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



 

NAME


       gettid - get thread identification

 

SYNOPSIS


       #include 
       #include 
       #include 

       _syscall0(pid_t, gettid)
               /* Using syscall(2) may be preferable; see intro(2) */

       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


       clone(2), fork(2), getpid(2)



Linux 2.4.20                      2003-02-01                         GETTID(2)