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RPC Client doesn't gracefully close Websocket Connections #30482
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Odd. In defer func() {
close(c.closing)
if reading {
conn.close(ErrClientQuit, nil)
c.drainRead()
}
close(c.didClose)
}() At some point, I'd have expected that to trickle down to the func (c *Conn) SetCloseHandler(h func(code int, text string) error) {
if h == nil {
h = func(code int, text string) error {
message := FormatCloseMessage(code, "")
c.WriteControl(CloseMessage, message, time.Now().Add(writeWait))
return nil
}
}
c.handleClose = h
} |
So
This in turn calls Close on the Gorrillas WS conn as you say.
This function unfortunately just closes the TPC connection. The Close Handler only gets called if a CloseMessage is received. |
Hm, it seems this is a long-standing issue in gorilla/websocket: gorilla/websocket#448 |
Yeah not sure if they are going to include or if they expect devs to implement themselves. When I use gorilla/websocket I tend to do something like this to solve the issue:
Unfortunately this isn't possible with rpc Client as I don't have access to the WS conn itself. |
System information
Geth version:
1.14.8
OS & Version: OSX
Expected behaviour
When rpc.Client Close() is called, I would expect a message like this to be sent
Actual behaviour
The client closes the TCP conn without sending a WS Close message, leading to
websocket: close 1006 (abnormal closure): unexpected EOF
on the server side.Steps to reproduce the behaviour
Open a WS connection with the rpc.Client. Close the connection.
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