Move Shared Packages Into Async/ (#9620)

* async packages

* change pkg

* build

* working

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>

async/BUILD.bazel

@@ -3,23 +3,28 @@ load("@prysm//tools/go:def.bzl", "go_library", "go_test")
 go_library(
     name = "go_default_library",
     srcs = [
+        "debounce.go",
+        "every.go",
         "multilock.go",
         "scatter.go",
     ],
-    importpath = "github.com/prysmaticlabs/prysm/shared/mputil",
+    importpath = "github.com/prysmaticlabs/prysm/async",
     visibility = ["//visibility:public"],
+    deps = ["@com_github_sirupsen_logrus//:go_default_library"],
 )
 
 go_test(
     name = "go_default_test",
-    size = "small",
     srcs = [
         "benchmark_test.go",
+        "debounce_test.go",
+        "every_test.go",
         "multilock_test.go",
         "scatter_test.go",
     ],
     embed = [":go_default_library"],
     deps = [
+        "//shared/testutil:go_default_library",
         "//shared/testutil/assert:go_default_library",
         "//shared/testutil/require:go_default_library",
         "@com_github_sirupsen_logrus//:go_default_library",

async/abool/BUILD.bazel

@@ -3,7 +3,7 @@ load("@prysm//tools/go:def.bzl", "go_library", "go_test")
 go_library(
     name = "go_default_library",
     srcs = ["abool.go"],
-    importpath = "github.com/prysmaticlabs/prysm/shared/abool",
+    importpath = "github.com/prysmaticlabs/prysm/async/abool",
     visibility = ["//visibility:public"],
 )
 

async/benchmark_test.go

@@ -1,4 +1,4 @@
-package mputil_test
+package async_test
 
 import (
 	"crypto/rand"
@@ -6,7 +6,7 @@ import (
 	"sync"
 	"testing"
 
-	"github.com/prysmaticlabs/prysm/shared/mputil"
+	"github.com/prysmaticlabs/prysm/async"
 	"github.com/prysmaticlabs/prysm/shared/testutil/require"
 	log "github.com/sirupsen/logrus"
 )
@@ -52,7 +52,7 @@ func BenchmarkHash(b *testing.B) {
 func BenchmarkHashMP(b *testing.B) {
 	output := make([][]byte, len(input))
 	for i := 0; i < b.N; i++ {
-		workerResults, err := mputil.Scatter(len(input), func(offset int, entries int, _ *sync.RWMutex) (interface{}, error) {
+		workerResults, err := async.Scatter(len(input), func(offset int, entries int, _ *sync.RWMutex) (interface{}, error) {
 			return hash(input[offset : offset+entries]), nil
 		})
 		require.NoError(b, err)

async/debounce.go

@@ -1,4 +1,4 @@
-package asyncutil
+package async
 
 import (
 	"context"

async/debounce_test.go

@@ -1,4 +1,4 @@
-package asyncutil
+package async_test
 
 import (
 	"context"
@@ -6,6 +6,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/prysmaticlabs/prysm/async"
 	"github.com/prysmaticlabs/prysm/shared/testutil"
 	"github.com/prysmaticlabs/prysm/shared/testutil/assert"
 	"github.com/prysmaticlabs/prysm/shared/testutil/require"
@@ -24,7 +25,7 @@ func TestDebounce_NoEvents(t *testing.T) {
 		})
 	}()
 	go func() {
-		Debounce(ctx, interval, eventsChan, func(event interface{}) {
+		async.Debounce(ctx, interval, eventsChan, func(event interface{}) {
 			timesHandled++
 		})
 		wg.Done()
@@ -60,7 +61,7 @@ func TestDebounce_CtxClosing(t *testing.T) {
 		})
 	}()
 	go func() {
-		Debounce(ctx, interval, eventsChan, func(event interface{}) {
+		async.Debounce(ctx, interval, eventsChan, func(event interface{}) {
 			timesHandled++
 		})
 		wg.Done()
@@ -76,7 +77,7 @@ func TestDebounce_SingleHandlerInvocation(t *testing.T) {
 	ctx, cancel := context.WithCancel(context.Background())
 	interval := time.Second
 	timesHandled := 0
-	go Debounce(ctx, interval, eventsChan, func(event interface{}) {
+	go async.Debounce(ctx, interval, eventsChan, func(event interface{}) {
 		timesHandled++
 	})
 	for i := 0; i < 100; i++ {
@@ -94,7 +95,7 @@ func TestDebounce_MultipleHandlerInvocation(t *testing.T) {
 	ctx, cancel := context.WithCancel(context.Background())
 	interval := time.Second
 	timesHandled := 0
-	go Debounce(ctx, interval, eventsChan, func(event interface{}) {
+	go async.Debounce(ctx, interval, eventsChan, func(event interface{}) {
 		timesHandled++
 	})
 	for i := 0; i < 100; i++ {

async/event/BUILD.bazel

@@ -6,7 +6,7 @@ go_library(
         "feed.go",
         "subscription.go",
     ],
-    importpath = "github.com/prysmaticlabs/prysm/shared/event",
+    importpath = "github.com/prysmaticlabs/prysm/async/event",
     visibility = ["//visibility:public"],
     deps = ["//time/mclock:go_default_library"],
 )

async/event/example_feed_test.go

@@ -19,7 +19,7 @@ package event_test
 import (
 	"fmt"
 
-	"github.com/prysmaticlabs/prysm/shared/event"
+	"github.com/prysmaticlabs/prysm/async/event"
 )
 
 func ExampleFeed_acknowledgedEvents() {

async/event/example_scope_test.go

@@ -20,7 +20,7 @@ import (
 	"fmt"
 	"sync"
 
-	"github.com/prysmaticlabs/prysm/shared/event"
+	"github.com/prysmaticlabs/prysm/async/event"
 )
 
 // This example demonstrates how SubscriptionScope can be used to control the lifetime of

async/event/example_subscription_test.go

@@ -19,7 +19,7 @@ package event_test
 import (
 	"fmt"
 
-	"github.com/prysmaticlabs/prysm/shared/event"
+	"github.com/prysmaticlabs/prysm/async/event"
 )
 
 func ExampleNewSubscription() {

async/every.go

@@ -1,5 +1,5 @@
 // Package runutil includes helpers for scheduling runnable, periodic functions.
-package runutil
+package async
 
 import (
 	"context"

async/every_test.go

@@ -1,18 +1,18 @@
-package runutil_test
+package async_test
 
 import (
 	"context"
 	"testing"
 	"time"
 
-	"github.com/prysmaticlabs/prysm/shared/runutil"
+	"github.com/prysmaticlabs/prysm/async"
 )
 
 func TestEveryRuns(t *testing.T) {
 	ctx, cancel := context.WithCancel(context.Background())
 
 	i := 0
-	runutil.RunEvery(ctx, 100*time.Millisecond, func() {
+	async.RunEvery(ctx, 100*time.Millisecond, func() {
 		i++
 	})
 

async/multilock.go

@@ -10,7 +10,7 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 */
-package mputil
+package async
 
 import (
 	"runtime"

async/multilock_test.go

@@ -10,7 +10,7 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 */
-package mputil
+package async
 
 import (
 	"sync"

async/scatter.go

@@ -1,6 +1,6 @@
 // Package mputil contains useful helpers for converting
 // multi-processor computation.
-package mputil
+package async
 
 import (
 	"errors"

async/scatter_test.go

@@ -1,11 +1,11 @@
-package mputil_test
+package async_test
 
 import (
 	"errors"
 	"sync"
 	"testing"
 
-	"github.com/prysmaticlabs/prysm/shared/mputil"
+	"github.com/prysmaticlabs/prysm/async"
 	"github.com/prysmaticlabs/prysm/shared/testutil/assert"
 	"github.com/prysmaticlabs/prysm/shared/testutil/require"
 )
@@ -46,7 +46,7 @@ func TestDouble(t *testing.T) {
 				inValues[i] = i
 			}
 			outValues := make([]int, test.inValues)
-			workerResults, err := mputil.Scatter(len(inValues), func(offset int, entries int, _ *sync.RWMutex) (interface{}, error) {
+			workerResults, err := async.Scatter(len(inValues), func(offset int, entries int, _ *sync.RWMutex) (interface{}, error) {
 				extent := make([]int, entries)
 				for i := 0; i < entries; i++ {
 					extent[i] = inValues[offset+i] * 2
@@ -72,7 +72,7 @@ func TestDouble(t *testing.T) {
 func TestMutex(t *testing.T) {
 	totalRuns := 1048576
 	val := 0
-	_, err := mputil.Scatter(totalRuns, func(offset int, entries int, mu *sync.RWMutex) (interface{}, error) {
+	_, err := async.Scatter(totalRuns, func(offset int, entries int, mu *sync.RWMutex) (interface{}, error) {
 		for i := 0; i < entries; i++ {
 			mu.Lock()
 			val++
@@ -90,7 +90,7 @@ func TestMutex(t *testing.T) {
 func TestError(t *testing.T) {
 	totalRuns := 1024
 	val := 0
-	_, err := mputil.Scatter(totalRuns, func(offset int, entries int, mu *sync.RWMutex) (interface{}, error) {
+	_, err := async.Scatter(totalRuns, func(offset int, entries int, mu *sync.RWMutex) (interface{}, error) {
 		for i := 0; i < entries; i++ {
 			mu.Lock()
 			val++

