Why HandleWrap is not managed by GC?

[贾凯]

I think nodejs can make HandleWrap to be Persist weak object, so v8 can collect the inaccessible object and close the underlying file descriptor automatically, but why it isn't ?

var net = require('net');

var PORT = 8000;

var tcpServer = net.createServer(function(socket) {

    console.log('new client');

    // after run out of this callback, `socket' becomes inaccessible, so v8 can collect it

});

tcpServer.listen(PORT);

[Ben Noordhuis]

HandleWraps are strongly persistent precisely so they don't
automatically close when the last reference to them goes away.

In your example, the next major GC would collect |tcpServer| and close
the server if handles were weak.