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authorsanine <sanine.not@pm.me>2022-10-01 20:59:36 -0500
committersanine <sanine.not@pm.me>2022-10-01 20:59:36 -0500
commitc5fc66ee58f2c60f2d226868bb1cf5b91badaf53 (patch)
tree277dd280daf10bf77013236b8edfa5f88708c7e0 /libs/ode-0.16.1/ode/src/resource_control.cpp
parent1cf9cc3408af7008451f9133fb95af66a9697d15 (diff)
add ode
Diffstat (limited to 'libs/ode-0.16.1/ode/src/resource_control.cpp')
-rw-r--r--libs/ode-0.16.1/ode/src/resource_control.cpp259
1 files changed, 259 insertions, 0 deletions
diff --git a/libs/ode-0.16.1/ode/src/resource_control.cpp b/libs/ode-0.16.1/ode/src/resource_control.cpp
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+++ b/libs/ode-0.16.1/ode/src/resource_control.cpp
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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;
+ }
+}
+