gettid

GETTID(2)		  Linux Programmer’s Manual		    GETTID(2)



NAME
       gettid - get thread identification

SYNOPSIS
       #include <sys/types.h>
       #include <linux/unistd.h>

       _syscall0(pid_t,gettid)

       pid_t gettid(void);

DESCRIPTION
       gettid  returns the thread ID of the current process. This is equal to
       the process ID (as returned by getpid(2)), unless the process is	 part
       of  a thread group (created by specifying the CLONE_THREAD flag to the
       clone(2) system call). All processes in the same thread group have the
       same PID, but each one has a unique TID.

RETURN VALUE
       On success, returns the thread ID of the current process.

ERRORS
       This call is always successful.

CONFORMING TO
       gettid  is  Linux specific and should not be used in programs that are
       intended to be portable.

SEE ALSO
       getpid(2), clone(2), fork(2)




Linux 2.4.20			  2003-02-01			    GETTID(2)