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authorAlejandro Colomar <alx@kernel.org>2023-03-17 17:08:01 +0100
committerAlejandro Colomar <alx@kernel.org>2023-03-30 15:14:55 +0200
commit4131356cdab8d37fc395ca5466a0401c8573380c (patch)
tree8c4c6f1c3172358b735b481cbbfdd9cc04b00ed9 /man3/sigset.3
parentfd00f831b52d61a91d59cb3b46182869145d9700 (diff)
downloadman-pages-4131356cdab8.tar.gz
man*/, man-pages.7: VERSIONS, STANDARDS, HISTORY: Reorganize sections
- Add a new HISTORY section that covers the history of an API, both regarding implementations and regarding old standards. This was previously covered in VERSIONS, and in some cases in STANDARDS. - Repurpose VERSIONS to cover differing implementations in _current_ systems. - STANDARDS is reduced to only cover current versions of standards. That basically means only C11 (C99 has been superseeded by C11; C17 is just a bugfix of C11, so not really a new version), and POSIX.1-2008 (*-2001 was superseeded by *-2008; *-2017 was just a bugfix for *-2008). The section also mentions for example 'Linux', 'GNU' or 'BSD' when a non-standard API is Linux- or GNU-only or if it's (de-facto) standard in the BSDs. - In some cases content that should go into one of these sections was in NOTES. Move it from there to where it corresponds. - In the SYNOPSIS, I added [[deprecated]] in some functions that I found are deprecated by the relevant standards. - A few other related changes... Cc: Oskari Pirhonen <xxc3ncoredxx@gmail.com> Signed-off-by: Alejandro Colomar <alx@kernel.org>
Diffstat (limited to 'man3/sigset.3')
-rw-r--r--man3/sigset.335
1 files changed, 14 insertions, 21 deletions
diff --git a/man3/sigset.3 b/man3/sigset.3
index c1eea871b8..9e6637ef90 100644
--- a/man3/sigset.3
+++ b/man3/sigset.3
@@ -15,11 +15,11 @@ Standard C library
.PP
.B typedef void (*sighandler_t)(int);
.PP
-.BI "sighandler_t sigset(int " sig ", sighandler_t " disp );
+.BI "[[deprecated]] sighandler_t sigset(int " sig ", sighandler_t " disp );
.PP
-.BI "int sighold(int " sig );
-.BI "int sigrelse(int " sig );
-.BI "int sigignore(int " sig );
+.BI "[[deprecated]] int sighold(int " sig );
+.BI "[[deprecated]] int sigrelse(int " sig );
+.BI "[[deprecated]] int sigignore(int " sig );
.fi
.PP
.RS -4
@@ -171,15 +171,16 @@ T} Thread safety MT-Safe
.ad
.sp 1
.SH STANDARDS
-SVr4, POSIX.1-2001, POSIX.1-2008.
-These functions are obsolete: do not use them in new programs.
-POSIX.1-2008 marks
-.BR sighold (),
-.BR sigignore (),
-.BR sigpause (3),
-.BR sigrelse (),
-and
-.BR sigset ()
+POSIX.1-2008.
+.TP
+.I sighandler_t
+GNU.
+POSIX.1 uses the same type but without a
+.IR typedef .
+.SH HISTORY
+glibc 2.1.
+SVr4, POSIX.1-2001.
+POSIX.1-2008 marks these functions
as obsolete, recommending the use of
.BR sigaction (2),
.BR sigprocmask (2),
@@ -188,14 +189,6 @@ and
.BR sigsuspend (2)
instead.
.SH NOTES
-These functions appeared in glibc 2.1.
-.PP
-The
-.I sighandler_t
-type is a GNU extension; it is used on this page only to make the
-.BR sigset ()
-prototype more easily readable.
-.PP
The
.BR sigset ()
function provides reliable signal handling semantics (as when calling