9f78da68ac
The varlink_collect_full function did not set varlink client's state
when the reply was an error. The state was stuck in "collecting-reply".
I discovered that while hacking on network varlink interface (adding a
new varlink method). The debug logs shows the process of performing the
first query which replies with an error:
varlink: Setting state idle-client
network: Sending message: {"method":"io.systemd.Network.LLDPNeighbors","parameters":{"ifindex":1},"more":true}
network: Changing state idle-client → collecting
network: Received message: {"error":"org.varlink.service.MethodNotFound","parameters":{"method":"io.systemd.Network.LLDPNeighbors"}}
network: Changing state collecting → collecting-reply
Now another varlink_collect call is being made, but
network: Connection busy.
Failed to execute varlink call: Device or resource busy
This was not caught by the tests because there were no varlink_collect
calls that resulted in error reply.
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