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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 <sal/config.h>
#include <algorithm>
#include <cstdlib>
#include <osl/diagnose.h>
#include <uno/threadpool.h>
#include <sal/log.hxx>
#include "thread.hxx"
#include "jobqueue.hxx"
#include "threadpool.hxx"
using namespace osl;
using namespace rtl;
namespace cppu_threadpool {
ThreadAdmin::ThreadAdmin(): m_disposed(false) {}
ThreadAdmin::~ThreadAdmin()
{
SAL_WARN_IF(m_deque.size(), "cppu.threadpool", m_deque.size() << "Threads left");
}
bool ThreadAdmin::add( rtl::Reference< ORequestThread > const & p )
{
MutexGuard aGuard( m_mutex );
if( m_disposed )
{
return false;
}
m_deque.push_back( p );
return true;
}
void ThreadAdmin::remove_locked( rtl::Reference< ORequestThread > const & p )
{
m_deque.erase(std::find( m_deque.begin(), m_deque.end(), p ), m_deque.end());
}
void ThreadAdmin::remove( rtl::Reference< ORequestThread > const & p )
{
MutexGuard aGuard( m_mutex );
remove_locked( p );
}
void ThreadAdmin::join()
{
{
MutexGuard aGuard( m_mutex );
m_disposed = true;
}
for (;;)
{
rtl::Reference< ORequestThread > pCurrent;
{
MutexGuard aGuard( m_mutex );
if( m_deque.empty() )
{
break;
}
pCurrent = m_deque.front();
m_deque.pop_front();
}
if (pCurrent->getIdentifier()
!= osl::Thread::getCurrentIdentifier())
{
pCurrent->join();
}
}
}
ORequestThread::ORequestThread( ThreadPoolHolder const &aThreadPool,
JobQueue *pQueue,
const ByteSequence &aThreadId,
bool bAsynchron )
: m_aThreadPool( aThreadPool )
, m_pQueue( pQueue )
, m_aThreadId( aThreadId )
, m_bAsynchron( bAsynchron )
{}
ORequestThread::~ORequestThread() {}
void ORequestThread::setTask( JobQueue *pQueue,
const ByteSequence &aThreadId,
bool bAsynchron )
{
m_pQueue = pQueue;
m_aThreadId = aThreadId;
m_bAsynchron = bAsynchron;
}
bool ORequestThread::launch()
{
// Assumption is that osl::Thread::create returns normally with a true
// return value iff it causes osl::Thread::run to start executing:
acquire();
ThreadAdmin & rThreadAdmin = m_aThreadPool->getThreadAdmin();
osl::ClearableMutexGuard g(rThreadAdmin.m_mutex);
if (!rThreadAdmin.add( this )) {
return false;
}
try {
if (!create()) {
std::abort();
}
} catch (...) {
rThreadAdmin.remove_locked( this );
g.clear();
release();
throw;
}
return true;
}
void ORequestThread::onTerminated()
{
m_aThreadPool->getThreadAdmin().remove( this );
release();
}
void ORequestThread::run()
{
osl_setThreadName("cppu_threadpool::ORequestThread");
try
{
while ( m_pQueue )
{
if( ! m_bAsynchron )
{
if ( !uno_bindIdToCurrentThread( m_aThreadId.getHandle() ) )
{
OSL_ASSERT( false );
}
}
while( ! m_pQueue->isEmpty() )
{
// Note : Oneways should not get a disposable disposeid,
// It does not make sense to dispose a call in this state.
// That's way we put it a disposeid, that can't be used otherwise.
m_pQueue->enter(
sal::static_int_cast< sal_Int64 >(
reinterpret_cast< sal_IntPtr >(this)),
true );
if( m_pQueue->isEmpty() )
{
m_aThreadPool->revokeQueue( m_aThreadId , m_bAsynchron );
// Note : revokeQueue might have failed because m_pQueue.isEmpty()
// may be false (race).
}
}
delete m_pQueue;
m_pQueue = nullptr;
if( ! m_bAsynchron )
{
uno_releaseIdFromCurrentThread();
}
m_aThreadPool->waitInPool( this );
}
}
catch (...)
{
// Work around the problem that onTerminated is not called if run
// throws an exception:
onTerminated();
throw;
}
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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