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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /cppu/source/threadpool/thread.cxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'cppu/source/threadpool/thread.cxx')
-rw-r--r--cppu/source/threadpool/thread.cxx198
1 files changed, 198 insertions, 0 deletions
diff --git a/cppu/source/threadpool/thread.cxx b/cppu/source/threadpool/thread.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <algorithm>
+#include <cstdlib>
+#include <osl/diagnose.h>
+#include <uno/threadpool.h>
+#include <sal/log.hxx>
+#include <utility>
+
+#include "thread.hxx"
+#include "jobqueue.hxx"
+#include "threadpool.hxx"
+
+using namespace osl;
+using namespace rtl;
+
+namespace cppu_threadpool {
+
+
+ ThreadAdmin::ThreadAdmin(): m_disposed(false) {}
+
+ ThreadAdmin::~ThreadAdmin()
+ {
+ SAL_WARN_IF(m_deque.size(), "cppu.threadpool", m_deque.size() << "Threads left");
+ }
+
+ bool ThreadAdmin::add_locked( rtl::Reference< ORequestThread > const & p )
+ {
+ if( m_disposed )
+ {
+ return false;
+ }
+ m_deque.push_back( p );
+ return true;
+ }
+
+ void ThreadAdmin::remove_locked( rtl::Reference< ORequestThread > const & p )
+ {
+ m_deque.erase(std::find( m_deque.begin(), m_deque.end(), p ), m_deque.end());
+ }
+
+ void ThreadAdmin::remove( rtl::Reference< ORequestThread > const & p )
+ {
+ std::scoped_lock aGuard( m_mutex );
+ remove_locked( p );
+ }
+
+ void ThreadAdmin::join()
+ {
+ {
+ std::scoped_lock aGuard( m_mutex );
+ m_disposed = true;
+ }
+ for (;;)
+ {
+ rtl::Reference< ORequestThread > pCurrent;
+ {
+ std::scoped_lock aGuard( m_mutex );
+ if( m_deque.empty() )
+ {
+ break;
+ }
+ pCurrent = m_deque.front();
+ m_deque.pop_front();
+ }
+ if (pCurrent->getIdentifier()
+ != osl::Thread::getCurrentIdentifier())
+ {
+ pCurrent->join();
+ }
+ }
+ }
+
+
+ ORequestThread::ORequestThread( ThreadPoolHolder aThreadPool,
+ JobQueue *pQueue,
+ ByteSequence aThreadId,
+ bool bAsynchron )
+ : m_aThreadPool(std::move( aThreadPool ))
+ , m_pQueue( pQueue )
+ , m_aThreadId(std::move( aThreadId ))
+ , m_bAsynchron( bAsynchron )
+ {}
+
+ ORequestThread::~ORequestThread() {}
+
+ void ORequestThread::setTask( JobQueue *pQueue,
+ const ByteSequence &aThreadId,
+ bool bAsynchron )
+ {
+ m_pQueue = pQueue;
+ m_aThreadId = aThreadId;
+ m_bAsynchron = bAsynchron;
+ }
+
+ bool ORequestThread::launch()
+ {
+ // Assumption is that osl::Thread::create returns normally with a true
+ // return value iff it causes osl::Thread::run to start executing:
+ acquire();
+ ThreadAdmin & rThreadAdmin = m_aThreadPool->getThreadAdmin();
+ std::unique_lock g(rThreadAdmin.m_mutex);
+ if (!rThreadAdmin.add_locked( this )) {
+ return false;
+ }
+ try {
+ if (!create()) {
+ std::abort();
+ }
+ } catch (...) {
+ rThreadAdmin.remove_locked( this );
+ g.release();
+ release();
+ throw;
+ }
+ return true;
+ }
+
+ void ORequestThread::onTerminated()
+ {
+ m_aThreadPool->getThreadAdmin().remove( this );
+ release();
+ }
+
+ void ORequestThread::run()
+ {
+ osl_setThreadName("cppu_threadpool::ORequestThread");
+
+ try
+ {
+ while ( m_pQueue )
+ {
+ if( ! m_bAsynchron )
+ {
+ if ( !uno_bindIdToCurrentThread( m_aThreadId.getHandle() ) )
+ {
+ OSL_ASSERT( false );
+ }
+ }
+
+ while( ! m_pQueue->isEmpty() )
+ {
+ // Note : Oneways should not get a disposable disposeid,
+ // It does not make sense to dispose a call in this state.
+ // That's way we put it a disposeid, that can't be used otherwise.
+ m_pQueue->enter(
+ this,
+ true );
+
+ if( m_pQueue->isEmpty() )
+ {
+ m_aThreadPool->revokeQueue( m_aThreadId , m_bAsynchron );
+ // Note : revokeQueue might have failed because m_pQueue.isEmpty()
+ // may be false (race).
+ }
+ }
+
+ delete m_pQueue;
+ m_pQueue = nullptr;
+
+ if( ! m_bAsynchron )
+ {
+ uno_releaseIdFromCurrentThread();
+ }
+
+ m_aThreadPool->waitInPool( this );
+ }
+ }
+ catch (...)
+ {
+ // Work around the problem that onTerminated is not called if run
+ // throws an exception:
+ onTerminated();
+ throw;
+ }
+ }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */