_lwp_self(2)

_lwp_self -- get current LWP's identifier

Synopsis

   #include <sys/types.h>
   #include <sys/lwp.h>
   
   lwpid_t _lwp_self(void);

_lwp_self returns the identifier of the current lightweight process (LWP).

_lwp_self returns the internal-to-the process identifier for the calling LWP.

_lwp_self always succeeds.

Lightweight processes (LWPs) are internal interfaces and are subject to change. Their use should be avoided.