"Pipe is broken" 带有 C++ 后端的 C# .NET 管道 (WINDOWS)

"Pipe is broken" C# .NET pipe with C++ backend (WINDOWS)

所以我目前正在用管道做一些有趣的工作。我有一个 C++ 可注入 dll,我将其注入到一个进程中以获取有关信息并向我的 C# GUI 报告。我正在使用管道在后端和前端之间进行通信。这工作正常,但是当我尝试与 C++ 可注入程序通信时,我收到 "Pipe is broken." 错误。

在我的 c++ dll 中,我有以下内容:

HANDLE Pipe = CreateNamedPipe("\\.\pipe\TestPipe",
PIPE_ACCESS_DUPLEX,
PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | PIPE_WAIT,
PIPE_UNLIMITED_INSTANCES,
999999,
999999,
NMPWAIT_USE_DEFAULT_WAIT,
NULL);

void PipeThread() 
{
    int numbuff;
    DWORD dwRead;

    while (Pipe != INVALID_HANDLE_VALUE)
    {
        if (ConnectNamedPipe(Pipe, NULL) != FALSE)
        {
            if (ReadFile(Pipe, (LPVOID)numbuff, sizeof(int), &dwRead, NULL) != FALSE)
            {
                std::stringstream o;
                o << numbuff << "\r\n";
                Output(o.str());
                char buff[numbuff];
                while (ReadFile(Pipe, buff, numbuff, &dwRead, NULL) != FALSE)
                {
                    Output(std::string(buff)+"\r\n");
                }
            }
        }
        DisconnectNamedPipe(Pipe); 
    }
}

^ 我已经确认线程是 运行

在我的 C# GUI 中,我有这样的东西:

private void button1_Click(object sender, EventArgs e)
    {
        if (!connected)
            return;
        using (var pipe = new NamedPipeClientStream(".", "TestPipe", PipeDirection.Out))
        {
            pipe.Connect();
            byte[] outBuffer = Encoding.ASCII.GetBytes(TextBox.Text);
            byte[] strSize = BitConverter.GetBytes(outBuffer.Length);
            pipe.Write(strSize, 0, strSize.Length);
            pipe.Write(outBuffer, 0, outBuffer.Length);
            pipe.Flush();
        }
    }

然而,当 运行 我从 .NET 收到 "Pipe is broken" 错误。为什么会这样?

您尝试过使用 StreamWriter 吗?

private void button1_Click(object sender, EventArgs e) { if (!connected) return; using (var pipe = new NamedPipeClientStream(".", "TestPipe", PipeDirection.Out)) { using (var stream = new StreamWriter(pipe)) { pipe.Connect(); stream.Write(TextBox.Text); pipe.Flush(); } } }