Multiple ISRs attached to same vector

QNX Newsgroups (Archives) qdn.public.qnxrtp.os
1

Hello,


If N ISRs are attached to the same vector, using InterruptAttach(), are
all N called for each interrupt?
Or does the first to return a sigevent terminate the chain? Are there
any [other] ways to terminate the chain?


Thanks,
-david

2

David Alessio <david.alessio@hsa.hitachi.com> wrote:

Hello,

If N ISRs are attached to the same vector, using InterruptAttach(), are
all N called for each interrupt?
Or does the first to return a sigevent terminate the chain? Are there
any [other] ways to terminate the chain?

Chain doesn’t terminate; all always called in sequence regardless of
return value. No way to prematurely terminate chain.

Cheers,
-RK

–
Robert Krten, PARSE Software Devices +1 613 599 8316.
Realtime Systems Architecture, Consulting and Training at www.parse.com
Email my initials at parse dot com.