Where can I see the file descriptor associated with a TcpStream?

help
1

I'm new to Rust and was testing TcpStream. I noticed that Rust uses file descriptor in Linux.

The print below shows that the file descriptor number is 4.

618×421 20.4 KB

But when I go to check the symbolic links in the process's fd folder, 4 doesn't appear .

How does this work in Rust ?

2

Are you sure you were inspecting the right process (the forum process, not cargo run)?