76 lines
2.2 KiB
Nim
76 lines
2.2 KiB
Nim
import pkg/questionable
|
|
import pkg/questionable/results
|
|
|
|
import ../../blocktype as bt
|
|
import ../../logutils
|
|
import ../../market
|
|
import ../salesagent
|
|
import ../statemachine
|
|
import ./errorhandling
|
|
import ./cancelled
|
|
import ./failed
|
|
import ./filled
|
|
import ./initialproving
|
|
import ./errored
|
|
|
|
type
|
|
SaleDownloading* = ref object of ErrorHandlingState
|
|
|
|
logScope:
|
|
topics = "marketplace sales downloading"
|
|
|
|
method `$`*(state: SaleDownloading): string = "SaleDownloading"
|
|
|
|
method onCancelled*(state: SaleDownloading, request: StorageRequest): ?State =
|
|
return some State(SaleCancelled())
|
|
|
|
method onFailed*(state: SaleDownloading, request: StorageRequest): ?State =
|
|
return some State(SaleFailed())
|
|
|
|
method onSlotFilled*(state: SaleDownloading, requestId: RequestId,
|
|
slotIndex: UInt256): ?State =
|
|
return some State(SaleFilled())
|
|
|
|
method run*(state: SaleDownloading, machine: Machine): Future[?State] {.async.} =
|
|
let agent = SalesAgent(machine)
|
|
let data = agent.data
|
|
let context = agent.context
|
|
let reservations = context.reservations
|
|
|
|
without onStore =? context.onStore:
|
|
raiseAssert "onStore callback not set"
|
|
|
|
without request =? data.request:
|
|
raiseAssert "no sale request"
|
|
|
|
without reservation =? data.reservation:
|
|
raiseAssert("no reservation")
|
|
|
|
logScope:
|
|
requestId = request.id
|
|
slotIndex = data.slotIndex
|
|
reservationId = reservation.id
|
|
availabilityId = reservation.availabilityId
|
|
|
|
proc onBlocks(blocks: seq[bt.Block]): Future[?!void] {.async.} =
|
|
# release batches of blocks as they are written to disk and
|
|
# update availability size
|
|
var bytes: uint = 0
|
|
for blk in blocks:
|
|
if not blk.cid.isEmpty:
|
|
bytes += blk.data.len.uint
|
|
|
|
trace "Releasing batch of bytes written to disk", bytes
|
|
return await reservations.release(reservation.id,
|
|
reservation.availabilityId,
|
|
bytes)
|
|
|
|
trace "Starting download"
|
|
if err =? (await onStore(request,
|
|
data.slotIndex,
|
|
onBlocks)).errorOption:
|
|
return some State(SaleErrored(error: err))
|
|
|
|
trace "Download complete"
|
|
return some State(SaleInitialProving())
|