--- sleep.3.orig 2009-11-07 14:51:38.000000000 -0800 +++ sleep.3 2009-11-07 14:51:40.000000000 -0800 @@ -33,7 +33,7 @@ .Os .Sh NAME .Nm sleep -.Nd suspend process execution for an interval measured in seconds +.Nd suspend thread execution for an interval measured in seconds .Sh LIBRARY .Lb libc .Sh SYNOPSIS @@ -43,11 +43,11 @@ .Sh DESCRIPTION The .Fn sleep -function suspends execution of the calling process until either +function suspends execution of the calling thread until either .Fa seconds -seconds have elapsed or a signal is delivered to the process and its +seconds have elapsed or a signal is delivered to the thread and its action is to invoke a signal-catching function or to terminate the -process. +thread or process. System activity may lengthen the sleep by an indeterminate amount. .Pp This function is implemented using