FS_PeekNamedPipe

FS_PeekNamedPipe(
 PIOREQ pir
 )
 

This function is used to preview the named pipe's data without removing it. The named pipe's data is copied into a buffer for previewing. This routine handles the Win32 function: PeekNamedPipe().

ir_rh

Supplies handle to local NP FS or network resource that contains the named pipe.

ir_fh

Supplies FSD file handle of an opened named pipe.

ir_sfn

Supplies system file number.

ir_data

Supplies a pointer to the data buffer to read into.

ir_length

Supplies number of bytes of data to read.

ir_error	Returns status of the operation ( 0 if no error, errorcode otherwise ).
ir_length	Returns number of bytes actually read.
ir_size	Returns number of bytes of data that were available to read.
ir_msglen	Returns number of bytes of data left in this message. This will be zero for a byte-stream pipe.
ir_status	Returns the current state of the pipe.

Current Pipe State Values:
Value	Meaning
NP_DISCONNECTED	The pipe has been create or disconnected, but is not yet connected.
NP_LISTENING	The pipe has been connected, but has not yet been opened by the client.
NP_CONNECTED	The pipe has been opened by the client.
NP_CLOSING	Either the client has closed and the server has not disconnected, or the server has closed and the client has not closed the pipe.