---- usleep.3.orig Tue Oct 28 18:01:58 2003
-+++ usleep.3 Tue Oct 28 18:07:33 2003
-@@ -37,7 +37,7 @@
+--- _SB/Libc/gen/FreeBSD/usleep.3 2004-11-25 11:38:02.000000000 -0800
++++ _SB/Libc/gen/FreeBSD/usleep.3.edit 2006-06-28 16:55:51.000000000 -0700
+@@ -37,30 +37,34 @@
.Os
.Sh NAME
.Nm usleep
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
-@@ -47,12 +47,13 @@
+ .In unistd.h
+ .Ft int
+-.Fn usleep "useconds_t microseconds"
++.Fo usleep
++.Fa "useconds_t useconds"
++.Fc
.Sh DESCRIPTION
The
.Fn usleep
-function suspends execution of the calling process until either
-+function suspends execution of the calling thread until either
- .Fa microseconds
+-.Fa microseconds
-microseconds have elapsed or a signal is delivered to the process and its
-+microseconds have elapsed or a signal is delivered to the thread and its
- action is to invoke a signal-catching function or to terminate the
+-action is to invoke a signal-catching function or to terminate the
-process.
-System activity may lengthen the sleep by an indeterminate amount.
-+thread or process.
++function suspends execution of the calling thread until either
++.Fa useconds
++microseconds have elapsed
++or a signal is delivered to the thread whose action
++is to invoke a signal-catching function
++or to terminate the thread or process.
+The actual time slept may be longer, due to system latencies
+and possible limitations in the timer resolution of the hardware.
.Pp
- This function is implemented using
- .Xr nanosleep 2
+-This function is implemented using
+-.Xr nanosleep 2
++This function is implemented, using
++.Xr nanosleep 2 ,
+ by pausing for
+-.Fa microseconds
++.Fa useconds
+ microseconds or until a signal occurs.
+ Consequently, in this implementation,
+-sleeping has no effect on the state of process timers,
++sleeping has no effect on the state of process timers
+ and there is no special handling for SIGALRM.
+ .Sh RETURN VALUES
+ .Rv -std usleep
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