C# 클래스 GS.Common.IO.OverlappedStreamUnbuffered

Overlapped Unbuffered file operations

상속: OverlappedStream

공개 메소드들

메소드	설명
BeginRead ( IntPtr pBuffer, System.UInt64 fileOffset, UInt32 numberOfBytesToRead, AsyncCallback callback, object state ) : IAsyncResult	Begins an asynchronous unbuffered read operation
BeginReadScatter ( IntPtr segments, System.UInt64 fileOffset, AsyncCallback callback, object state ) : IAsyncResult	Reads data from a file and stores it in an array of buffers
BeginWrite ( IntPtr pBuffer, System.UInt64 fileOffset, UInt32 numberOfBytesToWrite, AsyncCallback callback, object state ) : IAsyncResult	Begins an asynchronous unbuffered write operation
BeginWriteGather ( IntPtr segments, System.UInt64 fileOffset, AsyncCallback callback, object state ) : IAsyncResult	Retrieves data from an array of buffers and writes the data to a file.
OverlappedStreamUnbuffered ( string path, FileMode mode, FileAccess access, FileShare share, UnbufferedFileOptions options, FileAttributes attributes = FileAttributes.Normal ) : System	Initializes a new instance of the OverlappedStreamUnbuffered class

메소드	설명
OverlappedStreamUnbuffered ( ) : System

Begins an asynchronous unbuffered read operation

public BeginRead ( IntPtr pBuffer, System.UInt64 fileOffset, UInt32 numberOfBytesToRead, AsyncCallback callback, object state ) : IAsyncResult
pBuffer	System.IntPtr	The unmanaged buffer to read the data into. /// Buffer should be aligned in memory to device sector size boundary. /// Buffer should not be deallocated or moved until operation is completed.
fileOffset	System.UInt64	File pointer
numberOfBytesToRead	System.UInt32	The maximum number of bytes to read.
callback	AsyncCallback	An optional asynchronous callback, to be called when the read is complete.
state	object	A user-provided object that distinguishes this particular asynchronous read request from other requests.
리턴	IAsyncResult

Reads data from a file and stores it in an array of buffers

public BeginReadScatter ( IntPtr segments, System.UInt64 fileOffset, AsyncCallback callback, object state ) : IAsyncResult
segments	System.IntPtr	Array of pointers to data buffers. /// Each buffer must be at least the size of a system memory page and must be aligned /// on a system memory page size boundary . /// The system reads one system memory page of data into each buffer. /// Buffers should not be deallocated or moved until operation is completed.
fileOffset	System.UInt64	File pointer
callback	AsyncCallback	An optional asynchronous callback, to be called when the read is complete.
state	object	A user-provided object that distinguishes this particular asynchronous read request from other requests.
리턴	IAsyncResult

Begins an asynchronous unbuffered write operation

public BeginWrite ( IntPtr pBuffer, System.UInt64 fileOffset, UInt32 numberOfBytesToWrite, AsyncCallback callback, object state ) : IAsyncResult
pBuffer	System.IntPtr	The unmanaged buffer to read the data from. /// Buffer should be aligned in memory to device sector size boundary. /// Buffer should not be deallocated or moved until operation is completed.
fileOffset	System.UInt64	File pointer
numberOfBytesToWrite	System.UInt32	The maximum number of bytes to write.
callback	AsyncCallback	An optional asynchronous callback, to be called when the write is complete.
state	object	A user-provided object that distinguishes this particular asynchronous write request from other requests.
리턴	IAsyncResult

Retrieves data from an array of buffers and writes the data to a file.

public BeginWriteGather ( IntPtr segments, System.UInt64 fileOffset, AsyncCallback callback, object state ) : IAsyncResult
segments	System.IntPtr	Array of pointers to data buffers. /// Each buffer must be at least the size of a system memory page and must be aligned /// on a system memory page size boundary . /// The system writes one system memory page of data into each buffer. /// Buffers should not be deallocated or moved until operation is completed.
fileOffset	System.UInt64	File pointer
callback	AsyncCallback	An optional asynchronous callback, to be called when the write is complete.
state	object	A user-provided object that distinguishes this particular asynchronous write request from other requests.
리턴	IAsyncResult

Initializes a new instance of the OverlappedStreamUnbuffered class

public OverlappedStreamUnbuffered ( string path, FileMode mode, FileAccess access, FileShare share, UnbufferedFileOptions options, FileAttributes attributes = FileAttributes.Normal ) : System
path	string	A relative or absolute path for the file. UNC long path file names are supported.
mode	FileMode	A constant that determines how to open or create the file.
access	FileAccess	A constant that determines how the file can be accessed.
share	FileShare	A constant that determines how the file will be shared by processes.
options	UnbufferedFileOptions	A constant that specifies additional file options.
attributes	FileAttributes	A constant that specifies file attributes which are set when file is created.
리턴	System