Commit Graph

9 Commits (381de776c4878dd9af76b126cfa37bc80cad363f)

Author SHA1 Message Date
Brad Fitzpatrick 381de776c4 syncs: start working on mutex debugging, registration
Updates #17852

Change-Id: Ib1b634eedd30cc4006bc1b39aa8d479d37c5f1f2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
19 hours ago
Brad Fitzpatrick a40f23ad4a util/eventbus: flesh out docs a bit
Updates #cleanup

Change-Id: Ia6b0e4b0426be1dd10a777aff0a81d4dd6b69b01
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 months ago
Nick Khyl 866614202c util/eventbus: remove redundant code from eventbus.Publish
eventbus.Publish() calls newPublisher(), which in turn invokes (*Client).addPublisher().
That method adds the new publisher to c.pub, so we don’t need to add it again in eventbus.Publish.

Updates #cleanup

Signed-off-by: Nick Khyl <nickk@tailscale.com>
6 months ago
David Anderson 853abf8661 util/eventbus: initial debugging facilities for the event bus
Enables monitoring events as they flow, listing bus clients, and
snapshotting internal queues to troubleshoot stalls.

Updates #15160

Signed-off-by: David Anderson <dave@tailscale.com>
9 months ago
David Anderson e80d2b4ad1 util/eventbus: add debug hooks to snoop on bus traffic
Updates #15160

Signed-off-by: David Anderson <dave@tailscale.com>
9 months ago
David Anderson a1192dd686 util/eventbus: track additional event context in publish queue
Updates #15160

Signed-off-by: David Anderson <dave@tailscale.com>
9 months ago
David Anderson 24d4846f00 util/eventbus: adjust worker goroutine management helpers
This makes the helpers closer in behavior to cancelable contexts
and taskgroup.Single, and makes the worker code use a more normal
and easier to reason about context.Context for shutdown.

Updates #15160

Signed-off-by: David Anderson <dave@tailscale.com>
9 months ago
David Anderson 3e18434595 util/eventbus: rework to have a Client abstraction
The Client carries both publishers and subscribers for a single
actor. This makes the APIs for publish and subscribe look more
similar, and this structure is a better fit for upcoming debug
facilities.

Updates #15160

Signed-off-by: David Anderson <dave@tailscale.com>
9 months ago
David Anderson ef906763ee util/eventbus: initial implementation of an in-process event bus
Updates #15160

Signed-off-by: David Anderson <dave@tailscale.com>
Co-authored-by: M. J. Fromberger <fromberger@tailscale.com>
9 months ago