/// <summary>
/// Adds the device to the communication line, eliminating duplication of devices.
/// </summary>
private void AddDevice(DeviceLogic deviceLogic)
{
if (!deviceMap.ContainsKey(deviceLogic.DeviceNum))
{
DeviceWrapper deviceWrapper = new DeviceWrapper(deviceLogic, Log)
{
InfoFileName = Path.Combine(coreLogic.AppDirs.LogDir,
CommUtils.GetDeviceLogFileName(deviceLogic.DeviceNum, ".txt"))
};
devices.Add(deviceWrapper);
deviceMap.Add(deviceLogic.DeviceNum, deviceWrapper);
if (deviceLogic.NumAddress > 0)
{
deviceByNumAddr[deviceLogic.NumAddress] = deviceLogic;
}
if (!string.IsNullOrEmpty(deviceLogic.StrAddress))
{
deviceByStrAddr[deviceLogic.StrAddress] = deviceLogic;
}
if (maxDeviceTitleLength < deviceLogic.Title.Length)
{
maxDeviceTitleLength = deviceLogic.Title.Length;
}
}
}
/// <summary>
/// Removes, validates and returns the command at the beginning of the queue.
/// </summary>
private bool DequeueCommand(DateTime utcNow, out TeleCommand cmd, out DeviceWrapper deviceWrapper)
{
bool queueIsNotEmpty = true;
bool commandIsValid = false;
cmd = null;
deviceWrapper = null;
while (queueIsNotEmpty && !commandIsValid)
{
lock (commands)
{
queueIsNotEmpty = commands.Count > 0;
cmd = queueIsNotEmpty ? commands.Dequeue() : null;
}
if (cmd != null)
{
if (cmd.CmdTypeID != CmdTypeID.Standard)
{
Log.WriteError(Locale.IsRussian ?
"Команда с недопустимым типом {0}, отклонена" :
"Command with invalid type {0} is rejected", cmd.CmdTypeID);
}
else if (utcNow - cmd.CreationTime > ScadaUtils.CommandLifetime)
{
Log.WriteError(Locale.IsRussian ?
"Устаревшая команда для КП {0} отклонена" :
"Outdated command to the device {0} is rejected", cmd.DeviceNum);
}
else if (!deviceMap.TryGetValue(cmd.DeviceNum, out deviceWrapper))
{
Log.WriteError(Locale.IsRussian ?
"Команда с недопустимым КП {0}, отклонена" :
"Command with invalid device {0} is rejected", cmd.DeviceNum);
}
else if (!deviceWrapper.DeviceLogic.CanSendCommands)
{
Log.WriteError(Locale.IsRussian ?
"КП {0} не поддерживает отправку команд" :
"The device {0} does not support sending commands");
}
else
{
commandIsValid = true;
}
}
}
if (commandIsValid)
{
return(true);
}
else
{
cmd = null;
deviceWrapper = null;
return(false);
}
}
/// <summary>
/// Adds the device to the communication line.
/// </summary>
private void AddDevice(DeviceLogic deviceLogic)
{
if (!deviceMap.ContainsKey(deviceLogic.DeviceNum))
{
DeviceWrapper deviceWrapper = new DeviceWrapper(deviceLogic, Log)
{
InfoFileName = Path.Combine(coreLogic.AppDirs.LogDir,
CommUtils.GetDeviceLogFileName(deviceLogic.DeviceNum, ".txt"))
};
devices.Add(deviceWrapper);
deviceMap.Add(deviceLogic.DeviceNum, deviceWrapper);
if (maxDeviceTitleLength < deviceLogic.Title.Length)
{
maxDeviceTitleLength = deviceLogic.Title.Length;
}
}
}
/// <summary>
/// Schedules a priority poll the device.
/// </summary>
private void PollWithPriority(DeviceWrapper deviceWrapper)
{
lock (priorityPoll)
{
// check if the device poll is already enqueued
int deviceNum = deviceWrapper.DeviceLogic.DeviceNum;
bool deviceFound = false;
foreach (DeviceWrapper d in priorityPoll)
{
if (d.DeviceLogic.DeviceNum == deviceNum)
{
deviceFound = true;
break;
}
}
// enqueue a poll
if (!deviceFound)
{
priorityPoll.Enqueue(deviceWrapper);
}
}
}