public static unsafe void Run(string id = "", bool isTask = false)
{
StreamWriter outputFile;
TextWriter stdout = null;
if (!isTask)
{
outputFile = File.CreateText(id + OUTPUT_PATH);
outputFile.AutoFlush = true;
stdout = Console.Out;
Console.SetOut(outputFile);
}
string mmf_file_path = GetTempPath(id);
while (true)
{
using (var pipe = new NamedPipeServerStream(PIPE_NAME_PREFIX + id, PipeDirection.InOut, 1))
using (var mmf = MemoryMappedFile.CreateFromFile(
File.Open(mmf_file_path, FileMode.OpenOrCreate),
null, 10000, MemoryMappedFileAccess.ReadWrite, HandleInheritability.None, false))
using (MemoryMappedViewAccessor view = mmf.CreateViewAccessor())
{
byte *mmfPtr = null;
view.SafeMemoryMappedViewHandle.AcquirePointer(ref mmfPtr);
Console.WriteLine($"Server({id}) started. Waiting for the client.....");
pipe.WaitForConnection();
Console.WriteLine("Python client connected!");
try
{
using (BinaryWriter bw = new BinaryWriter(pipe))
using (BinaryReader br = new BinaryReader(pipe))
{
bw.Write(Encoding.Default.GetBytes(mmf_file_path));
while (true)
{
byte function_id = br.ReadByte();
if (function_id == (byte)FunctionId.Terminate)
{
CTS.Cancel();
if (!isTask)
{
Console.SetOut(stdout);
}
return;
}
else if (function_id == (byte)FunctionId.NewThread)
{
//int len = br.ReadInt32();
//string threadId = Encoding.Default.GetString(br.ReadBytes(len));
int threadId = br.ReadInt32();
Console.WriteLine($"New Thread {threadId} is created.");
RunningThreads.Add(
Task.Factory.StartNew(() =>
Run(id + threadId, true), CTS.Token));
bw.Write((byte)4);
continue;
}
//Debug.WriteLine($"Function {function_id} is requested");
List <dynamic> arguments = new List <dynamic>();
while (true)
{
char type = br.ReadChar();
if (type == 'i')
{
arguments.Add(br.ReadInt32());
}
else if (type == 'b')
{
arguments.Add(br.ReadBoolean());
}
else if (type == 's')
{
int len = br.ReadInt32();
string str = Encoding.Default.GetString(br.ReadBytes(len));
arguments.Add(str);
}
else if (type == 'o')
{
var bytes = br.ReadBytes(Option.Size);
unsafe
{
fixed(byte *ptr = bytes)
{
Option *opPtr = (Option *)ptr;
arguments.Add(*opPtr);
}
}
}
else if (type == '4') // End of Transmission
{
break;
}
else
{
Console.WriteLine("Undefined value is received: " + type);
break;
}
}
try
{
int size = FunctionTable.CallById((FunctionId)function_id, arguments, in mmfPtr);
//Debug.WriteLine($"Server writes a structure of size {size} to mmf");
bw.Write(size); // Send the size of returned structure.
}
catch (Exception e)
{
Console.WriteLine(e.Message);
Console.WriteLine(e.StackTrace);
}
}
}
}
catch (IOException e)
{
Console.WriteLine("ERROR: " + e.Message);
Console.WriteLine("Connection closed.");
}
}
}
}
