add eds store

go.mod

@@ -69,6 +69,7 @@ require (
 	go.opentelemetry.io/otel/sdk/metric v1.26.0
 	go.opentelemetry.io/otel/trace v1.26.0
 	go.opentelemetry.io/proto/otlp v1.2.0
+	go.uber.org/atomic v1.11.0
 	go.uber.org/fx v1.21.1
 	go.uber.org/zap v1.27.0
 	golang.org/x/crypto v0.21.0
@@ -313,7 +314,6 @@ require (
 	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.47.0 // indirect
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.47.0 // indirect
 	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.21.0 // indirect
-	go.uber.org/atomic v1.11.0 // indirect
 	go.uber.org/dig v1.17.1 // indirect
 	go.uber.org/mock v0.4.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect

share/new_eds/accessor.go

@@ -14,6 +14,8 @@ import (
 type Accessor interface {
 	// Size returns square size of the Accessor.
 	Size(ctx context.Context) int
+	// DataHash returns data hash of the Accessor.
+	DataHash(ctx context.Context) (share.DataHash, error)
 	// Sample returns share and corresponding proof for row and column indices. Implementation can
 	// choose which axis to use for proof. Chosen axis for proof should be indicated in the returned
 	// Sample.

share/new_eds/close_once.go

@@ -42,6 +42,14 @@ func (c *closeOnce) Size(ctx context.Context) int {
 	return c.f.Size(ctx)
 }
 
+// DataHash returns data hash of the Accessor.
+func (c *closeOnce) DataHash(ctx context.Context) (share.DataHash, error) {
+	if c.closed.Load() {
+		return nil, errAccessorClosed
+	}
+	return c.f.DataHash(ctx)
+}
+
 func (c *closeOnce) Sample(ctx context.Context, rowIdx, colIdx int) (shwap.Sample, error) {
 	if c.closed.Load() {
 		return shwap.Sample{}, errAccessorClosed

share/new_eds/close_once_test.go

@@ -50,6 +50,10 @@ func (s *stubEdsAccessorCloser) Size(context.Context) int {
 	return 0
 }
 
+func (s *stubEdsAccessorCloser) DataHash(context.Context) (share.DataHash, error) {
+	return nil, nil
+}
+
 func (s *stubEdsAccessorCloser) Sample(context.Context, int, int) (shwap.Sample, error) {
 	return shwap.Sample{}, nil
 }

share/new_eds/proofs_cache.go

@@ -77,6 +77,11 @@ func (c *proofsCache) Size(ctx context.Context) int {
 	return int(size)
 }
 
+// DataHash returns data hash of the Accessor.
+func (c *proofsCache) DataHash(ctx context.Context) (share.DataHash, error) {
+	return c.inner.DataHash(ctx)
+}
+
 func (c *proofsCache) Sample(ctx context.Context, rowIdx, colIdx int) (shwap.Sample, error) {
 	axisType, axisIdx, shrIdx := rsmt2d.Row, rowIdx, colIdx
 	ax, err := c.axisWithProofs(ctx, axisType, axisIdx)

share/new_eds/rsmt2d.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"io"
 
+	"github.com/celestiaorg/celestia-app/pkg/da"
 	"github.com/celestiaorg/celestia-app/pkg/wrapper"
 	"github.com/celestiaorg/rsmt2d"
 
@@ -24,6 +25,12 @@ func (eds *Rsmt2D) Size(context.Context) int {
 	return int(eds.Width())
 }
 
+// DataHash returns data hash of the Accessor.
+func (eds *Rsmt2D) DataHash(context.Context) (share.DataHash, error) {
+	dah, _ := da.NewDataAvailabilityHeader(eds.ExtendedDataSquare)
+	return dah.Hash(), nil
+}
+
 // Sample returns share and corresponding proof for row and column indices.
 func (eds *Rsmt2D) Sample(
 	_ context.Context,

store/cache/accessor_cache_test.go

@@ -300,6 +300,10 @@ func (m *mockAccessor) Size(context.Context) int {
 	panic("implement me")
 }
 
+func (m *mockAccessor) DataHash(context.Context) (share.DataHash, error) {
+	panic("implement me")
+}
+
 func (m *mockAccessor) Sample(context.Context, int, int) (shwap.Sample, error) {
 	panic("implement me")
 }

store/cache/noop.go

@@ -45,6 +45,11 @@ func (n NoopFile) Size(context.Context) int {
 	return 0
 }
 
+// DataHash returns data hash of the Accessor.
+func (n NoopFile) DataHash(context.Context) (share.DataHash, error) {
+	return nil, nil
+}
+
 func (n NoopFile) Sample(context.Context, int, int) (shwap.Sample, error) {
 	return shwap.Sample{}, nil
 }

store/file/ods.go

@@ -114,6 +114,11 @@ func (f *ODSFile) size() int {
 	return int(f.hdr.squareSize)
 }
 
