/// <summary>
/// 设置数据
/// </summary>
/// <param name="dataName">请求点集合名称</param>
/// <param name="dataList">点数据集合</param>
/// <returns></returns>
public override int SetData(string dataName, Hashtable dataList)
{
int result = 1;
pb_data_sensor_list data_sensor_list = new pb_data_sensor_list();
try
{
foreach (var data in dataList.Values)
{
data_sensor_list.PbDataSensors.Add((pb_data_sensor)data);
}
MemoryStream mStream = new MemoryStream();
data_sensor_list.WriteTo(mStream);
result = Rtds.rtds_set_data(mStream.ToArray(), mStream.ToArray().Length);
if (result != 1)
{
log.Debug(string.Format("SetData Error：calling rtds_set_data method ，method returns：{0}", result));
result = (int)eErrorCode.SETDATA_ERR;
}
}
catch (Exception ex)
{
result = (int)eErrorCode.SETDATA_ERR;
log.Debug(string.Format("SetData Error：set data failed，because {0}", ex.Message.ToString()));
}
return(result);
}
/// <summary>
/// 构造函数
/// </summary>
public RDB()
{
try
{
// 读取标签点配置文件及开辟空间 返回 0 成功
int result = 1;
result = Rtds.rtds_init();
if (result != 1)
{
log.Debug(string.Format("rtds init failed，calling rtds_init method back result： {0}", result));
}
else
{
log.Info("rtds init success");
}
}
catch (Exception ex)
{
log.Debug(string.Format("rtds init failed，because {0}", ex.Message.ToString()));
}
}
/// <summary>
/// 开始读取数据并更新内存AllDataDict
/// </summary>
/// <param name="configObj">配置项名称</param>
private void Work(object configObj)
{
string configName = configObj.ToString();
// 获取数据更新周期
int cycle = 0;
foreach (KeyValuePair <string, PbConfig> kvp in AllConfigDict)
{
if (kvp.Key == configName)
{
cycle = ((pb_config_rtds)kvp.Value).UpdateCycle;
break;
}
}
while (GetThreadStt(configName))
{
var now = DateTime.Now;
try
{
pb_data_sensor_list pbDataList = new pb_data_sensor_list();
foreach (KeyValuePair <string, List <string> > kvp in TagAndConfigDict)
{
if (kvp.Value.Contains(configName))
{
pb_data_sensor dataObject = new pb_data_sensor();
dataObject.Name = kvp.Key;
pbDataList.PbDataSensors.Add(dataObject);
}
}
MemoryStream mStream = new MemoryStream();
pbDataList.WriteTo(mStream);
// 定义这个c#中用来接收c++返回数据的指针类型
IntPtr unmanaged_ptr = IntPtr.Zero;
int length = Rtds.rtds_get_cur_data(mStream.ToArray(), mStream.ToArray().Length, out unmanaged_ptr);
if (length > 0)
{
byte[] managed_data = new byte[length];
// 将非托管内存拷贝成托管内存，才能在c#里面使用
Marshal.Copy(unmanaged_ptr, managed_data, 0, length);
// 遍历返回标签点数据 并更新到内存中
pb_data_sensor_list data_sensor_list = pb_data_sensor_list.Parser.ParseFrom(managed_data);
foreach (pb_data_sensor pb_data_sensor in data_sensor_list.PbDataSensors)
{
if (AllDataDict.ContainsKey(pb_data_sensor.Name))
{
((pb_data_sensor)AllDataDict[pb_data_sensor.Name]).Type = pb_data_sensor.Type;
((pb_data_sensor)AllDataDict[pb_data_sensor.Name]).Size = pb_data_sensor.Size;
((pb_data_sensor)AllDataDict[pb_data_sensor.Name]).Value = pb_data_sensor.Value;
((pb_data_sensor)AllDataDict[pb_data_sensor.Name]).Time = pb_data_sensor.Time;
((pb_data_sensor)AllDataDict[pb_data_sensor.Name]).Quality = pb_data_sensor.Quality;
((pb_data_sensor)AllDataDict[pb_data_sensor.Name]).Status = pb_data_sensor.Status;
((pb_data_sensor)AllDataDict[pb_data_sensor.Name]).Unit = pb_data_sensor.Unit;
}
}
// 清理C++内存空间
Rtds.rtds_release_mem(out unmanaged_ptr);
}
else
{
log.Debug(string.Format("GetData Error：calling rtds_get_cur_data method，method returns data length：{0}", length));
}
// 实时更新状态 为已运行 3
SetRtdsStatus("3");
}
catch (Exception ex)
{
// 实时更新状态 为异常 4
SetRtdsStatus("4");
log.Debug(string.Format("GetData Error：update cache data failed，because {0}", ex.Message.ToString()));
}
// 如果数据更新周期为0 则只取一次数据
if (cycle == 0)
{
break;
}
else
{
var cur = DateTime.Now;
TimeSpan ts = cur - now;
if (ts.TotalMilliseconds < cycle * 1000)
{
Thread.Sleep(cycle * 1000 - (int)ts.TotalMilliseconds);
}
}
}
}