如何从实时文件中读取行？

Question

I've got 2 apps, one writes lines to a file, the other reads as the file is written. The issue comes from regarding the file as a queue and not as a stream. the writing is per line. reading with StreamReader::ReadLine. The issue is that i'm getting only part of the line, so parsing fails. What is the best way to solve this issue?

Answer 1

.NET Framework offers a PipeStream and derived classes for inter-process communication on a local machine as a client-server using a stream in memory, not a file as in Unix as can be done using semaphores and queued pipes.

If you need one process populating a file, you can do that it send new data after written in the file to the other process using such stream pipe.

For example, in the server process:

void ProcessNewData(string /* or any type needed */ content)
{
  WriteNewDataToFile(content);
  SendNewDataToClient(content);
}

Here is an article that explain things in addition to the Microsoft documentation:

Full Duplex Asynchronous Read/Write with Named Pipes (CodeProject)

You can also use any inter-process technology you want: Remoting, WCF...

Inter Process Communication (C# Vault)