mirror of
https://github.com/gnif/LookingGlass.git
synced 2026-08-09 16:51:31 +00:00
83c552fb9d
Add an optional input transport and a dedicated LGMP receiver that validates source ownership, generations, ordered sequences, and leases. Poll input outside the 10 ms control timer. Forward mouse and keyboard state through the LGInput pipe, and neutralize the endpoint before ownership changes or transport failures can leave input held.
88 lines
2.4 KiB
C++
88 lines
2.4 KiB
C++
/**
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* Looking Glass
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* Copyright © 2017-2026 The Looking Glass Authors
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* https://looking-glass.io
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#pragma once
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#include "transport/IInputTransport.h"
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#include <Windows.h>
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#include <stdint.h>
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extern "C" {
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#include "lgmp/host.h"
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}
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class CLGMPHost;
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class IInputSink;
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struct KVMFRInputMessage;
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class CLGMPInputTransport final : public IInputTransport
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{
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private:
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static constexpr ULONGLONG OWNER_LEASE_MS = 500;
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static constexpr ULONGLONG ACTIVE_POLL_MS = 50;
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CLGMPHost& m_host;
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PLGMPHostQueue m_queue = nullptr;
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IInputSink * m_sink = nullptr;
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SRWLOCK m_lifecycleLock = SRWLOCK_INIT;
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HANDLE m_stopEvent = nullptr;
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HANDLE m_pollTimer = nullptr;
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HANDLE m_thread = nullptr;
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uint32_t m_ownerClientID = 0;
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uint32_t m_ownerGeneration = 0;
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uint32_t m_ownerSequence = 0;
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ULONGLONG m_ownerDeadline = 0;
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uint64_t m_sinkGeneration = 0;
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bool Initialize();
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void DeInit();
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bool DrainMessages();
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bool ProcessMessage(uint32_t sourceClientID,
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const KVMFRInputMessage& message);
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bool ValidatePayload(const KVMFRInputMessage& message) const;
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bool IsOwner(uint32_t sourceClientID, uint32_t generation) const;
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bool Claim(uint32_t sourceClientID,
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const KVMFRInputMessage& message);
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void RenewLease();
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void ReleaseOwner(bool reset, const char * reason);
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void CheckOwner();
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void Thread();
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static DWORD CALLBACK ThreadProc(void * context);
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friend class CLGMPTransport;
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public:
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explicit CLGMPInputTransport(CLGMPHost& host) :
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m_host(host) {}
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~CLGMPInputTransport() override;
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CLGMPInputTransport(const CLGMPInputTransport&) = delete;
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CLGMPInputTransport& operator=(const CLGMPInputTransport&) = delete;
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bool Start(IInputSink& sink) override;
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void Stop() override;
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};
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