3 Jan
2017
3 Jan
'17
10:47 p.m.
Derek Fawcus <dfawcus+lists-tuhs(a)employees.org> wrote:
FWIW, on 10.10.5 [1] this gives essentially the same
result as the prior program,
the signal handler seeing the same sign extended 24 bit value:
$ ./posix2
received SIGCHLD (20), si_pid: 2281 si_status: -6946094 si_code: 1
SIGCHLD: si_status in struct siginfo should be 1234567890 (0x499602d2) but is -6946094
(0xff9602d2)
ret: 0 si_pid: 2281 si_status: -6946094 si_code: 1
si_status in struct siginfo should be 1234567890 (0x499602d2) but is -6946094
(0xff9602d2)
OK, then the main change during the past 8 years was that Apple now includes
the siginfo structure in sys/wait.h and that si_pid and si_code are now filled
in.
Mind, one should probably assign the handler to
sa.sa_sigaction, as someone
could implement the struct w/o both fields in a union.
Done - thank you....
Jörg
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