nextcloud-desktop/shell_integration/windows/OCOverlays/OCOverlay.h
Jocelyn Turcotte c6442f67c1 shell_integration: Fix a crash on explorer startup
There is a race condition that can initialize the RemotePathChecker
instance concurrently on the same address and cause a crash when locking
the mutex. The reason is that local static initialization is not
thread-safe with MSVC2013.

Fix the issue by using call_once to initialize a static unique_ptr
instead.

This could be related to some reports of issue #2836.
2015-02-18 17:33:46 +01:00

42 lines
No EOL
1.2 KiB
C++

/**
* Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*/
#ifndef OCOVERLAY_H
#define OCOVERLAY_H
#pragma once
class OCOverlay : public IShellIconOverlayIdentifier
{
public:
OCOverlay(int state);
IFACEMETHODIMP_(ULONG) AddRef();
IFACEMETHODIMP GetOverlayInfo(PWSTR pwszIconFile, int cchMax, int *pIndex, DWORD *pdwFlags);
IFACEMETHODIMP GetPriority(int *pPriority);
IFACEMETHODIMP IsMemberOf(PCWSTR pwszPath, DWORD dwAttrib);
IFACEMETHODIMP QueryInterface(REFIID riid, void **ppv);
IFACEMETHODIMP_(ULONG) Release();
protected:
~OCOverlay();
private:
bool _IsOverlaysEnabled();
long _referenceCount;
int _state;
};
#endif