Inheritance diagram for ZStreamR_Tee:
Public Member Functions
|virtual size_t||Imp_CountReadable ()|
|Returns the number of bytes guaranteed to be readable without blocking. |
Returns the number of bytes guaranteed to be readable without blocking.
If the stream does not or cannot know this information it should return zero. A zero return thus does not mean no data is available, simply that a subsequent Read or Skip may block indefinitely.
Reimplemented from ZStreamR.