Clients can now subscribe to the webhooks get_status() info to
determine if the printer state changes. It is no longer needed to
send a message to all clients on a shutdown transition.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Implement a new subscription system for get_status() updates.
Subscriptions are per-client. After an initial update, only changes
will be transmitted. Responses are only transmitted to the client
that issued the subscription.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add a new "gcode/subscribe_output" webhook endpoint to subscribe to
gcode output. Only client connections that subscribe to the gcode
output will receive that output.
This also moves all the gcode webhooks from gcode.py to webhooks.py
and arranges for gcode.py to be initialized prior to webhooks.py.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Use the "info" webhook to pass critical process information back to
the caller. The remaining users of register_static_path() can get the
required information via get_status() calls.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Don't default to "/tmp/klippy_uds" for the webhooks unix domain socket
filename. Instead, require the filename to be specified on the
command-line (via a new "-a" parameter).
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This prevents ClientConnection.send() from blocking, removing the possibility that callers become reentrant.
Signed-off-by: Eric Callahan <arksine.code@gmail.com>
This class provides endpoints that allow connected hosts to fetch the state of printer objects and subscribe to state "pushed" over the connection.
Signed-off-by: Eric Callahan <arksine.code@gmail.com>
Changing this check from debugoutput to debuginput allows remote applications to perform tests against Klippy without an MCU connected.
Signed-off-by: Eric Callahan <arksine.code@gmail.com>
Kevin O'Connor
Arksine