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[idd] transport: isolate interactive services

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This commit is contained in:
Geoffrey McRae
2026-08-12 21:49:04 +10:00
parent 51f432db00
commit c92acb0a34
21 changed files with 2026 additions and 401 deletions
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105
idd/LGIdd/transport/CControlHub.h
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@@ -21,40 +21,109 @@
#pragma once
#include "CSRWLock.h"
#include "transport/IControlSink.h"
#include "transport/IControlTransport.h"
#include "transport/ITransport.h"
#include <memory>
#include <Windows.h>
#include <stdint.h>
#include <vector>
class CControlHub final : public IControlTransport
class CControlHub final : public IControlTransport, public IControlEvents
{
private:
struct Sink
static constexpr unsigned MAX_SINKS = 8;
static constexpr DWORD RETRY_MS = 5;
enum class WorkType
{
BackendId backend;
uint32_t epoch;
CSRWLock lock;
IControlTransport * control;
POSITION,
SHAPE,
TRANSFORM,
COUNT,
};
mutable CSRWLock m_sinkLock;
std::vector<std::shared_ptr<Sink>> m_sinks;
struct State
{
std::shared_ptr<const D12ColorTransform> transform;
IDARG_OUT_QUERY_HWCURSOR cursor = {};
std::shared_ptr<const std::vector<BYTE>> cursorData;
UINT sdrWhiteLevel = 0;
uint64_t positionRevision = 0;
uint64_t shapeRevision = 0;
uint64_t transformRevision = 1;
};
struct Work
{
WorkType type = WorkType::POSITION;
IControlSink * target = nullptr;
IDARG_OUT_QUERY_HWCURSOR cursor = {};
std::shared_ptr<const std::vector<BYTE>> cursorData;
std::shared_ptr<const D12ColorTransform> transform;
UINT sdrWhiteLevel = 0;
uint64_t positionRevision = 0;
uint64_t shapeRevision = 0;
uint64_t transformRevision = 0;
uint64_t bindingSerial = 0;
uint64_t replaySerial = 0;
};
struct Sink
{
CControlHub * owner = nullptr;
unsigned index = 0;
BackendId backend = 0;
uint32_t epoch = 0;
CSRWLock lock;
IControlSink * target = nullptr;
HANDLE wake = nullptr;
HANDLE idle = nullptr;
HANDLE thread = nullptr;
uint64_t deliveredPosition = 0;
uint64_t deliveredShape = 0;
uint64_t deliveredTransform = 0;
uint64_t retryAt[static_cast<unsigned>(WorkType::COUNT)] = {};
unsigned nextWork = 0;
uint64_t bindingSerial = 0;
uint64_t replaySerial = 0;
bool active = false;
bool failed = false;
bool failurePending = false;
bool reserved = false;
bool calling = false;
};
mutable CSRWLock m_listLock;
mutable CSRWLock m_stateLock;
std::shared_ptr<const D12ColorTransform> m_colorTransform;
IDARG_OUT_QUERY_HWCURSOR m_cursor = {};
std::vector<BYTE> m_cursorData;
UINT m_sdrWhiteLevel = 0;
bool m_cursorValid = false;
bool m_shapeValid = false;
CSRWLock m_lifecycleLock;
State m_state;
Sink m_sinks[MAX_SINKS];
HANDLE m_stopEvent = nullptr;
bool m_valid = false;
std::vector<std::shared_ptr<Sink>> Snapshot() const;
void Replay(const std::shared_ptr<Sink>& sink);
static DWORD WINAPI WorkerProc(void * opaque);
static uint64_t NextRevision(uint64_t revision);
static bool TokenMatches(const Sink& sink, const ControlToken& token);
bool BeginWork(Sink& sink, Work& work, DWORD& wait);
bool CompleteWork(Sink& sink, const Work& work, ControlResult result);
void Worker(Sink& sink);
void WakeAll(WorkType type);
public:
bool Add(BackendId backend, uint32_t epoch, IControlTransport& control);
CControlHub();
~CControlHub() override;
CControlHub(const CControlHub&) = delete;
CControlHub& operator=(const CControlHub&) = delete;
bool Add(BackendId backend, uint32_t epoch, IControlSink& control);
void Remove(BackendId backend, uint32_t epoch);
bool TakeFailure(ControlToken& token);
void OnControlReplay(const ControlToken& token) override;
void SendCursor(const IDARG_OUT_QUERY_HWCURSOR& info,
const BYTE * data, UINT sdrWhiteLevel) override;