beacon-chain/blockchain/BUILD.bazel

@@ -25,6 +25,7 @@ go_library(
         "//testing/fuzz:__pkg__",
     ],
     deps = [
+        "//async:go_default_library",
         "//beacon-chain/cache:go_default_library",
         "//beacon-chain/cache/depositcache:go_default_library",
         "//beacon-chain/core:go_default_library",
@@ -55,7 +56,6 @@ go_library(
         "//runtime/version:go_default_library",
         "//shared/attestationutil:go_default_library",
         "//shared/bytesutil:go_default_library",
-        "//shared/mputil:go_default_library",
         "//shared/params:go_default_library",
         "//time:go_default_library",
         "//time/slots:go_default_library",
@@ -100,6 +100,7 @@ go_test(
     embed = [":go_default_library"],
     gotags = ["develop"],
     deps = [
+        "//async/event:go_default_library",
         "//beacon-chain/blockchain/testing:go_default_library",
         "//beacon-chain/cache/depositcache:go_default_library",
         "//beacon-chain/core/blocks:go_default_library",
@@ -114,7 +115,6 @@ go_test(
         "//proto/prysm/v1alpha1:go_default_library",
         "//proto/prysm/v1alpha1/wrapper:go_default_library",
         "//shared/bytesutil:go_default_library",
-        "//shared/event:go_default_library",
         "//shared/params:go_default_library",
         "//shared/testutil:go_default_library",
         "//shared/testutil/assert:go_default_library",
@@ -151,6 +151,7 @@ go_test(
     race = "on",
     tags = ["race_on"],
     deps = [
+        "//async/event:go_default_library",
         "//beacon-chain/blockchain/testing:go_default_library",
         "//beacon-chain/cache/depositcache:go_default_library",
         "//beacon-chain/core/blocks:go_default_library",
@@ -163,7 +164,6 @@ go_test(
         "//proto/prysm/v1alpha1:go_default_library",
         "//proto/prysm/v1alpha1/wrapper:go_default_library",
         "//shared/bytesutil:go_default_library",
-        "//shared/event:go_default_library",
         "//shared/params:go_default_library",
         "//shared/testutil:go_default_library",
         "//shared/testutil/assert:go_default_library",

beacon-chain/blockchain/head_sync_committee_info.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/pkg/errors"
 	types "github.com/prysmaticlabs/eth2-types"
+	"github.com/prysmaticlabs/prysm/async"
 	"github.com/prysmaticlabs/prysm/beacon-chain/cache"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/altair"
@@ -13,7 +14,6 @@ import (
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/transition"
 	"github.com/prysmaticlabs/prysm/beacon-chain/state"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
-	"github.com/prysmaticlabs/prysm/shared/mputil"
 	"github.com/prysmaticlabs/prysm/shared/params"
 )
 
@@ -112,7 +112,7 @@ func (s *Service) domainWithHeadState(ctx context.Context, slot types.Slot, doma
 func (s *Service) getSyncCommitteeHeadState(ctx context.Context, slot types.Slot) (state.BeaconState, error) {
 	var headState state.BeaconState
 	var err error
-	mLock := mputil.NewMultilock(fmt.Sprintf("%s-%d", "syncHeadState", slot))
+	mLock := async.NewMultilock(fmt.Sprintf("%s-%d", "syncHeadState", slot))
 	mLock.Lock()
 	defer mLock.Unlock()
 

beacon-chain/blockchain/process_attestation_helpers.go

@@ -7,13 +7,13 @@ import (
 
 	"github.com/pkg/errors"
 	types "github.com/prysmaticlabs/eth2-types"
+	"github.com/prysmaticlabs/prysm/async"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/transition"
 	"github.com/prysmaticlabs/prysm/beacon-chain/state"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
-	"github.com/prysmaticlabs/prysm/shared/mputil"
 	"github.com/prysmaticlabs/prysm/shared/params"
 )
 
@@ -22,7 +22,7 @@ func (s *Service) getAttPreState(ctx context.Context, c *ethpb.Checkpoint) (stat
 	// Use a multilock to allow scoped holding of a mutex by a checkpoint root + epoch
 	// allowing us to behave smarter in terms of how this function is used concurrently.
 	epochKey := strconv.FormatUint(uint64(c.Epoch), 10 /* base 10 */)
-	lock := mputil.NewMultilock(string(c.Root) + epochKey)
+	lock := async.NewMultilock(string(c.Root) + epochKey)
 	lock.Lock()
 	defer lock.Unlock()
 	cachedState, err := s.checkpointStateCache.StateByCheckpoint(c)

beacon-chain/blockchain/service_test.go

@@ -8,6 +8,7 @@ import (
 	"time"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/beacon-chain/cache/depositcache"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core"
 	b "github.com/prysmaticlabs/prysm/beacon-chain/core/blocks"
@@ -28,7 +29,6 @@ import (
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/block"
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/wrapper"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	"github.com/prysmaticlabs/prysm/shared/testutil"
 	"github.com/prysmaticlabs/prysm/shared/testutil/assert"

beacon-chain/blockchain/testing/BUILD.bazel

@@ -10,6 +10,7 @@ go_library(
         "//testing/fuzz:__pkg__",
     ],
     deps = [
+        "//async/event:go_default_library",
         "//beacon-chain/core/epoch/precompute:go_default_library",
         "//beacon-chain/core/feed:go_default_library",
         "//beacon-chain/core/feed/block:go_default_library",
@@ -23,7 +24,6 @@ go_library(
         "//proto/prysm/v1alpha1:go_default_library",
         "//proto/prysm/v1alpha1/block:go_default_library",
         "//shared/bytesutil:go_default_library",
-        "//shared/event:go_default_library",
         "//shared/params:go_default_library",
         "@com_github_pkg_errors//:go_default_library",
         "@com_github_prysmaticlabs_eth2_types//:go_default_library",

beacon-chain/blockchain/testing/mock.go

@@ -10,6 +10,7 @@ import (
 
 	"github.com/pkg/errors"
 	types "github.com/prysmaticlabs/eth2-types"
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/epoch/precompute"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/feed"
 	blockfeed "github.com/prysmaticlabs/prysm/beacon-chain/core/feed/block"
@@ -23,7 +24,6 @@ import (
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/block"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	"github.com/sirupsen/logrus"
 )

beacon-chain/core/feed/block/BUILD.bazel

@@ -9,7 +9,7 @@ go_library(
     importpath = "github.com/prysmaticlabs/prysm/beacon-chain/core/feed/block",
     visibility = ["//beacon-chain:__subpackages__"],
     deps = [
+        "//async/event:go_default_library",
         "//proto/prysm/v1alpha1/block:go_default_library",
-        "//shared/event:go_default_library",
     ],
 )

beacon-chain/core/feed/block/notifier.go

@@ -1,6 +1,6 @@
 package block
 
-import "github.com/prysmaticlabs/prysm/shared/event"
+import "github.com/prysmaticlabs/prysm/async/event"
 
 // Notifier interface defines the methods of the service that provides block updates to consumers.
 type Notifier interface {

beacon-chain/core/feed/operation/BUILD.bazel

@@ -9,7 +9,7 @@ go_library(
     importpath = "github.com/prysmaticlabs/prysm/beacon-chain/core/feed/operation",
     visibility = ["//beacon-chain:__subpackages__"],
     deps = [
+        "//async/event:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
-        "//shared/event:go_default_library",
     ],
 )

beacon-chain/core/feed/operation/notifier.go

@@ -1,6 +1,6 @@
 package operation
 
-import "github.com/prysmaticlabs/prysm/shared/event"
+import "github.com/prysmaticlabs/prysm/async/event"
 
 // Notifier interface defines the methods of the service that provides beacon block operation updates to consumers.
 type Notifier interface {

beacon-chain/core/feed/state/BUILD.bazel

@@ -9,8 +9,8 @@ go_library(
     importpath = "github.com/prysmaticlabs/prysm/beacon-chain/core/feed/state",
     visibility = ["//beacon-chain:__subpackages__"],
     deps = [
+        "//async/event:go_default_library",
         "//proto/prysm/v1alpha1/block:go_default_library",
-        "//shared/event:go_default_library",
         "@com_github_prysmaticlabs_eth2_types//:go_default_library",
     ],
 )

beacon-chain/core/feed/state/notifier.go

@@ -1,6 +1,6 @@
 package state
 
-import "github.com/prysmaticlabs/prysm/shared/event"
+import "github.com/prysmaticlabs/prysm/async/event"
 
 // Notifier interface defines the methods of the service that provides state updates to consumers.
 type Notifier interface {

beacon-chain/node/BUILD.bazel

@@ -15,6 +15,7 @@ go_library(
     ],
     deps = [
         "//api/gateway:go_default_library",
+        "//async/event:go_default_library",
         "//beacon-chain/blockchain:go_default_library",
         "//beacon-chain/cache/depositcache:go_default_library",
         "//beacon-chain/core/helpers:go_default_library",
@@ -47,7 +48,6 @@ go_library(
         "//runtime/prereqs:go_default_library",
         "//runtime/version:go_default_library",
         "//shared/cmd:go_default_library",
-        "//shared/event:go_default_library",
         "//shared/params:go_default_library",
         "@com_github_ethereum_go_ethereum//common:go_default_library",
         "@com_github_pkg_errors//:go_default_library",

beacon-chain/node/node.go

@@ -17,6 +17,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/pkg/errors"
 	"github.com/prysmaticlabs/prysm/api/gateway"
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/beacon-chain/blockchain"
 	"github.com/prysmaticlabs/prysm/beacon-chain/cache/depositcache"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
@@ -48,7 +49,6 @@ import (
 	"github.com/prysmaticlabs/prysm/runtime/prereqs"
 	"github.com/prysmaticlabs/prysm/runtime/version"
 	"github.com/prysmaticlabs/prysm/shared/cmd"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli/v2"

beacon-chain/operations/attestations/BUILD.bazel

@@ -45,12 +45,12 @@ go_test(
     ],
     embed = [":go_default_library"],
     deps = [
+        "//async:go_default_library",
         "//beacon-chain/operations/attestations/kv:go_default_library",
         "//crypto/bls:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
         "//shared/aggregation/attestations:go_default_library",
         "//shared/params:go_default_library",
-        "//shared/runutil:go_default_library",
         "//shared/testutil:go_default_library",
         "//shared/testutil/assert:go_default_library",
         "//shared/testutil/require:go_default_library",

beacon-chain/operations/attestations/prune_expired_test.go

@@ -6,9 +6,9 @@ import (
 	"time"
 
