Program Listing for File d3d12-fence.h

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#pragma once
#include "concurrent/lock.h"
#include "d3d12-object.h"
#include <guiddef.h>
#include <d3d12.h>
#include <atlbase.h>

namespace gpa {
namespace d3d12_state_tracker {
struct InFlightSignal
{
    CComPtr<ID3D12Fence> fence{};
    uint64_t value{};
    HANDLE eventHandle;
    HANDLE waitHandle;
};

class D3D12FenceState : public D3D12ObjectState
{
private:
    uint64_t mLastSignaledFence;
    D3D12_FENCE_FLAGS mFlags;
    HANDLE mLastEvent;
    uint64_t mLastEventCompletionValue;
    std::list<InFlightSignal> mInFlightSignals{};
    RWLock mInFlightSignalsLock;

public:
    static constexpr GUID sGUID = {0x1ffacc1d, 0x808e, 0x4907, {0xaa, 0x8b, 0x10, 0x85, 0x5f, 0x8c, 0x80, 0xa2}};

public:
    D3D12FenceState(ID3D12Fence* runtimeObj, uint64_t initialFenceValue, D3D12_FENCE_FLAGS flags);
    virtual ~D3D12FenceState();

    GUID GetGUID() override;

    void OnSignal(uint64_t value);
    void OnCommandQueueSignal(ID3D12CommandQueue* commandQueue, uint64_t value);
    void OnCommandQueueSignalCompleted();
    void OnSetEventOnCompletion(UINT64 value, HANDLE hEvent);
    const InFlightSignal* findInFlightSignal(uint64_t value);
    uint64_t GetLastSignaledFenceValue() const;
    D3D12_FENCE_FLAGS GetFlags() const;
    HANDLE GetLastRegisteredEvent();
    uint64_t GetLastRegisteredEventCompletionValue();
};

}  // namespace d3d12_state_tracker
}  // namespace gpa