def flush.manifest.loaded

mylsm-lsm-store@0.6.0.1 · src/ByteDurableDb.bend:915

import Base
import mylsm-lsm-store@0.6.0.1/src/ByteMemTable.bend as ByteMemTable
import mylsm-lsm-store@0.6.0.1/src/ByteManifest.bend as ByteManifest
import mylsm-lsm-store@0.6.0.1/src/ByteManifestIo.bend as ByteManifestIo
import mylsm-lsm-store@0.6.0.1/src/ByteSstFile.bend as ByteSstFile
import mylsm-lsm-store@0.6.0.1/src/ByteSstIo.bend as ByteSstIo
import mylsm-lsm-store@0.6.0.1/src/DbLock.bend as DbLock
import mylsm-lsm-store@0.6.0.1/src/scan/VisibleStats.bend as VisibleStats

915def flush.manifest.loaded(
916  +path: String,
917  lock: DbLock.Lock,
918  table: ByteMemTable.Table,
919  result: Result<&1, &1, ByteManifestIo.Error, ByteManifest.ManifestValue>
920) -> IO(Handle & Result<&1, &1, Error, Unit>):
921  match table:
922    case ByteMemTable.Table{entries}:
923      match result:
924        case Fail{ByteManifestIo.Invalid{_}}:
925          IO.pure(Handle & Result<&1, &1, Error, Unit>,
926            (Handle{path, lock, ByteMemTable.Table{entries}, Open{}, VisibleStats.Stats{0n, 0n}}, Fail{Corruption{"byte manifest validation failed"}}))
927        case Fail{ByteManifestIo.Host{code, message}}:
928          IO.pure(Handle & Result<&1, &1, Error, Unit>,
929            (Handle{path, lock, ByteMemTable.Table{entries}, Open{}, VisibleStats.Stats{0n, 0n}}, Fail{Io{code, message}}))
930        case Done{ByteManifest.Empty{}}:
931          flush.cloned(path, lock, ByteSstFile.entries.clone(entries))
932        case Done{ByteManifest.GenerationEmpty{}}:
933          flush.cloned(path, lock, ByteSstFile.entries.clone(entries))
934        case Done{ByteManifest.HasSst{}}:
935          do IO<Handle & Result<&1, &1, Error, Unit>>:
936            base : Result<&1, &1, U32 & String, ByteMemTable.Table> <-
937              ByteSstIo.read(path ++ "/SST")
938            flush.sst.loaded(path, lock, ByteMemTable.Table{entries}, base)
939        case Done{ByteManifest.GenerationSst{file_id}}:
940          do IO<Handle & Result<&1, &1, Error, Unit>>:
941            base : Result<&1, &1, U32 & String, ByteMemTable.Table> <-
942              ByteSstIo.read(ByteManifest.sst.generation.path(path, file_id))
943            flush.sst.loaded(path, lock, ByteMemTable.Table{entries}, base)