 	"github.com/prysmaticlabs/go-bitfield"
+	"github.com/prysmaticlabs/prysm/async"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/shared/params"
-	"github.com/prysmaticlabs/prysm/shared/runutil"
 	"github.com/prysmaticlabs/prysm/shared/testutil"
 	"github.com/prysmaticlabs/prysm/shared/testutil/assert"
 	"github.com/prysmaticlabs/prysm/shared/testutil/require"
@@ -49,7 +49,7 @@ func TestPruneExpired_Ticker(t *testing.T) {
 	go s.pruneAttsPool()
 
 	done := make(chan struct{}, 1)
-	runutil.RunEvery(ctx, 500*time.Millisecond, func() {
+	async.RunEvery(ctx, 500*time.Millisecond, func() {
 		atts, err := s.cfg.Pool.UnaggregatedAttestations()
 		require.NoError(t, err)
 		for _, attestation := range atts {

beacon-chain/p2p/BUILD.bazel

@@ -40,6 +40,7 @@ go_library(
         "//tools:__subpackages__",
     ],
     deps = [
+        "//async:go_default_library",
         "//beacon-chain/cache:go_default_library",
         "//beacon-chain/core:go_default_library",
         "//beacon-chain/core/altair:go_default_library",
@@ -66,7 +67,6 @@ go_library(
         "//runtime/version:go_default_library",
         "//shared/bytesutil:go_default_library",
         "//shared/params:go_default_library",
-        "//shared/runutil:go_default_library",
         "//time:go_default_library",
         "//time/slots:go_default_library",
         "@com_github_ethereum_go_ethereum//crypto:go_default_library",
@@ -129,6 +129,7 @@ go_test(
     embed = [":go_default_library"],
     flaky = True,
     deps = [
+        "//async/event:go_default_library",
         "//beacon-chain/blockchain/testing:go_default_library",
         "//beacon-chain/cache:go_default_library",
         "//beacon-chain/core/feed:go_default_library",
@@ -150,7 +151,6 @@ go_test(
         "//proto/testing:go_default_library",
         "//runtime/version:go_default_library",
         "//shared/bytesutil:go_default_library",
-        "//shared/event:go_default_library",
         "//shared/params:go_default_library",
         "//shared/testutil:go_default_library",
         "//shared/testutil/assert:go_default_library",

beacon-chain/p2p/service.go

@@ -22,6 +22,7 @@ import (
 	"github.com/libp2p/go-libp2p/p2p/protocol/identify"
 	"github.com/multiformats/go-multiaddr"
 	"github.com/pkg/errors"
+	"github.com/prysmaticlabs/prysm/async"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/feed"
 	statefeed "github.com/prysmaticlabs/prysm/beacon-chain/core/feed/state"
 	"github.com/prysmaticlabs/prysm/beacon-chain/p2p/encoder"
@@ -31,7 +32,6 @@ import (
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/metadata"
 	"github.com/prysmaticlabs/prysm/runtime"
 	"github.com/prysmaticlabs/prysm/shared/params"
-	"github.com/prysmaticlabs/prysm/shared/runutil"
 	"github.com/prysmaticlabs/prysm/time/slots"
 	"github.com/sirupsen/logrus"
 	"go.opencensus.io/trace"
@@ -231,15 +231,15 @@ func (s *Service) Start() {
 	s.RefreshENR()
 
 	// Periodic functions.
-	runutil.RunEvery(s.ctx, params.BeaconNetworkConfig().TtfbTimeout, func() {
+	async.RunEvery(s.ctx, params.BeaconNetworkConfig().TtfbTimeout, func() {
 		ensurePeerConnections(s.ctx, s.host, peersToWatch...)
 	})
-	runutil.RunEvery(s.ctx, 30*time.Minute, s.Peers().Prune)
+	async.RunEvery(s.ctx, 30*time.Minute, s.Peers().Prune)
-	runutil.RunEvery(s.ctx, params.BeaconNetworkConfig().RespTimeout, s.updateMetrics)
+	async.RunEvery(s.ctx, params.BeaconNetworkConfig().RespTimeout, s.updateMetrics)
-	runutil.RunEvery(s.ctx, refreshRate, func() {
+	async.RunEvery(s.ctx, refreshRate, func() {
 		s.RefreshENR()
 	})
-	runutil.RunEvery(s.ctx, 1*time.Minute, func() {
+	async.RunEvery(s.ctx, 1*time.Minute, func() {
 		log.WithFields(logrus.Fields{
 			"inbound":     len(s.peers.InboundConnected()),
 			"outbound":    len(s.peers.OutboundConnected()),

beacon-chain/p2p/service_test.go

@@ -15,6 +15,7 @@ import (
 	"github.com/libp2p/go-libp2p-core/peer"
 	noise "github.com/libp2p/go-libp2p-noise"
 	"github.com/multiformats/go-multiaddr"
+	"github.com/prysmaticlabs/prysm/async/event"
 	mock "github.com/prysmaticlabs/prysm/beacon-chain/blockchain/testing"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/feed"
 	statefeed "github.com/prysmaticlabs/prysm/beacon-chain/core/feed/state"
@@ -23,7 +24,6 @@ import (
 	"github.com/prysmaticlabs/prysm/beacon-chain/p2p/peers/scorers"
 	"github.com/prysmaticlabs/prysm/network/forks"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/shared/testutil/assert"
 	"github.com/prysmaticlabs/prysm/shared/testutil/require"
 	prysmTime "github.com/prysmaticlabs/prysm/time"

beacon-chain/powchain/BUILD.bazel

@@ -74,6 +74,7 @@ go_test(
     ],
     embed = [":go_default_library"],
     deps = [
+        "//async/event:go_default_library",
         "//beacon-chain/cache/depositcache:go_default_library",
         "//beacon-chain/core/feed:go_default_library",
         "//beacon-chain/core/feed/state:go_default_library",
@@ -90,7 +91,6 @@ go_test(
         "//network/authorization:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
         "//shared/bytesutil:go_default_library",
-        "//shared/event:go_default_library",
         "//shared/params:go_default_library",
         "//shared/testutil:go_default_library",
         "//shared/testutil/assert:go_default_library",

beacon-chain/powchain/service_test.go

@@ -15,6 +15,7 @@ import (
 	"github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
 	"github.com/ethereum/go-ethereum/common"
 	gethTypes "github.com/ethereum/go-ethereum/core/types"
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/beacon-chain/cache/depositcache"
 	dbutil "github.com/prysmaticlabs/prysm/beacon-chain/db/testing"
 	mockPOW "github.com/prysmaticlabs/prysm/beacon-chain/powchain/testing"
@@ -23,7 +24,6 @@ import (
 	"github.com/prysmaticlabs/prysm/network"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	protodb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	"github.com/prysmaticlabs/prysm/shared/testutil"
 	"github.com/prysmaticlabs/prysm/shared/testutil/assert"

beacon-chain/powchain/testing/BUILD.bazel

@@ -13,13 +13,13 @@ go_library(
         "//testing/fuzz:__pkg__",
     ],
     deps = [
+        "//async/event:go_default_library",
         "//beacon-chain/powchain/types:go_default_library",
         "//beacon-chain/state:go_default_library",
         "//beacon-chain/state/v1:go_default_library",
         "//container/trie:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
         "//shared/bytesutil:go_default_library",
-        "//shared/event:go_default_library",
         "@com_github_ethereum_go_ethereum//accounts/abi/bind/backends:go_default_library",
         "@com_github_ethereum_go_ethereum//common:go_default_library",
         "@com_github_ethereum_go_ethereum//common/hexutil:go_default_library",

beacon-chain/powchain/testing/mock_faulty_powchain.go

@@ -6,12 +6,12 @@ import (
 	"math/big"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/beacon-chain/powchain/types"
 	"github.com/prysmaticlabs/prysm/beacon-chain/state"
 	v1 "github.com/prysmaticlabs/prysm/beacon-chain/state/v1"
 	"github.com/prysmaticlabs/prysm/container/trie"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
-	"github.com/prysmaticlabs/prysm/shared/event"
 )
 
 // FaultyMockPOWChain defines an incorrectly functioning powchain service.

beacon-chain/powchain/testing/mock_powchain.go

@@ -13,12 +13,12 @@ import (
 	"github.com/ethereum/go-ethereum/common/hexutil"
 	gethTypes "github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/rpc"
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/beacon-chain/powchain/types"
 	"github.com/prysmaticlabs/prysm/beacon-chain/state"
 	"github.com/prysmaticlabs/prysm/container/trie"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
-	"github.com/prysmaticlabs/prysm/shared/event"
 )
 
