1 files changed, 289 insertions, 0 deletions
diff --git a/dep/include/zthread/CountedPtr.h b/dep/include/zthread/CountedPtr.h
new file mode 100644
index 00000000000..a4dcc6ef248
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+++ b/dep/include/zthread/CountedPtr.h
@@ -0,0 +1,289 @@
+/*
+ * Copyright (c) 2005, Eric Crahen
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is furnished
+ * to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __ZTCOUNTEDPTR_H__
+#define __ZTCOUNTEDPTR_H__
+
+#include <algorithm>
+#include <cassert>
+
+#include "zthread/AtomicCount.h"
+
+#ifdef _MSC_VER
+# pragma warning(push)
+# pragma warning(disable:4786)  // warning: long template symbol name
+# pragma warning(push)
+# pragma warning(disable:4284)  // warning: odd return type for operator->
+#endif
+
+namespace ZThread {
+  
+  /**
+   * @class CountedPtr
+   *
+   * @author Eric Crahen <http://www.code-foo.com/>
+   * @date <2003-07-29T06:43:48-0400>
+   * @version 2.3.0
+   *
+   */
+  template <typename T, typename CountT = AtomicCount>
+    class CountedPtr {
+
+#if !defined(__MWERKS__)
+#if !defined(_MSC_VER) || (_MSC_VER > 1200)
+      template <typename U, typename V> friend class CountedPtr;
+#endif
+#endif
+
+      CountT* _count;
+      T*  _instance;
+
+      public:
+
+      CountedPtr() : _count(0), _instance(0) { }
+
+#if !defined(__MWERKS__)
+#if !defined(_MSC_VER) || (_MSC_VER > 1200)
+
+      explicit CountedPtr(T* raw) : _count(new CountT()), _instance(raw) {
+        (*_count)++;
+      }
+
+#endif
+#endif
+
+      template <typename U>
+      explicit CountedPtr(U* raw) : _count(new CountT()), _instance(raw) {
+        (*_count)++;
+      }
+
+#if !defined(__MWERKS__)
+#if !defined(_MSC_VER) || (_MSC_VER > 1200)
+
+      CountedPtr(const CountedPtr& ptr) : _count(ptr._count), _instance(ptr._instance) {
+
+        if(_count)
+          (*_count)++;
+
+      }
+
+#endif
+#endif
+
+      template <typename U, typename V>
+      CountedPtr(const CountedPtr<U, V>& ptr) : _count(ptr._count), _instance(ptr._instance) {
+
+        if(_count)
+          (*_count)++;
+
+      }
+
+      ~CountedPtr() {
+
+        if(_count && --(*_count) == 0) {
+   
+          if(_instance) 
+            delete _instance;
+
+          delete _count;
+      
+        }
+
+      }
+  
+
+#if !defined(__MWERKS__)
+#if !defined(_MSC_VER) || (_MSC_VER > 1200)
+
+      const CountedPtr& operator=(const CountedPtr& ptr) {
+    
+        typedef CountedPtr<T, CountT> ThisT;
+
+        ThisT(ptr).swap(*this);
+        return *this;
+
+      } 
+
+#endif
+#endif
+
+      template <typename U, typename V>
+      const CountedPtr& operator=(const CountedPtr<U, V>& ptr) {
+    
+        typedef CountedPtr<T, CountT> ThisT;
+
+        ThisT(ptr).swap(*this);
+        return *this;
+
+      } 
+
+      void reset() {
+
+        typedef CountedPtr<T, CountT> ThisT;
+        ThisT().swap(*this);
+
+      }
+
+#if !defined(__MWERKS__)
+#if !defined(_MSC_VER) || (_MSC_VER > 1200)
+
+      void swap(CountedPtr& ptr) {
+
+        std::swap(_count, ptr._count);
+        std::swap(_instance, ptr._instance);
+
+      }
+
+#endif
+#endif
+	  
+      template <typename U, typename V>
