psignal(3C)                    DG/UX R4.11MU05                   psignal(3C)


NAME
       psignal, psiginfo - system signal messages

SYNOPSIS
       #include <siginfo.h>

       void psignal (int sig, const char *s);

       void psiginfo (siginfot *pinfo, char *s);

DESCRIPTION
       psignal and psiginfo produce messages on the standard error output
       describing a signal.  sig is a signal that may have been passed as
       the first argument to a signal handler.  pinfo is a pointer to a
       siginfo structure that may have been passed as the second argument to
       an enhanced signal handler [see sigaction(2)].  The argument string s
       is printed first, then a colon and a blank, then the message and a
       newline.

   Considerations for Threads Programming
                     +---------+-----------------------------+
                     |         |                      async- |
                     |function | reentrant   cancel   cancel |
                     |         |             point     safe  |
                     +---------+-----------------------------+
                     |psignal  |     Y         Y        N    |
                     |psiginfo |     N         -        -    |
                     +---------+-----------------------------+

SEE ALSO
       sigaction(2), reentrant(3), perror(3C), siginfo(5), signal(5).


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