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authorAlejandro Colomar <alx@kernel.org>2024-04-26 15:06:49 +0200
committerAlejandro Colomar <alx@kernel.org>2024-05-02 01:24:19 +0200
commitdcde2f70372b49ec43efc5db864c9ff585d0a2dd (patch)
tree78b9b7425130e4a5858e4c01a524d802423879ed /man3/sysv_signal.3
parent12aca537ce78a41bbcdaf485209691e10f8002d7 (diff)
downloadman-pages-dcde2f70372b49ec43efc5db864c9ff585d0a2dd.tar.gz
man/, share/mk/: Move man*/ to man/
This is a scripted change: $ mkdir man/; $ mv man* man/; $ ln -st . man/man*; $ find share/mk/ -type f \ | xargs grep -l '^MANDIR *:=' \ | xargs sed -i '/^MANDIR *:=/s,$,/man,'; $ find share/mk/dist/ -type f \ | xargs grep -l man \ | xargs sed -i 's,man%,man/%,g'; Link: <https://lore.kernel.org/linux-man/YxcV4h+Xn7cd6+q2@pevik/T/> Cc: Petr Vorel <pvorel@suse.cz> Cc: Jakub Wilk <jwilk@jwilk.net> Cc: Stefan Puiu <stefan.puiu@gmail.com> Signed-off-by: Alejandro Colomar <alx@kernel.org>
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-'\" t
-.\" Copyright (c) 2007 Michael Kerrisk <mtk.manpages@gmail.com>
-.\"
-.\" SPDX-License-Identifier: Linux-man-pages-copyleft
-.\"
-.TH sysv_signal 3 (date) "Linux man-pages (unreleased)"
-.SH NAME
-sysv_signal \- signal handling with System V semantics
-.SH LIBRARY
-Standard C library
-.RI ( libc ", " \-lc )
-.SH SYNOPSIS
-.nf
-.BR "#define _GNU_SOURCE" " /* See feature_test_macros(7) */"
-.B #include <signal.h>
-.P
-.B typedef void (*sighandler_t)(int);
-.P
-.BI "sighandler_t sysv_signal(int " signum ", sighandler_t " handler );
-.fi
-.SH DESCRIPTION
-The
-.BR sysv_signal ()
-function takes the same arguments, and performs the same task, as
-.BR signal (2).
-.P
-However
-.BR 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.
-.SH RETURN VALUE
-The
-.BR sysv_signal ()
-function returns the previous value of the signal handler, or
-.B SIG_ERR
-on error.
-.SH ERRORS
-As for
-.BR signal (2).
-.SH ATTRIBUTES
-For an explanation of the terms used in this section, see
-.BR attributes (7).
-.TS
-allbox;
-lbx lb lb
-l l l.
-Interface Attribute Value
-T{
-.na
-.nh
-.BR sysv_signal ()
-T} Thread safety MT-Safe
-.TE
-.SH VERSIONS
-Use of
-.BR sysv_signal ()
-should be avoided; use
-.BR sigaction (2)
-instead.
-.P
-On older Linux systems,
-.BR sysv_signal ()
-and
-.BR signal (2)
-were equivalent.
-But on newer systems,
-.BR signal (2)
-provides reliable signal semantics; see
-.BR signal (2)
-for details.
-.P
-The use of
-.I sighandler_t
-is a GNU extension;
-this type is defined only if
-the
-.B _GNU_SOURCE
-feature test macro is defined.
-.SH STANDARDS
-None.
-.SH SEE ALSO
-.BR sigaction (2),
-.BR signal (2),
-.BR bsd_signal (3),
-.BR signal (7)