CFReadStreamHasBytesAvailable(_:)
Returns a Boolean value that indicates whether a readable stream has data that can be read without blocking.
Declaration
func CFReadStreamHasBytesAvailable(_ stream: CFReadStream!) -> BoolParameters
- stream:
The stream to examine.
Return Value
TRUE if data can be read from stream without blocking, otherwise FALSE. If stream cannot tell if data is available without actually trying to read the data, this function returns TRUE.