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

       gettid - get thread identification

       #include <sys/types.h>

       pid_t gettid(void);

       Note: There is no glibc wrapper for this system call; see NOTES.

       gettid()  returns  the  caller's thread ID (TID).  In a single-threaded
       process, the thread ID is equal to the process ID (PID, as returned  by
       getpid(2)).  In a multithreaded process, all threads have the same PID,
       but each one has a unique TID.  For further details, see the discussion
       of CLONE_THREAD in clone(2).

       On success, returns the thread ID of the calling process.

       This call is always successful.

       The gettid() system call first appeared on Linux in kernel 2.4.11.

       gettid()  is Linux-specific and should not be used in programs that are
       intended to be portable.

       Glibc does not provide a wrapper for this system call;  call  it  using

       The  thread  ID  returned by this call is not the same thing as a POSIX
       thread ID (i.e., the opaque value returned by pthread_self(3)).

       capget(2), clone(2), fcntl(2), fork(2), get_robust_list(2),  getpid(2),
       ioprio_set(2),   perf_event_open(2),  sched_setaffinity(2),  sched_set-
       param(2), sched_setscheduler(2), tgkill(2), timer_create(2)

       This page is part of release 3.74 of the Linux  man-pages  project.   A
       description  of  the project, information about reporting bugs, and the
       latest    version    of    this    page,    can     be     found     at

Linux                             2014-02-11                         GETTID(2)

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