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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 implementations
* Copyright (c) 2017-2019 Oleh Derevenko, odar@eleks.com (change all "a" to "e")
*/
#include <ode/common.h>
#include <ode/cooperative.h>
#include "config.h"
#include "resource_control.h"
#include "simple_cooperative.h"
//////////////////////////////////////////////////////////////////////////
// dxResourceRequirementDescriptor();
dxResourceRequirementDescriptor::~dxResourceRequirementDescriptor()
{
// Do nothing
}
//////////////////////////////////////////////////////////////////////////
// dxRequiredResourceContainer
dxRequiredResourceContainer::~dxRequiredResourceContainer()
{
freeResources();
}
bool dxRequiredResourceContainer::allocateResources(const dxResourceRequirementDescriptor &requirementDescriptor)
{
bool result = false;
bool bufferAllocated = false;
do
{
sizeint memorySizeRequirement = requirementDescriptor.getMemorySizeRequirement();
if (memorySizeRequirement != 0)
{
unsigned memoryAlignmentRequirement = requirementDescriptor.getMemoryAlignmentRequirement();
void *bufferAllocated = m_memoryAllocation.allocAligned(memorySizeRequirement, memoryAlignmentRequirement);
if (bufferAllocated == NULL)
{
break;
}
}
bufferAllocated = true;
dxThreadingBase *relatedThreading = requirementDescriptor.getrelatedThreading();
dIASSERT(relatedThreading != NULL);
unsigned simultaneousCallRequirement = requirementDescriptor.getSimultaneousCallRequirement();
if (simultaneousCallRequirement != 0)
{
if (!relatedThreading->PreallocateResourcesForThreadedCalls(simultaneousCallRequirement))
{
break;
}
}
dCallWaitID stockCallWait = NULL;
if (requirementDescriptor.getIsStockCallWaitRequired())
{
stockCallWait = relatedThreading->AllocateOrRetrieveStockCallWaitID();
if (stockCallWait == NULL)
{
break;
}
}
m_relatedThreading = relatedThreading;
m_stockCallWait = stockCallWait;
result = true;
}
while (false);
if (!result)
{
if (bufferAllocated)
{
m_memoryAllocation.freeAllocation();
}
}
return result;
}
void dxRequiredResourceContainer::freeResources()
{
if (m_relatedThreading != NULL)
{
m_relatedThreading = NULL;
m_stockCallWait = NULL;
m_memoryAllocation.freeAllocation();
}
else
{
dIASSERT(m_stockCallWait == NULL);
dIASSERT(m_memoryAllocation.getUserAreaPointer() == NULL);
}
}
//////////////////////////////////////////////////////////////////////////
// Public interface functions
static inline
dResourceRequirementsID encodeResourceRequirementsID(dxResourceRequirementDescriptor *requirementsDescriptor)
{
return (dResourceRequirementsID)requirementsDescriptor;
}
/*extern ODE_API */
dResourceRequirementsID dResourceRequirementsCreate(dCooperativeID cooperative)
{
dAASSERT(cooperative != NULL);
dxSimpleCooperative *cooperativeInstance = decodeCooperativeID(cooperative);
dxThreadingBase *threading = cooperativeInstance->getRelatedThreading();
dxResourceRequirementDescriptor *requirementsDescriptor = new dxResourceRequirementDescriptor(threading);
dResourceRequirementsID result = encodeResourceRequirementsID(requirementsDescriptor);
return result;
}
/*extern ODE_API */
void dResourceRequirementsDestroy(dResourceRequirementsID requirements)
{
dxResourceRequirementDescriptor *requirementsDescriptor = decodeResourceRequirementsID(requirements);
if (requirementsDescriptor != NULL)
{
delete requirementsDescriptor;
}
}
/*extern ODE_API */
dResourceRequirementsID dResourceRequirementsClone(/*const */dResourceRequirementsID requirements)
{
dAASSERT(requirements != NULL);
dxResourceRequirementDescriptor *requirementsDescriptor = decodeResourceRequirementsID(requirements);
dxResourceRequirementDescriptor *descriptorClone = new dxResourceRequirementDescriptor(*requirementsDescriptor);
dResourceRequirementsID result = encodeResourceRequirementsID(descriptorClone);
return result;
}
/*extern ODE_API */
void dResourceRequirementsMergeIn(dResourceRequirementsID summaryRequirements, /*const */dResourceRequirementsID extraRequirements)
{
dAASSERT(summaryRequirements != NULL);
dAASSERT(extraRequirements != NULL);
dxResourceRequirementDescriptor *summaryDescriptor = decodeResourceRequirementsID(summaryRequirements);
dxResourceRequirementDescriptor *extraDescriptor = decodeResourceRequirementsID(extraRequirements);
summaryDescriptor->mergeAnotherDescriptorIn(*extraDescriptor);
}
//////////////////////////////////////////////////////////////////////////
static inline
dResourceContainerID encodeResourceContainerID(dxRequiredResourceContainer *containerInstance)
{
return (dResourceContainerID)containerInstance;
}
/*extern ODE_API */
dResourceContainerID dResourceContainerAcquire(/*const */dResourceRequirementsID requirements)
{
dAASSERT(requirements != NULL);
dResourceContainerID result = NULL;
bool allocationSucceeded = false;
dxRequiredResourceContainer *containerInstance;
bool containerAllocated = false;
dxResourceRequirementDescriptor *requirementsInstance = decodeResourceRequirementsID(requirements);
do
{
containerInstance = new dxRequiredResourceContainer();
if (containerInstance == NULL)
{
break;
}
containerAllocated = true;
if (!containerInstance->allocateResources(*requirementsInstance))
{
break;
}
result = encodeResourceContainerID(containerInstance);
allocationSucceeded = true;
}
while (false);
if (!allocationSucceeded)
{
if (containerAllocated)
{
delete containerInstance;
}
}
return result;
}
/*extern ODE_API */
void dResourceContainerDestroy(dResourceContainerID resources)
{
dxRequiredResourceContainer *containerInstance = decodeResourceContainerID(resources);
if (containerInstance != NULL)
{
delete containerInstance;
}
}
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