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6335a77f9e
* Enable Mass Concurrent Reserve feature for general runtime * CVars added to revert back to previous implementation and to control memory usage of entity lookup datastructure - "Mass.ConcurrentReserve.Enable" - "Mass.ConcurrentReserve.MaxEntityCount" - "Mass.ConcurrentReserve.EntitiesPerPage" * Allows deprecation/removal/cleanup of single threaded implementation #jira UE-220885 #rb Mieszko.Zielinski [CL 35287298 by logan buchy in ue5-main branch]
111 lines
3.4 KiB
C++
111 lines
3.4 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "MassEntitySubsystem.h"
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#include "HAL/IConsoleManager.h"
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#include UE_INLINE_GENERATED_CPP_BY_NAME(MassEntitySubsystem)
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namespace UE::Mass::Private
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{
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static bool bEnableMassConcurrentReserveRuntime = true;
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static int32 ConcurrentReserveMaxEntityCount = 1 << 27;
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static int32 ConcurrentReserveMaxEntitiesPerPage = 1 << 16;
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namespace
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{
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FAutoConsoleVariableRef CVars[] = {
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{
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TEXT("Mass.ConcurrentReserve.Enable"),
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bEnableMassConcurrentReserveRuntime,
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TEXT("Enable Mass's concurrent reserve feature in runtime"),
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ECVF_Default
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},
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{
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TEXT("Mass.ConcurrentReserve.MaxEntityCount"),
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ConcurrentReserveMaxEntityCount,
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TEXT("Set maximum number of permissible entities. Must be power of 2."),
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ECVF_Default
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},
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{
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TEXT("Mass.ConcurrentReserve.EntitiesPerPage"),
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ConcurrentReserveMaxEntitiesPerPage,
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TEXT("Set number of entities per page. Must be power of 2. Larger reduces fixed memory overhead of FEntityData page lookup but requires bigger contiguous memory blocks per page"),
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ECVF_Default
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}
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};
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}
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}
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//////////////////////////////////////////////////////////////////////
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// UMassEntitySubsystem
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UMassEntitySubsystem::UMassEntitySubsystem()
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: EntityManager(MakeShareable(new FMassEntityManager(this)))
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{
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}
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void UMassEntitySubsystem::GetResourceSizeEx(FResourceSizeEx& CumulativeResourceSize)
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{
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Super::GetResourceSizeEx(CumulativeResourceSize);
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EntityManager->GetResourceSizeEx(CumulativeResourceSize);
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}
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void UMassEntitySubsystem::Initialize(FSubsystemCollectionBase& Collection)
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{
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Super::Initialize(Collection);
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FMassEntityManagerStorageInitParams InitializationParams;
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if (UE::Mass::Private::bEnableMassConcurrentReserveRuntime)
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{
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InitializationParams.Emplace<FMassEntityManager_InitParams_Concurrent>(
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FMassEntityManager_InitParams_Concurrent
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{
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.MaxEntityCount = static_cast<uint32>(UE::Mass::Private::ConcurrentReserveMaxEntityCount),
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.MaxEntitiesPerPage = static_cast<uint32>(UE::Mass::Private::ConcurrentReserveMaxEntitiesPerPage)
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});
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}
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else
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{
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InitializationParams.Emplace<FMassEntityManager_InitParams_SingleThreaded>();
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}
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EntityManager->Initialize(InitializationParams);
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HandleLateCreation();
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}
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void UMassEntitySubsystem::PostInitialize()
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{
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Super::PostInitialize();
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// this needs to be done after all the subsystems have been initialized since some processors might want to access
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// them during processors' initialization
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EntityManager->PostInitialize();
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}
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void UMassEntitySubsystem::Deinitialize()
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{
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EntityManager->Deinitialize();
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EntityManager.Reset();
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Super::Deinitialize();
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}
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#if WITH_MASSENTITY_DEBUG
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//////////////////////////////////////////////////////////////////////
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// Debug commands
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FAutoConsoleCommandWithWorldArgsAndOutputDevice GPrintArchetypesCmd(
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TEXT("EntityManager.PrintArchetypes"),
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TEXT("Prints information about all archetypes in the current world"),
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FConsoleCommandWithWorldArgsAndOutputDeviceDelegate::CreateStatic(
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[](const TArray<FString>& Params, UWorld* World, FOutputDevice& Ar)
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{
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if (const UMassEntitySubsystem* EntitySubsystem = World ? World->GetSubsystem<UMassEntitySubsystem>() : nullptr)
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{
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EntitySubsystem->GetEntityManager().DebugPrintArchetypes(Ar);
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}
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else
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{
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Ar.Logf(ELogVerbosity::Error, TEXT("Failed to find Entity Subsystem for world %s"), *GetPathNameSafe(World));
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}
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}));
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#endif // WITH_MASSENTITY_DEBUG
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