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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 19:41:07 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 19:41:07 +0000
commit3af6d22bb3850ab2bac67287e3a3d3b0e32868e5 (patch)
tree3ee7a3ec64525911fa865bb984c86d997d855527 /man3/ualarm.3
parentAdding debian version 6.05.01-1. (diff)
downloadmanpages-3af6d22bb3850ab2bac67287e3a3d3b0e32868e5.tar.xz
manpages-3af6d22bb3850ab2bac67287e3a3d3b0e32868e5.zip
Merging upstream version 6.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'man3/ualarm.3')
-rw-r--r--man3/ualarm.323
1 files changed, 11 insertions, 12 deletions
diff --git a/man3/ualarm.3 b/man3/ualarm.3
index 55ca2d7..0d4275c 100644
--- a/man3/ualarm.3
+++ b/man3/ualarm.3
@@ -3,7 +3,7 @@
.\"
.\" SPDX-License-Identifier: GPL-2.0-or-later
.\"
-.TH ualarm 3 2023-07-20 "Linux man-pages 6.05.01"
+.TH ualarm 3 2023-10-31 "Linux man-pages 6.7"
.SH NAME
ualarm \- schedule signal after given number of microseconds
.SH LIBRARY
@@ -12,15 +12,15 @@ Standard C library
.SH SYNOPSIS
.nf
.B "#include <unistd.h>"
-.PP
+.P
.BI "useconds_t ualarm(useconds_t " usecs ", useconds_t " interval );
.fi
-.PP
+.P
.RS -4
Feature Test Macro Requirements for glibc (see
.BR feature_test_macros (7)):
.RE
-.PP
+.P
.BR ualarm ():
.nf
Since glibc 2.12:
@@ -42,11 +42,11 @@ microseconds.
The delay may be lengthened slightly by any system activity
or by the time spent processing the call or by the
granularity of system timers.
-.PP
+.P
Unless caught or ignored, the
.B SIGALRM
signal will terminate the process.
-.PP
+.P
If the
.I interval
argument is nonzero, further
@@ -80,23 +80,22 @@ T{
.BR ualarm ()
T} Thread safety MT-Safe
.TE
-.sp 1
.SH STANDARDS
None.
.SH HISTORY
4.3BSD, POSIX.1-2001.
POSIX.1-2001 marks it as obsolete.
Removed in POSIX.1-2008.
-.PP
+.P
4.3BSD, SUSv2, and POSIX do not define any errors.
-.PP
+.P
POSIX.1-2001 does not specify what happens if the
.I usecs
argument is 0.
.\" This case is not documented in HP-US, Solar, FreeBSD, NetBSD, or OpenBSD!
On Linux (and probably most other systems),
the effect is to cancel any pending alarm.
-.PP
+.P
The type
.I useconds_t
is an unsigned integer type capable of holding integers
@@ -109,7 +108,7 @@ were instead typed as
Programs will be more portable if they never mention
.I useconds_t
explicitly.
-.PP
+.P
The interaction of this function with
other timer functions such as
.BR alarm (2),
@@ -123,7 +122,7 @@ other timer functions such as
.BR timer_settime (2),
.BR usleep (3)
is unspecified.
-.PP
+.P
This function is obsolete.
Use
.BR setitimer (2)