public TimerDeviceImpl(IProtocol protocol, ITimer timer = null)
{
_protocol = protocol;
_currentPacket = null;
if (timer == null) timer = new Timer();
_timer = timer;
_timer.Elapsed += TimerForTimeouts_Elapsed;
_protocol.IncomingData += ProtocolOnIncomingData;
_stream = null;
}
private void TimerForTimeouts_Elapsed(object sender, TimerEventArg e)
{
const string errorString = "Таймаут при ожидании ответа от устройства";
_timer.Stop();
if (_currentPacket == null) {
_protocol.Close();
ErrorHandler(this, InternalErrorString);
return;
}
if (_currentPacket.RetryCount != -1) {
--_currentPacket.RetryCount;
if (_currentPacket.RetryCount <= 0) {
_currentPacket = null;
_protocol.Close();
ErrorHandler(this, errorString);
return;
}
SendCurrentPacket();
} else {
SendCurrentPacket();
}
}
private void SendNextPacket()
{
var binaryPacketData = GetNextPacket();
if (binaryPacketData == null) {
_protocol.Close();
FinishedHandler(this);
return;
}
_process += 1;
ProcessHandler(this, _process);
var p = IsNextPacketPresent() ? MiddlePacketStamp : LastPacketStamp;
var packet = new Packet {
WaitResponseTimeout = p.WaitResponseTimeout,
DataBytes = binaryPacketData,
OkResponse = p.OkResponse,
BadResponse = p.BadResponse,
RetryCount = p.RetryCount
};
_currentPacket = packet;
SendCurrentPacket();
}
private void InitPacketStamps()
{
FirstPacketStamp = new Packet {
BadResponse = "BAD",
OkResponse = "GO",
DataBytes = null,
RetryCount = -1,
WaitResponseTimeout = 3000,
DelayBetweenPacket = 300
};
MiddlePacketStamp = new Packet {
BadResponse = "BAD",
OkResponse = "GO",
DataBytes = null,
RetryCount = -1,
WaitResponseTimeout = 1000,
DelayBetweenPacket = 300
};
LastPacketStamp = new Packet {
BadResponse = "BAD",
OkResponse = "GO",
DataBytes = null,
RetryCount = -1,
WaitResponseTimeout = 10000,
DelayBetweenPacket = 300
};
}
public bool StartFlashing(Stream stream)
{
_currentLine = "";
_stream = stream;
_process = 0;
const string errorString = @"Ошибочный файл.";
if (!_protocol.Open()) return false;
InitPacketStamps();
var xmlString = ReadXmlSettingFromFirmwareFile(stream);
if (!GetPacketParametrsByXml(xmlString)) {
ErrorHandler(this, errorString);
_protocol.Close();
return false;
}
var packetCount = (stream.Length - xmlString.Length -1 ) / PacketLenght;
PacketHandler(this, packetCount, PacketLenght);
ProcessHandler(this, _process);
var buf = new byte[PacketLenght];
stream.Read(buf, 0, PacketLenght);
var packet = new Packet {
BadResponse = FirstPacketStamp.BadResponse,
DataBytes = buf,
OkResponse = FirstPacketStamp.OkResponse,
RetryCount = FirstPacketStamp.RetryCount,
WaitResponseTimeout = FirstPacketStamp.WaitResponseTimeout
};
_currentPacket = packet;
SendCurrentPacket();
return true;
}
public void TestPacket()
{
var p = new Packet();
var data = new byte[0x200];
const string okResponce = "OK";
const string badResponce = "BAD";
const int waitResponce = 3000;
const int retryCount = 3;
p.DataBytes = data;
p.OkResponse = okResponce;
p.BadResponse = badResponce;
p.WaitResponseTimeout = waitResponce;
p.RetryCount = retryCount;
Assert.AreEqual(p.DataBytes, data);
Assert.AreEqual(p.OkResponse, okResponce);
Assert.AreEqual(p.BadResponse, badResponce);
Assert.AreEqual(p.WaitResponseTimeout, waitResponce);
Assert.AreEqual(p.RetryCount, retryCount);
}
