问题
I need to double-fork vmware so it doesn't inherit the terminal ID (TTY/pts).
This is what I have so far, but I can't get access to the runtime.exec process to fork another process (which removes the terminal ID).
Runtime runtime = Runtime.getRuntime();
Process proc = runtime.exec("vmware");
Is there a way to "daemonize" in Java?
回答1:
You will need to write a small C or C++ program to do the extra fork, setsid, all that stuff.
回答2:
To make your life easier with this, you essentially need to disconnect the application from the shell by closing the input / output streams that are implicitly connected to the current terminal.
To make this simpler fro yourself, have a look at the akuma project. This would be a cleaner solution in plain Java without any need for C wrappers.
Here is a blog post discussing it.
回答3:
You don't actually need to "double fork" in order to do this, only a single fork is necessary. Then the child should close stdin, out, error and start a new session.
来源：https://stackoverflow.com/questions/2151214/is-it-possible-to-double-fork-a-process-in-java