Home | History | Annotate | Download | only in wtf
      1 /*
      2  * Copyright (C) 2009 Jian Li <jianli (at) chromium.org>
      3  *
      4  * This library is free software; you can redistribute it and/or
      5  * modify it under the terms of the GNU Library General Public
      6  * License as published by the Free Software Foundation; either
      7  * version 2 of the License, or (at your option) any later version.
      8  *
      9  * This library is distributed in the hope that it will be useful,
     10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12  * Library General Public License for more details.
     13  *
     14  * You should have received a copy of the GNU Library General Public License
     15  * along with this library; see the file COPYING.LIB.  If not, write to
     16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     17  * Boston, MA 02110-1301, USA.
     18  *
     19  */
     20 
     21 #include "config.h"
     22 
     23 #include "ThreadSpecific.h"
     24 #include <wtf/Noncopyable.h>
     25 
     26 #if USE(PTHREADS)
     27 #error This file should not be compiled by ports that do not use Windows native ThreadSpecific implementation.
     28 #endif
     29 
     30 namespace WTF {
     31 
     32 long& tlsKeyCount()
     33 {
     34     static long count;
     35     return count;
     36 }
     37 
     38 DWORD* tlsKeys()
     39 {
     40     static DWORD keys[kMaxTlsKeySize];
     41     return keys;
     42 }
     43 
     44 void ThreadSpecificThreadExit()
     45 {
     46     for (long i = 0; i < tlsKeyCount(); i++) {
     47         // The layout of ThreadSpecific<T>::Data does not depend on T. So we are safe to do the static cast to ThreadSpecific<int> in order to access its data member.
     48         ThreadSpecific<int>::Data* data = static_cast<ThreadSpecific<int>::Data*>(TlsGetValue(tlsKeys()[i]));
     49         if (data)
     50             data->destructor(data);
     51     }
     52 }
     53 
     54 } // namespace WTF
     55