- Add an accessor property `initialized `to FSEventWrap to
check the state of the handle from the JS land
- Introduce ERR_FS_WATCHER_ALREADY_STARTED so calling start()
on a watcher that is already started will throw instead of
doing nothing silently.
- Introduce ERR_FS_WATCHER_NOT_STARTED so calling close()
on a watcher that is already closed will throw instead of
doing nothing silently.
- Validate the filename passed to fs.watch()
- Assert that the handle in the watcher are instances of
FSEvent instead of relying on the illegal invocation error
from the VM.
- Add more assertions in FSEventWrap methods now that we check
`initialized` and the filename in JS land before invoking
the binding.
- Use uvException instead of errornoException to create
the errors with the error numbers from libuv to make them
consistent with other errors in fs.
TODO:
- Improve fs.watchFile() the same way this patch improves fs.watch()
- It seems possible to fire both rename and change event from libuv
together now that we can check if the handle is closed via
`initialized` in JS land.
PR-URL: https://github.com/nodejs/node/pull/19089
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>