private void onEvent(Event evt)
{
switch (evt.Code)
{
case ExternalModuleHost.ModuleHelper.ID_Event_VariableValuesChanged:
var values = BinSeri.VariableValue_Serializer.Deserialize(evt.Payload);
notifier?.Notify_VariableValuesChanged(values);
break;
case ExternalModuleHost.ModuleHelper.ID_Event_ConfigChanged:
var objects = StdJson.ObjectFromUtf8Stream <List <ObjectRef> >(evt.Payload);
if (objects != null)
{
notifier?.Notify_ConfigChanged(objects);
}
break;
case ExternalModuleHost.ModuleHelper.ID_Event_AlarmOrEvent:
var ae = StdJson.ObjectFromUtf8Stream <AlarmOrEventInfo>(evt.Payload);
if (ae != null)
{
notifier?.Notify_AlarmOrEvent(ae);
}
break;
default:
logger.Error("Unknown event code: " + evt.Code);
break;
}
}
private async Task <RequestBase> GetRequestObject(HttpRequest request, ReqDef def)
{
const string mediaBinary = "application/octet-stream";
using (var memoryStream = MemoryManager.GetMemoryStream("HandleClientRequest")) {
using (var body = request.Body) {
await body.CopyToAsync(memoryStream).ConfigureAwait(false);
}
memoryStream.Seek(0, SeekOrigin.Begin);
RequestBase ret;
bool binaryRequest = request.ContentType == mediaBinary;
if (binaryRequest)
{
ret = def.MakeRequestObject();
using (var reader = new BinaryReader(memoryStream, Encoding.UTF8, leaveOpen: false)) {
BinSerializable x = (BinSerializable)ret;
x.BinDeserialize(reader);
}
}
else
{
ret = (RequestBase)(StdJson.ObjectFromUtf8Stream(memoryStream, def.ReqType) ?? throw new Exception("Request via JSON is null"));
}
var accept = request.Headers["Accept"];
bool binaryResponse = accept.Any(a => a.Contains(mediaBinary));
ret.ReturnBinaryResponse = binaryResponse;
return(ret);
}
}
private async Task <T> SendRequest <T>(ModuleMsg requestMsg)
{
using (Response res = await connection.SendRequest(requestMsg.GetMessageCode(), stream => StdJson.ObjectToStream(requestMsg, stream))) {
if (res.Success)
{
return(StdJson.ObjectFromUtf8Stream <T>(res.SuccessPayload));
}
else
{
throw new Exception(res.ErrorMsg);
}
}
}
private static async Task Loop(TcpConnectorSlave connector, ModuleBase module)
{
Process parentProcess = null;
using (Request request = await connector.ReceiveRequest()) {
if (request.Code != ModuleHelper.ID_ParentInfo)
{
throw new Exception("Missing ParentInfo request (update MediatorLib.dll)");
}
ParentInfoMsg info = StdJson.ObjectFromUtf8Stream <ParentInfoMsg>(request.Payload);
parentProcess = Process.GetProcessById(info.PID);
connector.SendResponseSuccess(request.RequestID, s => { });
}
Thread t = new Thread(() => { ParentAliveChecker(parentProcess); });
t.IsBackground = true;
t.Start();
var helper = new ModuleHelper(module, connector);
bool run = true;
while (run)
{
using (Request request = await connector.ReceiveRequest()) {
helper.ExecuteModuleRequestAsync(request);
bool shutdown = request.Code == ModuleHelper.ID_Shutdown;
bool initAbort = request.Code == ModuleHelper.ID_InitAbort;
run = !shutdown && !initAbort;
}
}
// Wait until parent process kills us (after Run method completed)
while (true)
{
await Task.Delay(1000);
}
}
private void onEvent(Event evt)
{
switch (evt.Code)
{
case ExternalModuleHost.ModuleHelper.ID_Event_VariableValuesChanged:
var values = StdJson.ObjectFromUtf8Stream <VariableValue[]>(evt.Payload);
notifier.Notify_VariableValuesChanged(values);
break;
case ExternalModuleHost.ModuleHelper.ID_Event_ConfigChanged:
var objects = StdJson.ObjectFromUtf8Stream <ObjectRef[]>(evt.Payload);
notifier.Notify_ConfigChanged(objects);
break;
case ExternalModuleHost.ModuleHelper.ID_Event_AlarmOrEvent:
var ae = StdJson.ObjectFromUtf8Stream <AlarmOrEventInfo>(evt.Payload);
notifier.Notify_AlarmOrEvent(ae);
break;
default:
logger.Error("Unknown event code: " + evt.Code);
break;
}
}
private static T Deserialize <T>(MemoryStream stream) => StdJson.ObjectFromUtf8Stream <T>(stream);
private static T Deserialize<T>(MemoryStream stream) => StdJson.ObjectFromUtf8Stream<T>(stream) ?? throw new Exception("Unexpected null value");
