Provided by: manpages-dev_2.77-1_all bug

NAME
       gettid - get thread identification


SYNOPSIS
       #include <sys/types.h>

       pid_t gettid(void);


DESCRIPTION
       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).


RETURN VALUE
       On success, returns the thread ID of the calling 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.


NOTES
       Glibc does not provide a wrapper for this system call;  call  it  using
       syscall(2).

       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)).


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


COLOPHON
       This page is part of release 2.77 of the Linux  man-pages  project.   A
       description  of  the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.