 // POWChain defines a properly functioning mock for the powchain service.

beacon-chain/rpc/eth/events/BUILD.bazel

@@ -30,6 +30,7 @@ go_test(
     srcs = ["events_test.go"],
     embed = [":go_default_library"],
     deps = [
+        "//async/event:go_default_library",
         "//beacon-chain/blockchain/testing:go_default_library",
         "//beacon-chain/core/feed:go_default_library",
         "//beacon-chain/core/feed/block:go_default_library",
@@ -39,7 +40,6 @@ go_test(
         "//proto/migration:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
         "//proto/prysm/v1alpha1/wrapper:go_default_library",
-        "//shared/event:go_default_library",
         "//shared/testutil:go_default_library",
         "//shared/testutil/assert:go_default_library",
         "//shared/testutil/require:go_default_library",

beacon-chain/rpc/eth/events/events_test.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/golang/mock/gomock"
 	"github.com/grpc-ecosystem/grpc-gateway/v2/proto/gateway"
+	"github.com/prysmaticlabs/prysm/async/event"
 	mockChain "github.com/prysmaticlabs/prysm/beacon-chain/blockchain/testing"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/feed"
 	blockfeed "github.com/prysmaticlabs/prysm/beacon-chain/core/feed/block"
@@ -15,7 +16,6 @@ import (
 	"github.com/prysmaticlabs/prysm/proto/migration"
 	eth "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/wrapper"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/shared/testutil"
 	"github.com/prysmaticlabs/prysm/shared/testutil/assert"
 	"github.com/prysmaticlabs/prysm/shared/testutil/require"

beacon-chain/rpc/prysm/v1alpha1/beacon/BUILD.bazel

@@ -18,6 +18,7 @@ go_library(
     visibility = ["//beacon-chain:__subpackages__"],
     deps = [
         "//api/pagination:go_default_library",
+        "//async/event:go_default_library",
         "//beacon-chain/blockchain:go_default_library",
         "//beacon-chain/cache/depositcache:go_default_library",
         "//beacon-chain/core:go_default_library",
@@ -49,7 +50,6 @@ go_library(
         "//shared/attestationutil:go_default_library",
         "//shared/bytesutil:go_default_library",
         "//shared/cmd:go_default_library",
-        "//shared/event:go_default_library",
         "//shared/params:go_default_library",
         "//time/slots:go_default_library",
         "@com_github_patrickmn_go_cache//:go_default_library",

beacon-chain/rpc/prysm/v1alpha1/beacon/blocks.go

@@ -5,6 +5,7 @@ import (
 	"strconv"
 
 	"github.com/prysmaticlabs/prysm/api/pagination"
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/blocks"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/feed"
@@ -17,7 +18,6 @@ import (
 	"github.com/prysmaticlabs/prysm/runtime/version"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
 	"github.com/prysmaticlabs/prysm/shared/cmd"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"

beacon-chain/rpc/prysm/v1alpha1/beacon/validators_stream.go

@@ -14,6 +14,7 @@ import (
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promauto"
 	types "github.com/prysmaticlabs/eth2-types"
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/beacon-chain/blockchain"
 	"github.com/prysmaticlabs/prysm/beacon-chain/cache/depositcache"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core"
@@ -25,7 +26,6 @@ import (
 	"github.com/prysmaticlabs/prysm/beacon-chain/state"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"

beacon-chain/rpc/prysm/v1alpha1/validator/BUILD.bazel

@@ -19,6 +19,7 @@ go_library(
     importpath = "github.com/prysmaticlabs/prysm/beacon-chain/rpc/prysm/v1alpha1/validator",
     visibility = ["//beacon-chain:__subpackages__"],
     deps = [
+        "//async/event:go_default_library",
         "//beacon-chain/blockchain:go_default_library",
         "//beacon-chain/cache:go_default_library",
         "//beacon-chain/cache/depositcache:go_default_library",
@@ -58,7 +59,6 @@ go_library(
         "//shared/aggregation/sync_contribution:go_default_library",
         "//shared/bytesutil:go_default_library",
         "//shared/depositutil:go_default_library",
-        "//shared/event:go_default_library",
         "//shared/params:go_default_library",
         "//time:go_default_library",
         "//time/slots:go_default_library",
@@ -95,6 +95,7 @@ go_test(
     ],
     embed = [":go_default_library"],
     deps = [
+        "//async/event:go_default_library",
         "//beacon-chain/blockchain/testing:go_default_library",
         "//beacon-chain/cache:go_default_library",
         "//beacon-chain/cache/depositcache:go_default_library",
@@ -127,7 +128,6 @@ go_test(
         "//shared/aggregation/attestations:go_default_library",
         "//shared/attestationutil:go_default_library",
         "//shared/bytesutil:go_default_library",
-        "//shared/event:go_default_library",
         "//shared/params:go_default_library",
         "//shared/testutil:go_default_library",
         "//shared/testutil/assert:go_default_library",

beacon-chain/rpc/prysm/v1alpha1/validator/blocks.go

@@ -1,13 +1,13 @@
 package validator
 
 import (
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/blocks"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/feed"
 	blockfeed "github.com/prysmaticlabs/prysm/beacon-chain/core/feed/block"
 	statefeed "github.com/prysmaticlabs/prysm/beacon-chain/core/feed/state"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/runtime/version"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 )

beacon-chain/rpc/prysm/v1alpha1/validator/server_test.go

@@ -7,6 +7,7 @@ import (
 	"time"
 
 	"github.com/golang/mock/gomock"
+	"github.com/prysmaticlabs/prysm/async/event"
 	mockChain "github.com/prysmaticlabs/prysm/beacon-chain/blockchain/testing"
 	"github.com/prysmaticlabs/prysm/beacon-chain/cache/depositcache"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/feed"
@@ -18,7 +19,6 @@ import (
 	"github.com/prysmaticlabs/prysm/crypto/bls"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	"github.com/prysmaticlabs/prysm/shared/testutil"
 	"github.com/prysmaticlabs/prysm/shared/testutil/assert"

beacon-chain/sync/BUILD.bazel

@@ -50,6 +50,8 @@ go_library(
         "//testing/fuzz:__pkg__",
     ],
     deps = [
+        "//async:go_default_library",
+        "//async/abool:go_default_library",
         "//beacon-chain/blockchain:go_default_library",
         "//beacon-chain/cache:go_default_library",
         "//beacon-chain/core:go_default_library",
@@ -89,11 +91,8 @@ go_library(
         "//runtime:go_default_library",
         "//runtime/messagehandler:go_default_library",
         "//runtime/version:go_default_library",
-        "//shared/abool:go_default_library",
         "//shared/bytesutil:go_default_library",
-        "//shared/mputil:go_default_library",
         "//shared/params:go_default_library",
-        "//shared/runutil:go_default_library",
         "//shared/sszutil:go_default_library",
         "//time:go_default_library",
         "//time/slots:go_default_library",
@@ -159,6 +158,7 @@ go_test(
     embed = [":go_default_library"],
     shard_count = 4,
     deps = [
+        "//async/abool:go_default_library",
         "//beacon-chain/blockchain:go_default_library",
         "//beacon-chain/blockchain/testing:go_default_library",
         "//beacon-chain/cache:go_default_library",
@@ -191,7 +191,6 @@ go_test(
         "//proto/prysm/v1alpha1/block:go_default_library",
         "//proto/prysm/v1alpha1/metadata:go_default_library",
         "//proto/prysm/v1alpha1/wrapper:go_default_library",
-        "//shared/abool:go_default_library",
         "//shared/attestationutil:go_default_library",
         "//shared/bytesutil:go_default_library",
         "//shared/params:go_default_library",

beacon-chain/sync/fork_watcher_test.go

@@ -6,12 +6,12 @@ import (
 	"time"
 
 	types "github.com/prysmaticlabs/eth2-types"
+	"github.com/prysmaticlabs/prysm/async/abool"
 	mockChain "github.com/prysmaticlabs/prysm/beacon-chain/blockchain/testing"
 	"github.com/prysmaticlabs/prysm/beacon-chain/p2p"
 	p2ptest "github.com/prysmaticlabs/prysm/beacon-chain/p2p/testing"
 	mockSync "github.com/prysmaticlabs/prysm/beacon-chain/sync/initial-sync/testing"
 	"github.com/prysmaticlabs/prysm/network/forks"
-	"github.com/prysmaticlabs/prysm/shared/abool"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	"github.com/prysmaticlabs/prysm/shared/testutil/assert"
 )

beacon-chain/sync/initial-sync/BUILD.bazel

@@ -16,6 +16,7 @@ go_library(
     importpath = "github.com/prysmaticlabs/prysm/beacon-chain/sync/initial-sync",
     visibility = ["//beacon-chain:__subpackages__"],
     deps = [
+        "//async/abool:go_default_library",
         "//beacon-chain/blockchain:go_default_library",
         "//beacon-chain/core:go_default_library",
         "//beacon-chain/core/feed:go_default_library",
@@ -33,7 +34,6 @@ go_library(
         "//proto/prysm/v1alpha1:go_default_library",
         "//proto/prysm/v1alpha1/block:go_default_library",
         "//runtime:go_default_library",
-        "//shared/abool:go_default_library",
         "//shared/bytesutil:go_default_library",
         "//shared/params:go_default_library",
         "//time:go_default_library",
@@ -108,6 +108,8 @@ go_test(
     ],
     embed = [":go_default_library"],
     deps = [
+        "//async/abool:go_default_library",
+        "//async/event:go_default_library",
         "//beacon-chain/blockchain/testing:go_default_library",
         "//beacon-chain/core:go_default_library",
         "//beacon-chain/core/feed:go_default_library",
@@ -127,9 +129,7 @@ go_test(
         "//proto/prysm/v1alpha1:go_default_library",
         "//proto/prysm/v1alpha1/block:go_default_library",
         "//proto/prysm/v1alpha1/wrapper:go_default_library",
-        "//shared/abool:go_default_library",
         "//shared/bytesutil:go_default_library",
-        "//shared/event:go_default_library",
         "//shared/params:go_default_library",
         "//shared/testutil:go_default_library",
         "//shared/testutil/assert:go_default_library",

