Messages in this thread | | | Date | Fri, 22 Jun 2001 15:23:54 -0700 (PDT) | From | Davide Libenzi <> | Subject | Re: About I/O callbacks ... |
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On 22-Jun-2001 Andi Kleen wrote: > On Fri, Jun 22, 2001 at 08:55:00AM -0700, Davide Libenzi wrote: >> I know about rt signals and SIGIO :) but I can't see how You can queue >> signals : >> >> current->sig->action[..] >> >> The action field is an array so if more than one I/O notification is fired >> before the SIGIO is delivered, You'll deliver only the last one. >> Am I missing something ? > > Yes. Realtime signals (>=SIGRTMIN) get queued in current->pending.
An issue with rt signal is the limited number of this resource that will force you to have a mapping fd ==> coroutine but this should not be a big problem using hash( fd ) = fd
- Davide
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