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-rw-r--r--man2/sigwaitinfo.230
1 files changed, 15 insertions, 15 deletions
diff --git a/man2/sigwaitinfo.2 b/man2/sigwaitinfo.2
index a5703fc..cf231bc 100644
--- a/man2/sigwaitinfo.2
+++ b/man2/sigwaitinfo.2
@@ -2,7 +2,7 @@
.\"
.\" SPDX-License-Identifier: Linux-man-pages-copyleft
.\"
-.TH sigwaitinfo 2 2023-03-30 "Linux man-pages 6.05.01"
+.TH sigwaitinfo 2 2023-10-31 "Linux man-pages 6.7"
.SH NAME
sigwaitinfo, sigtimedwait, rt_sigtimedwait \- synchronously wait
for queued signals
@@ -12,19 +12,19 @@ Standard C library
.SH SYNOPSIS
.nf
.B #include <signal.h>
-.PP
+.P
.BI "int sigwaitinfo(const sigset_t *restrict " set ,
.BI " siginfo_t *_Nullable restrict " info );
.BI "int sigtimedwait(const sigset_t *restrict " set ,
.BI " siginfo_t *_Nullable restrict " info ,
.BI " const struct timespec *restrict " timeout );
.fi
-.PP
+.P
.RS -4
Feature Test Macro Requirements for glibc (see
.BR feature_test_macros (7)):
.RE
-.PP
+.P
.BR sigwaitinfo (),
.BR sigtimedwait ():
.nf
@@ -40,7 +40,7 @@ is pending
is already pending for the calling thread,
.BR sigwaitinfo ()
will return immediately.)
-.PP
+.P
.BR sigwaitinfo ()
removes the signal from the set of pending
signals and returns the signal number as its function result.
@@ -52,7 +52,7 @@ then the buffer that it points to is used to return a structure of type
(see
.BR sigaction (2))
containing information about the signal.
-.PP
+.P
If multiple signals in
.I set
are pending for the caller, the signal that is retrieved by
@@ -60,7 +60,7 @@ are pending for the caller, the signal that is retrieved by
is determined according to the usual ordering rules; see
.BR signal (7)
for further details.
-.PP
+.P
.BR sigtimedwait ()
operates in exactly the same way as
.BR sigwaitinfo ()
@@ -74,7 +74,7 @@ may overrun by a small amount.)
This argument is a
.BR timespec (3)
structure.
-.PP
+.P
If both fields of this structure are specified as 0, a poll is performed:
.BR sigtimedwait ()
returns immediately, either with information about a signal that
@@ -116,7 +116,7 @@ On Linux,
.BR sigwaitinfo ()
is a library function implemented on top of
.BR sigtimedwait ().
-.PP
+.P
The glibc wrapper functions for
.BR sigwaitinfo ()
and
@@ -126,7 +126,7 @@ are used internally by the NPTL threading implementation.
See
.BR nptl (7)
for details.
-.PP
+.P
The original Linux system call was named
.BR sigtimedwait ().
However, with the addition of real-time signals in Linux 2.2,
@@ -175,18 +175,18 @@ a thread other than the one calling
.BR sigwaitinfo ()
or
.BR sigtimedwait ()).
-.PP
+.P
The set of signals that is pending for a given thread is the
union of the set of signals that is pending specifically for that thread
and the set of signals that is pending for the process as a whole (see
.BR signal (7)).
-.PP
+.P
Attempts to wait for
.B SIGKILL
and
.B SIGSTOP
are silently ignored.
-.PP
+.P
If multiple threads of a process are blocked
waiting for the same signal(s) in
.BR sigwaitinfo ()
@@ -195,7 +195,7 @@ or
then exactly one of the threads will actually receive the
signal if it becomes pending for the process as a whole;
which of the threads receives the signal is indeterminate.
-.PP
+.P
.BR sigwaitinfo ()
or
.BR sigtimedwait (),
@@ -207,7 +207,7 @@ or the
.B SIGFPE
signal that results from an arithmetic error.
Such signals can be caught only via signal handler.
-.PP
+.P
POSIX leaves the meaning of a NULL value for the
.I timeout
argument of