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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 "asyncrequests.hxx"
#include <vcl/svapp.hxx>
#include <osl/mutex.hxx>
namespace fpicker{
namespace win32{
namespace vista{
static void lcl_sleep( ::osl::Condition& aCondition,
::sal_Int32 nMilliSeconds )
{
sal_uLong nAcquireCount = Application::ReleaseSolarMutex();
if (nMilliSeconds < 1)
aCondition.wait(0);
else
{
TimeValue aTime;
aTime.Seconds = (nMilliSeconds / 1000);
aTime.Nanosec = (nMilliSeconds % 1000) * 1000000;
aCondition.wait(&aTime);
}
Application::AcquireSolarMutex( nAcquireCount );
}
void Request::wait( ::sal_Int32 nMilliSeconds )
{
lcl_sleep( m_aJoiner, nMilliSeconds );
}
void Request::waitProcessMessages()
{
SolarMutexGuard aGuard;
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::triggerJobExecution()
{
if ( ! isRunning())
create();
else
maWait.set();
}
void AsyncRequests::triggerRequestProcessMessages (const RequestRef& rRequest)
{
// SYNCHRONIZED ->
::osl::ResettableMutexGuard aLock(m_aMutex);
m_lRequests.push(rRequest);
aLock.clear();
// <- SYNCHRONIZED
rRequest->waitProcessMessages();
}
void AsyncRequests::triggerRequestBlocked(const RequestRef& rRequest)
{
// SYNCHRONIZED ->
::osl::ResettableMutexGuard aLock(m_aMutex);
m_lRequests.push(rRequest);
aLock.clear();
// <- SYNCHRONIZED
triggerJobExecution();
rRequest->wait(Request::WAIT_INFINITE);
}
void AsyncRequests::triggerRequestNonBlocked(const RequestRef& rRequest)
{
// SYNCHRONIZED ->
::osl::ResettableMutexGuard aLock(m_aMutex);
m_lRequests.push(rRequest);
aLock.clear();
// <- SYNCHRONIZED
triggerJobExecution();
}
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()
{
osl_setThreadName("fpicker::win32::vista::AsyncRequests");
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();
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(maWait, TIME_TO_WAIT_FOR_NEW_REQUESTS);
maWait.reset();
continue;
}
if (rHandler != NULL)
{
rHandler->doRequest(rRequest);
rRequest->notify();
}
}
if (rHandler != NULL)
rHandler->after();
}
} // namespace vista
} // namespace win32
} // namespace fpicker
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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