+      void swap(CountedPtr<U, V>& ptr) {
+
+        std::swap(_count, ptr._count);
+        std::swap(_instance, ptr._instance);
+
+      }
+
+      // Convience operators
+
+#if !defined(__MWERKS__)
+#if !defined(_MSC_VER) || (_MSC_VER > 1200)
+
+      bool less(const CountedPtr& ptr) const {
+        return _instance < ptr._instance;
+      }
+
+#endif
+#endif
+
+      template <typename U, typename V>
+      bool less(const CountedPtr<U, V>& ptr) const {
+        return _instance < ptr._instance;
+      }
+
+
+#if !defined(__MWERKS__)
+#if !defined(_MSC_VER) || (_MSC_VER > 1200)
+
+      bool equal(const CountedPtr& ptr) const {
+        return _count == ptr._count;
+      }
+
+#endif
+#endif
+
+      template <typename U, typename V>
+      bool equal(const CountedPtr<U, V>& ptr) const {
+        return _count == ptr._count;
+      }
+
+
+      friend inline bool operator==(const CountedPtr& lhs, const CountedPtr& rhs) {
+        return lhs.equal(rhs);
+      }
+
+      friend inline bool operator<(const CountedPtr& lhs, const CountedPtr& rhs) {
+        return lhs.less(rhs);
+      }
+
+
+      T& operator*() {
+        assert(_instance != 0);
+        return *_instance;
+      }
+
+      T* operator->() {
+        assert(_instance != 0);
+        return _instance;
+      }
+
+      const T* operator->() const {
+        assert(_instance != 0);
+        return _instance;
+      }
+ 
+      bool operator!() const {
+        return _instance == 0;
+      }
+
+      operator bool() const {
+        return _instance != 0;
+      }
+      
+    }; /* CountedPtr */
+
+  template<typename U, typename V, typename X, typename Y> 
+    inline bool operator<(CountedPtr<U, V> const &lhs, CountedPtr<X, Y> const &rhs) {
+    return lhs.less(rhs);
+  }
+
+  template<typename U, typename V, typename X, typename Y> 
+    inline bool operator==(CountedPtr<U, V> const &lhs, CountedPtr<X, Y> const &rhs) {
+    return lhs.equal(rhs.get);
+  }
+
+  template<typename U, typename V, typename X, typename Y> 
+    inline bool operator!=(CountedPtr<U, V> const &lhs, CountedPtr<X, Y> const &rhs) {
+    return !(lhs.equal(rhs.get));
+  }
+
+  template<typename U, typename V, typename X, typename Y> 
+    inline void swap(CountedPtr<U, V> const &lhs, CountedPtr<X, Y> const &rhs) {
+    lhs.swap(rhs);
+  }
+
+#if !defined(__MWERKS__)
+#if !defined(_MSC_VER) || (_MSC_VER > 1200)
+
+  template<typename U, typename V>
+    inline bool operator<(CountedPtr<U, V> const &lhs, CountedPtr<U, V> const &rhs) {
+    return lhs.less(rhs);
+  }
+
+  template<typename U, typename V> 
+    inline bool operator==(CountedPtr<U, V> const &lhs, CountedPtr<U, V> const &rhs) {
+    return lhs.equal(rhs.get);
+  }
+
+  template<typename U, typename V> 
+    inline bool operator!=(CountedPtr<U, V> const &lhs, CountedPtr<U, V> const &rhs) {
+    return !(lhs.equal(rhs.get));
+  }
+
+  template<typename U, typename V> 
+    inline void swap(CountedPtr<U, V> const &lhs, CountedPtr<U, V> const &rhs) {
+    lhs.swap(rhs);
+  }
+
+#endif
+#endif
+
+} // namespace ZThread
+
+#ifdef _MSC_VER
+# pragma warning(pop)
+# pragma warning(pop)
+#endif    
+
+
+#endif // __ZTCOUNTEDPTR_H__