PackageReload.cpp File Reference

#include "UObject/PackageReload.h"
#include "UObject/ReferenceChainSearch.h"
#include "UObject/UObjectHash.h"
#include "UObject/GCObject.h"
#include "Misc/AssetRegistryInterface.h"
#include "Misc/ScopedSlowTask.h"
#include "UObject/Package.h"
#include "UObject/Linker.h"
#include "Templates/Casts.h"
#include "UObject/UObjectIterator.h"

Classes
class	FPackageReferencersHelper
struct	PackageReloadInternal::FExistingPackageReference
struct	PackageReloadInternal::FExistingPackageReferences
struct	PackageReloadInternal::FNewPackageReference
struct	PackageReloadInternal::FNewPackageReferences
struct	PackageReloadInternal::FObjectAndPackageIndex
class	PackageReloadInternal::FReplaceObjectReferencesArchive

Namespaces
namespace	PackageReloadInternal

Functions
void	PackageReloadInternal::MarkPackageReplaced (UPackage *InPackage)
void	PackageReloadInternal::ClearPackageReplaced (UPackage *InPackage)
void	PackageReloadInternal::MakeObjectPurgeable (UObject *InObject)
void	PackageReloadInternal::MakePackagePurgeable (UPackage *InPackage)
void	PackageReloadInternal::DumpExternalReferences (UObject *InObject, UPackage *InPackage)
UPackage *	PackageReloadInternal::ValidateAndPreparePackageForReload (UPackage *InExistingPackage)
UPackage *	PackageReloadInternal::LoadReplacementPackage (UPackage *InExistingPackage, const uint32 InLoadFlags)
TSharedPtr< FPackageReloadedEvent >	PackageReloadInternal::GeneratePackageReloadEvent (UPackage *InExistingPackage, UPackage *InNewPackage)
void	PackageReloadInternal::SortPackagesForReload (const FName PackageName, TSet< FName > &ProcessedPackages, TArray< UPackage * > &SortedPackagesToReload, const TMap< FName, UPackage * > &AllPackagesToReload, IAssetRegistryInterface &InAssetRegistry)
void	SortPackagesForReload (TArray< UPackage * > &PackagesToReload)
UPackage *	ReloadPackage (UPackage *InPackageToReload, const uint32 InLoadFlags)
void	ReloadPackages (const TArrayView< FReloadPackageData > &InPackagesToReload, TArray< UPackage * > &OutReloadedPackages, int32 InNumPackagesPerBatch)

Function Documentation

ReloadPackage()

UPackage * ReloadPackage	(	UPackage *	InPackageToReload,
		const uint32	InLoadFlags
	)

Checks to see if a package has been loaded, and if so, unloads it before loading it again. Does nothing if the package isn't currently loaded.

Parameters

InPackageToReload	Pointer to the package to reload (pointer will become invalid if the package is reloaded successfully).
InLoadFlags	Flags controlling loading behavior for the replacement package.

Returns

Reloaded package if successful, null otherwise.

ReloadPackages()

void ReloadPackages	(	const TArrayView< FReloadPackageData > &	InPackagesToReload,
		TArray< UPackage * > &	OutReloadedPackages,
		const int32	InNumPackagesPerBatch = 1
	)

Given an array of packages, checks to see if each package has been loaded, and if so, unloads it before loading it again. Does nothing if the package isn't currently loaded.

Note

This doesn't re-order the loads to make sure that dependencies are re-loaded first, you must handle that in your calling code (

See also

SortPackagesForReload).

Parameters

InPackagesToReload	Array of packages to reload.
OutReloadedPackages	Array of new package pointers. An entry will be present for every item from InPackagesToReload, however they may be null.
InNumPackagesPerBatch	The number of packages to process before running a pointer fix-up and GC. More packages per-batch will process faster, but consume more memory.

SortPackagesForReload()

void SortPackagesForReload

(

TArray< UPackage * > &

PackagesToReload

)

Given an array of packages, sort them so that dependencies will be processed before the packages that depend on them.

Parameters

PackagesToReload

Array of packages to sort. Will be replaced with the sorted data.