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futurequeue.hxx
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28 
29 #ifndef _SALHELPER_FUTUREQUEUE_HXX_
30 #define _SALHELPER_FUTUREQUEUE_HXX_
31 
32 #include <sal/types.h>
33 #include <rtl/ref.hxx>
34 #include <osl/mutex.hxx>
35 #include <salhelper/future.hxx>
36 #include <salhelper/queue.hxx>
37 
38 namespace salhelper
39 {
40 
41 //----------------------------------------------------------------------------
42 
43 #ifndef SALHELPER_COPYCTOR_API
44 #define SALHELPER_COPYCTOR_API(C) C (const C&); C& operator= (const C&)
45 #endif
46 
47 //----------------------------------------------------------------------------
48 
49 template<class element_type>
50 class FutureQueue : protected osl::Mutex
51 {
55 
58 
61  SALHELPER_COPYCTOR_API(FutureQueue<element_type>);
62 
63 public:
66  inline FutureQueue()
67  {}
68 
71  inline ~FutureQueue()
72  {}
73 
76  inline void put (const element_type& element)
77  {
78  osl::MutexGuard aGuard (*this);
79 
80  rtl::Reference<future_type> xFuture (m_aDelayed.get());
81  if (!xFuture.is())
82  {
83  xFuture = new future_type();
84  m_aPresent.put (xFuture);
85  }
86  xFuture->set (element);
87  }
88 
92  {
93  osl::MutexGuard aGuard (*this);
94 
95  rtl::Reference<future_type> xFuture (m_aPresent.get());
96  if (!xFuture.is())
97  {
98  xFuture = new future_type();
99  m_aDelayed.put (xFuture);
100  }
101  return (xFuture);
102  }
103 };
104 
105 //----------------------------------------------------------------------------
106 
107 } // namespace salhelper
108 
109 #endif /* !_SALHELPER_FUTUREQUEUE */
110 
111 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */