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c82c609ac3
* * * Bug 936964 (part 7b) - Fix a use-after-free found by ASan. --HG-- extra : rebase_source : d38ab6b63e9d576773baf8e55fa4f7182c33915e
59 lines
1.7 KiB
C++
59 lines
1.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsObserverService_h___
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#define nsObserverService_h___
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#include "nsIObserverService.h"
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#include "nsObserverList.h"
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#include "nsIMemoryReporter.h"
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#include "nsTHashtable.h"
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#include "mozilla/Attributes.h"
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// {D07F5195-E3D1-11d2-8ACD-00105A1B8860}
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#define NS_OBSERVERSERVICE_CID \
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{ 0xd07f5195, 0xe3d1, 0x11d2, { 0x8a, 0xcd, 0x0, 0x10, 0x5a, 0x1b, 0x88, 0x60 } }
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class nsIMemoryReporter;
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class nsObserverService MOZ_FINAL
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: public mozilla::MemoryMultiReporter
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, public nsIObserverService
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{
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public:
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_OBSERVERSERVICE_CID)
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nsObserverService();
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NS_DECL_THREADSAFE_ISUPPORTS
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NS_DECL_NSIOBSERVERSERVICE
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void Shutdown();
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static nsresult
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Create(nsISupports* outer, const nsIID& aIID, void* *aInstancePtr);
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// Unmark any strongly held observers implemented in JS so the cycle
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// collector will not traverse them.
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NS_IMETHOD UnmarkGrayStrongObservers();
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NS_IMETHOD CollectReports(nsIHandleReportCallback *aHandleReport,
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nsISupports *aData);
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private:
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~nsObserverService(void);
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void RegisterReporter();
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static const size_t kSuspectReferentCount = 100;
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static PLDHashOperator CountReferents(nsObserverList* aObserverList,
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void* aClosure);
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bool mShuttingDown;
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nsTHashtable<nsObserverList> mObserverTopicTable;
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(nsObserverService, NS_OBSERVERSERVICE_CID)
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#endif /* nsObserverService_h___ */
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