1 /* 2 * pthread_equal.c 3 * 4 * Description: 5 * This translation unit implements miscellaneous thread functions. 6 * 7 * -------------------------------------------------------------------------- 8 * 9 * Pthreads-win32 - POSIX Threads Library for Win32 10 * Copyright(C) 1998 John E. Bossom 11 * Copyright(C) 1999,2005 Pthreads-win32 contributors 12 * 13 * Contact Email: rpj (at) callisto.canberra.edu.au 14 * 15 * The current list of contributors is contained 16 * in the file CONTRIBUTORS included with the source 17 * code distribution. The list can also be seen at the 18 * following World Wide Web location: 19 * http://sources.redhat.com/pthreads-win32/contributors.html 20 * 21 * This library is free software; you can redistribute it and/or 22 * modify it under the terms of the GNU Lesser General Public 23 * License as published by the Free Software Foundation; either 24 * version 2 of the License, or (at your option) any later version. 25 * 26 * This library is distributed in the hope that it will be useful, 27 * but WITHOUT ANY WARRANTY; without even the implied warranty of 28 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 29 * Lesser General Public License for more details. 30 * 31 * You should have received a copy of the GNU Lesser General Public 32 * License along with this library in the file COPYING.LIB; 33 * if not, write to the Free Software Foundation, Inc., 34 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA 35 */ 36 37 #include "pthread.h" 38 #include "implement.h" 39 40 41 int 42 pthread_equal (pthread_t t1, pthread_t t2) 43 /* 44 * ------------------------------------------------------ 45 * DOCPUBLIC 46 * This function returns nonzero if t1 and t2 are equal, else 47 * returns zero 48 * 49 * PARAMETERS 50 * t1, 51 * t2 52 * thread IDs 53 * 54 * 55 * DESCRIPTION 56 * This function returns nonzero if t1 and t2 are equal, else 57 * returns zero. 58 * 59 * RESULTS 60 * non-zero if t1 and t2 refer to the same thread, 61 * 0 t1 and t2 do not refer to the same thread 62 * 63 * ------------------------------------------------------ 64 */ 65 { 66 int result; 67 68 /* 69 * We also accept NULL == NULL - treating NULL as a thread 70 * for this special case, because there is no error that we can return. 71 */ 72 result = ( t1.p == t2.p && t1.x == t2.x ); 73 74 return (result); 75 76 } /* pthread_equal */ 77