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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: asyncrequests.cxx,v $
* $Revision: 1.4 $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include "asyncrequests.hxx"
#include <vcl/svapp.hxx>
//-----------------------------------------------------------------------------
// namespace
//-----------------------------------------------------------------------------
namespace fpicker{
namespace win32{
namespace vista{
namespace css = ::com::sun::star;
//-----------------------------------------------------------------------------
void lcl_sleep(::osl::Condition& aCondition ,
::sal_Int32 nMilliSeconds)
{
ULONG nAcquireCount = Application::ReleaseSolarMutex();
if (nMilliSeconds < 1)
aCondition.wait(0);
else
{
TimeValue aTime;
aTime.Seconds = (nMilliSeconds / 1000);
aTime.Nanosec = (nMilliSeconds % 1000);
aCondition.wait(&aTime);
}
Application::AcquireSolarMutex( nAcquireCount );
}
//-----------------------------------------------------------------------------
void Request::wait(::sal_Int32 nMilliSeconds)
{
lcl_sleep(m_aJoiner, nMilliSeconds);
}
void Request::waitProcessMessages()
{
while (!m_aJoiner.check())
Application::Yield();
}
//-----------------------------------------------------------------------------
void Request::notify()
{
m_aJoiner.set();
}
//-----------------------------------------------------------------------------
AsyncRequests::AsyncRequests(const RequestHandlerRef& rHandler)
: ::cppu::BaseMutex( )
, ::osl::Thread ( )
, m_bFinish (sal_False)
, m_rHandler (rHandler )
, m_lRequests ( )
{
}
//-----------------------------------------------------------------------------
AsyncRequests::~AsyncRequests()
{
// SYNCHRONIZED ->
::osl::ResettableMutexGuard aLock(m_aMutex);
m_bFinish = sal_True;
aLock.clear();
// <- SYNCHRONIZED
join();
}
void AsyncRequests::triggerRequestProcessMessages (const RequestRef& rRequest)
{
// SYNCHRONIZED ->
::osl::ResettableMutexGuard aLock(m_aMutex);
m_lRequests.push(rRequest);
aLock.clear();
// <- SYNCHRONIZED
if ( ! isRunning())
create();
rRequest->waitProcessMessages();
}
//-----------------------------------------------------------------------------
void AsyncRequests::triggerRequestBlocked(const RequestRef& rRequest)
{
// SYNCHRONIZED ->
::osl::ResettableMutexGuard aLock(m_aMutex);
m_lRequests.push(rRequest);
aLock.clear();
// <- SYNCHRONIZED
if ( ! isRunning())
create();
rRequest->wait(Request::WAIT_INFINITE);
}
//-----------------------------------------------------------------------------
void AsyncRequests::triggerRequestNonBlocked(const RequestRef& rRequest)
{
// SYNCHRONIZED ->
::osl::ResettableMutexGuard aLock(m_aMutex);
m_lRequests.push(rRequest);
aLock.clear();
// <- SYNCHRONIZED
if ( ! isRunning())
create();
}
//-----------------------------------------------------------------------------
void AsyncRequests::triggerRequestDirectly(const RequestRef& rRequest)
{
// SYNCHRONIZED ->
::osl::ResettableMutexGuard aLock(m_aMutex);
RequestHandlerRef rHandler = m_rHandler;
aLock.clear();
// <- SYNCHRONIZED
if (rHandler != NULL)
rHandler->doRequest(rRequest);
}
//-----------------------------------------------------------------------------
void AsyncRequests::triggerRequestThreadAware(const RequestRef& rRequest,
::sal_Int16 nWait )
{
oslThreadIdentifier nOurThreadId = getIdentifier();
oslThreadIdentifier nCallerThreadId = ::osl::Thread::getCurrentIdentifier();
if (nOurThreadId == nCallerThreadId)
triggerRequestDirectly(rRequest);
else if (nWait == BLOCKED)
triggerRequestBlocked(rRequest);
else if (nWait == PROCESS_MESSAGES)
triggerRequestProcessMessages(rRequest);
else
triggerRequestNonBlocked(rRequest);
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
void SAL_CALL AsyncRequests::run()
{
static const ::sal_Int32 TIME_TO_WAIT_FOR_NEW_REQUESTS = 250;
// SYNCHRONIZED ->
::osl::ResettableMutexGuard aLock(m_aMutex);
RequestHandlerRef rHandler = m_rHandler;
::sal_Bool bFinished = m_bFinish;
aLock.clear();
// <- SYNCHRONIZED
if (rHandler != NULL)
rHandler->before();
::osl::Condition aWait;
while ( ! bFinished)
{
// SYNCHRONIZED ->
aLock.reset();
RequestRef rRequest;
if ( ! m_lRequests.empty())
{
rRequest = m_lRequests.front();
m_lRequests.pop();
}
bFinished = m_bFinish;
aLock.clear();
// <- SYNCHRONIZED
if (rRequest == NULL)
{
lcl_sleep(aWait, TIME_TO_WAIT_FOR_NEW_REQUESTS);
continue;
}
if (rHandler != NULL)
{
rHandler->doRequest(rRequest);
rRequest->notify();
}
}
if (rHandler != NULL)
rHandler->after();
}
} // namespace vista
} // namespace win32
} // namespace fpicker
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