67 lines
996 B
C++
67 lines
996 B
C++
/* -----------------------------------------------------------------------------
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GSFramework
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Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
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----------------------------------------------------------------------------- */
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#ifndef __NFUTURE__
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#define __NFUTURE__
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#include "thread/atomic_value.h"
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#include "memory/nshared_ptr.h"
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namespace GS {
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namespace ASync {
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/*
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@short Future.
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@author Emmanuel Julien (ejulien@nworks.fr)
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*/
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template <class T> class Future
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{
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T value;
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Threading::Atomic32 set;
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public:
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bool IsSet() const
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{ return set.Get() == 1; }
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void Set(const T &_value)
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{
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value = _value;
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set.Set(1);
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}
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void Wait()
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{ while (!IsSet()); }
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T &Get()
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{
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Wait();
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return value;
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}
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};
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//
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template <> class Future <void>
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{
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Threading::Atomic32 set;
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public:
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bool IsSet() const
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{ return set.Get() == 1; }
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void Set()
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{ set.Set(1); }
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void Wait()
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{ while (!IsSet()); }
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};
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} // ASync
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} // GS
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#endif // __NFUTURE__
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