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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 .
*/
#ifndef INCLUDED_VCL_SCHEDULER_HXX
#define INCLUDED_VCL_SCHEDULER_HXX
#include <vcl/dllapi.h>
struct ImplSVData;
class Scheduler;
struct ImplSchedulerData
{
ImplSchedulerData* mpNext; // Pointer to the next element in list
Scheduler* mpScheduler; // Pointer to VCL Scheduler instance
bool mbDelete; // Destroy this scheduler?
bool mbInScheduler; // Scheduler currently processed?
sal_uInt64 mnUpdateTime; // Last Update Time
sal_uInt32 mnUpdateStack; // Update Stack
void Invoke();
static ImplSchedulerData *GetMostImportantTask( bool bTimer );
};
enum class SchedulerPriority {
HIGHEST = 0,
HIGH = 1,
RESIZE = 2,
REPAINT = 3,
MEDIUM = 3,
LOW = 4,
LOWER = 5,
LOWEST = 6
};
class VCL_DLLPUBLIC Scheduler
{
protected:
ImplSchedulerData* mpSchedulerData; // Pointer to element in scheduler list
SchedulerPriority mePriority; // Scheduler priority
bool mbActive; // Currently in the scheduler
friend struct ImplSchedulerData;
virtual void SetDeletionFlags();
virtual bool ReadyForSchedule( bool bTimer ) { return !bTimer; }
virtual sal_uInt64 UpdateMinPeriod( sal_uInt64 nMinPeriod, sal_uInt64 nTime );
public:
Scheduler();
Scheduler( const Scheduler& rScheduler );
virtual ~Scheduler();
void SetPriority( SchedulerPriority ePriority );
SchedulerPriority GetPriority() const { return mePriority; }
// Call handler
virtual void Invoke() = 0;
virtual void Start();
virtual void Stop();
bool IsActive() const { return mbActive; }
void SetInActive() { mbActive = false; }
Scheduler& operator=( const Scheduler& rScheduler );
static void ImplDeInitScheduler();
// Process one pending Timer with highhest priority
static void CallbackTaskScheduling( bool ignore );
/// Process one pending task ahead of time with highhest priority.
static void ProcessTaskScheduling( bool bTimer );
};
#endif // INCLUDED_VCL_SCHEDULER_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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