mirror of
https://github.com/gnif/LookingGlass.git
synced 2026-08-09 00:31:31 +00:00
241ab3fad2
Move the reusable named-pipe endpoint and shared support code into the LGCommon static library. Run a dedicated server in LGIdd and a reconnecting client in LGInput, with device-lifecycle handling and report framing. Refactor the helper pipe to use the same endpoint implementation.
94 lines
2.7 KiB
C++
94 lines
2.7 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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#include "CInputPipeClient.h"
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#include "CDebug.h"
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#include "InputPipeProtocol.h"
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#include "../CHIDDevice.h"
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bool CInputPipeClient::Start()
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{
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m_lastSequence = 0;
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m_endpoint.SetHandler(this);
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return m_endpoint.Start(
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LG_INPUT_PIPE_NAME,
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CPipeEndpoint::Mode::Client,
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sizeof(LGInputPipeMessage));
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}
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void CInputPipeClient::Stop()
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{
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const bool wasRunning = m_endpoint.IsRunning();
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m_endpoint.Stop();
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m_lastSequence = 0;
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if (wasRunning)
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CHIDDevice::ClearReports();
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}
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void CInputPipeClient::OnPipeConnected()
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{
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m_lastSequence = 0;
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DEBUG_INFO("Connected to the LGIdd input transport");
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}
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void CInputPipeClient::OnPipeDisconnected()
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{
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m_lastSequence = 0;
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CHIDDevice::ClearReports();
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DEBUG_INFO("Disconnected from the LGIdd input transport; reconnecting");
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}
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bool CInputPipeClient::OnPipeMessage(
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const void * frame,
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size_t size)
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{
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if (size != sizeof(LGInputPipeMessage))
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return false;
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const LGInputPipeMessage & message =
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*static_cast<const LGInputPipeMessage *>(frame);
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if (message.magic != LG_INPUT_PIPE_MAGIC ||
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message.version != LG_INPUT_PIPE_VERSION ||
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message.type != LG_INPUT_PIPE_MESSAGE_REPORT ||
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!message.payloadSize ||
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message.payloadSize > sizeof(message.payload))
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return false;
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if (!message.sequence ||
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(m_lastSequence && message.sequence != m_lastSequence + 1))
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{
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DEBUG_WARN("LGInput pipe report sequence changed unexpectedly");
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return false;
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}
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m_lastSequence = message.sequence;
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const NTSTATUS status =
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CHIDDevice::SubmitReport(message.payload, message.payloadSize);
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if (status == STATUS_INVALID_PARAMETER)
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return false;
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if (status == STATUS_BUFFER_OVERFLOW)
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DEBUG_WARN("LGInput HID report queue is full; dropping a report");
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else if (!NT_SUCCESS(status) && status != STATUS_DEVICE_NOT_READY)
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DEBUG_WARN_HR(status, "Failed to submit an LGInput HID report");
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return true;
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}
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