nim-dagger/codex/utils/timer.nim
Ben Bierens 9c8a59d150
Blockstore maintenance (#347)
* setting up

* Implements timer utility

* applies async and cancellation to timer loop

* Sets up mocktimer and mockblockstore to set up first maintenance module test

* wip: first test that calls blockChecker

* wip: adding user type to timer callback

* Chronicles doesn't like type-arguments? Disables logging in timer module for now

* Implementing block check test for blockMaintainer module

* Sets up additional tests for blockmaintainer

* Removes generic from timer module. Implements numberOfBlocks per interval in blockMaintainer.

* Implements blockMaintainer

* Sets up tests for blockChecker

* Some comments by Mark

* Cleanup repostore tests

* Setting up the use of std/times for block TTL tracking

* repostore adds expiration timestamp

* Defaults the repostore clock to the system clock

* Applies updates to repostore interface.

* Implements retrieving of block expiration information from repostore

* Sets up tests for maintenance module behavior

* Implements block maintenance module

* Wires maintenance module into codex. Sets up integration tests for block expiration

* Sets up test for missing behavior: removing timestamp metadata on block delete

* Implements removing of expiration metadata in repoStore

* Fixes integration tests for block expiration

* Adds block expiration tests to integration test run

* Handled some comments by Dmitriy

* Review comment by Dmitriy: Removes seq[cid] from runBlockCheck

* Review comment by Dmitriy: Moves key formatting methods to keyutils.

* Review comment by Dmitriy: Encodes durations using chronos

* Fixes conversion of TTL type in conf.

* Review comments by Dmitriy

* Adds unit tests for keyUtils.

* Adds test coverage for exception in maintenance module
2023-03-08 16:04:54 +01:00

51 lines
1.4 KiB
Nim

## Nim-Codex
## Copyright (c) 2023 Status Research & Development GmbH
## Licensed under either of
## * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
## * MIT license ([LICENSE-MIT](LICENSE-MIT))
## at your option.
## This file may not be copied, modified, or distributed except according to
## those terms.
## Timer
## Used to execute a callback in a loop
import pkg/chronos
import pkg/chronicles
import pkg/upraises
type
TimerCallback* = proc(): Future[void] {.gcsafe, upraises:[].}
Timer* = ref object of RootObj
callback: TimerCallback
interval: Duration
name: string
loopFuture: Future[void]
proc new*(T: type Timer, timerName = "Unnamed Timer"): T =
T(
name: timerName
)
proc timerLoop(timer: Timer) {.async.} =
try:
while true:
await timer.callback()
await sleepAsync(timer.interval)
except CatchableError as exc:
error "Timer caught unhandled exception: ", name=timer.name, msg=exc.msg
method start*(timer: Timer, callback: TimerCallback, interval: Duration) {.base.} =
if timer.loopFuture != nil:
return
trace "Timer starting: ", name=timer.name
timer.callback = callback
timer.interval = interval
timer.loopFuture = timerLoop(timer)
method stop*(timer: Timer) {.async, base.} =
if timer.loopFuture != nil:
trace "Timer stopping: ", name=timer.name
await timer.loopFuture.cancelAndWait()
timer.loopFuture = nil