--- parser3/src/include/pa_pool.h	2001/01/26 15:43:11	1.4
+++ parser3/src/include/pa_pool.h	2003/02/17 09:56:15	1.86.2.29
@@ -1,27 +1,196 @@
-/*
-  $Id: pa_pool.h,v 1.4 2001/01/26 15:43:11 paf Exp $
+/** @file
+	Parser: Parser: reference counting classes decls.
+
+	Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com)
+
+	Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
 */
 
 #ifndef PA_POOL_H
 #define PA_POOL_H
 
-#include <stddef.h>
+static const char* IDENT_POOL_H="$Date: 2003/02/17 09:56:15 $";
+
+// include
+
+#include "pa_config_includes.h"
+
+#ifdef XML
+#	include "gdome.h"
+// for xmlChar
+#	include "libxml/tree.h"
+#endif
 
-#include "pa_string.h"
+// forwards
 
-class Pool {
+void *pa_malloc(size_t size);
+void *pa_calloc(size_t size);
+void pa_free(void *ptr);
+void *pa_realloc(void *ptr, size_t size);
+
+class Exception;
+class String;
+class Charset;
+class GdomeDOMString_auto_ptr;
+
+template<typename T> class object_ptr {
+	T *ptr;
 public:
-	Pool();
-	~Pool();
-    void *alloc(size_t size);
-    void *calloc(size_t size);
+	typedef T element_type;
 
-	String *makeString() { 
-		return new(this) String(this);
+	explicit object_ptr(T *ptr = 0) {
+		this->ptr=ptr;
+		if(ptr)
+			ptr->ref();
+	}
+	template<class B> object_ptr(const object_ptr<B>& src) {
+		this->ptr=src.get();
+		if(ptr)
+			ptr->ref();
+	}
+	object_ptr(const object_ptr<T>& src) {
+		ptr=src.get();
+		if(ptr)
+			ptr->ref();
+	}
+	object_ptr(T *ptr, int) {
+		this->ptr=ptr;
+	}
+   object_ptr<T>& operator=(const object_ptr<T>& src) {
+		if(this!=&src)
+			if(ptr!=src.get()) {
+				if(ptr)
+					ptr->unref();
+				ptr=src.get();
+				if(ptr)
+					ptr->ref();
+			}
+		return *this;
 	}
-	String *makeString(char *src) {
-		return new(this) String(this, src);
+    ~object_ptr() {
+		if(ptr)
+			ptr->unref();
+	}
+    T& operator*() const {
+		return *get();
+	}
+    T *operator->() const {
+		return get();
+	}
+    T *get() const {
+		return ptr;
+	}
+	operator bool() const {
+		return get()!=0;
+	}
+	bool operator !() const {
+		return get()==0;
 	}
 };
 
+#define DECLARE_OBJECT_PTR(name) \
+	typedef object_ptr<name> name##Ptr
+
+/// TEMPLATE CLASS smart_ptr, stolen  from stl:auto_ptr & renamed field/params [not compiled on gcc]
+template<class T>
+	class smart_ptr {
+	bool owns;
+	T *ptr;
+public:
+	typedef T element_type;
+	explicit smart_ptr(T *aptr = 0)
+		: owns(aptr != 0), ptr(aptr) {}
+	smart_ptr(const smart_ptr<T>& src)
+		: owns(src.owns), ptr(src.release()) {}
+	smart_ptr<T>& operator=(const smart_ptr<T>& src)
+		{if (this != &src)
+			{if (ptr != src.get())
+				{if (owns)
+					delete ptr;
+				owns = src.owns; }
+			else if (src.owns)
+				owns = true;
+			ptr = src.release(); }
+		return (*this); }
+	~smart_ptr()
+		{if (owns)
+			delete ptr; }
+	T& operator*() const
+		{return (*get()); }
+	T *get() const
+		{return ptr; }
+	T *release() const
+		{((smart_ptr<T> *)this)->owns = false;
+		return (ptr); }
+	operator bool() const {
+		return get()!=0;
+	}
+	operator T*() const {
+		return ptr;
+	}
+	};
+
+// defines
+
+#define override
+#define rethrow throw
+
+// memory
+
+inline void *operator new[] (size_t size) {
+	return pa_malloc(size);
+}
+inline void operator delete[] (void *ptr) {
+	pa_free(ptr);
+}
+
+class PA_Allocated {
+public:
+	/// the sole: instances allocated using our functions
+	static void *operator new(size_t size) { 
+		return pa_malloc(size);
+	}
+	static void operator delete(void *ptr) {
+		pa_free(ptr);
+	}
+	static void *malloc(size_t size) {
+		return pa_malloc(size);
+	}
+	static void *calloc(size_t size) {
+		return pa_calloc(size);
+	}
+	static void free(void *ptr) {
+		pa_free(ptr);
+	}
+	static void *realloc(void *ptr, size_t size) {
+		return pa_realloc(ptr, size);
+	}
+
+};
+
+/** 
+	Base for all Parser classes, memory allocation/dallocation goes via pa_malloc/pa_free.
+*/
+class PA_Object: public PA_Allocated {
+	mutable unsigned long freferences;
+public:
+	PA_Object(): freferences(0) {}
+	virtual ~PA_Object() {}
+	 
+	void ref() const {
+		freferences++;
+	}
+	void unref() const {
+		if(freferences) {
+			if(--freferences==0)
+				delete this;
+		}
+	}
+};
+DECLARE_OBJECT_PTR(PA_Object);
+
+// convinient types
+
+typedef smart_ptr<char> CharPtr;
+
 #endif