52d7de38b1
* Ensure rights check and increments pass before assigning an object to a handle (since deallocation of handles will automatically attempt to cleanup).
55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
/*++
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Copyright (c) Microsoft Corporation
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Licensed under the MIT license.
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Module Name:
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- ObjectHeader.h
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Abstract:
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- This file defines the header information to count handles attached to a given object
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Author:
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- Michael Niksa (miniksa) 12-Oct-2016
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Revision History:
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- Adapted from original items in handle.h
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--*/
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#pragma once
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#include "ObjectHandle.h"
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class ConsoleObjectHeader
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{
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public:
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ConsoleObjectHeader();
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// NOTE: This class must have a virtual method for the stored "this" pointers to match what we're actually looking for.
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// If there is no virtual method, we may have the "this" pointer be offset by 8 from the actual object that inherits ConsoleObjectHeader.
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virtual ~ConsoleObjectHeader(){};
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[[nodiscard]] HRESULT AllocateIoHandle(const ConsoleHandleData::HandleType ulHandleType,
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const ACCESS_MASK amDesired,
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const ULONG ulShareMode,
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std::unique_ptr<ConsoleHandleData>& out);
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[[nodiscard]] HRESULT FreeIoHandle(_In_ ConsoleHandleData* const pFree);
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bool HasAnyOpenHandles() const;
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// TODO: MSFT 9355013 come up with a better solution than this. http://osgvsowi/9355013
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// It's currently a "load bearing" piece because things like the renderer expect there to always be a "current screen buffer"
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void IncrementOriginalScreenBuffer();
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private:
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ULONG _ulOpenCount;
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ULONG _ulReaderCount;
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ULONG _ulWriterCount;
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ULONG _ulReadShareCount;
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ULONG _ulWriteShareCount;
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#ifdef UNIT_TESTING
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friend class ObjectTests;
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#endif
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};
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