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Signal-Handling Functions |
This section provides a detailed description of each
signal that can be handled by the SAS/C library, with the exception of
SIGIO
. (The
SIGIO
signal is not included because it currently has no special meaning
for the SAS/C library.) Each description explains the information returned
by a call to
siginfo
when a signal is generated
naturally. When your program raises a signal by calling the
raise
function, a call to
siginfo
returns
NULL
except where noted otherwise.
If the program raises a signal by calling
siggen
,
siginfo
returns the value of the
second argument to
siggen
.
Note:
The POSIX signals (
SIGCHLD
,
SIGCONT
,
SIGHUP
,
SIGKILL
,
SIGPIPE
,
SIGQUIT
,
SIGSTOP
,
SIGTSTP
,
SIGTTIN
, and
SIGTTOU
) are not included in this section because all pertinent information
about them is contained in Summary of Default Actions and Summary of Ignoring Signals,
respectively. For general information about POSIX signal handling, refer to The POSIX.1 Standard: A Programmer's Guide.
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