2 files changed, 45 insertions, 0 deletions
diff --git a/modules/util/runtime.go b/modules/util/runtime.go
new file mode 100644
index 0000000000..91ec3c869c
--- /dev/null
+++ b/modules/util/runtime.go
@@ -0,0 +1,13 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package util
+
+import "runtime"
+
+func CallerFuncName(skip int) string {
+	pc := make([]uintptr, 1)
+	runtime.Callers(skip+1, pc)
+	funcName := runtime.FuncForPC(pc[0]).Name()
+	return funcName
+}
diff --git a/modules/util/runtime_test.go b/modules/util/runtime_test.go
new file mode 100644
index 0000000000..20f9063b0b
--- /dev/null
+++ b/modules/util/runtime_test.go
@@ -0,0 +1,32 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package util
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestCallerFuncName(t *testing.T) {
+	s := CallerFuncName(1)
+	assert.Equal(t, "code.gitea.io/gitea/modules/util.TestCallerFuncName", s)
+}
+
+func BenchmarkCallerFuncName(b *testing.B) {
+	// BenchmarkCaller/sprintf-12         	12744829	        95.49 ns/op
+	b.Run("sprintf", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			_ = fmt.Sprintf("aaaaaaaaaaaaaaaa %s %s %s", "bbbbbbbbbbbbbbbbbbb", b.Name(), "ccccccccccccccccccccc")
+		}
+	})
+	// BenchmarkCaller/caller-12          	10625133	       113.6 ns/op
+	// It is almost as fast as fmt.Sprintf
+	b.Run("caller", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			CallerFuncName(1)
+		}
+	})
+}