Whoa, hang on there. You can approximate this without "hanging requests" if your client just checks back every so often to pick up notifications. If you need instantaneous event-driven kind of behavior, Thrift can't help you right now, but most people don't really need that.
On Mon, Oct 25, 2010 at 4:10 PM, Mark Slee <ms...@facebook.com> wrote: > Well, Thrift *is* offering you a cross-language server. =) > > A cross-language bi-directional messaging protocol+implementation, however, > is significantly more complicated (introduces need for all kinds of tricky > things like muxing/windowing/interleaving, etc. -- not just on the server > side code but also on the client, which now has to be ready to receive > multiple types of data at any time, and have a mechanism for client > application code to either poll for these events or receive them > synchronously in a thread-safe way). > > -----Original Message----- > From: Eugen Rata [mailto:eugen.r...@gmail.com] > Sent: Monday, October 25, 2010 4:04 PM > To: thrift-dev@incubator.apache.org > Subject: RE: Broadcasting > > Hi Mark, > > Thx for feedback. > It looks like I'll have to remain with WCF, heh, I wanted so much to have a > cross-language server. > > \Eugen > > -----Original Message----- > From: Mark Slee [mailto:ms...@facebook.com] > Sent: Monday, October 25, 2010 3:57 PM > To: thrift-dev@incubator.apache.org > Subject: RE: Broadcasting > > Hi Eugene, > > Thrift doesn't support arbitrary message broadcasting. There aren't really > any elegant solutions for this. The two closest options available are: > > (1) Make your clients also be servers, use the "oneway" modifier to have > the > server connect to client and send an RPC for which there is no reply > > (2) Use a COMET-style hanging request from the client to server with a long > timeout -- this is going to be a mess and require nasty server-side > threading > > Neither of these are going to be particularly fun to implement. The Thrift > server implementations and network protocol are designed assuming that > clients initiate requests to servers, and servers only speak in direct > response to client messages. > > Cheers, > mcslee > > > -----Original Message----- > From: Eugen Rata [mailto:eugen.r...@gmail.com] > Sent: Monday, October 25, 2010 11:31 AM > To: thrift-dev@incubator.apache.org > Subject: Broadcasting > > Hi, > > > > Can Thrift be used to broadcast some type of info for some clients > regarding > the info they requested? > > Like, client would subscribe to a news channel, server would keep the > client > id or something, and then when at the server side some news appears to be > ok > for the client, the server would send them. > > > > In WCF I'm using Callbacks for this, how can I do this in Thrift? > > > > Thx > > \Eugen > >
