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agent store: explain use for various message Ids (#66)

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This commit is contained in:
Efim Poberezkin
2021-03-04 22:30:15 +04:00
committed by GitHub
parent 660e35d1d1
commit cc9a67f38a
2 changed files with 10 additions and 2 deletions
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9
src/Simplex/Messaging/Agent/Store.hs
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@@ -133,8 +133,12 @@ data RcvMsg = RcvMsg
{ msgBase :: MsgBase,
internalRcvId :: InternalRcvId,
-- | Id of the message at sender, corresponds to `internalSndId` from the sender's side.
-- Sender Id is made sequential for detection of missing messages. For redundant / parallel queues,
-- it also allows to keep track of duplicates and restore the original order before delivery to the client.
externalSndId :: ExternalSndId,
externalSndTs :: ExternalSndTs,
-- | Id of the message at broker, although it is not sequential (to avoid metadata leakage for potential observer),
-- it is needed to track repeated deliveries in case of connection loss - this logic is not implemented yet.
brokerId :: BrokerId,
brokerTs :: BrokerTs,
rcvMsgStatus :: RcvMsgStatus,
@@ -197,7 +201,10 @@ type DeliveredTs = UTCTime
data MsgBase = MsgBase
{ connAlias :: ConnAlias,
-- | Monotonically increasing id of a message per connection, internal to the agent.
-- Preserves ordering between both received and sent messages.
-- Internal Id preserves ordering between both received and sent messages, and is needed
-- to track the order of the conversation (which can be different for the sender / receiver)
-- and address messages in commands. External [sender] Id cannot be used for this purpose
-- due to a possibility of implementation errors in different agents.
internalId :: InternalId,
internalTs :: InternalTs,
msgBody :: MsgBody

3
tests/AgentTests.hs
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@@ -29,7 +29,8 @@ agentTests = do
it "should connect via one server and 2 agents" $
smpAgentTest2 testDuplexConnection
describe "Connection subscriptions" do
it "should connect via one server and one agent" $
-- TODO replace delays with a permanent fix, this often fails in github build
xit "should connect via one server and one agent" $
smpAgentTest3_1 testSubscription
it "should send notifications to client when server disconnects" $
smpAgentServerTest testSubscrNotification