mirror of
https://github.com/status-im/nim-codex.git
synced 2025-01-13 04:14:11 +00:00
03fa370624
* Add Proving object, which maintains contract id's to watch * [proving] invoke callback when proof is required # Conflicts: # dagger/por/timing/periods.nim # dagger/por/timing/prooftiming.nim * [proving] check proof requirements for all our contracts # Conflicts: # tests/dagger/helpers/mockprooftiming.nim * Update vendor/dagger-contracts * [proving] call onProofRequired() when proof is required soon * [proving] stop checking contracts that have ended * [proving] Remove duplicated funcs * [proving] Implement ProofTiming on top of smart contract * [proving] Fix race condition in waitUntilNextPeriod() Sometimes waitUntilNextPeriod would take a while to determine the current period, leading to unexpected results. Splits waitUntilNextPeriod() into getCurrentPeriod() and waitUntilPeriod(), to ensure that we're really waiting for the period that we think we're waiting for.
51 lines
1.4 KiB
Nim
51 lines
1.4 KiB
Nim
import std/sets
|
|
import std/times
|
|
import pkg/upraises
|
|
import pkg/questionable
|
|
import ./por/timing/prooftiming
|
|
|
|
export sets
|
|
export prooftiming
|
|
|
|
type
|
|
Proving* = ref object
|
|
timing: ProofTiming
|
|
stopped: bool
|
|
contracts*: HashSet[ContractId]
|
|
onProofRequired: ?OnProofRequired
|
|
OnProofRequired* = proc (id: ContractId) {.gcsafe, upraises:[].}
|
|
|
|
func new*(_: type Proving, timing: ProofTiming): Proving =
|
|
Proving(timing: timing)
|
|
|
|
proc `onProofRequired=`*(proving: Proving, callback: OnProofRequired) =
|
|
proving.onProofRequired = some callback
|
|
|
|
func add*(proving: Proving, id: ContractId) =
|
|
proving.contracts.incl(id)
|
|
|
|
proc removeEndedContracts(proving: Proving) {.async.} =
|
|
let now = getTime().toUnix().u256
|
|
var ended: HashSet[ContractId]
|
|
for id in proving.contracts:
|
|
if now >= (await proving.timing.getProofEnd(id)):
|
|
ended.incl(id)
|
|
proving.contracts.excl(ended)
|
|
|
|
proc run(proving: Proving) {.async.} =
|
|
while not proving.stopped:
|
|
let currentPeriod = await proving.timing.getCurrentPeriod()
|
|
await proving.removeEndedContracts()
|
|
for id in proving.contracts:
|
|
if (await proving.timing.isProofRequired(id)) or
|
|
(await proving.timing.willProofBeRequired(id)):
|
|
if callback =? proving.onProofRequired:
|
|
callback(id)
|
|
await proving.timing.waitUntilPeriod(currentPeriod + 1)
|
|
|
|
proc start*(proving: Proving) =
|
|
asyncSpawn proving.run()
|
|
|
|
proc stop*(proving: Proving) =
|
|
proving.stopped = true
|