331 lines
9.7 KiB
C++
331 lines
9.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_fpicker.hxx"
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//------------------------------------------------------------------------
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// includes
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//------------------------------------------------------------------------
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#include <osl/diagnose.h>
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#include "asynceventnotifier.hxx"
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#include <com/sun/star/uno/RuntimeException.hpp>
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#include <com/sun/star/ui/dialogs/XFilePickerListener.hpp>
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#include <process.h>
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#include <memory>
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#include "SolarMutex.hxx"
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//------------------------------------------------
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//
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//------------------------------------------------
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using namespace com::sun::star;
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using ::com::sun::star::ui::dialogs::XFilePickerListener;
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//------------------------------------------------
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//
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//------------------------------------------------
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CAsyncEventNotifier::CAsyncEventNotifier(cppu::OBroadcastHelper& rBroadcastHelper) :
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m_hThread(0),
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m_bRun(false),
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m_ThreadId(0),
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m_rBroadcastHelper(rBroadcastHelper),
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m_NotifyEvent(m_hEvents[0]),
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m_ResumeNotifying(m_hEvents[1])
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{
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// m_NotifyEvent
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m_hEvents[0] = CreateEvent(0, /* no security */
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true, /* manual reset */
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false, /* initial state not signaled */
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0); /* automatic name */
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// m_ResumeNotifying
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m_hEvents[1] = CreateEvent(0, /* no security */
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true, /* manual reset */
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false, /* initial state not signaled */
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0); /* automatic name */
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}
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//------------------------------------------------
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//
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//------------------------------------------------
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CAsyncEventNotifier::~CAsyncEventNotifier()
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{
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OSL_ENSURE(0 == m_hThread,"Thread not stopped, destroying this instance leads to desaster");
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CloseHandle(m_hEvents[0]);
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CloseHandle(m_hEvents[1]);
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}
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//------------------------------------------------
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//
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//------------------------------------------------
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void SAL_CALL CAsyncEventNotifier::addListener(const uno::Type& aType ,
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const uno::Reference< uno::XInterface >& xListener)
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{
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if ( m_rBroadcastHelper.bDisposed )
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throw lang::DisposedException(
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::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM( "FilePicker is already disposed" )),
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uno::Reference< uno::XInterface >() );
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if ( m_rBroadcastHelper.bInDispose )
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throw lang::DisposedException(
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::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM( "FilePicker will be disposed now." )),
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uno::Reference< uno::XInterface >() );
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m_rBroadcastHelper.aLC.addInterface( aType, xListener );
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}
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//------------------------------------------------
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//
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//------------------------------------------------
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void SAL_CALL CAsyncEventNotifier::removeListener(const uno::Type& aType ,
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const uno::Reference< uno::XInterface >& xListener)
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{
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if ( m_rBroadcastHelper.bDisposed )
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throw lang::DisposedException(
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::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM( "FilePicker is already disposed." )),
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uno::Reference< uno::XInterface >() );
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m_rBroadcastHelper.aLC.removeInterface( aType, xListener );
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}
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//------------------------------------------------
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//
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//------------------------------------------------
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bool SAL_CALL CAsyncEventNotifier::startup(bool bCreateSuspended)
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{
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osl::MutexGuard aGuard(m_Mutex);
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// m_bRun may already be false because of a
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// call to stop but the thread did not yet
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// terminate so m_hEventNotifierThread is
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// yet a valid thread handle that should
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// not be overwritten
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if (!m_bRun)
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{
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if (!bCreateSuspended)
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SetEvent(m_ResumeNotifying);
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m_hThread = (HANDLE)_beginthreadex(
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NULL, 0, CAsyncEventNotifier::ThreadProc, this, 0, &m_ThreadId);
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OSL_ASSERT(0 != m_hThread);
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if (m_hThread)
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m_bRun = true;
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}
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OSL_POSTCOND(m_bRun,"Could not start event notifier!");
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return m_bRun;
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}
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//------------------------------------------------
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//
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//------------------------------------------------
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void SAL_CALL CAsyncEventNotifier::shutdown()
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{
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unsigned nThreadId = GetCurrentThreadId();
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OSL_PRECOND(nThreadId != m_ThreadId, "Method called in wrong thread context!");
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osl::ResettableMutexGuard aGuard(m_Mutex);
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OSL_PRECOND(m_bRun,"Event notifier does not run!");
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m_bRun = false;
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m_EventList.clear();
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// awake the the notifier thread
