Merging upstream version 6.8.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 169 deletions

diff --git a/man2/wait4.2 b/man2/wait4.2
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--- a/man2/wait4.2
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-.\" Copyright (c) 1993 by Thomas Koenig (ig25@rz.uni-karlsruhe.de)
-.\" and Copyright (c) 2004 by Michael Kerrisk <mtk.manpages@gmail.com>
-.\"
-.\" SPDX-License-Identifier: Linux-man-pages-copyleft
-.\"
-.\" Modified Sat Jul 24 13:32:44 1993 by Rik Faith (faith@cs.unc.edu)
-.\" Modified Mon Jun 23 14:09:52 1997 by aeb - add EINTR.
-.\" Modified Tue Jul  7 12:26:42 1998 by aeb - changed return value wait3
-.\" Modified 2004-11-11, Michael Kerrisk <mtk.manpages@gmail.com>
-.\"	Rewrote much of this page, and removed much duplicated text,
-.\"		replacing with pointers to wait.2
-.\"
-.TH wait4 2 2023-10-31 "Linux man-pages 6.7"
-.SH NAME
-wait3, wait4 \- wait for process to change state, BSD style
-.SH LIBRARY
-Standard C library
-.RI ( libc ", " \-lc )
-.SH SYNOPSIS
-.nf
-.B #include <sys/wait.h>
-.P
-.BI "pid_t wait3(int *_Nullable " "wstatus" ", int " options ,
-.BI "            struct rusage *_Nullable " rusage );
-.BI "pid_t wait4(pid_t " pid ", int *_Nullable " wstatus ", int " options ,
-.BI "            struct rusage *_Nullable " rusage );
-.fi
-.P
-.RS -4
-Feature Test Macro Requirements for glibc (see
-.BR feature_test_macros (7)):
-.RE
-.P
-.BR wait3 ():
-.nf
-    Since glibc 2.26:
-        _DEFAULT_SOURCE
-            || (_XOPEN_SOURCE >= 500 &&
-                ! (_POSIX_C_SOURCE >= 200112L
-                   || _XOPEN_SOURCE >= 600))
-    From glibc 2.19 to glibc 2.25:
-        _DEFAULT_SOURCE || _XOPEN_SOURCE >= 500
-    glibc 2.19 and earlier:
-        _BSD_SOURCE || _XOPEN_SOURCE >= 500
-.\"          || _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED
-.fi
-.P
-.BR wait4 ():
-.nf
-    Since glibc 2.19:
-        _DEFAULT_SOURCE
-    glibc 2.19 and earlier:
-        _BSD_SOURCE
-.fi
-.SH DESCRIPTION
-These functions are nonstandard; in new programs, the use of
-.BR waitpid (2)
-or
-.BR waitid (2)
-is preferable.
-.P
-The
-.BR wait3 ()
-and
-.BR wait4 ()
-system calls are similar to
-.BR waitpid (2),
-but additionally return resource usage information about the
-child in the structure pointed to by
-.IR rusage .
-.P
-Other than the use of the
-.I rusage
-argument, the following
-.BR wait3 ()
-call:
-.P
-.in +4n
-.EX
-wait3(wstatus, options, rusage);
-.EE
-.in
-.P
-is equivalent to:
-.P
-.in +4n
-.EX
-waitpid(\-1, wstatus, options);
-.EE
-.in
-.P
-Similarly, the following
-.BR wait4 ()
-call:
-.P
-.in +4n
-.EX
-wait4(pid, wstatus, options, rusage);
-.EE
-.in
-.P
-is equivalent to:
-.P
-.in +4n
-.EX
-waitpid(pid, wstatus, options);
-.EE
-.in
-.P
-In other words,
-.BR wait3 ()
-waits of any child, while
-.BR wait4 ()
-can be used to select a specific child, or children, on which to wait.
-See
-.BR wait (2)
-for further details.
-.P
-If
-.I rusage
-is not NULL, the
-.I struct rusage
-to which it points will be filled with accounting information
-about the child.
-See
-.BR getrusage (2)
-for details.
-.SH RETURN VALUE
-As for
-.BR waitpid (2).
-.SH ERRORS
-As for
-.BR waitpid (2).
-.SH STANDARDS
-None.
-.SH HISTORY
-4.3BSD.
-.P
-SUSv1 included a specification of
-.BR wait3 ();
-SUSv2 included
-.BR wait3 (),
-but marked it LEGACY;
-SUSv3 removed it.
-.P
-Including
-.I <sys/time.h>
-is not required these days, but increases portability.
-(Indeed,
-.I <sys/resource.h>
-defines the
-.I rusage
-structure with fields of type
-.I struct timeval
-defined in
-.IR <sys/time.h> .)
-.SS C library/kernel differences
-On Linux,
-.BR wait3 ()
-is a library function implemented on top of the
-.BR wait4 ()
-system call.
-.SH SEE ALSO
-.BR fork (2),
-.BR getrusage (2),
-.BR sigaction (2),
-.BR signal (2),
-.BR wait (2),
-.BR signal (7)