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Diffstat (limited to 'decoder/intrusive_refcount.hpp')
-rwxr-xr-x | decoder/intrusive_refcount.hpp | 84 |
1 files changed, 0 insertions, 84 deletions
diff --git a/decoder/intrusive_refcount.hpp b/decoder/intrusive_refcount.hpp deleted file mode 100755 index 4a4b0187..00000000 --- a/decoder/intrusive_refcount.hpp +++ /dev/null @@ -1,84 +0,0 @@ -#ifndef GRAEHL__SHARED__INTRUSIVE_REFCOUNT_HPP -#define GRAEHL__SHARED__INTRUSIVE_REFCOUNT_HPP - -#include <boost/intrusive_ptr.hpp> -#include <boost/noncopyable.hpp> -#include <boost/detail/atomic_count.hpp> -#include <cassert> - -/** usage: - struct mine : public boost::instrusive_refcount<mine> {}; - - boost::intrusive_ptr<mine> p(new mine()); -*/ - -namespace boost { -// note: the free functions need to be in boost namespace, OR namespace of involved type. this is the only way to do it. - -template <class T> -class intrusive_refcount; - -template <class T> -class atomic_intrusive_refcount; - -template<class T> -void intrusive_ptr_add_ref(intrusive_refcount<T>* ptr) -{ - ++(ptr->refs); -} - -template<class T> -void intrusive_ptr_release(intrusive_refcount<T>* ptr) -{ - if (!--(ptr->refs)) delete static_cast<T*>(ptr); -} - - -//WARNING: only 2^32 (unsigned) refs allowed. hope that's ok :) -template<class T> -class intrusive_refcount : boost::noncopyable -{ - protected: -// typedef intrusive_refcount<T> pointed_type; - friend void intrusive_ptr_add_ref<T>(intrusive_refcount<T>* ptr); - friend void intrusive_ptr_release<T>(intrusive_refcount<T>* ptr); -// friend class intrusive_ptr<T>; - - intrusive_refcount(): refs(0) {} - ~intrusive_refcount() { assert(refs==0); } - -private: - unsigned refs; -}; - - -template<class T> -void intrusive_ptr_add_ref(atomic_intrusive_refcount<T>* ptr) -{ - ++(ptr->refs); -} - -template<class T> -void intrusive_ptr_release(atomic_intrusive_refcount<T>* ptr) -{ - if(!--(ptr->refs)) delete static_cast<T*>(ptr); -} - -template<class T> -class atomic_intrusive_refcount : boost::noncopyable -{ - protected: - friend void intrusive_ptr_add_ref<T>(atomic_intrusive_refcount<T>* ptr); - friend void intrusive_ptr_release<T>(atomic_intrusive_refcount<T>* ptr); - - atomic_intrusive_refcount(): refs(0) {} - ~atomic_intrusive_refcount() { assert(refs==0); } - -private: - boost::detail::atomic_count refs; -}; - -} - - -#endif |