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SetEvent(m_ResumeNotifying);
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SetEvent(m_NotifyEvent);
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// releas the mutex here because the event
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// notifier thread may need it to finish
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aGuard.clear();
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// we are waiting infinite, so error will
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// be better detected in form of deadlocks
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if (WaitForSingleObject(m_hThread, INFINITE) == WAIT_FAILED) {
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OSL_ENSURE(false, "Waiting for thread termination failed!");
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}
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// lock mutex again to reset m_hThread
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// and prevent a race with start()
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aGuard.reset();
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CloseHandle(m_hThread);
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m_hThread = 0;
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}
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//------------------------------------------------
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//
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//------------------------------------------------
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void CAsyncEventNotifier::suspend()
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{
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ResetEvent(m_ResumeNotifying);
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}
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//------------------------------------------------
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//
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//------------------------------------------------
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void CAsyncEventNotifier::resume()
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{
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SetEvent(m_ResumeNotifying);
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}
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//------------------------------------------------
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//
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//------------------------------------------------
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void SAL_CALL CAsyncEventNotifier::notifyEvent(CEventNotification* EventNotification)
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{
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osl::MutexGuard aGuard(m_Mutex);
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OSL_ENSURE(m_bRun,"Event notifier is not running!");
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if (m_bRun)
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{
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m_EventList.push_back(EventNotification);
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SetEvent(m_NotifyEvent);
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}
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}
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//------------------------------------------------
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//
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//------------------------------------------------
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size_t SAL_CALL CAsyncEventNotifier::getEventListSize()
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{
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osl::MutexGuard aGuard(m_Mutex);
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return m_EventList.size();
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}
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//------------------------------------------------
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//
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//------------------------------------------------
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void SAL_CALL CAsyncEventNotifier::resetNotifyEvent()
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{
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osl::MutexGuard aGuard(m_Mutex);
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if (0 == m_EventList.size())
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ResetEvent(m_NotifyEvent);
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}
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//------------------------------------------------
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//
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//------------------------------------------------
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CEventNotification* SAL_CALL CAsyncEventNotifier::getNextEventRecord()
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{
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osl::MutexGuard aGuard(m_Mutex);
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return m_EventList.front();
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}
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//------------------------------------------------
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//
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//------------------------------------------------
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void SAL_CALL CAsyncEventNotifier::removeNextEventRecord()
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{
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osl::MutexGuard aGuard(m_Mutex);
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m_EventList.pop_front();
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}
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//------------------------------------------------
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//
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//------------------------------------------------
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void SAL_CALL CAsyncEventNotifier::run()
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{
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while (m_bRun)
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{
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WaitForMultipleObjects(2, m_hEvents, true, INFINITE);
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if (m_bRun)
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{
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while (getEventListSize() > 0)
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{
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std::auto_ptr<CEventNotification> EventNotification(getNextEventRecord());
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removeNextEventRecord();
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::cppu::OInterfaceContainerHelper* pICHelper =
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m_rBroadcastHelper.getContainer(getCppuType((uno::Reference<XFilePickerListener>*)0));
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if (pICHelper)
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{
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::cppu::OInterfaceIteratorHelper iter(*pICHelper);
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while(iter.hasMoreElements())
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{
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try
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{
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EventNotification->notifyEventListener(iter.next());
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}
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catch(uno::RuntimeException&)
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{
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OSL_ENSURE(sal_False,"RuntimeException during event dispatching");
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}
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}
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}
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} // while(getEventListSize() > 0)
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resetNotifyEvent();
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} // if (m_bRun)
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} // while(m_bRun)
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}
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//------------------------------------------------
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//
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//------------------------------------------------
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unsigned int WINAPI CAsyncEventNotifier::ThreadProc(LPVOID pParam)
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{
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CAsyncEventNotifier* pInst = reinterpret_cast< CAsyncEventNotifier* >(pParam);
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OSL_ASSERT(pInst);
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pInst->run();
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return 0;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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