1 /* 2 * pthread_getspecific.c 3 * 4 * Description: 5 * POSIX thread functions which implement thread-specific data (TSD). 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 void * 42 pthread_getspecific (pthread_key_t key) 43 /* 44 * ------------------------------------------------------ 45 * DOCPUBLIC 46 * This function returns the current value of key in the 47 * calling thread. If no value has been set for 'key' in 48 * the thread, NULL is returned. 49 * 50 * PARAMETERS 51 * key 52 * an instance of pthread_key_t 53 * 54 * 55 * DESCRIPTION 56 * This function returns the current value of key in the 57 * calling thread. If no value has been set for 'key' in 58 * the thread, NULL is returned. 59 * 60 * RESULTS 61 * key value or NULL on failure 62 * 63 * ------------------------------------------------------ 64 */ 65 { 66 void * ptr; 67 68 if (key == NULL) 69 { 70 ptr = NULL; 71 } 72 else 73 { 74 int lasterror = GetLastError (); 75 #if defined(RETAIN_WSALASTERROR) 76 int lastWSAerror = WSAGetLastError (); 77 #endif 78 ptr = TlsGetValue (key->key); 79 80 SetLastError (lasterror); 81 #if defined(RETAIN_WSALASTERROR) 82 WSASetLastError (lastWSAerror); 83 #endif 84 } 85 86 return ptr; 87 } 88
