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  3. FBackgroundHttpFileHashHelper

FBackgroundHttpFileHashHelper

Helper that handles generating unique hashed file paths to use store to store BackgroundHTTP work once completed.

API > API/Runtime > API/Runtime/BackgroundHTTPFileHash

References

   
Module BackgroundHTTPFileHash
Header /Engine/Source/Runtime/Online/BackgroundHTTPFileHash/Public/BackgroundHttpFileHashHelper.h
Include #include "BackgroundHttpFileHashHelper.h"

Syntax

class FBackgroundHttpFileHashHelper

Remarks

Helper that handles generating unique hashed file paths to use store to store BackgroundHTTP work once completed. Can be saved and loaded to/from disk to handle persistence across session when background work is compelted without any usefull program state. NOTE: This is in it's own separate module as some platforms (IOS, etc.) need to include this functionality in ApplicationCore and thus fully adding a dependency to those modules on BackgroundHTTP would not work

Constructors

  Type Name Description
Public function    

Functions

  Type Name Description
Public function void Deletes any URLMapping that doesn't have a corresponding Temp file actually on disk.
Public function Const const FString *

FindMappedURLForTempFilename ( const FString& TempFilename
)

 Looks for a URL mapped to the supplied TempFilename. Nullptr returned if one isn't found.
Public function const FString & Looks for a temp filename mapping for the given URL. If one isn't found a new one is generated and returned.
Public function Const const FString * Looks for a temp filename mapping for the given URL. If one isn't found returns nullptr and does NOT generate one.
Public function Static FString

GetFullPathOfTempFilename ( const FString& TempFilename
)

 Helper function that returns a full path representation of hte given TempFilename.
Public function Static const FString & Helper function that returns the file extension used by our BackgroundHTTP temp files.
Public function Static const FString & Get our base directory used to store Temp files.
Public function bool

InitFromString ( const FString& StringIn
)

 Sets the values of this FBackgroundHttpFileHashHelper from the string representation Returns if the parse was successful or not
Public function void Handles loading URL Mapping data from disk. No operation if data has previously been loaded.
Public function void

RemoveURLMapping ( const FString& URL
)

 Removes URL mapping.
Public function void Handles saving URL Mapping data to disk. No operation if data isn't dirty.
Public function Const FString Creates an FString representation of this FBackgroundHttpFileHashHelper's URL mappings. Used for serializing to/from disk.

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