Vikram, Perhaps you can consider creating two different AM types for these messages. Thus you can send both of them - since each AMSender has a different queue. I'm bot sure though, that the messages will be sent in the same order you have sent them (although it is very likely)
Arik On Tue, Dec 29, 2009 at 10:16, Paul Johnson <[email protected]> wrote: > Vikram, > > In general, each instance of the AMSenderC component only supports a queue > of 1 message. So just calling send() twice will likely result in some > failure. I haven't actually tried this myself (nor have easy access to the > code right now), so i don't know if the 2nd send will return an error or > what the exact end result would be. > > One way to send two messages is to queue up the first message in the > sendDone() event that is called after the first send() call. You must be > careful to make sure that the sendDone event is for the first message you > sent. > > There are queue data structures available in tinyos 2.x so if you wanted to > create your own component, you may want to start from there. It is also > likely that someone else has implemented this feature (for certain protocols > I'm sure it's been implemented, but I don't know of any generic component > that has been built. You may want to check out the contrib directories in > the cvs checkout. Another option is to look at your platform-specific > implementation of AMSenderC and see how it manages its queue. With some > minor modifications, you could create your own component that supports an > arbitrary queue size. > > -Paul > > > On 12/29/2009 12:57 AM, Vikram vik76 wrote: > > Hello, > > How do I send multiple messages ( say two messages) one after the other? > The send statements in my code are one after the other. > Is there any queuing in tinyos which will take care of this automatically? > Because, when the second message is sent, the first message may still be > using the radio. > > Thanks > Regards > Vikram > > > _______________________________________________ > Tinyos-help mailing > [email protected]https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > > > _______________________________________________ > Tinyos-help mailing list > [email protected] > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > -- Best Regards, Arik Sapojnik [email protected]
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