Make token serializing/deserializing async (#8427)

The idea is that in future tokens will encode a mapping of instance to position. However, we don't want to include the full instance name in the string representation, so instead we'll have a mapping between instance name and an immutable integer ID in the DB that we can use instead. We'll then do the lookup when we serialize/deserialize the token (we could alternatively pass around an `Instance` type that includes both the name and ID, but that turns out to be a lot more invasive).
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Erik Johnston 2020-09-30 20:29:19 +01:00 committed by GitHub
parent a0a1ba6973
commit 7941372ec8
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17 changed files with 115 additions and 59 deletions

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@ -1077,11 +1077,13 @@ class RoomContextHandler:
# the token, which we replace.
token = StreamToken.START
results["start"] = token.copy_and_replace(
results["start"] = await token.copy_and_replace(
"room_key", results["start"]
).to_string()
).to_string(self.store)
results["end"] = token.copy_and_replace("room_key", results["end"]).to_string()
results["end"] = await token.copy_and_replace(
"room_key", results["end"]
).to_string(self.store)
return results