diff options
Diffstat (limited to 'lib/libc/sys/nanosleep.2')
| -rw-r--r-- | lib/libc/sys/nanosleep.2 | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/lib/libc/sys/nanosleep.2 b/lib/libc/sys/nanosleep.2 index 956036d..598ce1b 100644 --- a/lib/libc/sys/nanosleep.2 +++ b/lib/libc/sys/nanosleep.2 @@ -1,4 +1,4 @@ -.\" $Id$ +.\" $Id: nanosleep.2,v 1.1 1997/05/12 12:15:35 peter Exp $ .\" $OpenBSD: nanosleep.2,v 1.1 1997/04/20 20:56:20 tholo Exp $ .\" $NetBSD: nanosleep.2,v 1.1 1997/04/17 18:12:02 jtc Exp $ .\" @@ -39,12 +39,29 @@ .Dt NANOSLEEP 2 .Os .Sh NAME -.Nm nanosleep +.Nm nanosleep , +.Nm signanosleep .Sh SYNOPSIS .Fd #include <time.h> .Ft int .Fn nanosleep "const struct timespec *rqtp" "struct timespec *rmtp" -.\" .Sh DESCRIPTION +.Pp +.Fd #include <signal.h> +.Fd #include <time.h> +.Ft int +.Fn signanosleep "const struct timespec *rqtp" "struct timespec *rmtp" "sigset_t *mask" +.Sh DESCRIPTION +.Fn Nanosleep +causes the process to sleep for the specified time. An unmasked signal will +cause it to terminate the sleep early, regardless of the +.Dv SA_RESTART +value on the interrupting signal. +.Pp +The +.Fn signanosleep +function temporarily (and atomically) sets the signal mask of the process +for the duration of the system call so that specific signals can be +nominated to cause an early termination of the sleep. .Sh RETURN VALUE If the .Fn nanosleep @@ -88,9 +105,15 @@ specified a nanosecond value less than zero or greater than 1000 million. is not supported by this implementation. .El .Sh SEE ALSO +.Xr sigsuspend 2 .Xr sleep 3 .Sh STANDARDS The .Fn nanosleep function conforms to .St -p1003.1b-93 . +.Pp +The +.Fn signanosleep +function is an extenstion that first appeared in +.Fx 3.0 |
