1 /* 2 * pthread_attr_destroy.c 3 * 4 * Description: 5 * This translation unit implements operations on thread attribute objects. 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_attr_destroy (pthread_attr_t * attr) 43 /* 44 * ------------------------------------------------------ 45 * DOCPUBLIC 46 * Destroys a thread attributes object. 47 * 48 * PARAMETERS 49 * attr 50 * pointer to an instance of pthread_attr_t 51 * 52 * 53 * DESCRIPTION 54 * Destroys a thread attributes object. 55 * 56 * NOTES: 57 * 1) Does not affect threads created with 'attr'. 58 * 59 * RESULTS 60 * 0 successfully destroyed attr, 61 * EINVAL 'attr' is invalid. 62 * 63 * ------------------------------------------------------ 64 */ 65 { 66 if (ptw32_is_attr (attr) != 0) 67 { 68 return EINVAL; 69 } 70 71 /* 72 * Set the attribute object to a specific invalid value. 73 */ 74 (*attr)->valid = 0; 75 free (*attr); 76 *attr = NULL; 77 78 return 0; 79 } 80