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- Sync with reality.
- Fix date.

.\"	$NetBSD: _lwp_detach.2,v 1.3 2007/02/10 10:34:03 ad Exp $
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.\" by Jason R. Thorpe of Wasabi Systems, Inc, and by Andrew Doran.
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.Dd January 20, 2007
.Dt _LWP_DETACH 2
.Os
.Sh NAME
.Nm _lwp_detach
.Nd detach a light-weight process
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In lwp.h
.Ft int
.Fn _lwp_detach "lwpid_t lwp"
.Sh DESCRIPTION
.Fn _lwp_detach
causes a light-weight process to become detached, having the same
effect as if the LWP was created with the
.Dv LWP_DETACHED
flag.
.Pp
The resources associated with a detached LWP will be automatically
reclaimed by the system when the LWP exits.
Conversely, an attached LWP's resources will not be reclaimed until
its status is reported to another LWP via
.Xr _lwp_wait 2 .
.Sh RETURN VALUES
A 0 value indicates that the call succeeded.
A \-1 return value indicates an error occurred and
.Va errno
is set to indicate the reason.
.Sh ERRORS
.Bl -tag -width [EINVAL]
.It Bq Er EINVAL
The LWP is already detached.
.It Bq Er ESRCH
No LWP can be found in the current process corresponding to that
specified by
.Fa lwp .
.El
.Sh SEE ALSO
.Xr _lwp_create 2 ,
.Xr _lwp_wait 2
.Sh HISTORY
The
.Fn _lwp_detach
system call first appeared in
.Nx 5.0 .