thank you Laurens Van Houtven. This was helpful and i am moving onto json-rpc for my projcet
On Thu, May 23, 2013 at 2:03 PM, Laurens Van Houtven <_...@lvh.io> wrote: > On Thu, May 23, 2013 at 9:46 AM, abhishek unnikrishnan < > thecreator...@gmail.com> wrote: > >> hi guys >> > > Hi Abhishek! > > >> i'm new to twisted and asynchronous programming . i have created a rpc >> server using twisted and xmlrpc packages . i wanted to know what will >> happen if two or more clients give an rpc call at the same time. how will >> the server handle this situation. >> > > The tricky part is in the "at the same time". Twisted's reactor thread > only does one thing at a time, and that's okay: both connections get > accepted and some data gets read from them (and eventually written to > them). The important part is that you do these things non-blockingly (or, > synonymously, asynchronously): it's okay to only do one thing at a time as > long as each thing you do takes very little time. The second connection > doesn't have to wait long before the connection gets opened and data gets > read, because the operations that happen before it don't take long. > > This pattern repeats throughout asynchronous programming: it's okay to > only decode one bit of JSON at a time, as long as doing that doesn't take a > long time (i.e. block), preventing anything else from happening in the > immediate future. > > Does that clarify things? > > and also wanted to know is there a way for the server to call the client >> in an rpc scenario . >> > > That depends on your RPC protocol. Many allow this (often called peer to > peer), many are explicitly client-server and only allow one-way calls. Even > protocols that do support full-duplex communication don't necessarily have > clients that can take method calls very often. > > AMP, my personal favorite, explicitly supports two-way RPC. It comes with > twisted, and you can read about it here: http://amp-protocol.net/ > > Alternatively, I think JSON-RPC is full-duplex too. > > > cheers > lvh > > _______________________________________________ > Twisted-Python mailing list > Twisted-Python@twistedmatrix.com > http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python > >
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