dep/src/zthread/ThreadLocalImpl.cxx

   1 /*
   2  * Copyright (c) 2005, Eric Crahen
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a copy
   5  * of this software and associated documentation files (the "Software"), to deal
   6  * in the Software without restriction, including without limitation the rights
   7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   8  * copies of the Software, and to permit persons to whom the Software is furnished
   9  * to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in all
  12  * copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  17  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  18  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  19  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  20  *
  21  */
  22
  23 #include "zthread/ThreadLocalImpl.h"
  24 #include "ThreadImpl.h"
  25
  26 namespace ZThread {
  27
  28   ThreadLocalImpl::ThreadLocalImpl() {}
  29
  30   ThreadLocalImpl::~ThreadLocalImpl() {}
  31
  32   void ThreadLocalImpl::clearAll() {
  33
  34     typedef ThreadImpl::ThreadLocalMap Map;
  35     Map& m = ThreadImpl::current()->getThreadLocalMap();
  36
  37     m.clear();
  38
  39   }
  40
  41   void ThreadLocalImpl::clear() const {
  42
  43     typedef ThreadImpl::ThreadLocalMap Map;
  44     Map& m = ThreadImpl::current()->getThreadLocalMap();
  45
  46     Map::iterator i = m.find(this);
  47     if(i != m.end())
  48       m.erase(i);
  49
  50   }
  51
  52   ThreadLocalImpl::ValuePtr ThreadLocalImpl::value( ValuePtr(*pfn)() ) const {
  53
  54     typedef ThreadImpl::ThreadLocalMap Map;
  55     Map& m = ThreadImpl::current()->getThreadLocalMap();
  56
  57     Map::iterator i = m.find(this);
  58     if(i != m.end())
  59       return i->second;
  60
  61     m[ this ] = ValuePtr( pfn() );
  62     return m[ this ];
  63
  64   }
  65
  66 } // namespace ZThread