116 lines
3.4 KiB
C++
116 lines
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <osl/thread.hxx>
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#include <osl/diagnose.h>
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#include <rtl/process.h>
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#include <rtl/byteseq.hxx>
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#include <uno/threadpool.h>
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#include "current.hxx"
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using namespace ::osl;
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using namespace ::cppu;
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static void createLocalId( sal_Sequence **ppThreadId )
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{
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rtl_byte_sequence_constructNoDefault( ppThreadId , 4 + 16 );
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sal_uInt32 id = osl::Thread::getCurrentIdentifier();
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(*ppThreadId)->elements[0] = id & 0xFF;
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(*ppThreadId)->elements[1] = (id >> 8) & 0xFF;
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(*ppThreadId)->elements[2] = (id >> 16) & 0xFF;
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(*ppThreadId)->elements[3] = (id >> 24) & 0xFF;
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rtl_getGlobalProcessId( reinterpret_cast<sal_uInt8 *>(&(*ppThreadId)->elements[4]) );
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}
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extern "C" void SAL_CALL
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uno_getIdOfCurrentThread( sal_Sequence **ppThreadId ) noexcept
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{
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IdContainer& id = getIdContainer();
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if (!id.bInit)
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{
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// first time, that the thread enters the bridge
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createLocalId( ppThreadId );
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// TODO
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// note : this is a leak !
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id.pLocalThreadId = *ppThreadId;
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id.pCurrentId = *ppThreadId;
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id.nRefCountOfCurrentId = 1;
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rtl_byte_sequence_acquire( id.pLocalThreadId );
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rtl_byte_sequence_acquire( id.pCurrentId );
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id.bInit = true;
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}
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else
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{
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id.nRefCountOfCurrentId ++;
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if( *ppThreadId )
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{
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rtl_byte_sequence_release( *ppThreadId );
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}
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*ppThreadId = id.pCurrentId;
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rtl_byte_sequence_acquire( *ppThreadId );
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}
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}
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extern "C" void SAL_CALL uno_releaseIdFromCurrentThread() noexcept
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{
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IdContainer& id = getIdContainer();
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OSL_ASSERT( id.bInit );
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OSL_ASSERT( id.nRefCountOfCurrentId );
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id.nRefCountOfCurrentId --;
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if( ! id.nRefCountOfCurrentId && (id.pLocalThreadId != id.pCurrentId) )
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{
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rtl_byte_sequence_assign( &(id.pCurrentId) , id.pLocalThreadId );
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}
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}
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extern "C" sal_Bool SAL_CALL uno_bindIdToCurrentThread( sal_Sequence *pThreadId ) noexcept
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{
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IdContainer& id = getIdContainer();
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if (!id.bInit)
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{
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id.pLocalThreadId = nullptr;
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createLocalId( &(id.pLocalThreadId) );
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id.nRefCountOfCurrentId = 1;
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id.pCurrentId = pThreadId;
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rtl_byte_sequence_acquire(id.pCurrentId);
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id.bInit = true;
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}
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else
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{
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OSL_ASSERT( 0 == id.nRefCountOfCurrentId );
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if( 0 == id.nRefCountOfCurrentId )
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{
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rtl_byte_sequence_assign(&( id.pCurrentId ), pThreadId );
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id.nRefCountOfCurrentId ++;
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}
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else
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{
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return false;
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}
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}
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return true;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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