[jdev] Re: Multiple/parallel file transfers
george.hazan at gmail.com
Fri Mar 25 06:03:07 CST 2005
Fri, 25 Mar 2005 03:16:28 -0800 you wrote:
>> Should I send them one by one, reestablishing the bytestream every time?
JK> Currently yes, this is the only standard way to do it.
JK> There was a JEP to do "Tree Transfer", but it was not well received,
JK> mainly because it doesn't solve the bytestream reestablishment problem.
Hmm.. in fact there're a lot of transfer schemas where there's no need in a
bytestream reestablishment. For example, the one used in the MSN P2P
transfers, when each transfer has its own id, and every packet has a header
with transfer ID, so any number of transfers can act in parallel on the same
channel, either direct or via proxy.
So at least in theory there're no difficulties ;)
JK> I created it as an extension and optimized it beyond what we had
JK> originally discussed. It is documented below as Fast Mode:
JK> Psi has been using this for over a year now without problems.
Thanks for the link, I'll read it.
JK> The same URL above also describes a Multiplex mode, however it is just
JK> an idea, I've never implemented it nor tried pushing it as a standard
Ok, I can easily implement the multi-send support as a sequence of single
transfers, no problems. It would be ugly & slow, but much better than
WMBR, George Hazan (ghazan at postman.ru)
More information about the JDev