw;
140 1667 : }
141 1667 : }
142 :
143 1667 : void ORequestThread::onTerminated()
144 : {
145 1667 : m_aThreadPool->getThreadAdmin().remove( this );
146 1667 : release();
147 1667 : }
148 :
149 1667 : void ORequestThread::run()
150 : {
151 1667 : osl_setThreadName("cppu_threadpool::ORequestThread");
152 :
153 : try
154 : {
155 371452 : while ( m_pQueue )
156 : {
157 368119 : if( ! m_bAsynchron )
158 : {
159 311780 : if ( !uno_bindIdToCurrentThread( m_aThreadId.getHandle() ) )
160 : {
161 : OSL_ASSERT( false );
162 : }
163 : }
164 :
165 1104475 : while( ! m_pQueue->isEmpty() )
166 : {
167 : // Note : Oneways should not get a disposable disposeid,
168 : // It does not make sense to dispose a call in this state.
169 : // That's way we put it an disposeid, that can't be used otherwise.
170 : m_pQueue->enter(
171 : sal::static_int_cast< sal_Int64 >(
172 : reinterpret_cast< sal_IntPtr >(this)),
173 368226 : true );
174 :
175 368227 : if( m_pQueue->isEmpty() )
176 : {
177 368216 : m_aThreadPool->revokeQueue( m_aThreadId , m_bAsynchron );
178 : // Note : revokeQueue might have failed because m_pQueue.isEmpty()
179 : // may be false (race).
180 : }
181 : }
182 :
183 368127 : delete m_pQueue;
184 368127 : m_pQueue = 0;
185 :
186 368127 : if( ! m_bAsynchron )
187 : {
188 311785 : uno_releaseIdFromCurrentThread();
189 : }
190 :
191 368127 : m_aThreadPool->waitInPool( this );
192 : }
193 : }
194 0 : catch (...)
195 : {
196 : // Work around the problem that onTerminated is not called if run
197 : // throws an exception:
198 0 : onTerminated();
199 0 : throw;
200 : }
201 1667 : }
202 : }
203 :
204 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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