tcp/src/common/StreamRd.i3


 Copyright 1999-2003 John D. Polstra.
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INTERFACE StreamRd;
A StreamRd.T, or stream reader, is a subtype of Rd.T which represents a long-running input stream such as a pipe or a TCP connection. The implementation of a stream reader periodically resets certain internal variables in order to keep them from overflowing. In general, Rd.Index() will return incorrect results for stream readers. But the number of bytes transferred can be obtained by calling ByteCount().

IMPORT Rd;

TYPE
  T <: Rd.T;

PROCEDURE ByteCount(srd: T): LONGREAL;
Return the number of bytes transferred so far.

END StreamRd.