hi benny, I see what u say but this issue will also raise with using regular async events. there should be ability to Cancel the request and this can be implemented too. however, I am not sure this will happen as once the send is schedule it should be completed with notify back to the sender. the cancel should be done only when destroying the underline transport. is there anyway where u implement the PENDING state on send/sendto (i mean other os.) nir On Thu, Dec 10, 2009 at 7:56 AM, Benny Prijono <bennylp at teluu.com> wrote: > On Tue, Dec 8, 2009 at 8:55 PM, nir elkayam <nir.elkayam at gmail.com> wrote: > > hi all symbian users, > > > > there is the problem in using the blocking i/o operations in symbian. > > there is a ways to allow async event without User::WaitForRequest, > > in the following example, the User::WaitForRequest doesn't do the job and > so > > they start another active scheduler. > > > > > http://wiki.forum.nokia.com/index.php/Reading_IMEI_in_3rd_edition_-Synchronously > > > > maybe this can be a middle way to do the send operation that from time to > > time stuck the stack > > > > http://trac.pjsip.org/repos/ticket/987 > > > > any thoughts? > > > > So the trick allows program execution to block at > CActiveScheduler::Start(), similar to User::WaitForRequest(), but > unlike User::WaitForRequest(), it allows other pending requests to > complete while we're waiting for the blocking request to complete? If > this is correct then that sounds like a good trick, thanks for > sharing. > > Although I'm concerned, that this could cause other active objects to > be called in an unexpected state. For example, while waiting for > Send() to complete, a timer elapsed which destroys a transaction, and > when Send() finally returns, the transaction is no longer there. What > do you think? > > Cheers > Benny > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org > -- ??? ?????? ??: 050-3930056 nir.elkayam at gmail.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20091210/50b3566d/attachment.html>
