09-11-2003
Thanks, only our SUN SOL is indicating
$ man -s5 signal
No entry for signal in section(s) 5 of the manual.
if this works on your system, could you cut and paste it in?
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LEARN ABOUT DEBIAN
sysv_signal
SYSV_SIGNAL(3) Linux Programmer's Manual SYSV_SIGNAL(3)
NAME
sysv_signal - signal handling with System V semantics
SYNOPSIS
#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <signal.h>
typedef void (*sighandler_t)(int);
sighandler_t sysv_signal(int signum, sighandler_t handler);
DESCRIPTION
The sysv_signal() function takes the same arguments, and performs the same task, as signal(2).
However sysv_signal() provides the System V unreliable signal semantics, that is: a) the disposition of the signal is reset to the default
when the handler is invoked; b) delivery of further instances of the signal is not blocked while the signal handler is executing; and c) if
the handler interrupts (certain) blocking system calls, then the system call is not automatically restarted.
RETURN VALUE
The sysv_signal() function returns the previous value of the signal handler, or SIG_ERR on error.
ERRORS
As for signal(2).
CONFORMING TO
This function is nonstandard.
NOTES
Use of sysv_signal() should be avoided; use sigaction(2) instead.
On older Linux systems, sysv_signal() and signal(2) were equivalent. But on newer systems, signal(2) provides reliable signal semantics;
see signal(2) for details.
The use of sighandler_t is a GNU extension; this type is only defined if the _GNU_SOURCE feature test macro is defined.
SEE ALSO
sigaction(2), signal(2), bsd_signal(3), signal(7)
COLOPHON
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
2007-05-04 SYSV_SIGNAL(3)