1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/base/src/nsCCUncollectableMarker.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,50 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef nsCCUncollectableMarker_h_
1.10 +#define nsCCUncollectableMarker_h_
1.11 +
1.12 +#include "js/TracingAPI.h"
1.13 +#include "mozilla/Attributes.h"
1.14 +#include "nsIObserver.h"
1.15 +
1.16 +class nsCCUncollectableMarker MOZ_FINAL : public nsIObserver
1.17 +{
1.18 + NS_DECL_ISUPPORTS
1.19 + NS_DECL_NSIOBSERVER
1.20 +
1.21 + /**
1.22 + * Inits a global nsCCUncollectableMarker. Should only be called once.
1.23 + */
1.24 + static nsresult Init();
1.25 +
1.26 + /**
1.27 + * Checks if we're collecting during a given generation
1.28 + */
1.29 + static bool InGeneration(uint32_t aGeneration)
1.30 + {
1.31 + return aGeneration && aGeneration == sGeneration;
1.32 + }
1.33 +
1.34 + template <class CCCallback>
1.35 + static bool InGeneration(CCCallback& aCb, uint32_t aGeneration)
1.36 + {
1.37 + return InGeneration(aGeneration) && !aCb.WantAllTraces();
1.38 + }
1.39 +
1.40 + static uint32_t sGeneration;
1.41 +
1.42 +private:
1.43 + nsCCUncollectableMarker() {}
1.44 +
1.45 +};
1.46 +
1.47 +namespace mozilla {
1.48 +namespace dom {
1.49 +void TraceBlackJS(JSTracer* aTrc, uint32_t aGCNumber, bool aIsShutdownGC);
1.50 +}
1.51 +}
1.52 +
1.53 +#endif
