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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 <osl/thread.hxx>
#include <osl/diagnose.h>
#include <rtl/process.h>
#include <rtl/byteseq.hxx>
#include <uno/threadpool.h>
#include "current.hxx"
using namespace ::std;
using namespace ::osl;
using namespace ::cppu;
static void createLocalId( sal_Sequence **ppThreadId )
{
rtl_byte_sequence_constructNoDefault( ppThreadId , 4 + 16 );
sal_uInt32 id = osl::Thread::getCurrentIdentifier();
(*ppThreadId)->elements[0] = id & 0xFF;
(*ppThreadId)->elements[1] = (id >> 8) & 0xFF;
(*ppThreadId)->elements[2] = (id >> 16) & 0xFF;
(*ppThreadId)->elements[3] = (id >> 24) & 0xFF;
rtl_getGlobalProcessId( reinterpret_cast<sal_uInt8 *>(&(*ppThreadId)->elements[4]) );
}
extern "C" void SAL_CALL
uno_getIdOfCurrentThread( sal_Sequence **ppThreadId )
SAL_THROW_EXTERN_C()
{
IdContainer * p = getIdContainer();
if( ! p->bInit )
{
// first time, that the thread enters the bridge
createLocalId( ppThreadId );
// TODO
// note : this is a leak !
p->pLocalThreadId = *ppThreadId;
p->pCurrentId = *ppThreadId;
p->nRefCountOfCurrentId = 1;
rtl_byte_sequence_acquire( p->pLocalThreadId );
rtl_byte_sequence_acquire( p->pCurrentId );
p->bInit = true;
}
else
{
p->nRefCountOfCurrentId ++;
if( *ppThreadId )
{
rtl_byte_sequence_release( *ppThreadId );
}
*ppThreadId = p->pCurrentId;
rtl_byte_sequence_acquire( *ppThreadId );
}
}
extern "C" void SAL_CALL uno_releaseIdFromCurrentThread()
SAL_THROW_EXTERN_C()
{
IdContainer *p = getIdContainer();
OSL_ASSERT( p );
OSL_ASSERT( p->bInit );
OSL_ASSERT( p->nRefCountOfCurrentId );
p->nRefCountOfCurrentId --;
if( ! p->nRefCountOfCurrentId && (p->pLocalThreadId != p->pCurrentId) )
{
rtl_byte_sequence_assign( &(p->pCurrentId) , p->pLocalThreadId );
}
}
extern "C" sal_Bool SAL_CALL uno_bindIdToCurrentThread( sal_Sequence *pThreadId )
SAL_THROW_EXTERN_C()
{
IdContainer *p = getIdContainer();
if( ! p->bInit )
{
p->pLocalThreadId = nullptr;
createLocalId( &(p->pLocalThreadId) );
p->nRefCountOfCurrentId = 1;
p->pCurrentId = pThreadId;
rtl_byte_sequence_acquire( p->pCurrentId );
p->bInit = true;
}
else
{
OSL_ASSERT( 0 == p->nRefCountOfCurrentId );
if( 0 == p->nRefCountOfCurrentId )
{
rtl_byte_sequence_assign(&( p->pCurrentId ), pThreadId );
p->nRefCountOfCurrentId ++;
}
else
{
return false;
}
}
return true;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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