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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 16:51:28 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 16:51:28 +0000 |
commit | 940b4d1848e8c70ab7642901a68594e8016caffc (patch) | |
tree | eb72f344ee6c3d9b80a7ecc079ea79e9fba8676d /cppu/source/threadpool/threadpool.hxx | |
parent | Initial commit. (diff) | |
download | libreoffice-upstream.tar.xz libreoffice-upstream.zip |
Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'cppu/source/threadpool/threadpool.hxx')
-rw-r--r-- | cppu/source/threadpool/threadpool.hxx | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/cppu/source/threadpool/threadpool.hxx b/cppu/source/threadpool/threadpool.hxx new file mode 100644 index 000000000..85188fc52 --- /dev/null +++ b/cppu/source/threadpool/threadpool.hxx @@ -0,0 +1,163 @@ +/* -*- 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 . + */ + +#ifndef INCLUDED_CPPU_SOURCE_THREADPOOL_THREADPOOL_HXX +#define INCLUDED_CPPU_SOURCE_THREADPOOL_THREADPOOL_HXX + +#include <vector> +#include <unordered_map> + +#include <osl/conditn.hxx> + +#include <rtl/byteseq.hxx> +#include <rtl/ref.hxx> +#include <salhelper/simplereferenceobject.hxx> + +#include "jobqueue.hxx" + + +namespace cppu_threadpool { + class ORequestThread; + + struct EqualThreadId + { + bool operator () ( const ::rtl::ByteSequence &a , const ::rtl::ByteSequence &b ) const + { + return a == b; + } + }; + + struct HashThreadId + { + sal_Int32 operator () ( const ::rtl::ByteSequence &a ) const + { + if( a.getLength() >= 4 ) + { + return *reinterpret_cast<sal_Int32 const *>(a.getConstArray()); + } + return 0; + } + }; + + typedef std::unordered_map + < + ::rtl::ByteSequence, // ThreadID + std::pair < JobQueue * , JobQueue * >, + HashThreadId, + EqualThreadId + > ThreadIdHashMap; + + struct WaitingThread + { + osl::Condition condition; + rtl::Reference< ORequestThread > thread; + + explicit WaitingThread( + rtl::Reference<ORequestThread> const & theThread); + }; + + typedef std::deque< struct ::cppu_threadpool::WaitingThread * > WaitingThreadDeque; + + class DisposedCallerAdmin; + typedef std::shared_ptr<DisposedCallerAdmin> DisposedCallerAdminHolder; + + class DisposedCallerAdmin + { + public: + ~DisposedCallerAdmin(); + + static DisposedCallerAdminHolder const & getInstance(); + + void dispose( sal_Int64 nDisposeId ); + void destroy( sal_Int64 nDisposeId ); + bool isDisposed( sal_Int64 nDisposeId ); + + private: + ::osl::Mutex m_mutex; + std::vector< sal_Int64 > m_vector; + }; + + class ThreadAdmin + { + public: + ThreadAdmin(); + ~ThreadAdmin (); + + bool add( rtl::Reference< ORequestThread > const & ); + void remove( rtl::Reference< ORequestThread > const & ); + void join(); + + void remove_locked( rtl::Reference< ORequestThread > const & ); + ::osl::Mutex m_mutex; + + private: + std::deque< rtl::Reference< ORequestThread > > m_deque; + bool m_disposed; + }; + + class ThreadPool; + typedef rtl::Reference<ThreadPool> ThreadPoolHolder; + + class ThreadPool: public salhelper::SimpleReferenceObject + { + public: + ThreadPool(); + virtual ~ThreadPool() override; + + void dispose( sal_Int64 nDisposeId ); + void destroy( sal_Int64 nDisposeId ); + + bool addJob( const ::rtl::ByteSequence &aThreadId, + bool bAsynchron, + void *pThreadSpecificData, + RequestFun * doRequest ); + + void prepare( const ::rtl::ByteSequence &aThreadId ); + void * enter( const ::rtl::ByteSequence &aThreadId, sal_Int64 nDisposeId ); + + /******** + * @return true, if queue could be successfully revoked. + ********/ + bool revokeQueue( const ::rtl::ByteSequence & aThreadId , bool bAsynchron ); + + void waitInPool( rtl::Reference< ORequestThread > const & pThread ); + + void joinWorkers(); + + ThreadAdmin & getThreadAdmin() { return m_aThreadAdmin; } + + private: + bool createThread( JobQueue *pQueue, const ::rtl::ByteSequence &aThreadId, bool bAsynchron); + + + ThreadIdHashMap m_mapQueue; + ::osl::Mutex m_mutex; + + ::osl::Mutex m_mutexWaitingThreadList; + WaitingThreadDeque m_dequeThreads; + + DisposedCallerAdminHolder m_DisposedCallerAdmin; + ThreadAdmin m_aThreadAdmin; + }; + +} // end namespace cppu_threadpool + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |