public IEnumerable <byte[]> ReadLogs(DateTime startTime, LogDataLevel level)
{
if (LogStatus != LogStatus.Idle)
{
throw new InvalidOperationException("Cancel the current read op before starting a new one");
}
LogStatus = LogStatus.InProgress;
Vivo45LogPacket.Vivo45LogLevel v45Level = GetVivoLogLevel(level);
if (!device.Messenger.StartLogDownload(v45Level, startTime, DateTime.Now, true))
{
LogStatus = LogStatus.Idle;
throw new Communication.CommunicationException("Error sending log start message");
}
//start reading
var logs = new List <byte[]>();
int expectedMessageNo = 0;
int time = 0;
int start = Environment.TickCount;
LogStatus = LogStatus.InProgress;
Vivo45LogPacket logPacket = null;
while (time < Timeout)
{
if (LogStatus == LogStatus.Cancelled)
{
LogStatus = LogStatus.Idle;
throw new LogException("Cancelled", LogStatus.Cancelled);
}
logPacket = device.Messenger.GetNextLogPacket(v45Level);
if (logPacket == null || !logPacket.Ack)
{
LogStatus = LogStatus.Idle;
throw new Communication.CommunicationException("Error reading log message");
}
if (!ReadMessage(ref expectedMessageNo, logs, logPacket))
{
LogStatus = LogStatus.Idle;
throw new Communication.CommunicationException("Missed a log message");
}
RaiseStatus(expectedMessageNo, expectedMessageNo);
if (logPacket.LastPacket)
{
LogStatus = LogStatus.Completed;
RaiseStatus(expectedMessageNo, expectedMessageNo);
break;
}
time += Environment.TickCount - start;
start = Environment.TickCount;
}
LogStatus = LogStatus.Idle;
return(logs);
}
public bool ReadMessage(ref int expectedMessageNo, List <byte[]> logs, Vivo45LogPacket message)
{
logs.Add(message.data);
expectedMessageNo++;
return(true);
}
