Updating existing JDK code to use InputStream.transferTo() (original) (raw)

Remi Forax forax at univ-mlv.fr
Wed May 13 22:05:23 UTC 2015


On 05/13/2015 11:58 PM, Pavel Rappo wrote:

Remi,

The other reason to have read that returns 0 is if the underlying channel is in non-blocking mode. A read on an InputStream created by Channels.newInputStream on a SelectableChannel may return 0 and the code will go in a loop until the SelectableChannel can read something. while(read() > 0) avoid that issue. It doesn't seem possible as far as I can see. We have 2 methods in java.nio.channels.Channels: newInputStream(java.nio.channels.ReadableByteChannel) newInputStream(java.nio.channels.AsynchronousByteChannel) Neither ReadableByteChannel nor AsynchronousByteChannel is SelectableChannel.

SocketChannel is a subtype of both ReadableByteChannel and SelectableChannel.

Sorry, I might be missing something. Anyway, it would be a misbehaving InputStream as it doesn't conform to the spec.

if the read is non-blocking, it can read 0 byte which is conform to the InputStream.read spec, or am i missing something ?

Rémi



More information about the core-libs-dev mailing list