beacon-chain/sync/initial-sync/round_robin_test.go

@@ -7,6 +7,7 @@ import (
 
 	"github.com/paulbellamy/ratecounter"
 	types "github.com/prysmaticlabs/eth2-types"
+	"github.com/prysmaticlabs/prysm/async/abool"
 	mock "github.com/prysmaticlabs/prysm/beacon-chain/blockchain/testing"
 	dbtest "github.com/prysmaticlabs/prysm/beacon-chain/db/testing"
 	p2pt "github.com/prysmaticlabs/prysm/beacon-chain/p2p/testing"
@@ -14,7 +15,6 @@ import (
 	eth "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/block"
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/wrapper"
-	"github.com/prysmaticlabs/prysm/shared/abool"
 	"github.com/prysmaticlabs/prysm/shared/testutil"
 	"github.com/prysmaticlabs/prysm/shared/testutil/assert"
 	"github.com/prysmaticlabs/prysm/shared/testutil/require"

beacon-chain/sync/initial-sync/service.go

@@ -9,6 +9,7 @@ import (
 
 	"github.com/paulbellamy/ratecounter"
 	"github.com/pkg/errors"
+	"github.com/prysmaticlabs/prysm/async/abool"
 	"github.com/prysmaticlabs/prysm/beacon-chain/blockchain"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/feed"
@@ -18,7 +19,6 @@ import (
 	"github.com/prysmaticlabs/prysm/beacon-chain/p2p"
 	"github.com/prysmaticlabs/prysm/cmd/beacon-chain/flags"
 	"github.com/prysmaticlabs/prysm/runtime"
-	"github.com/prysmaticlabs/prysm/shared/abool"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	prysmTime "github.com/prysmaticlabs/prysm/time"
 	"github.com/sirupsen/logrus"

beacon-chain/sync/initial-sync/service_test.go

@@ -8,6 +8,8 @@ import (
 
 	"github.com/paulbellamy/ratecounter"
 	types "github.com/prysmaticlabs/eth2-types"
+	"github.com/prysmaticlabs/prysm/async/abool"
+	"github.com/prysmaticlabs/prysm/async/event"
 	mock "github.com/prysmaticlabs/prysm/beacon-chain/blockchain/testing"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/feed"
@@ -17,8 +19,6 @@ import (
 	"github.com/prysmaticlabs/prysm/cmd/beacon-chain/flags"
 	eth "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/wrapper"
-	"github.com/prysmaticlabs/prysm/shared/abool"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	"github.com/prysmaticlabs/prysm/shared/testutil"
 	"github.com/prysmaticlabs/prysm/shared/testutil/assert"

beacon-chain/sync/pending_attestations_queue.go

@@ -7,13 +7,13 @@ import (
 
 	pubsub "github.com/libp2p/go-libp2p-pubsub"
 	types "github.com/prysmaticlabs/eth2-types"
+	"github.com/prysmaticlabs/prysm/async"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
 	"github.com/prysmaticlabs/prysm/crypto/rand"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
 	"github.com/prysmaticlabs/prysm/shared/params"
-	"github.com/prysmaticlabs/prysm/shared/runutil"
 	"github.com/prysmaticlabs/prysm/time/slots"
 	"github.com/sirupsen/logrus"
 	"go.opencensus.io/trace"
@@ -26,7 +26,7 @@ var processPendingAttsPeriod = slots.DivideSlotBy(2 /* twice per slot */)
 func (s *Service) processPendingAttsQueue() {
 	// Prevents multiple queue processing goroutines (invoked by RunEvery) from contending for data.
 	mutex := new(sync.Mutex)
-	runutil.RunEvery(s.ctx, processPendingAttsPeriod, func() {
+	async.RunEvery(s.ctx, processPendingAttsPeriod, func() {
 		mutex.Lock()
 		if err := s.processPendingAtts(s.ctx); err != nil {
 			log.WithError(err).Debugf("Could not process pending attestation: %v", err)

beacon-chain/sync/pending_attestations_queue_test.go

@@ -9,6 +9,7 @@ import (
 	"github.com/libp2p/go-libp2p-core/network"
 	types "github.com/prysmaticlabs/eth2-types"
 	"github.com/prysmaticlabs/go-bitfield"
+	"github.com/prysmaticlabs/prysm/async/abool"
 	mock "github.com/prysmaticlabs/prysm/beacon-chain/blockchain/testing"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
 	dbtest "github.com/prysmaticlabs/prysm/beacon-chain/db/testing"
@@ -20,7 +21,6 @@ import (
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	pb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/wrapper"
-	"github.com/prysmaticlabs/prysm/shared/abool"
 	"github.com/prysmaticlabs/prysm/shared/attestationutil"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
 	"github.com/prysmaticlabs/prysm/shared/params"

beacon-chain/sync/pending_blocks_queue.go

@@ -9,6 +9,7 @@ import (
 
 	"github.com/pkg/errors"
 	types "github.com/prysmaticlabs/eth2-types"
+	"github.com/prysmaticlabs/prysm/async"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
 	p2ptypes "github.com/prysmaticlabs/prysm/beacon-chain/p2p/types"
@@ -17,7 +18,6 @@ import (
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/block"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
 	"github.com/prysmaticlabs/prysm/shared/params"
-	"github.com/prysmaticlabs/prysm/shared/runutil"
 	"github.com/prysmaticlabs/prysm/shared/sszutil"
 	"github.com/prysmaticlabs/prysm/time/slots"
 	"github.com/sirupsen/logrus"
@@ -35,7 +35,7 @@ const maxBlocksPerSlot = 3
 func (s *Service) processPendingBlocksQueue() {
 	// Prevents multiple queue processing goroutines (invoked by RunEvery) from contending for data.
 	locker := new(sync.Mutex)
-	runutil.RunEvery(s.ctx, processPendingBlocksPeriod, func() {
+	async.RunEvery(s.ctx, processPendingBlocksPeriod, func() {
 		locker.Lock()
 		if err := s.processPendingBlocks(s.ctx); err != nil {
 			log.WithError(err).Debug("Could not process pending blocks")

beacon-chain/sync/rpc_goodbye.go

@@ -9,10 +9,10 @@ import (
 	"github.com/libp2p/go-libp2p-core/network"
 	"github.com/libp2p/go-libp2p-core/peer"
 	types "github.com/prysmaticlabs/eth2-types"
+	"github.com/prysmaticlabs/prysm/async"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core"
 	"github.com/prysmaticlabs/prysm/beacon-chain/p2p"
 	p2ptypes "github.com/prysmaticlabs/prysm/beacon-chain/p2p/types"
-	"github.com/prysmaticlabs/prysm/shared/mputil"
 	"github.com/sirupsen/logrus"
 )
 
@@ -71,7 +71,7 @@ func (s *Service) sendGoodbye(ctx context.Context, id peer.ID) error {
 }
 
 func (s *Service) sendGoodByeAndDisconnect(ctx context.Context, code p2ptypes.RPCGoodbyeCode, id peer.ID) error {
-	lock := mputil.NewMultilock(id.String())
+	lock := async.NewMultilock(id.String())
 	lock.Lock()
 	defer lock.Unlock()
 	// In the event we are already disconnected, exit early from the

beacon-chain/sync/rpc_status.go

@@ -11,6 +11,7 @@ import (
 	"github.com/libp2p/go-libp2p-core/peer"
 	"github.com/pkg/errors"
 	types "github.com/prysmaticlabs/eth2-types"
+	"github.com/prysmaticlabs/prysm/async"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core"
 	"github.com/prysmaticlabs/prysm/beacon-chain/p2p"
 	"github.com/prysmaticlabs/prysm/beacon-chain/p2p/peers"
@@ -19,7 +20,6 @@ import (
 	pb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
 	"github.com/prysmaticlabs/prysm/shared/params"
-	"github.com/prysmaticlabs/prysm/shared/runutil"
 	prysmTime "github.com/prysmaticlabs/prysm/time"
 	"github.com/prysmaticlabs/prysm/time/slots"
 	"github.com/sirupsen/logrus"
@@ -29,7 +29,7 @@ import (
 func (s *Service) maintainPeerStatuses() {
 	// Run twice per epoch.
 	interval := time.Duration(params.BeaconConfig().SlotsPerEpoch.Div(2).Mul(params.BeaconConfig().SecondsPerSlot)) * time.Second
-	runutil.RunEvery(s.ctx, interval, func() {
+	async.RunEvery(s.ctx, interval, func() {
 		wg := new(sync.WaitGroup)
 		for _, pid := range s.cfg.P2P.Peers().Connected() {
 			wg.Add(1)
@@ -83,7 +83,7 @@ func (s *Service) resyncIfBehind() {
 	millisecondsPerEpoch := int64(params.BeaconConfig().SlotsPerEpoch.Mul(1000).Mul(params.BeaconConfig().SecondsPerSlot))
 	// Run sixteen times per epoch.
 	interval := time.Duration(millisecondsPerEpoch/16) * time.Millisecond
-	runutil.RunEvery(s.ctx, interval, func() {
+	async.RunEvery(s.ctx, interval, func() {
 		if s.shouldReSync() {
 			syncedEpoch := core.SlotToEpoch(s.cfg.Chain.HeadSlot())
 			// Factor number of expected minimum sync peers, to make sure that enough peers are

