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/*************************************************************************
* *
* Open Dynamics Engine, Copyright (C) 2001,2002 Russell L. Smith. *
* All rights reserved. Email: russ@q12.org Web: www.q12.org *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of EITHER: *
* (1) The GNU Lesser General Public License as published by the Free *
* Software Foundation; either version 2.1 of the License, or (at *
* your option) any later version. The text of the GNU Lesser *
* General Public License is included with this library in the *
* file LICENSE.TXT. *
* (2) The BSD-style license that is included with this library in *
* the file LICENSE-BSD.TXT. *
* *
* This library 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 files *
* LICENSE.TXT and LICENSE-BSD.TXT for more details. *
* *
*************************************************************************/
/*
* Resource accounting/preallocation class declarations
* Copyright (c) 2017-2019 Oleh Derevenko, odar@eleks.com (change all "a" to "e")
*/
#ifndef _ODE__PRIVATE_RESOURCE_CONTRIOL_H_
#define _ODE__PRIVATE_RESOURCE_CONTRIOL_H_
#include "objects.h"
#include "threading_base.h"
#include "odeou.h"
#include "common.h"
#include "error.h"
using _OU_NAMESPACE::CSimpleFlags;
class dxResourceRequirementDescriptor:
public dBase
{
public:
explicit dxResourceRequirementDescriptor(dxThreadingBase *relatedThreading):
dBase(),
m_relatedThreading(relatedThreading),
m_memorySizeRequirement(0),
m_memoryAlignmentRequirement(0),
m_simultaneousCallRequirement(0),
m_featureRequirements()
{
}
~dxResourceRequirementDescriptor();
enum
{
STOCK_CALLWAIT_REQUIRED = 0x00000001,
};
void mergeAnotherDescriptorIn(const dxResourceRequirementDescriptor &anotherDescriptor)
{
dIASSERT(getrelatedThreading() == anotherDescriptor.getrelatedThreading()); // m_simultaneousCallRequirement typically depends on threading used
CSimpleFlags::value_type allOtherFeatureFlags = anotherDescriptor.queryAllFeatureFlags();
mergeAnotherDescriptorIn(anotherDescriptor.m_memorySizeRequirement, anotherDescriptor.m_memoryAlignmentRequirement, anotherDescriptor.m_simultaneousCallRequirement, allOtherFeatureFlags);
}
void mergeAnotherDescriptorIn(sizeint memorySizeRequirement/*=0*/, unsigned memoryAlignmentRequirement,
unsigned simultaneousCallRequirement/*=0*/, unsigned featureRequirement/*=0*/)
{
m_memorySizeRequirement = dMACRO_MAX(m_memorySizeRequirement, memorySizeRequirement);
m_memoryAlignmentRequirement = dMACRO_MAX(m_memoryAlignmentRequirement, memoryAlignmentRequirement);
m_simultaneousCallRequirement = dMACRO_MAX(m_simultaneousCallRequirement, simultaneousCallRequirement);
mergeFeatureFlags(featureRequirement);
}
public:
dxThreadingBase *getrelatedThreading() const { return m_relatedThreading; }
sizeint getMemorySizeRequirement() const { return m_memorySizeRequirement; }
unsigned getMemoryAlignmentRequirement() const { return m_memoryAlignmentRequirement; }
unsigned getSimultaneousCallRequirement() const { return m_simultaneousCallRequirement; }
bool getIsStockCallWaitRequired() const { return getStockCallWaitRequiredFlag(); }
private:
enum
{
FL_STOCK_CALLWAIT_REQUIRED = STOCK_CALLWAIT_REQUIRED,
};
bool getStockCallWaitRequiredFlag() const { return m_featureRequirements.GetFlagsMaskValue(FL_STOCK_CALLWAIT_REQUIRED); }
CSimpleFlags::value_type queryAllFeatureFlags() const { return m_featureRequirements.QueryFlagsAllValues(); }
void mergeFeatureFlags(CSimpleFlags::value_type flagValues) { m_featureRequirements.SignalFlagsMaskValue(flagValues); }
private:
dxThreadingBase *m_relatedThreading;
sizeint m_memorySizeRequirement;
unsigned m_memoryAlignmentRequirement;
unsigned m_simultaneousCallRequirement;
CSimpleFlags m_featureRequirements;
};
static inline
dxResourceRequirementDescriptor *decodeResourceRequirementsID(dResourceRequirementsID requirements)
{
return (dxResourceRequirementDescriptor *)requirements;
}
class dxRequiredResourceContainer:
public dBase
{
public:
dxRequiredResourceContainer():
dBase(),
m_relatedThreading(NULL),
m_stockCallWait(NULL),
m_memoryAllocation()
{
}
~dxRequiredResourceContainer();
bool allocateResources(const dxResourceRequirementDescriptor &requirementDescriptor);
void freeResources();
public:
dxThreadingBase *getThreadingInstance() const { return m_relatedThreading; }
dCallWaitID getStockCallWait() const { return m_stockCallWait; }
void *getMemoryBufferPointer() const { return m_memoryAllocation.getUserAreaPointer(); }
sizeint getMemoryBufferSize() const { return m_memoryAllocation.getUserAreaSize(); }
private:
dxThreadingBase *m_relatedThreading;
dCallWaitID m_stockCallWait;
dxAlignedAllocation m_memoryAllocation;
};
static inline
dxRequiredResourceContainer *decodeResourceContainerID(dResourceContainerID resources)
{
return (dxRequiredResourceContainer *)resources;
}
#endif // #ifndef _ODE__PRIVATE_RESOURCE_CONTRIOL_H_
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