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101 lines
3.0 KiB
C++
101 lines
3.0 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 nsCycleCollector_h__
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#define nsCycleCollector_h__
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class nsICycleCollectorListener;
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class nsISupports;
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class nsScriptObjectTracer;
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#include "nsError.h"
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#include "nsID.h"
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namespace mozilla {
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class CycleCollectedJSRuntime;
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// See the comments in nsContentUtils.h for explanations of these functions.
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typedef void* (*DeferredFinalizeAppendFunction)(void* pointers, void* thing);
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typedef bool (*DeferredFinalizeFunction)(uint32_t slice, void* data);
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}
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// Contains various stats about the cycle collection.
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class nsCycleCollectorResults
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{
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public:
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nsCycleCollectorResults() :
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mForcedGC(false), mMergedZones(false),
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mVisitedRefCounted(0), mVisitedGCed(0),
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mFreedRefCounted(0), mFreedGCed(0) {}
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bool mForcedGC;
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bool mMergedZones;
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uint32_t mVisitedRefCounted;
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uint32_t mVisitedGCed;
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uint32_t mFreedRefCounted;
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uint32_t mFreedGCed;
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};
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bool nsCycleCollector_init();
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enum CCThreadingModel {
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CCSingleThread,
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CCWithTraverseThread
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};
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nsresult nsCycleCollector_startup(CCThreadingModel aThreadingModel);
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typedef void (*CC_BeforeUnlinkCallback)(void);
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void nsCycleCollector_setBeforeUnlinkCallback(CC_BeforeUnlinkCallback aCB);
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typedef void (*CC_ForgetSkippableCallback)(void);
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void nsCycleCollector_setForgetSkippableCallback(CC_ForgetSkippableCallback aCB);
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void nsCycleCollector_forgetSkippable(bool aRemoveChildlessNodes = false,
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bool aAsyncSnowWhiteFreeing = false);
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void nsCycleCollector_dispatchDeferredDeletion();
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void nsCycleCollector_collect(bool aManuallyTriggered,
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nsCycleCollectorResults *aResults,
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nsICycleCollectorListener *aListener);
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uint32_t nsCycleCollector_suspectedCount();
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void nsCycleCollector_shutdownThreads();
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void nsCycleCollector_shutdown();
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// Helpers for interacting with JS
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void nsCycleCollector_registerJSRuntime(mozilla::CycleCollectedJSRuntime *aRt);
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void nsCycleCollector_forgetJSRuntime();
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#define NS_CYCLE_COLLECTOR_LOGGER_CID \
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{ 0x58be81b4, 0x39d2, 0x437c, \
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{ 0x94, 0xea, 0xae, 0xde, 0x2c, 0x62, 0x08, 0xd3 } }
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extern nsresult
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nsCycleCollectorLoggerConstructor(nsISupports* outer,
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const nsIID& aIID,
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void* *aInstancePtr);
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namespace mozilla {
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namespace cyclecollector {
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void AddJSHolder(void* aHolder, nsScriptObjectTracer* aTracer);
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void RemoveJSHolder(void* aHolder);
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#ifdef DEBUG
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bool TestJSHolder(void* aHolder);
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#endif
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void DeferredFinalize(DeferredFinalizeAppendFunction aAppendFunc,
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DeferredFinalizeFunction aFunc,
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void* aThing);
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void DeferredFinalize(nsISupports* aSupports);
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} // namespace cyclecollector
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} // namespace mozilla
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#endif // nsCycleCollector_h__
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