nim-dagger/codex/clock.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

36 lines
977 B
Nim

import pkg/chronos
import pkg/stew/endians2
import pkg/upraises
type
Clock* = ref object of RootObj
SecondsSince1970* = int64
Timeout* = object of CatchableError
method now*(clock: Clock): SecondsSince1970 {.base, upraises: [].} =
raiseAssert "not implemented"
proc waitUntil*(clock: Clock, time: SecondsSince1970) {.async.} =
while clock.now() < time:
await sleepAsync(1.seconds)
proc withTimeout*(future: Future[void],
clock: Clock,
expiry: SecondsSince1970) {.async.} =
let timeout = clock.waitUntil(expiry)
try:
await future or timeout
finally:
await timeout.cancelAndWait()
if not future.completed:
await future.cancelAndWait()
raise newException(Timeout, "Timed out")
proc toBytes*(i: SecondsSince1970): seq[byte] =
let asUint = cast[uint64](i)
@(asUint.toBytes)
proc toSecondsSince1970*(bytes: seq[byte]): SecondsSince1970 =
let asUint = uint64.fromBytes(bytes)
cast[int64](asUint)