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I was playing around with aio_read() and ran into some seemingly aberrant
behavior, although not with aio_read() itself, but the resulting signal.
Within struct aiocb I was setting:

aio_sigevent.sigev_notify = SIGEV_SIGNAL;
aio_sigevent.sigev_value.sigval_int = 42;
iocb.aio_sigevent.sigev_signo = SIGUSR1;

Then in the sigaction structure:
sa_flags = SA_SIGINFO;

Upon completion of the requested read, a signal is sent.  Within the
siginfo structure, si_signo is set properly.

However, si_value.sigval_int is zero.  Is this just not implemented
completely yet or am I missing something?

Tony Arcieri


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