hpux man page for _lwp_self

_lwp_self(2)							System Calls Manual						      _lwp_self(2)

NAME
       _lwp_self() - get current LWP's (Lightweight Process) identifier

SYNOPSIS
DESCRIPTION
       The function returns the identifier of the current LWP.

RETURN VALUE
       The function returns the identifier of the current LWP.

ERRORS
       No errors are returned.	This function always succeeds.

WARNINGS
       Lightweight  processes (LWPs) are internal interfaces and subject to change.  The POSIX pthread interfaces should be used by multi-threaded
       applications.  If the POSIX pthread interfaces and lightweight process interfaces are used in the same application, undefined behavior will
       result.

																      _lwp_self(2)