beacon-chain/sync/service.go

@@ -15,6 +15,8 @@ import (
 	pubsub "github.com/libp2p/go-libp2p-pubsub"
 	gcache "github.com/patrickmn/go-cache"
 	"github.com/pkg/errors"
+	"github.com/prysmaticlabs/prysm/async"
+	"github.com/prysmaticlabs/prysm/async/abool"
 	"github.com/prysmaticlabs/prysm/beacon-chain/blockchain"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/feed"
@@ -32,9 +34,7 @@ import (
 	"github.com/prysmaticlabs/prysm/cmd/beacon-chain/flags"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/runtime"
-	"github.com/prysmaticlabs/prysm/shared/abool"
 	"github.com/prysmaticlabs/prysm/shared/params"
-	"github.com/prysmaticlabs/prysm/shared/runutil"
 	prysmTime "github.com/prysmaticlabs/prysm/time"
 	"github.com/prysmaticlabs/prysm/time/slots"
 )
@@ -173,7 +173,7 @@ func (s *Service) Start() {
 	}
 
 	// Update sync metrics.
-	runutil.RunEvery(s.ctx, syncMetricsInterval, s.updateMetrics)
+	async.RunEvery(s.ctx, syncMetricsInterval, s.updateMetrics)
 }
 
 // Stop the regular sync service.

beacon-chain/sync/service_test.go

@@ -7,6 +7,7 @@ import (
 	"time"
 
 	gcache "github.com/patrickmn/go-cache"
+	"github.com/prysmaticlabs/prysm/async/abool"
 	mockChain "github.com/prysmaticlabs/prysm/beacon-chain/blockchain/testing"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/feed"
 	statefeed "github.com/prysmaticlabs/prysm/beacon-chain/core/feed/state"
@@ -15,7 +16,6 @@ import (
 	mockSync "github.com/prysmaticlabs/prysm/beacon-chain/sync/initial-sync/testing"
 	"github.com/prysmaticlabs/prysm/crypto/bls"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
-	"github.com/prysmaticlabs/prysm/shared/abool"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
 	"github.com/prysmaticlabs/prysm/shared/testutil"
 	"github.com/prysmaticlabs/prysm/shared/testutil/assert"

beacon-chain/sync/subscriber_test.go

@@ -12,6 +12,7 @@ import (
 	pubsub "github.com/libp2p/go-libp2p-pubsub"
 	pubsubpb "github.com/libp2p/go-libp2p-pubsub/pb"
 	types "github.com/prysmaticlabs/eth2-types"
+	"github.com/prysmaticlabs/prysm/async/abool"
 	mockChain "github.com/prysmaticlabs/prysm/beacon-chain/blockchain/testing"
 	"github.com/prysmaticlabs/prysm/beacon-chain/cache"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core"
@@ -25,7 +26,6 @@ import (
 	lruwrpr "github.com/prysmaticlabs/prysm/cache/lru"
 	"github.com/prysmaticlabs/prysm/network/forks"
 	pb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
-	"github.com/prysmaticlabs/prysm/shared/abool"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	"github.com/prysmaticlabs/prysm/shared/testutil"

beacon-chain/sync/validate_beacon_blocks_test.go

@@ -12,6 +12,7 @@ import (
 	pubsubpb "github.com/libp2p/go-libp2p-pubsub/pb"
 	gcache "github.com/patrickmn/go-cache"
 	types "github.com/prysmaticlabs/eth2-types"
+	"github.com/prysmaticlabs/prysm/async/abool"
 	mock "github.com/prysmaticlabs/prysm/beacon-chain/blockchain/testing"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
@@ -26,7 +27,6 @@ import (
 	"github.com/prysmaticlabs/prysm/crypto/bls"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/wrapper"
-	"github.com/prysmaticlabs/prysm/shared/abool"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	"github.com/prysmaticlabs/prysm/shared/testutil"

io/logs/BUILD.bazel

@@ -9,9 +9,9 @@ go_library(
     importpath = "github.com/prysmaticlabs/prysm/io/logs",
     visibility = ["//visibility:public"],
     deps = [
+        "//async/event:go_default_library",
         "//cache/lru:go_default_library",
         "//crypto/rand:go_default_library",
-        "//shared/event:go_default_library",
         "//shared/params:go_default_library",
         "@com_github_hashicorp_golang_lru//:go_default_library",
         "@com_github_sirupsen_logrus//:go_default_library",

io/logs/stream.go

@@ -4,9 +4,9 @@ import (
 	"io"
 
 	lru "github.com/hashicorp/golang-lru"
+	"github.com/prysmaticlabs/prysm/async/event"
 	lruwrpr "github.com/prysmaticlabs/prysm/cache/lru"
 	"github.com/prysmaticlabs/prysm/crypto/rand"
-	"github.com/prysmaticlabs/prysm/shared/event"
 )
 
 const (

shared/asyncutil/BUILD.bazel

@@ -1,19 +0,0 @@
-load("@prysm//tools/go:def.bzl", "go_library", "go_test")
-
-go_library(
-    name = "go_default_library",
-    srcs = ["debounce.go"],
-    importpath = "github.com/prysmaticlabs/prysm/shared/asyncutil",
-    visibility = ["//visibility:public"],
-)
-
-go_test(
-    name = "go_default_test",
-    srcs = ["debounce_test.go"],
-    embed = [":go_default_library"],
-    deps = [
-        "//shared/testutil:go_default_library",
-        "//shared/testutil/assert:go_default_library",
-        "//shared/testutil/require:go_default_library",
-    ],
-)

shared/interop/BUILD.bazel

@@ -9,6 +9,7 @@ go_library(
     importpath = "github.com/prysmaticlabs/prysm/shared/interop",
     visibility = ["//visibility:public"],
     deps = [
+        "//async:go_default_library",
         "//beacon-chain/core/helpers:go_default_library",
         "//beacon-chain/core/transition:go_default_library",
         "//beacon-chain/state/v1:go_default_library",
@@ -16,7 +17,6 @@ go_library(
         "//crypto/bls:go_default_library",
         "//crypto/hash:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
-        "//shared/mputil:go_default_library",
         "//shared/params:go_default_library",
         "//time:go_default_library",
         "@com_github_pkg_errors//:go_default_library",

shared/interop/generate_genesis_state.go

@@ -7,6 +7,7 @@ import (
 	"sync"
 
 	"github.com/pkg/errors"
+	"github.com/prysmaticlabs/prysm/async"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
 	coreState "github.com/prysmaticlabs/prysm/beacon-chain/core/transition"
 	v1 "github.com/prysmaticlabs/prysm/beacon-chain/state/v1"
@@ -14,7 +15,6 @@ import (
 	"github.com/prysmaticlabs/prysm/crypto/bls"
 	"github.com/prysmaticlabs/prysm/crypto/hash"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
-	"github.com/prysmaticlabs/prysm/shared/mputil"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	"github.com/prysmaticlabs/prysm/time"
 )
@@ -75,7 +75,7 @@ func GenerateGenesisStateFromDepositData(
 // GenerateDepositsFromData a list of deposit items by creating proofs for each of them from a sparse Merkle trie.
 func GenerateDepositsFromData(depositDataItems []*ethpb.Deposit_Data, trie *trie.SparseMerkleTrie) ([]*ethpb.Deposit, error) {
 	deposits := make([]*ethpb.Deposit, len(depositDataItems))
-	results, err := mputil.Scatter(len(depositDataItems), func(offset int, entries int, _ *sync.RWMutex) (interface{}, error) {
+	results, err := async.Scatter(len(depositDataItems), func(offset int, entries int, _ *sync.RWMutex) (interface{}, error) {
 		return generateDepositsFromData(depositDataItems[offset:offset+entries], offset, trie)
 	})
 	if err != nil {
@@ -115,7 +115,7 @@ func DepositDataFromKeys(privKeys []bls.SecretKey, pubKeys []bls.PublicKey) ([]*
 	}
 	depositDataItems := make([]*ethpb.Deposit_Data, len(privKeys))
 	depositDataRoots := make([][]byte, len(privKeys))
-	results, err := mputil.Scatter(len(privKeys), func(offset int, entries int, _ *sync.RWMutex) (interface{}, error) {
+	results, err := async.Scatter(len(privKeys), func(offset int, entries int, _ *sync.RWMutex) (interface{}, error) {
 		items, roots, err := depositDataFromKeys(privKeys[offset:offset+entries], pubKeys[offset:offset+entries])
 		return &depositData{items: items, roots: roots}, err
 	})

shared/interop/generate_keys.go

@@ -6,9 +6,9 @@ import (
 	"sync"
 
