You've already forked UnrealEngineUWP
mirror of
https://github.com/izzy2lost/UnrealEngineUWP.git
synced 2026-03-26 18:15:20 -07:00
53f316587b
- Implemented only for the structured cache initially.
- Records are stored as compact binary packages with payloads stored within the record if small enough.
- Records are stored in Records/{Bucket}/{01}/{23}/{456789abcdef0123456789abcdef01234567} based on the hash in the cache key.
- Content that exceeds the size allowed for storage within the record is stored in Content/{01}/{23}/{456789abcdef0123456789abcdef01234567} based on the hash of the content.
- Both records and content are written to disk with their hash as a suffix, and are always checked on load.
- Maximum size of compressed data stored in the package can be configured by MaxRecordSizeKB and MaxValueSizeKB.
- Maintenance of the cache, to delete unused files, has been rewritten and can now scan ~175k files/second on modern hardware, though is limited to 10k files/second in the config to avoid adding too much overhead.
#rb Zousar.Shaker
#preflight 618b75c14a0c609a29204032
#preflight 618bfb5ec717ba4e929b7ac0
#ROBOMERGE-AUTHOR: devin.doucette
#ROBOMERGE-SOURCE: CL 18133085 in //UE5/Release-5.0/... via CL 18133356
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v889-18060218)
#ROBOMERGE[STARSHIP]: UE5-Main
[CL 18133430 by devin doucette in ue5-release-engine-test branch]
44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
|
|
|
|
#pragma once
|
|
|
|
#include "Features/IModularFeature.h"
|
|
#include "UObject/NameTypes.h"
|
|
|
|
namespace UE::DerivedData
|
|
{
|
|
|
|
/**
|
|
* A cache store may register an instance of this interface to take part in cache maintenance.
|
|
*
|
|
* As an example, a filesystem cache might register a maintainer that scans for and deletes stale
|
|
* files within its cache directory. Boosting the priority removes any sleep between file scans.
|
|
*
|
|
* An example consumer is the DDCCleanup commandlet which uses this to boost priority and wait on
|
|
* the completion of maintenance by cache stores.
|
|
*/
|
|
class ICacheStoreMaintainer : public IModularFeature
|
|
{
|
|
public:
|
|
static inline const FLazyName FeatureName{"CacheStoreMaintainer"};
|
|
|
|
/**
|
|
* True when maintenance is not active.
|
|
*
|
|
* This must return true eventually because it is called to wait for maintenance.
|
|
*/
|
|
virtual bool IsIdle() const = 0;
|
|
|
|
/**
|
|
* Boost the priority of the active maintenance operation.
|
|
*
|
|
* This is expected to remove any delays, or otherwise allow the active maintenance operation
|
|
* to complete more quickly. This is called before waiting for maintenance to be idle.
|
|
*/
|
|
virtual void BoostPriority()
|
|
{
|
|
}
|
|
};
|
|
|
|
} // UE::DerivedData
|