org.alephium.protocol.vm.event.CachedLog.scala Maven / Gradle / Ivy

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// Copyright 2018 The Alephium Authors
// This file is part of the alephium project.
//
// The library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the library. If not, see .

package org.alephium.protocol.vm.event

import org.alephium.crypto.Byte32
import org.alephium.io.{CachedKVStorage, IOResult}
import org.alephium.protocol.model.ContractId
import org.alephium.protocol.vm.{LogStateRef, LogStates, LogStatesId}
import org.alephium.protocol.vm.nodeindexes.CachedPageCounter
import org.alephium.util.AVector

final class CachedLog(
    val eventLog: CachedKVStorage[LogStatesId, LogStates],
    val eventLogByHash: CachedKVStorage[Byte32, AVector[LogStateRef]],
    val eventLogPageCounter: CachedPageCounter[ContractId],
    logStorage: LogStorage
) extends MutableLog {
  def persist(): IOResult[LogStorage] = {
    for {
      _ <- eventLog.persist()
      _ <- eventLogByHash.persist()
      _ <- eventLogPageCounter.persist()
    } yield logStorage
  }

  def staging(): StagingLog = new StagingLog(
    eventLog.staging(),
    eventLogByHash.staging(),
    eventLogPageCounter.staging()
  )
}

object CachedLog {
  @inline def from(
      logStorage: LogStorage
  ): CachedLog = {
    new CachedLog(
      CachedKVStorage.from(logStorage.logState),
      CachedKVStorage.from(logStorage.logRefState),
      CachedPageCounter.from(logStorage.logCounterState),
      logStorage
    )
  }
}