 	"github.com/pkg/errors"
+	"github.com/prysmaticlabs/prysm/async"
 	"github.com/prysmaticlabs/prysm/crypto/bls"
 	"github.com/prysmaticlabs/prysm/crypto/hash"
-	"github.com/prysmaticlabs/prysm/shared/mputil"
 )
 
 const (
@@ -25,7 +25,7 @@ func DeterministicallyGenerateKeys(startIndex, numKeys uint64) ([]bls.SecretKey,
 		secrets []bls.SecretKey
 		publics []bls.PublicKey
 	}
-	results, err := mputil.Scatter(int(numKeys), func(offset int, entries int, _ *sync.RWMutex) (interface{}, error) {
+	results, err := async.Scatter(int(numKeys), func(offset int, entries int, _ *sync.RWMutex) (interface{}, error) {
 		secs, pubs, err := deterministicallyGenerateKeys(uint64(offset)+startIndex, uint64(entries))
 		return &keys{secrets: secs, publics: pubs}, err
 	})

shared/runutil/BUILD.bazel

@@ -1,15 +0,0 @@
-load("@prysm//tools/go:def.bzl", "go_library", "go_test")
-
-go_library(
-    name = "go_default_library",
-    srcs = ["every.go"],
-    importpath = "github.com/prysmaticlabs/prysm/shared/runutil",
-    visibility = ["//visibility:public"],
-    deps = ["@com_github_sirupsen_logrus//:go_default_library"],
-)
-
-go_test(
-    name = "go_default_test",
-    srcs = ["every_test.go"],
-    deps = [":go_default_library"],
-)

tools/bootnode/BUILD.bazel

@@ -10,6 +10,7 @@ go_library(
     importpath = "github.com/prysmaticlabs/prysm/tools/bootnode",
     visibility = ["//visibility:private"],
     deps = [
+        "//async:go_default_library",
         "//beacon-chain/core/helpers:go_default_library",
         "//io/logs:go_default_library",
         "//network:go_default_library",
@@ -18,7 +19,6 @@ go_library(
         "//runtime/version:go_default_library",
         "//shared/bytesutil:go_default_library",
         "//shared/params:go_default_library",
-        "//shared/runutil:go_default_library",
         "@com_github_ethereum_go_ethereum//crypto:go_default_library",
         "@com_github_ethereum_go_ethereum//log:go_default_library",
         "@com_github_ethereum_go_ethereum//p2p/discover:go_default_library",

tools/bootnode/bootnode.go

@@ -32,6 +32,7 @@ import (
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promauto"
 	"github.com/prysmaticlabs/go-bitfield"
+	"github.com/prysmaticlabs/prysm/async"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
 	"github.com/prysmaticlabs/prysm/io/logs"
 	"github.com/prysmaticlabs/prysm/network"
@@ -40,7 +41,6 @@ import (
 	"github.com/prysmaticlabs/prysm/runtime/version"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
 	"github.com/prysmaticlabs/prysm/shared/params"
-	"github.com/prysmaticlabs/prysm/shared/runutil"
 	"github.com/sirupsen/logrus"
 )
 
@@ -119,7 +119,7 @@ func main() {
 
 	// Update metrics once per slot.
 	slotDuration := time.Duration(params.BeaconConfig().SecondsPerSlot)
-	runutil.RunEvery(context.Background(), slotDuration*time.Second, func() {
+	async.RunEvery(context.Background(), slotDuration*time.Second, func() {
 		updateMetrics(listener)
 	})
 

validator/accounts/BUILD.bazel

@@ -70,13 +70,13 @@ go_test(
     ],
     embed = [":go_default_library"],
     deps = [
+        "//async/event:go_default_library",
         "//cmd/validator/flags:go_default_library",
         "//crypto/bls:go_default_library",
         "//io/file:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
         "//proto/prysm/v1alpha1/validator-client:go_default_library",
         "//shared/bytesutil:go_default_library",
-        "//shared/event:go_default_library",
         "//shared/params:go_default_library",
         "//shared/petnames:go_default_library",
         "//shared/testutil/assert:go_default_library",

validator/accounts/accounts_list_test.go

@@ -13,11 +13,11 @@ import (
 	"github.com/golang/mock/gomock"
 	"github.com/google/uuid"
 	types "github.com/prysmaticlabs/eth2-types"
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/crypto/bls"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	validatorpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/validator-client"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/shared/petnames"
 	"github.com/prysmaticlabs/prysm/shared/testutil/assert"
 	"github.com/prysmaticlabs/prysm/shared/testutil/require"

validator/client/BUILD.bazel

@@ -22,6 +22,8 @@ go_library(
     visibility = ["//validator:__subpackages__"],
     deps = [
         "//api/grpc:go_default_library",
+        "//async:go_default_library",
+        "//async/event:go_default_library",
         "//beacon-chain/core:go_default_library",
         "//beacon-chain/core/altair:go_default_library",
         "//beacon-chain/core/helpers:go_default_library",
@@ -39,8 +41,6 @@ go_library(
         "//runtime/version:go_default_library",
         "//shared/blockutil:go_default_library",
         "//shared/bytesutil:go_default_library",
-        "//shared/event:go_default_library",
-        "//shared/mputil:go_default_library",
         "//shared/params:go_default_library",
         "//shared/slashutil:go_default_library",
         "//time:go_default_library",
@@ -105,6 +105,7 @@ go_test(
     ],
     embed = [":go_default_library"],
     deps = [
+        "//async/event:go_default_library",
         "//beacon-chain/core/helpers:go_default_library",
         "//cache/lru:go_default_library",
         "//config/features:go_default_library",
@@ -115,7 +116,6 @@ go_test(
         "//proto/prysm/v1alpha1/wrapper:go_default_library",
         "//runtime:go_default_library",
         "//shared/bytesutil:go_default_library",
-        "//shared/event:go_default_library",
         "//shared/params:go_default_library",
         "//shared/testutil:go_default_library",
         "//shared/testutil/assert:go_default_library",

validator/client/attest.go

@@ -10,6 +10,7 @@ import (
 
 	types "github.com/prysmaticlabs/eth2-types"
 	"github.com/prysmaticlabs/go-bitfield"
+	"github.com/prysmaticlabs/prysm/async"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
 	"github.com/prysmaticlabs/prysm/config/features"
 	"github.com/prysmaticlabs/prysm/crypto/hash"
@@ -18,7 +19,6 @@ import (
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/block"
 	validatorpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/validator-client"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
-	"github.com/prysmaticlabs/prysm/shared/mputil"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	prysmTime "github.com/prysmaticlabs/prysm/time"
 	"github.com/prysmaticlabs/prysm/time/slots"
@@ -50,7 +50,7 @@ func (v *validator) SubmitAttestation(ctx context.Context, slot types.Slot, pubK
 		tracing.AnnotateError(span, err)
 		return
 	}
-	lock := mputil.NewMultilock(b.String())
+	lock := async.NewMultilock(b.String())
 	lock.Lock()
 	defer lock.Unlock()
 

validator/client/attest_test.go

@@ -12,6 +12,7 @@ import (
 	"github.com/golang/mock/gomock"
 	types "github.com/prysmaticlabs/eth2-types"
 	"github.com/prysmaticlabs/go-bitfield"
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
 	"github.com/prysmaticlabs/prysm/config/features"
 	"github.com/prysmaticlabs/prysm/crypto/bls"
@@ -19,7 +20,6 @@ import (
 	validatorpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/validator-client"
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/wrapper"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	"github.com/prysmaticlabs/prysm/shared/testutil"
 	"github.com/prysmaticlabs/prysm/shared/testutil/assert"

validator/client/propose.go

@@ -8,6 +8,7 @@ import (
 
 	"github.com/pkg/errors"
 	types "github.com/prysmaticlabs/eth2-types"
+	"github.com/prysmaticlabs/prysm/async"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
 	"github.com/prysmaticlabs/prysm/crypto/bls"
@@ -18,7 +19,6 @@ import (
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/wrapper"
 	"github.com/prysmaticlabs/prysm/runtime/version"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
-	"github.com/prysmaticlabs/prysm/shared/mputil"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	prysmTime "github.com/prysmaticlabs/prysm/time"
 	"github.com/prysmaticlabs/prysm/validator/client/iface"
@@ -53,7 +53,7 @@ func (v *validator) proposeBlockPhase0(ctx context.Context, slot types.Slot, pub
 		log.Debug("Assigned to genesis slot, skipping proposal")
 		return
 	}
-	lock := mputil.NewMultilock(fmt.Sprint(iface.RoleProposer), string(pubKey[:]))
+	lock := async.NewMultilock(fmt.Sprint(iface.RoleProposer), string(pubKey[:]))
 	lock.Lock()
 	defer lock.Unlock()
 	ctx, span := trace.StartSpan(ctx, "validator.proposeBlockPhase0")
@@ -172,7 +172,7 @@ func (v *validator) proposeBlockAltair(ctx context.Context, slot types.Slot, pub
 	ctx, span := trace.StartSpan(ctx, "validator.proposeBlockAltair")
 	defer span.End()
 
