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Improved packet handling to deal better with empty packets and errors.

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This commit is contained in:
IceStormNG
2023-08-18 15:05:55 +02:00
parent f79a91fb78
commit 18b54886ed
1 changed files with 70 additions and 43 deletions
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113
app/Peripherals/Mouse/AsusMouse.cs
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@@ -314,59 +314,86 @@ namespace GHelper.Peripherals.Mouse
[MethodImpl(MethodImplOptions.Synchronized)]
protected virtual byte[]? WriteForResponse(byte[] packet)
{
Array.Resize(ref packet, ASUS_MOUSE_PACKET_SIZE);
byte[] response = new byte[ASUS_MOUSE_PACKET_SIZE];
try
int retries = 3;
while (retries > 0)
{
if (IsPacketLoggerEnabled())
Logger.WriteLine(GetDisplayName() + ": Sending packet: " + ByteArrayToString(packet));
response = new byte[ASUS_MOUSE_PACKET_SIZE];
long time = MeasuredIO(Write, packet);
Logger.WriteLine(GetDisplayName() + ": Write took " + time + "ms");
time = MeasuredIO(Read, response);
Logger.WriteLine(GetDisplayName() + ": Read took " + time + "ms");
if (IsPacketLoggerEnabled())
Logger.WriteLine(GetDisplayName() + ": Read packet: " + ByteArrayToString(response));
if (IsMouseError(response))
try
{
Logger.WriteLine(GetDisplayName() + ": Mouse returned error (FF AA). Packet probably not supported by mouse firmware.");
//Error. Mouse could not understand or process the sent packet
return response;
}
if (IsPacketLoggerEnabled())
Logger.WriteLine(GetDisplayName() + ": Sending packet: " + ByteArrayToString(packet)
+ " Try " + (retries - 2) + " of 3");
long time = MeasuredIO(Write, packet);
Logger.WriteLine(GetDisplayName() + ": Write took " + time + "ms");
//Not the response we were looking for, continue reading
while (response[0] != packet[0] || response[1] != packet[1] || response[2] != packet[2])
{
Logger.WriteLine(GetDisplayName() + ": Read wrong packet left in buffer: " + ByteArrayToString(response) + ". Retrying...");
//Read again
time = MeasuredIO(Read, response);
Logger.WriteLine(GetDisplayName() + ": Read took " + time + "ms");
if (IsMouseError(response))
{
if (IsPacketLoggerEnabled())
Logger.WriteLine(GetDisplayName() + ": Read packet: " + ByteArrayToString(response));
Logger.WriteLine(GetDisplayName() + ": Mouse returned error (FF AA). Packet probably not supported by mouse firmware.");
//Error. Mouse could not understand or process the sent packet
return response;
}
if (response[1] == 0 && response[2] == 0 && response[3] == 0)
{
if (IsPacketLoggerEnabled())
Logger.WriteLine(GetDisplayName() + ": Read packet: " + ByteArrayToString(response));
Logger.WriteLine(GetDisplayName() + ": Received empty packet. Stopping here.");
//Empty packet
return null;
}
//Not the response we were looking for, continue reading
while (response[0] != packet[0] || response[1] != packet[1] || response[2] != packet[2])
{
if (IsPacketLoggerEnabled())
Logger.WriteLine(GetDisplayName() + ": Read wrong packet left in buffer: " + ByteArrayToString(response) + ". Retrying...");
//Read again
time = MeasuredIO(Read, response);
Logger.WriteLine(GetDisplayName() + ": Read took " + time + "ms");
}
if (IsPacketLoggerEnabled())
Logger.WriteLine(GetDisplayName() + ": Read packet: " + ByteArrayToString(response));
return response;
}
catch (IOException e)
{
Logger.WriteLine(GetDisplayName() + ": Failed to read packet " + e.Message);
OnDisconnect();
return null;
}
catch (TimeoutException e)
{
Logger.WriteLine(GetDisplayName() + ": Timeout reading packet " + e.Message + " Trying again.");
retries--;
continue;
}
catch (ObjectDisposedException)
{
Logger.WriteLine(GetDisplayName() + ": Channel closed ");
OnDisconnect();
return null;
}
}
catch (IOException e)
{
Logger.WriteLine(GetDisplayName() + ": Failed to read packet " + e.Message);
OnDisconnect();
return null;
}
catch (TimeoutException e)
{
Logger.WriteLine(GetDisplayName() + ": Timeout reading packet " + e.Message);
return null;
}
catch (ObjectDisposedException)
{
Logger.WriteLine(GetDisplayName() + ": Channel closed ");
OnDisconnect();
return null;
}
return response;
return null;
}
public abstract string GetDisplayName();