--- parser3/src/include/pa_pool.h	2001/01/30 13:07:31	1.18
+++ parser3/src/include/pa_pool.h	2024/11/04 03:53:25	1.97
@@ -1,76 +1,83 @@
-/*
-  $Id: pa_pool.h,v 1.18 2001/01/30 13:07:31 paf Exp $
+/** @file
+	Parser: pool class decl.
+
+	Copyright (c) 2000-2024 Art. Lebedev Studio (http://www.artlebedev.com)
+
+	Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru>
 */
 
 #ifndef PA_POOL_H
 #define PA_POOL_H
 
-#include <stddef.h>
+#define IDENT_PA_POOL_H "$Id: pa_pool.h,v 1.97 2024/11/04 03:53:25 moko Exp $"
 
-#include "pa_string.h"
-#include "pa_hash.h"
+#include "pa_config_includes.h"
 #include "pa_array.h"
-//#include "pa_table.h"
-#include "pa_exception.h"
+
+/** 
+	Pool mechanizm allows users not to free up allocated objects,
+	leaving that problem to 'pools'.
+
+	@see Pooled
+*/
 
 class Pool {
 public:
 
-	// Exception to report pool errors 
-	Pool(Exception& aexception) : fexception(aexception) {}
-	~Pool() {}
-
-	Exception& exception() { return fexception; }
-
-	void *malloc(size_t size) {
-		return check(real_malloc(size), size);
-	}
-	void *calloc(size_t size) {
-		return check(real_calloc(size), size);
-	}
-
-	String& make_string() {
-		return *new(*this) String(*this);
-	}
-	Hash& make_hash() {
-		return *new(*this) Hash(*this, false);
-	}
-	Hash& make_thread_safe_hash() {
-		return *new(*this) Hash(*this, true);
-	}
-	Array& make_array() {
-		return *new(*this) Array(*this);
-	}
-	Array& make_array(int initial_rows) {
-		return *new(*this) Array(*this, initial_rows);
-	}
-	/*Table& make_table(char *afile, uint aline, Array *acolumns, int initial_rows) {
-		return *new(this) Table(this, afile, aline, acolumns, initial_rows);
-	}*/
-
-protected: // pure virtuals
-
-    virtual void *real_malloc(size_t size)=0;
-    virtual void *real_calloc(size_t size)=0;
-
-protected:
-
-	Exception& fexception;
-
-	// checks whether mem allocated OK. throws exception otherwise
-	void *check(void *ptr, size_t size) {
-		if(!ptr)
-			fexception.raise(0, 0,
-				0,
-				"allocating %ud bytes", size);
-		
-		return ptr;
-	}
+	struct Cleanup : public PA_Allocated {
+		void (*cleanup) (void *);
+		void *data;
+
+		Cleanup(void (*acleanup) (void *), void *adata): cleanup(acleanup), data(adata) {}
+	};
+
+	Pool();
+	~Pool();
+
+	/// registers a routine to clean up non-pooled allocations
+	void register_cleanup(void (*cleanup) (void *), void *data);
+	/// unregister it, looking it up by it's data
+	void unregister_cleanup(void *cleanup_data);
+
+private:
+
+	Array<Cleanup> cleanups;
+
+private: 
+	
+	//{
+	/// @name implementation defined
+	bool real_register_cleanup(void (*cleanup) (void *), void *data);
+	//}
+
+private: 
+
+	/// throws register cleanup exception
+	void fail_register_cleanup() const;
 
 private: //disabled
 
-	// Pool(const Pool&) {}
-	Pool& operator = (const Pool&) { return *this; }
+	Pool(const Pool&);
+	Pool& operator= (const Pool&);
+};
+
+/** 
+	Base for all classes that are allocated in 'pools'.
+	Holds Pool object.
+*/
+class Pooled {
+	// the pool i'm allocated on
+	Pool& fpool;
+public:
+
+	Pooled(Pool& apool);
+
+	/// my pool
+	//Pool& pool() const { return *fpool; }
+
+	/// Sole: this got called automatically from Pool::~Pool()
+	virtual ~Pooled();
+
 };
 
 #endif