mirror of
https://github.com/gnif/LookingGlass.git
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109 lines
3.3 KiB
C++
109 lines
3.3 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/CControlHub.h"
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#include "transport/CFrameHub.h"
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#include "transport/ITransport.h"
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#include <memory>
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#include <vector>
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class CTransportManager final
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{
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public:
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using CreateFn = std::unique_ptr<ITransport> (*)();
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using OpenResult = ITransport::OpenResult;
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using ProcessResult = ITransport::ProcessResult;
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using Recovery = ITransport::Recovery;
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private:
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enum class State
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{
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CLOSED,
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OPEN,
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INITIALIZED,
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READY,
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RETRY,
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FAILED,
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STOPPED,
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};
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struct Entry
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{
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BackendId id;
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const char * name;
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bool required;
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bool primary;
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CreateFn create;
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std::unique_ptr<ITransport> transport;
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State state = State::CLOSED;
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uint32_t epoch = 1;
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uint64_t retryAt = 0;
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bool controlAdded = false;
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bool frameAdded = false;
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};
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std::vector<std::unique_ptr<Entry>> m_entries;
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CControlHub m_control;
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CFrameHub m_frames;
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Entry * m_primary = nullptr;
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bool m_initialized = false;
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bool m_setup = false;
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bool m_exposed = false;
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size_t m_alignment = 0;
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OpenResult OpenEntry(Entry& entry);
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bool InitializeEntry(Entry& entry);
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bool SetupEntry(Entry& entry);
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void RetryEntry(Entry& entry, uint64_t now);
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void HandleProcessResult(Entry& entry, ProcessResult result);
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void ScheduleRetry(Entry& entry);
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void RemoveServices(Entry& entry);
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ITransport& Primary();
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public:
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CTransportManager() = default;
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~CTransportManager();
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CTransportManager(const CTransportManager&) = delete;
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CTransportManager& operator=(const CTransportManager&) = delete;
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bool Add(BackendId id, const char * name, bool required, bool primary,
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CreateFn create);
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OpenResult Open();
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bool Initialize();
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bool Setup(size_t alignment);
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ProcessResult Process(ITransportEvents& events);
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void Stop();
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void SyncRecovery();
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void RecoveryStatus(uint64_t session, uint32_t serial, bool active,
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Recovery state, uint32_t error);
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FrameMemoryLimits GetMemoryLimits() const;
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DirectFrameBufferMemory GetDirectMemory() const;
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IFrameTransport& Frames();
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IControlTransport& Control();
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IInputTransport * Input();
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};
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