|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
When beginning to handle a WebSocket connection, we shall create a new
context, with the request context as its parent. We use the new context
for everything from now on, except for reporting error messages, which
is handled by creating a reportError function in a closure in
makeReportError and passing it along to command-handling functions.
Note that if one user attempts to rapidly launch WebSocket connections,
there might still be a race condition where the old connection hasn't
been completely established yet (i.e. an entry hasn't been added to
cancelPool) and the new connection isn't able to cancel the old
connection. I'm a bit tired to think of a solution now but it could
probably be solved by moving the cancellation registration and
cancelling sooner during the initial handshake.
Note that more parts of the event loop needs to select from ctx.Done
(from newCtx) for this to work reliably.
|