/*
 * The contents of this file are subject to the Netscape Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/NPL/

 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.

 * The Original Code is Rhino code, released
 * May 6, 1999.

 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1997-1999 Netscape Communications Corporation. All
 * Rights Reserved.

 * Contributor(s): 

 * Alternatively, the contents of this file may be used under the
 * terms of the GNU Public License (the "GPL"), in which case the
 * provisions of the GPL are applicable instead of those above.
 * If you wish to allow use of your version of this file only
 * under the terms of the GPL and not to allow others to use your
 * version of this file under the NPL, indicate your decision by
 * deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL.  If you do not delete
 * the provisions above, a recipient may use your version of this
 * file under either the NPL or the GPL.
 */
#ifndef _JS_GC_HEAP_H_
#define _JS_GC_HEAP_H_

#ifdef VX
#include <vxWorks.h>
#include <memLib.h>
#endif
#include "js-gc.h"

/* Classes */
class JSRuntime;
class JSContext;
class JSGCHeap: public JSGCMemory {
    protected:
	class Allocator: public JSGCMemory::MemoryAllocator,
				public JSGCMemory::PhaseListener {
	    friend class JSGCHeap;

	    protected:
		JSRuntime *runtime;
		int	maxBytes;
		int	bytes;

	    protected:
		static size_t	extractSize(void *ptr);
		static size_t   getRealdl_mallocSize(void *ptr);

	    public:
		Allocator(JSRuntime *runtime, int maxBytes);

		/* MemoryAllocator methods */
		void	*memalign(JSContext* cx, size_t alignment, size_t size);
		void	*malloc(JSContext* cx, size_t size);
		void	free(void *ptr);

		/* PhaseListener methods */
		void	markAll(JSContext* cx);
		void	finalize(JSContext* cx, void *obj);
		void	stopWorld();
		void 	resumeWorld();
	} ;

#ifdef THREADS
	class MutexListener: public JSGCMemory::MutexListener {
	    protected:
		JSRuntime *runtime;

	    public:
		MutexListener(JSRuntime *runtime);

                void	lock();
                void	unlock();
	} ;
#endif

    protected:
	Allocator	allocator;
#ifdef THREADS
	MutexListener	mutexListener;
#endif

    public:
	JSGCHeap(JSRuntime *runtime, int maxBytes);
	~JSGCHeap();

	void *newNormalObj(JSContext *cx, size_t size);
	void *newObj(JSContext *cx, size_t size);
} ;

#endif /* _JS_GC_HEAP_H_ */

