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57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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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 nsWrapperCacheInline_h___
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#define nsWrapperCacheInline_h___
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#include "nsWrapperCache.h"
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#include "xpcpublic.h"
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#include "jsapi.h"
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inline JSObject*
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nsWrapperCache::GetWrapper() const
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{
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JSObject* obj = GetWrapperPreserveColor();
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xpc_UnmarkGrayObject(obj);
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return obj;
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}
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inline bool
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nsWrapperCache::IsBlack()
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{
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JSObject* o = GetWrapperPreserveColor();
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return o && !xpc_IsGrayGCThing(o);
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}
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static void
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SearchGray(void* aGCThing, const char* aName, void* aClosure)
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{
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bool* hasGrayObjects = static_cast<bool*>(aClosure);
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if (!*hasGrayObjects && aGCThing && xpc_IsGrayGCThing(aGCThing)) {
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*hasGrayObjects = true;
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}
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}
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inline bool
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nsWrapperCache::IsBlackAndDoesNotNeedTracing(nsISupports* aThis)
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{
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if (IsBlack()) {
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nsXPCOMCycleCollectionParticipant* participant = nullptr;
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CallQueryInterface(aThis, &participant);
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bool hasGrayObjects = false;
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participant->Trace(aThis, TraceCallbackFunc(SearchGray), &hasGrayObjects);
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return !hasGrayObjects;
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}
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return false;
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}
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inline void
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nsWrapperCache::TraceWrapperJSObject(JSTracer* aTrc, const char* aName)
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{
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JS_CallObjectTracer(aTrc, &mWrapper, aName);
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}
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#endif /* nsWrapperCache_h___ */
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