.\" Copyright (c) 2007 The DragonFly Project.  All rights reserved.
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.\" This code is derived from software contributed to The DragonFly Project
.\" by Simon 'corecode' Schubert <corecode@fs.ei.tum.de>
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.\" $DragonFly: src/lib/libc/sys/lwp_gettid.2,v 1.1 2007/03/12 21:07:42 corecode Exp $
.\"
.Dd March 12, 2007
.Dt LWP_GETTID 2
.Os
.Sh NAME
.Nm lwp_gettid
.Nd get calling lwp identification
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In unistd.h
.Ft lwpid_t
.Fn lwp_gettid "void"
.Sh DESCRIPTION
The
.Fn lwp_gettid
function returns the lwp id of the calling lwp.
.Sh ERRORS
The
.Fn lwp_gettid
function is always successful and no return value is reserved
to indicate an error.
.Sh SEE ALSO
.Xr getpid 2 ,
.Xr getppid 2 ,
.Xr lwp_create 2
.Sh HISTORY
The
.Fn lwp_gettid
function first appeared in
.Dx 1.9 .