Adding upstream version 4:24.2.0.upstream/4%24.2.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 162 insertions, 0 deletions

diff --git a/cppu/source/threadpool/threadpool.hxx b/cppu/source/threadpool/threadpool.hxx
new file mode 100644
index 0000000000..afcae7a7e3
--- /dev/null
+++ b/cppu/source/threadpool/threadpool.hxx
@@ -0,0 +1,162 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <mutex>
+#include <vector>
+#include <unordered_map>
+
+#include <osl/conditn.hxx>
+#include <osl/mutex.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> 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( void const * nDisposeId );
+        void destroy( void const * nDisposeId );
+        bool isDisposed( void const * nDisposeId );
+
+    private:
+        std::mutex m_mutex;
+        std::vector< void const * > m_vector;
+    };
+
+    class ThreadAdmin
+    {
+    public:
+        ThreadAdmin();
+        ~ThreadAdmin ();
+
+        void remove( rtl::Reference< ORequestThread > const & );
+        void join();
+
+        bool add_locked( rtl::Reference< ORequestThread > const & );
+        void remove_locked( rtl::Reference< ORequestThread > const & );
+        std::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( void const * nDisposeId );
+        void destroy( void const * nDisposeId );
+
+        bool addJob( const ::rtl::ByteSequence &aThreadId,
+                     bool bAsynchron,
+                     void *pThreadSpecificData,
+                     RequestFun * doRequest,
+                     void const * disposeId );
+
+        void prepare( const ::rtl::ByteSequence &aThreadId );
+        void * enter( const ::rtl::ByteSequence &aThreadId, void const * 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;
+        std::mutex m_mutex;
+
+        std::mutex m_mutexWaitingThreadList;
+        WaitingThreadDeque m_dequeThreads;
+
+        DisposedCallerAdminHolder m_DisposedCallerAdmin;
+        ThreadAdmin m_aThreadAdmin;
+    };
+
+} // end namespace cppu_threadpool
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */