2 C#进程之间最简单的进程间通信方法是什么？

Question

我想要用C#编写的父进程和子进程之间的通信.它应该是异步的,事件驱动的.我不希望在处理非常罕见的通信的每个进程中运行一个线程.

什么是最好的解决方案？

Answer 1

匿名管道.

http://msdn.microsoft.com/en-us/library/bb546102.aspx

使用与BeginRead/BeginWrite和AsyncCallback的异步操作.

Answer 2

如果你的进程在同一台计算机上,你可以简单地使用stdio.

这是我的用法,一个网页截图:

var jobProcess = new Process();

jobProcess.StartInfo.FileName = Assembly.GetExecutingAssembly().Location;
jobProcess.StartInfo.Arguments = "job";

jobProcess.StartInfo.CreateNoWindow = false;
jobProcess.StartInfo.UseShellExecute = false;

jobProcess.StartInfo.RedirectStandardInput = true;
jobProcess.StartInfo.RedirectStandardOutput = true;
jobProcess.StartInfo.RedirectStandardError = true;

// Just Console.WriteLine it.
jobProcess.ErrorDataReceived += jp_ErrorDataReceived;

jobProcess.Start();

jobProcess.BeginErrorReadLine();

try
{
    jobProcess.StandardInput.WriteLine(url);
    var buf = new byte[int.Parse(jobProcess.StandardOutput.ReadLine())];
    jobProcess.StandardOutput.BaseStream.Read(buf, 0, buf.Length);
    return Deserz<Bitmap>(buf);
}
finally
{
    if (jobProcess.HasExited == false)
        jobProcess.Kill();
}

检测Main上的args

static void Main(string[] args)
{
    if (args.Length == 1 && args[0]=="job")
    {
        //because stdout has been used by send back, our logs should put to stderr
        Log.SetLogOutput(Console.Error); 

        try
        {
            var url = Console.ReadLine();
            var bmp = new WebPageShooterCr().Shoot(url);
            var buf = Serz(bmp);
            Console.WriteLine(buf.Length);
            System.Threading.Thread.Sleep(100);
            using (var o = Console.OpenStandardOutput())
                o.Write(buf, 0, buf.Length);
        }
        catch (Exception ex)
        {
            Log.E("Err:" + ex.Message);
        }
    }
    //...
}

Answer 3

我建议使用Windows Communication Foundation:

http://en.wikipedia.org/wiki/Windows_Communication_Foundation

您可以来回传递对象,使用各种不同的协议.我建议使用二进制tcp协议.

Answer 4

以下是异步进行进程间通信的方法：

1. 匿名管道https://learn.microsoft.com/en-us/dotnet/api/system.io.pipes.anonymouspipeserverstream?view=net-5.0
2. 命名管道https://www.codeproject.com/Articles/1179195/Full-Duplex-Asynchronous-Read-Write-with-Named-Pip
3. 套接字https://learn.microsoft.com/en-us/dotnet/framework/network-programming/asynchronous-server-socket-example
4. 共享内存

Answer 5

WCF上的命名管道.

http://msdn.microsoft.com/en-us/library/ms733769.aspx