lib/libthread_xu/thread/thr_main_np.c

   1 /*
   2  * Copyright (c) 2001 Alfred Perlstein
   3  * Author: Alfred Perlstein <alfred@FreeBSD.org>
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  *
  27  * $FreeBSD: src/lib/libpthread/thread/thr_main_np.c,v 1.5 2003/04/18 05:04:16 deischen Exp $
  28  */
  29
  30 #include "namespace.h"
  31 #include <pthread.h>
  32 #include <pthread_np.h>
  33 #include "un-namespace.h"
  34
  35 #include "thr_private.h"
  36
  37 /*
  38  * Provide the equivalent to Solaris thr_main() function.
  39  */
  40 int
  41 _pthread_main_np(void)
  42 {
  43
  44         if (!_thr_initial)
  45                 return (-1);
  46         else
  47                 return (_pthread_equal(_pthread_self(), _thr_initial) ? 1 : 0);
  48 }
  49
  50 __strong_reference(_pthread_main_np, pthread_main_np);