/// <summary>
/// 创建一个读取报文任务
/// </summary>
/// <param name="identity">标识符</param>
/// <param name="enableBit">占用位</param>
/// <param name="filter">筛选器</param>
/// <param name="context">要传递的上下文</param>
public void Read(string identity, int enableBit, IReadFilter filter, object context = null)
{
Job4Agent job = new Job4Agent(identity, enableBit
, new AgentTask(null, filter, Action_Read, context));
Scheduler.AddJob(job);
}
public AgentTask(byte[] sendPacket, IReadFilter readFilter, string action, object context)
{
this.SendPacket = sendPacket;
this.ReadFilter = readFilter;
this.Action = action;
this.Context = context;
}
public virtual byte[] Read(IReadFilter filter, int readTimeOut, byte cmd)
{
long timeFlag = stopwatch.ElapsedMilliseconds;
do
{
if (Port.BytesToRead > 0)
{
System.Threading.Thread.Sleep(35);//V2.8修改
byte[] readBytes = new byte[Port.BytesToRead];
Port.Read(readBytes, 0, readBytes.Length);
if (!filter.Filter(readBytes))
{
break;
}
}
if (readTimeOut > 0 && stopwatch.ElapsedMilliseconds - timeFlag > readTimeOut)
// break;//读取不到时修改
{
if (cmd == 0x39 || cmd == 0xA9 || cmd == 0x90)
{
break;
}
throw new TimeoutException("读取超时");
}
} while (true);
var packet = filter.GetReadCode();
System.Diagnostics.Debug.Write("Read: ");
DEBUG_WirtePacket(packet);
System.Diagnostics.Debug.WriteLine("");
return(packet);
}
public virtual byte[] Read(IReadFilter filter, byte cmd)
{
if (filter.Timeout.HasValue)
{
return(Read(filter, filter.Timeout.Value, cmd));
}
else
{
return(Read(filter, Port.ReadTimeout, cmd));
}
}
public virtual byte[] SendAndRead(byte[] packet, IReadFilter filter)
{
if (Port.BytesToRead > 0)
{
byte[] buffer = new byte[Port.BytesToRead];
Port.Read(buffer, 0, buffer.Length);
}
Send(packet);
if (packet[2] == 0xF9)
{
return(Read(filter, 50, packet[2]));
}
else
{
return(Read(filter, packet[2]));
}
}
public AgentTask(byte[] sendPacket, IReadFilter readFilter, string action) : this(sendPacket, readFilter, action, null)
{
}
