/usr/include/thunderbird/nsWeakReference.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.
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*
* 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 nsWeakReference_h__
#define nsWeakReference_h__
// nsWeakReference.h
// See mfbt/WeakPtr.h for a more typesafe C++ implementation of weak references
#include "nsIWeakReferenceUtils.h"
class nsWeakReference;
// Set IMETHOD_VISIBILITY to empty so that the class-level NS_COM declaration
// controls member method visibility.
#undef IMETHOD_VISIBILITY
#define IMETHOD_VISIBILITY NS_COM_GLUE
class NS_COM_GLUE nsSupportsWeakReference : public nsISupportsWeakReference
{
public:
nsSupportsWeakReference()
: mProxy(0)
{
// nothing else to do here
}
NS_DECL_NSISUPPORTSWEAKREFERENCE
protected:
inline ~nsSupportsWeakReference();
private:
friend class nsWeakReference;
void
NoticeProxyDestruction()
// ...called (only) by an |nsWeakReference| from _its_ dtor.
{
mProxy = 0;
}
nsWeakReference* mProxy;
protected:
void ClearWeakReferences();
bool HasWeakReferences() const {return mProxy != 0;}
};
#undef IMETHOD_VISIBILITY
#define IMETHOD_VISIBILITY NS_VISIBILITY_HIDDEN
inline
nsSupportsWeakReference::~nsSupportsWeakReference()
{
ClearWeakReferences();
}
#endif
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