+// DataHash returns data hash of the Accessor.
+func (f *ODSFile) DataHash(context.Context) (share.DataHash, error) {
+	return f.hdr.datahash, nil
+}
+
 // Close closes the file.
 func (f *ODSFile) Close() error {
 	return f.fl.Close()

store/file/q1q4_file.go

@@ -54,6 +54,11 @@ func (f *Q1Q4File) Size(ctx context.Context) int {
 	return f.ods.Size(ctx)
 }
 
+// DataHash returns data hash of the Accessor.
+func (f *Q1Q4File) DataHash(ctx context.Context) (share.DataHash, error) {
+	return f.ods.DataHash(ctx)
+}
+
 func (f *Q1Q4File) Sample(ctx context.Context, rowIdx, colIdx int) (shwap.Sample, error) {
 	// use native AxisHalf implementation, to read axis from Q4 quandrant when possible
 	half, err := f.AxisHalf(ctx, rsmt2d.Row, rowIdx)

store/metrics.go

@@ -0,0 +1,130 @@
+package store
+
+import (
+	"context"
+	"time"
+
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/metric"
+)
+
+const (
+	failedKey = "failed"
+	sizeKey   = "eds_size"
+)
+
+var meter = otel.Meter("store")
+
+type metrics struct {
+	put       metric.Float64Histogram
+	putExists metric.Int64Counter
+	get       metric.Float64Histogram
+	has       metric.Float64Histogram
+	remove    metric.Float64Histogram
+}
+
+func (s *Store) WithMetrics() error {
+	put, err := meter.Float64Histogram("eds_store_put_time_histogram",
+		metric.WithDescription("eds store put time histogram(s)"))
+	if err != nil {
+		return err
+	}
+
+	putExists, err := meter.Int64Counter("eds_store_put_exists_counter",
+		metric.WithDescription("eds store put file exists"))
+	if err != nil {
+		return err
+	}
+
+	get, err := meter.Float64Histogram("eds_store_get_time_histogram",
+		metric.WithDescription("eds store get time histogram(s)"))
+	if err != nil {
+		return err
+	}
+
+	has, err := meter.Float64Histogram("eds_store_has_time_histogram",
+		metric.WithDescription("eds store has time histogram(s)"))
+	if err != nil {
+		return err
+	}
+
+	remove, err := meter.Float64Histogram("eds_store_remove_time_histogram",
+		metric.WithDescription("eds store remove time histogram(s)"))
+	if err != nil {
+		return err
+	}
+
+	if err = s.cache.EnableMetrics(); err != nil {
+		return err
+	}
+
+	s.metrics = &metrics{
+		put:       put,
+		putExists: putExists,
+		get:       get,
+		has:       has,
+		remove:    remove,
+	}
+	return nil
+}
+
+func (m *metrics) observePut(ctx context.Context, dur time.Duration, size uint, failed bool) {
+	if m == nil {
+		return
+	}
+	if ctx.Err() != nil {
+		ctx = context.Background()
+	}
+
+	m.put.Record(ctx, dur.Seconds(), metric.WithAttributes(
+		attribute.Bool(failedKey, failed),
+		attribute.Int(sizeKey, int(size))))
+}
+
+func (m *metrics) observePutExist(ctx context.Context) {
+	if m == nil {
+		return
+	}
+	if ctx.Err() != nil {
+		ctx = context.Background()
+	}
+
+	m.putExists.Add(ctx, 1)
+}
+
+func (m *metrics) observeGet(ctx context.Context, dur time.Duration, failed bool) {
+	if m == nil {
+		return
+	}
+	if ctx.Err() != nil {
+		ctx = context.Background()
+	}
+
+	m.get.Record(ctx, dur.Seconds(), metric.WithAttributes(
+		attribute.Bool(failedKey, failed)))
+}
+
+func (m *metrics) observeHas(ctx context.Context, dur time.Duration, failed bool) {
+	if m == nil {
+		return
+	}
+	if ctx.Err() != nil {
+		ctx = context.Background()
+	}
+
+	m.has.Record(ctx, dur.Seconds(), metric.WithAttributes(
+		attribute.Bool(failedKey, failed)))
+}
+
+func (m *metrics) observeRemove(ctx context.Context, dur time.Duration, failed bool) {
+	if m == nil {
+		return
+	}
+	if ctx.Err() != nil {
+		ctx = context.Background()
+	}
+
+	m.remove.Record(ctx, dur.Seconds(), metric.WithAttributes(
+		attribute.Bool(failedKey, failed)))
+}