pthread_equal.c

/*
 * pthread_equal.c
 *
 * Description:
 * This translation unit implements miscellaneous thread functions.
 *
 * --------------------------------------------------------------------------
 *
 *      Pthreads-embedded (PTE) - POSIX Threads Library for embedded systems
 *      Copyright(C) 2008 Jason Schmidlapp
 *
 *      Contact Email: jschmidlapp@users.sourceforge.net
 *
 *
 *      Based upon Pthreads-win32 - POSIX Threads Library for Win32
 *      Copyright(C) 1998 John E. Bossom
 *      Copyright(C) 1999,2005 Pthreads-win32 contributors
 *
 *      Contact Email: rpj@callisto.canberra.edu.au
 *
 *      The original list of contributors to the Pthreads-win32 project
 *      is contained in the file CONTRIBUTORS.ptw32 included with the
 *      source code distribution. The list can also be seen at the
 *      following World Wide Web location:
 *      http://sources.redhat.com/pthreads-win32/contributors.html
 *
 *      This library is free software; you can redistribute it and/or
 *      modify it under the terms of the GNU Lesser General Public
 *      License as published by the Free Software Foundation; either
 *      version 2 of the License, or (at your option) any later version.
 *
 *      This library is distributed in the hope that it will be useful,
 *      but WITHOUT ANY WARRANTY; without even the implied warranty of
 *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *      Lesser General Public License for more details.
 *
 *      You should have received a copy of the GNU Lesser General Public
 *      License along with this library in the file COPYING.LIB;
 *      if not, write to the Free Software Foundation, Inc.,
 *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 */

#include "pthread.h"
#include "implement.h"


int
pthread_equal (pthread_t t1, pthread_t t2)
/*
 * ------------------------------------------------------
 * DOCPUBLIC
 *      This function returns nonzero if t1 and t2 are equal, else
 *      returns nonzero
 *
 * PARAMETERS
 *      t1,
 *      t2
 *              thread IDs
 *
 *
 * DESCRIPTION
 *      This function returns nonzero if t1 and t2 are equal, else
 *      returns zero.
 *
 * RESULTS
 *              non-zero        if t1 and t2 refer to the same thread,
 *              0               t1 and t2 do not refer to the same thread
 *
 * ------------------------------------------------------
 */
{
  int result;

  /*
   * We also accept NULL == NULL - treating NULL as a thread
   * for this special case, because there is no error that we can return.
   */
  result = ( t1.p == t2.p && t1.x == t2.x );

  return (result);

}				/* pthread_equal */