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8 commits

Author SHA1 Message Date
David Calavera
434d2e8745 Add PubSub topics.
A TopicFunc is an interface to let the pubisher decide whether it needs
to send a message to a subscriber or not. It returns true if the
publisher must send the message and false otherwise.

Users of the pubsub package can create a subscriber with a topic
function by calling `pubsub.SubscribeTopic`.

Message delivery has also been modified to use concurrent channels per
subscriber. That way, topic verification and message delivery is not
o(N+M) anymore, based on the number of subscribers and topic verification
complexity.

Using pubsub topics, the API stops controlling the message delivery,
delegating that function to a topic generated with the filtering
provided by the user. The publisher sends every message to the
subscriber if there is no filter, but the api doesn't have to select
messages to return anymore.

Signed-off-by: David Calavera <david.calavera@gmail.com>
2015-12-02 16:43:49 -05:00
Alexander Morozov
bc6ad1608c Don't use time.After if there is no timeout
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
2015-07-14 09:14:51 -07:00
Alexander Morozov
7080f5d1cf Add docstring to pubsub.Publisher
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
2015-07-14 09:10:14 -07:00
Alexander Morozov
8aa7ba731a Race test for pkg/pubsub package
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
2015-07-13 09:05:47 -07:00
Alexander Morozov
e5da4d62ef Benchmark for pkg/pubsub package
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
2015-07-13 09:02:16 -07:00
Chun Chen
a408790de8 Fix send on closed channel bug
Signed-off-by: Chun Chen <chenchun.feed@gmail.com>
2015-06-12 15:42:34 +08:00
Michael Crosby
217a2bd1b6 Remove publisher if no one is listening
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
2015-01-20 20:21:47 -08:00
Michael Crosby
2f46b7601a Add pubsub package to handle robust publisher
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
2015-01-20 20:21:46 -08:00