michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef nsObserverService_h___
michael@0: #define nsObserverService_h___
michael@0: 
michael@0: #include "nsIObserverService.h"
michael@0: #include "nsObserverList.h"
michael@0: #include "nsIMemoryReporter.h"
michael@0: #include "nsTHashtable.h"
michael@0: #include "mozilla/Attributes.h"
michael@0: 
michael@0: // {D07F5195-E3D1-11d2-8ACD-00105A1B8860}
michael@0: #define NS_OBSERVERSERVICE_CID \
michael@0:     { 0xd07f5195, 0xe3d1, 0x11d2, { 0x8a, 0xcd, 0x0, 0x10, 0x5a, 0x1b, 0x88, 0x60 } }
michael@0: 
michael@0: class nsIMemoryReporter;
michael@0: 
michael@0: class nsObserverService MOZ_FINAL
michael@0:   : public nsIObserverService
michael@0:   , public nsIMemoryReporter
michael@0: {
michael@0: public:
michael@0:   NS_DECLARE_STATIC_IID_ACCESSOR(NS_OBSERVERSERVICE_CID)
michael@0: 
michael@0:   nsObserverService();
michael@0: 
michael@0:   NS_DECL_ISUPPORTS
michael@0:   NS_DECL_NSIOBSERVERSERVICE
michael@0:   NS_DECL_NSIMEMORYREPORTER
michael@0: 
michael@0:   void Shutdown();
michael@0: 
michael@0:   static nsresult
michael@0:   Create(nsISupports* outer, const nsIID& aIID, void* *aInstancePtr);
michael@0: 
michael@0:   // Unmark any strongly held observers implemented in JS so the cycle
michael@0:   // collector will not traverse them.
michael@0:   NS_IMETHOD UnmarkGrayStrongObservers();
michael@0: 
michael@0: private:
michael@0:   ~nsObserverService(void);
michael@0:   void RegisterReporter();
michael@0: 
michael@0:   static const size_t kSuspectReferentCount = 100;
michael@0:   static PLDHashOperator CountReferents(nsObserverList* aObserverList,
michael@0:                                         void* aClosure);
michael@0:   bool mShuttingDown;
michael@0:   nsTHashtable<nsObserverList> mObserverTopicTable;
michael@0: };
michael@0: 
michael@0: NS_DEFINE_STATIC_IID_ACCESSOR(nsObserverService, NS_OBSERVERSERVICE_CID)
michael@0: 
michael@0: #endif /* nsObserverService_h___ */