/usr/include/thunderbird/nsWrapperCacheInlines.h is in thunderbird-dev 1:24.4.0+build1-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsWrapperCacheInline_h___
#define nsWrapperCacheInline_h___
#include "nsWrapperCache.h"
#include "xpcpublic.h"
#include "jsapi.h"
inline JSObject*
nsWrapperCache::GetWrapper() const
{
JSObject* obj = GetWrapperPreserveColor();
xpc_UnmarkGrayObject(obj);
return obj;
}
inline bool
nsWrapperCache::IsBlack()
{
JSObject* o = GetWrapperPreserveColor();
return o && !xpc_IsGrayGCThing(o);
}
static void
SearchGray(void* aGCThing, const char* aName, void* aClosure)
{
bool* hasGrayObjects = static_cast<bool*>(aClosure);
if (!*hasGrayObjects && aGCThing && xpc_IsGrayGCThing(aGCThing)) {
*hasGrayObjects = true;
}
}
inline bool
nsWrapperCache::IsBlackAndDoesNotNeedTracing(nsISupports* aThis)
{
if (IsBlack()) {
nsXPCOMCycleCollectionParticipant* participant = nullptr;
CallQueryInterface(aThis, &participant);
bool hasGrayObjects = false;
participant->Trace(aThis, TraceCallbackFunc(SearchGray), &hasGrayObjects);
return !hasGrayObjects;
}
return false;
}
inline void
nsWrapperCache::TraceWrapperJSObject(JSTracer* aTrc, const char* aName)
{
JS_CallHeapObjectTracer(aTrc, &mWrapper, aName);
}
#endif /* nsWrapperCache_h___ */
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