dep/include/zthread/Task.h

   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 #ifndef __ZTTASK_H__
  24 #define __ZTTASK_H__
  25
  26 #include "zthread/CountedPtr.h"
  27 #include "zthread/Runnable.h"
  28
  29 namespace ZThread {
  30
  31   class ThreadImpl;
  32
  33   /**
  34    * @class Task
  35    *
  36    * @author Eric Crahen <http://www.code-foo.com>
  37    * @date <2003-07-20T05:22:38-0400>
  38    * @version 2.3.0
  39    *
  40    * A Task provides a CountedPtr wrapper for Runnable objects.
  41    * This wrapper enables an implicit conversion from a
  42    * <i>Runnable*</i> to a <i>Task</i> adding some syntactic sugar
  43    * to the interface.
  44    */
  45   class ZTHREAD_API Task : public CountedPtr<Runnable, AtomicCount> {
  46   public:
  47
  48
  49 #if !defined(_MSC_VER) || (_MSC_VER > 1200)
  50
  51     Task(Runnable* raw)
  52       : CountedPtr<Runnable, AtomicCount>(raw) { }
  53
  54 #endif
  55
  56     template <typename U>
  57       Task(U* raw)
  58       : CountedPtr<Runnable, AtomicCount>(raw) { }
  59
  60     Task(const CountedPtr<Runnable, AtomicCount>& ptr)
  61       : CountedPtr<Runnable, AtomicCount>(ptr) { }
  62
  63     template <typename U, typename V>
  64       Task(const CountedPtr<U, V>& ptr)
  65       : CountedPtr<Runnable, AtomicCount>(ptr) { }
  66
  67     void operator()() {
  68       (*this)->run();
  69     }
  70
  71   }; /* Task */
  72
  73 } // namespace ZThread
  74
  75 #endif // __ZTTASK_H__
  76
  77
  78