/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * 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 mozilla.org code.
 *
 * The Initial Developer of the Original Code is ActiveState Tool Corp.
 * Portions created by ActiveState are Copyright (C) 2001 ActiveState
 * Tool Corporation. All Rights Reserved.
 *
 * Contributor(s): Mark Hammond <MarkH@ActiveState.com>
 */

#ifndef nsExceptionService_h__
#define nsExceptionService_h__

#include "nsVoidArray.h"
#include "nsIException.h"
#include "nsIExceptionService.h"
#include "nsIObserverService.h"
#include "nsHashtable.h"

class nsExceptionManager;

/** Exception Service definition **/
class nsExceptionService : public nsIExceptionService, public nsIObserver
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSIEXCEPTIONSERVICE
  NS_DECL_NSIEXCEPTIONMANAGER
  NS_DECL_NSIOBSERVER

  nsExceptionService();
  virtual ~nsExceptionService();

  /* additional members */
  nsresult DoGetExceptionFromProvider( nsresult errCode, nsIException **_richError );
  void Shutdown();


  /* thread management and cleanup */
  static void AddThread(nsExceptionManager *);
  static void DropThread(nsExceptionManager *);
  static void DoDropThread(nsExceptionManager *thread);

  static void DropAllThreads();
  static nsExceptionManager *firstThread;

  nsSupportsHashtable mProviders;

  /* single lock protects both providers hashtable
     and thread list */
  static PRLock* lock;

  static PRUintn tlsIndex;
  static void ThreadDestruct( void *data );
#ifdef NS_DEBUG
  static PRInt32 totalInstances;
#endif
};


#endif // nsExceptionService_h__