4.4BSD snapshot (revision 8.1)

[unix-history] / usr / src / lib / libc / compat-43 / sigpause.2

diff --git a/usr/src/lib/libc/compat-43/sigpause.2 b/usr/src/lib/libc/compat-43/sigpause.2
index b661634..4454d7f 100644 (file)
--- a/usr/src/lib/libc/compat-43/sigpause.2
+++ b/usr/src/lib/libc/compat-43/sigpause.2
@@ -1,52 +1,48 @@
-.\" Copyright (c) 1983 The Regents of the University of California.
-.\" All rights reserved.
+.\" Copyright (c) 1983, 1991, 1993
+.\"    The Regents of the University of California.  All rights reserved.

 .\"
 .\"

-.\" Redistribution and use in source and binary forms are permitted
-.\" provided that the above copyright notice and this paragraph are
-.\" duplicated in all such forms and that any documentation,
-.\" advertising materials, and other materials related to such
-.\" distribution and use acknowledge that the software was developed
-.\" by the University of California, Berkeley.  The name of the
-.\" University may not be used to endorse or promote products derived
-.\" from this software without specific prior written permission.
-.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
-.\" IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+.\" %sccs.include.redist.man%

 .\"
 .\"

-.\"    @(#)sigpause.2  6.3 (Berkeley) %G%
+.\"     @(#)sigpause.2 8.1 (Berkeley) %G%

 .\"
 .\"

-.TH SIGPAUSE 2 ""
-.UC 4
-.SH NAME
-sigpause \- atomically release blocked signals and wait for interrupt
-.SH SYNOPSIS
-.ft B
-sigpause(sigmask)
-.br
-int sigmask;
-.ft R
-.SH DESCRIPTION
-.I Sigpause
+.Dd 
+.Dt SIGPAUSE 2
+.Os BSD 4
+.Sh NAME
+.Nm sigpause
+.Nd atomically release blocked signals and wait for interrupt
+.Sh SYNOPSIS
+.Fd #include <signal.h>
+.Ft int
+.Fn sigpause "int sigmask"
+.Sh DESCRIPTION
+.Sy This interface is made obsolete by
+.Xr sigsuspend 2 .
+.Pp
+.Fn Sigpause

 assigns 
 assigns 

-.I sigmask
+.Fa sigmask

 to the set of masked signals
 and then waits for a signal to arrive;
 on return the set of masked signals is restored.
 to the set of masked signals
 and then waits for a signal to arrive;
 on return the set of masked signals is restored.

-.I Sigmask
+.Fa Sigmask

 is usually 0 to indicate that no
 is usually 0 to indicate that no

-signals are now to be blocked.
-.I Sigpause
-always terminates by being interrupted, returning \-1 with
-.I errno
-set to EINTR.
-.PP
-In normal usage, a signal is blocked using
-.IR sigblock (2),
-to begin a critical section, variables modified on the occurrence
-of the signal are examined to determine that there is no work
-to be done, and the process pauses awaiting work by using
-.I sigpause
-with the mask returned by
-.IR sigblock .
-.SH SEE ALSO
-sigblock(2), sigvec(2)
+signals are to be blocked.
+.Fn Sigpause
+always terminates by being interrupted, returning -1 with
+.Va errno
+set to
+.Dv EINTR
+.Sh SEE ALSO
+.Xr sigsuspend 2 ,
+.Xr kill 2 ,
+.Xr sigaction 2 ,
+.Xr sigprocmask 2 ,
+.Xr sigblock 2 ,
+.Xr sigvec 2
+.Sh HISTORY
+The
+.Nm
+function call appeared in
+.Bx 4.2
+and has been deprecated.