11-02-2004
There is nothing such as 'name of the signal'. I guess you are refferring to the defined macros for the signal numbers.
#define SIGHUP 1 /* hangup */
#define SIGINT 2 /* interrupt (rubout) */
#define SIGQUIT 3 /* quit (ASCII FS) */
There are couple of ways to find out the description of the caught signal. One can call below functions to get the description:
void psignal(int sig, const char *s);
void psiginfo(siginfo_t *pinfo, char *s);
These functions are defined in <siginfo.h>
Coming to your second question:
As per my understanding, there is no generic function to catch all the signals. It is necessary to specify the signal you want handle.
Hope this helps.
Last edited by A452917; 11-02-2004 at 06:48 PM..
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LEARN ABOUT DEBIAN
ipc::signal
Signal(3pm) User Contributed Perl Documentation Signal(3pm)
NAME
IPC::Signal - Utility functions dealing with signals
SYNOPSIS
$number = sig_num $name;
$name = sig_name $number;
sig_translate_setup;
$number = $Sig_num{$name};
$name = $Sig_name[$number];
DESCRIPTION
This module contains utility functions for dealing with signals.
Nothing is exported by default.
sig_num chopped-signal-name
Returns the signal number of the signal whose name (sans "SIG") is chopped-signal-name, or undef if there is no such signal.
This function is prototyped to take a single scalar argument.
sig_name signal-number
Returns the chopped signal name (like "HUP") of signal number signal-number, or undef if there is no such signal.
This function is prototyped to take a single scalar argument.
sig_translate_setup
If you want to use the @Sig_name and %Sig_num variables directly you must call sig_translate_setup to initialize them. This isn't nec-
essary if you only use the function interfaces sig_name() and sig_num().
This function is prototyped to take no arguments.
%Sig_num
A hash with chopped signal name keys (like "HUP") and integer signal number values.
@Sig_name
An array mapping signal numbers to chopped signal names (like "HUP").
AUTHOR
Roderick Schertler <roderick@argon.org>
SEE ALSO
perl(1).
perl v5.8.8 1998-12-28 Signal(3pm)