-	lock := mputil.NewMultilock(fmt.Sprint(iface.RoleProposer), string(pubKey[:]))
+	lock := async.NewMultilock(fmt.Sprint(iface.RoleProposer), string(pubKey[:]))
 	lock.Lock()
 	defer lock.Unlock()
 

validator/client/runner_test.go

@@ -7,8 +7,8 @@ import (
 	"time"
 
 	types "github.com/prysmaticlabs/eth2-types"
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/config/features"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/shared/testutil/assert"
 	"github.com/prysmaticlabs/prysm/shared/testutil/require"
 	"github.com/prysmaticlabs/prysm/validator/client/iface"

validator/client/service.go

@@ -14,11 +14,11 @@ import (
 	"github.com/pkg/errors"
 	types "github.com/prysmaticlabs/eth2-types"
 	grpcutil "github.com/prysmaticlabs/prysm/api/grpc"
+	"github.com/prysmaticlabs/prysm/async/event"
 	lruwrpr "github.com/prysmaticlabs/prysm/cache/lru"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/block"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	accountsiface "github.com/prysmaticlabs/prysm/validator/accounts/iface"
 	"github.com/prysmaticlabs/prysm/validator/accounts/wallet"

validator/client/validator.go

@@ -18,6 +18,7 @@ import (
 	lru "github.com/hashicorp/golang-lru"
 	"github.com/pkg/errors"
 	types "github.com/prysmaticlabs/eth2-types"
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/altair"
 	"github.com/prysmaticlabs/prysm/config/features"
@@ -26,7 +27,6 @@ import (
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/block"
 	"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/wrapper"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	"github.com/prysmaticlabs/prysm/time/slots"
 	accountsiface "github.com/prysmaticlabs/prysm/validator/accounts/iface"

validator/client/validator_test.go

@@ -12,12 +12,12 @@ import (
 
 	"github.com/golang/mock/gomock"
 	types "github.com/prysmaticlabs/eth2-types"
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/config/features"
 	"github.com/prysmaticlabs/prysm/crypto/bls"
 	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
 	validatorpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/validator-client"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	"github.com/prysmaticlabs/prysm/shared/testutil"
 	"github.com/prysmaticlabs/prysm/shared/testutil/assert"

validator/db/kv/BUILD.bazel

@@ -21,15 +21,15 @@ go_library(
     importpath = "github.com/prysmaticlabs/prysm/validator/db/kv",
     visibility = ["//validator:__subpackages__"],
     deps = [
+        "//async/abool:go_default_library",
+        "//async/event:go_default_library",
         "//beacon-chain/core:go_default_library",
         "//config/features:go_default_library",
         "//io/file:go_default_library",
         "//monitoring/progress:go_default_library",
         "//monitoring/tracing:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
-        "//shared/abool:go_default_library",
         "//shared/bytesutil:go_default_library",
-        "//shared/event:go_default_library",
         "//shared/params:go_default_library",
         "//shared/slashutil:go_default_library",
         "@com_github_pkg_errors//:go_default_library",

validator/db/kv/db.go

@@ -10,10 +10,10 @@ import (
 	"github.com/pkg/errors"
 	"github.com/prometheus/client_golang/prometheus"
 	prombolt "github.com/prysmaticlabs/prombbolt"
+	"github.com/prysmaticlabs/prysm/async/abool"
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/config/features"
 	"github.com/prysmaticlabs/prysm/io/file"
-	"github.com/prysmaticlabs/prysm/shared/abool"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	bolt "go.etcd.io/bbolt"
 )

validator/keymanager/BUILD.bazel

@@ -13,9 +13,9 @@ go_library(
         "//validator:__subpackages__",
     ],
     deps = [
+        "//async/event:go_default_library",
         "//crypto/bls:go_default_library",
         "//proto/prysm/v1alpha1/validator-client:go_default_library",
-        "//shared/event:go_default_library",
     ],
 )
 

validator/keymanager/derived/BUILD.bazel

@@ -13,11 +13,11 @@ go_library(
         "//validator:__subpackages__",
     ],
     deps = [
+        "//async/event:go_default_library",
         "//crypto/bls:go_default_library",
         "//crypto/rand:go_default_library",
         "//io/prompt:go_default_library",
         "//proto/prysm/v1alpha1/validator-client:go_default_library",
-        "//shared/event:go_default_library",
         "//validator/accounts/iface:go_default_library",
         "//validator/keymanager:go_default_library",
         "//validator/keymanager/imported:go_default_library",

validator/keymanager/derived/keymanager.go

@@ -5,9 +5,9 @@ import (
 	"fmt"
 
 	"github.com/pkg/errors"
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/crypto/bls"
 	validatorpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/validator-client"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/validator/accounts/iface"
 	"github.com/prysmaticlabs/prysm/validator/keymanager"
 	"github.com/prysmaticlabs/prysm/validator/keymanager/imported"

validator/keymanager/imported/BUILD.bazel

@@ -17,14 +17,14 @@ go_library(
         "//validator:__subpackages__",
     ],
     deps = [
+        "//async:go_default_library",
+        "//async/event:go_default_library",
         "//config/features:go_default_library",
         "//crypto/bls:go_default_library",
         "//io/file:go_default_library",
         "//io/prompt:go_default_library",
         "//proto/prysm/v1alpha1/validator-client:go_default_library",
-        "//shared/asyncutil:go_default_library",
         "//shared/bytesutil:go_default_library",
-        "//shared/event:go_default_library",
         "//shared/interop:go_default_library",
         "//shared/petnames:go_default_library",
         "//validator/accounts/iface:go_default_library",
@@ -50,10 +50,10 @@ go_test(
     ],
     embed = [":go_default_library"],
     deps = [
+        "//async/event:go_default_library",
         "//crypto/bls:go_default_library",
         "//proto/prysm/v1alpha1/validator-client:go_default_library",
         "//shared/bytesutil:go_default_library",
-        "//shared/event:go_default_library",
         "//shared/testutil/assert:go_default_library",
         "//shared/testutil/require:go_default_library",
         "//validator/accounts/testing:go_default_library",

validator/keymanager/imported/keymanager.go

@@ -10,10 +10,10 @@ import (
 
 	"github.com/google/uuid"
 	"github.com/pkg/errors"
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/crypto/bls"
 	validatorpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/validator-client"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/shared/interop"
 	"github.com/prysmaticlabs/prysm/shared/petnames"
 	"github.com/prysmaticlabs/prysm/validator/accounts/iface"

validator/keymanager/imported/refresh.go

@@ -8,10 +8,10 @@ import (
 
 	"github.com/fsnotify/fsnotify"
 	"github.com/pkg/errors"
+	"github.com/prysmaticlabs/prysm/async"
 	"github.com/prysmaticlabs/prysm/config/features"
 	"github.com/prysmaticlabs/prysm/crypto/bls"
 	"github.com/prysmaticlabs/prysm/io/file"
-	"github.com/prysmaticlabs/prysm/shared/asyncutil"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
 	"github.com/prysmaticlabs/prysm/validator/keymanager"
 	keystorev4 "github.com/wealdtech/go-eth2-wallet-encryptor-keystorev4"
@@ -49,7 +49,7 @@ func (km *Keymanager) listenForAccountChanges(ctx context.Context) {
 	// We debounce events sent over the file changes channel by an interval
 	// to ensure we are not overwhelmed by a ton of events fired over the channel in
 	// a short span of time.
-	go asyncutil.Debounce(ctx, debounceFileChangesInterval, fileChangesChan, func(event interface{}) {
+	go async.Debounce(ctx, debounceFileChangesInterval, fileChangesChan, func(event interface{}) {
 		ev, ok := event.(fsnotify.Event)
 		if !ok {
 			log.Errorf("Type %T is not a valid file system event", event)

validator/keymanager/imported/refresh_test.go

@@ -6,9 +6,9 @@ import (
 	"testing"
 
 	"github.com/google/uuid"
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/crypto/bls"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/shared/testutil/assert"
 	"github.com/prysmaticlabs/prysm/shared/testutil/require"
 	mock "github.com/prysmaticlabs/prysm/validator/accounts/testing"

validator/keymanager/remote/BUILD.bazel

@@ -14,10 +14,10 @@ go_library(
         "//validator:__subpackages__",
     ],
     deps = [
+        "//async/event:go_default_library",
         "//crypto/bls:go_default_library",
         "//proto/prysm/v1alpha1/validator-client:go_default_library",
         "//shared/bytesutil:go_default_library",
-        "//shared/event:go_default_library",
         "//validator/keymanager:go_default_library",
         "@com_github_logrusorgru_aurora//:go_default_library",
         "@com_github_pkg_errors//:go_default_library",
@@ -33,10 +33,10 @@ go_test(
     srcs = ["keymanager_test.go"],
     embed = [":go_default_library"],
     deps = [
+        "//async/event:go_default_library",
         "//crypto/bls:go_default_library",
         "//proto/prysm/v1alpha1/validator-client:go_default_library",
         "//shared/bytesutil:go_default_library",
-        "//shared/event:go_default_library",
         "//shared/params:go_default_library",
         "//shared/testutil/assert:go_default_library",
         "//shared/testutil/require:go_default_library",

validator/keymanager/remote/keymanager.go

@@ -15,10 +15,10 @@ import (
 	"github.com/golang/protobuf/ptypes/empty"
 	"github.com/logrusorgru/aurora"
 	"github.com/pkg/errors"
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/crypto/bls"
 	validatorpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/validator-client"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/validator/keymanager"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials"

validator/keymanager/remote/keymanager_test.go

@@ -12,10 +12,10 @@ import (
 	"testing"
 
 	"github.com/golang/mock/gomock"
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/crypto/bls"
 	validatorpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/validator-client"
 	"github.com/prysmaticlabs/prysm/shared/bytesutil"
-	"github.com/prysmaticlabs/prysm/shared/event"
 	"github.com/prysmaticlabs/prysm/shared/params"
 	"github.com/prysmaticlabs/prysm/shared/testutil/assert"
 	"github.com/prysmaticlabs/prysm/shared/testutil/require"

validator/keymanager/remote/mock_keymanager.go

@@ -3,9 +3,9 @@ package remote
 import (
 	"context"
 
+	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/crypto/bls"
 	validatorpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/validator-client"
-	"github.com/prysmaticlabs/prysm/shared/event"
 )
 
 // MockKeymanager --