Open System Services System Calls Reference Manual (G06.28+, H06.05+)

System Functions (s and S) spt_sigaction(2)
ERRORS
If one of these conditions occurs, the spt_sigaction() function sets errno to [EINVAL]:
[EINVAL] One of the following conditions exists:
— The sig parameter is not a valid signal number.
— An attempt was made to ignore or supply a signal-
catching function for the SIGKILL, SIGSTOP,or
SIGABEND signal.
— The signal is not supported in pthreads.
RELATED INFORMATION
Functions: pthread_kill(2), pthread_sigmask(2), sigaction(2), spt_pause(2), spt_signal(2),
spt_sigsuspend(2).
STANDARDS CONFORMANCE
The spthread.h header file is an HP extension and an HP exception to the IEEE Std 1003.1c-
1995, POSIX System Application Program Interface.
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