node.js - Detect if a fs writable stream is full -

i'm opening writable stream device (e.g: /dev/disk2) fs.createwritestream(). assuming don't know device size in advance, how correctly detect if device can't receive more data (e.g: device doesn't have more space)?

if simulate such scenario, eio error emitted stream:

error: eio: i/o error, write   @ error (native) errno: -5, code: 'eio', syscall: 'write', type: 'write' 

but eio generic, , can thrown in other situations well.

i'm inspecting properties of stream object once error thrown there doesn't seem exist flag use determine this.