15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * pthread_getspecific.c 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Description: 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * POSIX thread functions which implement thread-specific data (TSD). 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * -------------------------------------------------------------------------- 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Pthreads-win32 - POSIX Threads Library for Win32 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Copyright(C) 1998 John E. Bossom 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Copyright(C) 1999,2005 Pthreads-win32 contributors 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Contact Email: rpj@callisto.canberra.edu.au 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * The current list of contributors is contained 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * in the file CONTRIBUTORS included with the source 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * code distribution. The list can also be seen at the 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * following World Wide Web location: 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * http://sources.redhat.com/pthreads-win32/contributors.html 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * This library is free software; you can redistribute it and/or 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * modify it under the terms of the GNU Lesser General Public 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * License as published by the Free Software Foundation; either 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * version 2 of the License, or (at your option) any later version. 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * This library is distributed in the hope that it will be useful, 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * but WITHOUT ANY WARRANTY; without even the implied warranty of 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Lesser General Public License for more details. 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * You should have received a copy of the GNU Lesser General Public 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * License along with this library in the file COPYING.LIB; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * if not, write to the Free Software Foundation, Inc., 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "pthread.h" 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "implement.h" 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void * 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)pthread_getspecific (pthread_key_t key) 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * ------------------------------------------------------ 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * DOCPUBLIC 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * This function returns the current value of key in the 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * calling thread. If no value has been set for 'key' in 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * the thread, NULL is returned. 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * PARAMETERS 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * key 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * an instance of pthread_key_t 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * DESCRIPTION 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * This function returns the current value of key in the 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * calling thread. If no value has been set for 'key' in 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * the thread, NULL is returned. 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * RESULTS 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * key value or NULL on failure 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * ------------------------------------------------------ 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void * ptr; 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (key == NULL) 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ptr = NULL; 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int lasterror = GetLastError (); 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(RETAIN_WSALASTERROR) 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int lastWSAerror = WSAGetLastError (); 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ptr = TlsGetValue (key->key); 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SetLastError (lasterror); 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(RETAIN_WSALASTERROR) 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WSASetLastError (lastWSAerror); 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return ptr; 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 88