linux-kernel - Which function returns LWP in Linux.

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Message-ID: <AANLkTikD7M_PKH3YgOWIvrcD6aW6X-gYIo2iw52QRRq_@mail.gmail.com>
Date:	Mon, 17 May 2010 11:57:14 +0530
From:	Srinivas Nayak <sinu.nayak2001@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: Which function returns LWP in Linux.

Hi,

For a process, we have different PIDs. For threads under a single
processes, we have different LWP id, but same PID in Linux.
ex.

root@pc:/home/srinivas# ps -eLf
UID        PID  PPID     LWP  C STIME       TIME     CMD
root       100     1     100  0 May13       00:00:02 ./a.out
root       100     1     102  0 May13       00:00:00 ./a.out

getpid() function returns PID of a process.
Which function retuns LWP id for thread?

Sincerely,
Srinivas Nayak
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