pthread_self man page on Gentoo

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PTHREAD_SELF(3)		   Linux Programmer's Manual	       PTHREAD_SELF(3)

NAME
       pthread_self - obtain ID of the calling thread

SYNOPSIS
       #include <pthread.h>

       pthread_t pthread_self(void);

       Compile and link with -pthread.

DESCRIPTION
       The pthread_self() function returns the ID of the calling thread.  This
       is the same value that is returned in *thread in the  pthread_create(3)
       call that created this thread.

RETURN VALUE
       This function always succeeds, returning the calling thread's ID.

ERRORS
       This function always succeeds.

CONFORMING TO
       POSIX.1-2001.

NOTES
       POSIX.1 allows an implementation wide freedom in choosing the type used
       to represent a thread ID; for example, representation using  either  an
       arithmetic  type	 or a structure is permitted.  Therefore, variables of
       type pthread_t can't portably be compared using the C equality operator
       (==); use pthread_equal(3) instead.

       Thread  identifiers  should  be considered opaque: any attempt to use a
       thread ID other than in pthreads calls is nonportable and can  lead  to
       unspecified results.

       Thread IDs are guaranteed to be unique only within a process.  A thread
       ID may be reused after a	 terminated  thread  has  been	joined,	 or  a
       detached thread has terminated.

       The  thread  ID returned by pthread_self() is not the same thing as the
       kernel thread ID returned by a call to gettid(2).

SEE ALSO
       pthread_create(3), pthread_equal(3), pthreads(7)

COLOPHON
       This page is part of release 3.63 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/.

Linux				  2008-10-24		       PTHREAD_SELF(3)
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