This enables e.g. `--set position.position_flags ALTITUDE,SPEED`
rather than the dedicated `--pos-flags`, and similarly for
`network.enabled_protocols`.
Displaying these named values when printing out configurations
is not yet implemented.
ROUTING_APP with errorReason NONE is an ACK (success), not an error.
Only print failure message for non-NONE error reasons.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
If connect() or waitForConfig() raises during __init__ (handshake timeout,
bad stream, config error), the reader thread started by connect() keeps
running and the underlying stream/socket stays open — but the caller never
receives a reference to the half-initialized instance, so they cannot call
close() themselves. The leak compounds on every retry from a caller's
reconnect loop.
Fix: wrap connect() + waitForConfig() in try/except; call self.close() on
any exception before re-raising. Also guard close() against RuntimeError
from joining an unstarted reader thread (happens when close() runs from
a failed __init__ before connect() could spawn it).
Discovered while debugging a real-world Meshtastic firmware crash where
a passive logger's retrying TCPInterface() calls against a node with
250-entry NodeDB produced a reconnect storm — every retry triggered a
full config+NodeDB dump on the node, compounding heap pressure, which
then exposed null-deref bugs in Router::perhapsDecode / MeshService
(firmware side fixed in meshtastic/firmware#10226 and #10229). The
client-side leak is independent of those firmware bugs and worth fixing
on its own.
* Moving to socket.sendall() is safer, as sendall will send the entire
buffer, while send() would return the number of bytes sent and
require being called multiple times if the buffer was full.
* On exceptions: reconnect to the server.
* On reconnection: make sure using a lock that there isn't a race
between the readers and the writers triggering a reconnect.
