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| -rw-r--r-- | include/osl/thread.hxx | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/include/osl/thread.hxx b/include/osl/thread.hxx new file mode 100644 index 000000000..215836c5e --- /dev/null +++ b/include/osl/thread.hxx @@ -0,0 +1,236 @@ +/* -*- 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_OSL_THREAD_HXX +#define INCLUDED_OSL_THREAD_HXX + +#include "sal/config.h" + +#include <cassert> +#include <cstddef> + +#include "osl/time.h" +#include "osl/thread.h" +#include "rtl/alloc.h" + +namespace osl +{ +/** threadFunc is the function which is executed by the threads + created by the osl::Thread class. The function's signature + matches the one of oslWorkerFunction which is declared in + osl/thread.h +*/ +extern "C" inline void SAL_CALL threadFunc( void* param); + +/** + A thread abstraction. + + @deprecated use ::salhelper::Thread instead. Only the static member + functions ::osl::Thread::getCurrentIdentifier, ::osl::Thread::wait, and + ::osl::Thread::yield are not deprecated. + */ +class Thread +{ + Thread( const Thread& ) SAL_DELETED_FUNCTION; + Thread& operator= ( const Thread& ) SAL_DELETED_FUNCTION; +public: + // these are here to force memory de/allocation to sal lib. + static void * SAL_CALL operator new( size_t nSize ) + { return ::rtl_allocateMemory( nSize ); } + static void SAL_CALL operator delete( void * pMem ) + { ::rtl_freeMemory( pMem ); } + static void * SAL_CALL operator new( size_t, void * pMem ) + { return pMem; } + static void SAL_CALL operator delete( void *, void * ) + {} + + Thread(): m_hThread(NULL){} + + virtual ~Thread() COVERITY_NOEXCEPT_FALSE + { + osl_destroyThread( m_hThread); + } + + bool SAL_CALL create() + { + assert(m_hThread == NULL); // only one running thread per instance + m_hThread = osl_createSuspendedThread( threadFunc, static_cast<void*>(this)); + if (m_hThread == NULL) + { + return false; + } + osl_resumeThread(m_hThread); + return true; + } + + bool SAL_CALL createSuspended() + { + assert(m_hThread == NULL); // only one running thread per instance + if( m_hThread) + return false; + m_hThread= osl_createSuspendedThread( threadFunc, + static_cast<void*>(this)); + return m_hThread != NULL; + } + + virtual void SAL_CALL suspend() + { + if( m_hThread ) + osl_suspendThread(m_hThread); + } + + virtual void SAL_CALL resume() + { + if( m_hThread ) + osl_resumeThread(m_hThread); + } + + virtual void SAL_CALL terminate() + { + if( m_hThread ) + osl_terminateThread(m_hThread); + } + + virtual void SAL_CALL join() + { + osl_joinWithThread(m_hThread); + } + + bool SAL_CALL isRunning() const + { + return osl_isThreadRunning(m_hThread); + } + + void SAL_CALL setPriority( oslThreadPriority Priority) + { + if( m_hThread ) + osl_setThreadPriority(m_hThread, Priority); + } + + oslThreadPriority SAL_CALL getPriority() const + { + return m_hThread ? osl_getThreadPriority(m_hThread) : osl_Thread_PriorityUnknown; + } + + oslThreadIdentifier SAL_CALL getIdentifier() const + { + return osl_getThreadIdentifier(m_hThread); + } + + static oslThreadIdentifier SAL_CALL getCurrentIdentifier() + { + return osl_getThreadIdentifier(NULL); + } + + static void SAL_CALL wait(const TimeValue& Delay) + { + osl_waitThread(&Delay); + } + + static void SAL_CALL yield() + { + osl_yieldThread(); + } + + static void setName(char const * name) throw () { + osl_setThreadName(name); + } + + virtual bool SAL_CALL schedule() + { + return m_hThread && osl_scheduleThread(m_hThread); + } + + SAL_CALL operator oslThread() const + { + return m_hThread; + } + +protected: + + /** The thread functions calls the protected functions + run and onTerminated. + */ + friend void SAL_CALL threadFunc( void* param); + + virtual void SAL_CALL run() = 0; + + virtual void SAL_CALL onTerminated() + { + } + +private: + oslThread m_hThread; +}; + +extern "C" inline void SAL_CALL threadFunc( void* param) +{ + Thread* pObj= static_cast<Thread*>(param); + pObj->run(); + pObj->onTerminated(); +} + +class ThreadData +{ + ThreadData( const ThreadData& ) SAL_DELETED_FUNCTION; + ThreadData& operator= (const ThreadData& ) SAL_DELETED_FUNCTION; +public: + /// Create a thread specific local data key + ThreadData( oslThreadKeyCallbackFunction pCallback= NULL ) + { + m_hKey = osl_createThreadKey( pCallback ); + } + + /// Destroy a thread specific local data key + ~ThreadData() + { + osl_destroyThreadKey(m_hKey); + } + + /** Set the data associated with the data key. + @returns True if operation was successful + */ + bool SAL_CALL setData(void *pData) + { + return osl_setThreadKeyData(m_hKey, pData); + } + + /** Get the data associated with the data key. + @returns The data associated with the data key or + NULL if no data was set + */ + void* SAL_CALL getData() + { + return osl_getThreadKeyData(m_hKey); + } + + operator oslThreadKey() const + { + return m_hKey; + } + +private: + oslThreadKey m_hKey; +}; + +} // end namespace osl + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |