xPCFileStream Class

Access xPCFileStream objects


public class xPCFileStream : IDisposable


Namespace: MathWorks.xPCTarget.FrameWork

Syntax Language: C#

public class xPCFileStream : IDisposable initializes xPCFileStream objects. These objects expose the file stream around a file.


Do not use this .NET API class. Support for this class relies on support for the .NET API, which will be removed in a future release.

There are the following limitations:

  • You can have at most 128 files open on the target computer at the same time.

  • The largest single file that you can create on the target computer is 4 GB.

  • A fully qualified folder name can have a maximum of 248 characters, including the drive letter, colon, and backslash.

  • A fully qualified file name in the operating system on the target computer can have a maximum of 260 characters. If the file name is longer than eight-dot-three format (eight character file name, period, three character extension), the operating system represents the file name in truncated form (for example, six characters followed by '~1'). MATLAB commands can access the file using the fully qualified file name or the truncated representation of the name. Some block parameters, such as the Scope block filename parameter, require 8.3 format for the file name.

  • Do not write data to the private folder on your target computer. It is reserved for Simulink® Real-Time™ internal use.


xPCFileStreamConstruct new instance of xPCFileStream class


xPCFileStream.CloseClose current stream
xPCFileStream.ReadRead block of bytes from stream and write data to buffer
xPCFileStream.WriteWrite block of bytes to file stream
xPCFileStream.WriteByteWrite byte to current position in file stream


PropertyC# Declaration SyntaxDescriptionException


public long Length {get;}

Get length of file stream.

xPCException — When problem occurs, query xPCException object Reason property.

Introduced in R2011b