C# Class NLog.Internal.FileAppenders.MutexMultiProcessFileAppender

Provides a multiprocess-safe atomic file appends while keeping the files open.

On Unix you can get all the appends to be atomic, even when multiple processes are trying to write to the same file, because setting the file pointer to the end of the file and appending can be made one operation. On Win32 we need to maintain some synchronization between processes (global named mutex is used for this)

Inheritance: BaseFileAppender

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Public Properties

Property	Type	Description
TheFactory	IFileAppenderFactory

Public Methods

Method	Description
Close ( ) : void	Closes this instance.
Flush ( ) : void	Flushes this instance.
GetFileCreationTimeUtc ( ) : DateTime?	Gets the creation time for a file associated with the appender. The time returned is in Coordinated Universal Time [UTC] standard.
GetFileLastWriteTimeUtc ( ) : DateTime?	Gets the last time the file associated with the appeander is written. The time returned is in Coordinated Universal Time [UTC] standard.
GetFileLength ( ) : long?	Gets the length in bytes of the file associated with the appeander.
MutexMultiProcessFileAppender ( string fileName, ICreateFileParameters parameters ) : NLog.Common	Initializes a new instance of the MutexMultiProcessFileAppender class.
Write ( byte bytes ) : void	Writes the specified bytes.

Protected Methods

Method	Description
CreateArchiveMutex ( ) : Mutex	Creates a mutually-exclusive lock for archiving files.

Private Methods

Method	Description
GetFileCharacteristics ( ) : FileCharacteristics

Method Details

Close() public method

Closes this instance.

public Close ( ) : void
return	void

CreateArchiveMutex() protected method

Creates a mutually-exclusive lock for archiving files.

protected CreateArchiveMutex ( ) : Mutex
return	System.Threading.Mutex

Flush() public method

Flushes this instance.

public Flush ( ) : void
return	void

GetFileCreationTimeUtc() public method

Gets the creation time for a file associated with the appender. The time returned is in Coordinated Universal Time [UTC] standard.

public GetFileCreationTimeUtc ( ) : DateTime?
return	DateTime?

GetFileLastWriteTimeUtc() public method

Gets the last time the file associated with the appeander is written. The time returned is in Coordinated Universal Time [UTC] standard.

public GetFileLastWriteTimeUtc ( ) : DateTime?
return	DateTime?

GetFileLength() public method

Gets the length in bytes of the file associated with the appeander.

public GetFileLength ( ) : long?
return	long?

MutexMultiProcessFileAppender() public method

Initializes a new instance of the MutexMultiProcessFileAppender class.

public MutexMultiProcessFileAppender ( string fileName, ICreateFileParameters parameters ) : NLog.Common
fileName	string	Name of the file.
parameters	ICreateFileParameters	The parameters.
return	NLog.Common

Write() public method

Writes the specified bytes.

public Write ( byte bytes ) : void
bytes	byte	The bytes to be written.
return	void

Property Details

TheFactory public_oe static_oe property

public static IFileAppenderFactory TheFactory
return	IFileAppenderFactory