chore: simplify linux nocgroup logic (#3949)

core/stat/internal/cpu_linux.go

@@ -1,5 +1,3 @@
-//go:build !nocgroup
-
 package internal
 
 import (
@@ -25,6 +23,7 @@ var (
 	preTotal  uint64
 	limit     float64
 	cores     uint64
+	noCgroup  bool
 	initOnce  sync.Once
 )
 
@@ -32,6 +31,7 @@ var (
 func initialize() {
 	cpus, err := effectiveCpus()
 	if err != nil {
+		noCgroup = true
 		logx.Error(err)
 		return
 	}
@@ -47,12 +47,14 @@ func initialize() {
 
 	preSystem, err = systemCpuUsage()
 	if err != nil {
+		noCgroup = true
 		logx.Error(err)
 		return
 	}
 
 	preTotal, err = cpuUsage()
 	if err != nil {
+		noCgroup = true
 		logx.Error(err)
 		return
 	}
@@ -62,6 +64,10 @@ func initialize() {
 func RefreshCpu() uint64 {
 	initOnce.Do(initialize)
 
+	if noCgroup {
+		return 0
+	}
+
 	total, err := cpuUsage()
 	if err != nil {
 		return 0

core/stat/internal/cpu_other.go

@@ -1,4 +1,4 @@
-//go:build !linux || nocgroup
+//go:build !linux
 
 package internal
 

core/stores/sqlx/stmt.go

@@ -141,7 +141,6 @@ func (s statement) QueryRowsPartialCtx(ctx context.Context, v any, args ...any)
 func (s statement) queryRows(ctx context.Context, scanFn func(any, rowsScanner) error,
 	v any, args ...any) error {
 	var scanFailed bool
-
 	err := s.brk.DoWithAcceptable(func() error {
 		return queryStmt(ctx, s.stmt, func(rows *sql.Rows) error {
 			err := scanFn(v, rows)