Hello:
I'm trying to do Async I/O using O_ASYNC on sockets and handling
SIGIO. My testing shows that even if I unblock SIGIO at the begining of the
handler the kernel only delivers one level of nested signals. Ie: while the
first SIGIO is being handled a second might arrive, but a third delivered
signal does not reach the process.
The same happens if I catch the signals with sigaction and specify
SA_NODEFER. Same program on Linux can handle up to 23 nested signals.
Is this a known behavior? Is there any way to change it?
Thanks in advance for any pointer.
Fernando P. Schapachnik
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