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[client/idd] input: add transport diagnostics

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This commit is contained in:
Geoffrey McRae
2026-08-09 01:55:45 +10:00
parent 5b90384123
commit 487920ada3
9 changed files with 634 additions and 34 deletions
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67
idd/LGInput/ipc/CInputPipeClient.cpp
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@@ -37,7 +37,13 @@ static constexpr uint16_t HID_CONSUMER_USAGE_VOLUME_DOWN = 0xea;
bool CInputPipeClient::Start()
{
m_lastSequence = 0;
m_endpoint.Stop();
m_lastSequence = 0;
m_statReceived = 0;
m_statMalformed = 0;
m_statSequenceResets = 0;
m_statSubmitFailed = 0;
m_lastStatistics = GetTickCount64();
m_endpoint.SetHandler(this);
return m_endpoint.Start(
LG_INPUT_PIPE_NAME,
@@ -51,7 +57,10 @@ void CInputPipeClient::Stop()
m_endpoint.Stop();
m_lastSequence = 0;
if (wasRunning)
{
LogStatistics(true);
CHIDDevice::ResetReports();
}
}
void CInputPipeClient::OnPipeConnected()
@@ -63,6 +72,7 @@ void CInputPipeClient::OnPipeConnected()
void CInputPipeClient::OnPipeDisconnected()
{
m_lastSequence = 0;
LogStatistics(true);
CHIDDevice::ResetReports();
DEBUG_INFO("Disconnected from the LGIdd input transport; reconnecting");
}
@@ -72,7 +82,11 @@ bool CInputPipeClient::OnPipeMessage(
size_t size)
{
if (size != sizeof(LGInputPipeMessage))
{
++m_statMalformed;
DEBUG_WARN("Received a malformed LGInput pipe message");
return false;
}
const LGInputPipeMessage & message =
*static_cast<const LGInputPipeMessage *>(frame);
@@ -80,16 +94,22 @@ bool CInputPipeClient::OnPipeMessage(
message.version != LG_INPUT_PIPE_VERSION ||
!message.payloadSize ||
message.payloadSize > sizeof(message.payload))
{
++m_statMalformed;
DEBUG_WARN("Received a malformed LGInput pipe message");
return false;
}
if (!message.sequence ||
(m_lastSequence && message.sequence != m_lastSequence + 1))
{
++m_statSequenceResets;
DEBUG_WARN("LGInput pipe report sequence changed unexpectedly");
CHIDDevice::ResetReports();
return false;
}
bool handled = false;
const uint64_t submitFailures = m_statSubmitFailed;
switch (message.type)
{
case LG_INPUT_PIPE_MESSAGE_MOUSE_RELATIVE:
@@ -107,13 +127,24 @@ bool CInputPipeClient::OnPipeMessage(
break;
default:
++m_statMalformed;
DEBUG_WARN("Received an unknown LGInput pipe message");
return false;
}
if (!handled)
{
if (m_statSubmitFailed == submitFailures)
{
++m_statMalformed;
DEBUG_WARN("Received a malformed LGInput pipe payload");
}
return false;
}
m_lastSequence = message.sequence;
++m_statReceived;
LogStatistics(false);
return true;
}
@@ -265,19 +296,53 @@ bool CInputPipeClient::SubmitReport(
const NTSTATUS status = CHIDDevice::SubmitReport(report, size);
if (status == STATUS_INVALID_PARAMETER)
{
++m_statSubmitFailed;
return false;
}
if (status == STATUS_BUFFER_OVERFLOW)
{
++m_statSubmitFailed;
DEBUG_WARN("LGInput HID report queue overflowed; resetting input state");
CHIDDevice::ResetReports();
return false;
}
if (!NT_SUCCESS(status))
{
++m_statSubmitFailed;
if (status != STATUS_DEVICE_NOT_READY)
DEBUG_WARN_HR(status, "Failed to submit an LGInput HID report");
return false;
}
return true;
}
void CInputPipeClient::LogStatistics(bool force)
{
const ULONGLONG now = GetTickCount64();
if (!force && now - m_lastStatistics < STATISTICS_INTERVAL_MS)
return;
const uint64_t received = m_statReceived;
const uint64_t malformed = m_statMalformed;
const uint64_t sequenceResets = m_statSequenceResets;
const uint64_t submitFailed = m_statSubmitFailed;
m_statReceived = 0;
m_statMalformed = 0;
m_statSequenceResets = 0;
m_statSubmitFailed = 0;
m_lastStatistics = now;
if (received || malformed || sequenceResets || submitFailed)
{
DEBUG_TRACE("LGInput pipe receive: %llu reports, %llu malformed, "
"%llu sequence resets, %llu HID submit failures",
static_cast<unsigned long long>(received),
static_cast<unsigned long long>(malformed),
static_cast<unsigned long long>(sequenceResets),
static_cast<unsigned long long>(submitFailed));
}
CHIDDevice::LogStatistics();
}