lotus/node/modules/blockstore.go

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package modules
import (
"context"
"io"
"os"
"path/filepath"
bstore "github.com/ipfs/go-ipfs-blockstore"
"go.uber.org/fx"
"golang.org/x/xerrors"
"github.com/filecoin-project/lotus/blockstore"
badgerbs "github.com/filecoin-project/lotus/blockstore/badger"
"github.com/filecoin-project/lotus/blockstore/splitstore"
"github.com/filecoin-project/lotus/node/config"
"github.com/filecoin-project/lotus/node/modules/dtypes"
"github.com/filecoin-project/lotus/node/modules/helpers"
"github.com/filecoin-project/lotus/node/repo"
)
// UniversalBlockstore returns a single universal blockstore that stores both
// chain data and state data. It can be backed by a blockstore directly
// (e.g. Badger), or by a Splitstore.
func UniversalBlockstore(lc fx.Lifecycle, mctx helpers.MetricsCtx, r repo.LockedRepo) (dtypes.UniversalBlockstore, error) {
bs, err := r.Blockstore(helpers.LifecycleCtx(mctx, lc), repo.UniversalBlockstore)
if err != nil {
return nil, err
}
if c, ok := bs.(io.Closer); ok {
lc.Append(fx.Hook{
OnStop: func(_ context.Context) error {
return c.Close()
},
})
}
return bs, err
}
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func DiscardColdBlockstore(lc fx.Lifecycle, bs dtypes.UniversalBlockstore) (dtypes.ColdBlockstore, error) {
return blockstore.NewDiscardStore(bs), nil
}
func BadgerHotBlockstore(lc fx.Lifecycle, r repo.LockedRepo) (dtypes.HotBlockstore, error) {
path, err := r.SplitstorePath()
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if err != nil {
return nil, err
}
path = filepath.Join(path, "hot.badger")
if err := os.MkdirAll(path, 0755); err != nil {
return nil, err
}
opts, err := repo.BadgerBlockstoreOptions(repo.HotBlockstore, path, r.Readonly())
if err != nil {
return nil, err
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}
bs, err := badgerbs.Open(opts)
if err != nil {
return nil, err
}
lc.Append(fx.Hook{
OnStop: func(_ context.Context) error {
return bs.Close()
}})
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return bs, nil
}
func SplitBlockstore(cfg *config.Chainstore) func(lc fx.Lifecycle, r repo.LockedRepo, ds dtypes.MetadataDS, cold dtypes.ColdBlockstore, hot dtypes.HotBlockstore) (dtypes.SplitBlockstore, error) {
return func(lc fx.Lifecycle, r repo.LockedRepo, ds dtypes.MetadataDS, cold dtypes.ColdBlockstore, hot dtypes.HotBlockstore) (dtypes.SplitBlockstore, error) {
path, err := r.SplitstorePath()
if err != nil {
return nil, err
}
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cfg := &splitstore.Config{
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MarkSetType: cfg.Splitstore.MarkSetType,
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DiscardColdBlocks: cfg.Splitstore.ColdStoreType == "discard",
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}
ss, err := splitstore.Open(path, ds, hot, cold, cfg)
if err != nil {
return nil, err
}
lc.Append(fx.Hook{
OnStop: func(context.Context) error {
return ss.Close()
},
})
return ss, err
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}
}
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func ExposedSplitBlockstore(_ fx.Lifecycle, s dtypes.SplitBlockstore) dtypes.ExposedBlockstore {
return s.(*splitstore.SplitStore).Expose()
}
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func StateFlatBlockstore(_ fx.Lifecycle, _ helpers.MetricsCtx, bs dtypes.UniversalBlockstore) (dtypes.BasicStateBlockstore, error) {
return bs, nil
}
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func StateSplitBlockstore(_ fx.Lifecycle, _ helpers.MetricsCtx, bs dtypes.SplitBlockstore) (dtypes.BasicStateBlockstore, error) {
return bs, nil
}
func ChainFlatBlockstore(_ fx.Lifecycle, _ helpers.MetricsCtx, bs dtypes.UniversalBlockstore) (dtypes.ChainBlockstore, error) {
return bs, nil
}
func ChainSplitBlockstore(_ fx.Lifecycle, _ helpers.MetricsCtx, bs dtypes.SplitBlockstore) (dtypes.ChainBlockstore, error) {
return bs, nil
}
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func FallbackChainBlockstore(cbs dtypes.BasicChainBlockstore) dtypes.ChainBlockstore {
return &blockstore.FallbackStore{Blockstore: cbs}
}
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func FallbackStateBlockstore(sbs dtypes.BasicStateBlockstore) dtypes.StateBlockstore {
return &blockstore.FallbackStore{Blockstore: sbs}
}
func InitFallbackBlockstores(cbs dtypes.ChainBlockstore, sbs dtypes.StateBlockstore, rem dtypes.ChainBitswap) error {
for _, bs := range []bstore.Blockstore{cbs, sbs} {
if fbs, ok := bs.(*blockstore.FallbackStore); ok {
fbs.SetFallback(rem.GetBlock)
continue
}
return xerrors.Errorf("expected a FallbackStore")
}
return nil
}