From 10697b85d3d01e9941f79b0b2b68cb9dd964f3f3 Mon Sep 17 00:00:00 2001
From: phuslu <phus.lu@gmail.com>
Date: Sun, 10 Mar 2024 11:38:53 +0800
Subject: [PATCH] use cheaprandn as Fastrandn for go1.22

---
 logger.go        |  6 ------
 logger_go1.18.go | 14 ++++++++++++++
 logger_go1.22.go | 14 ++++++++++++++
 3 files changed, 28 insertions(+), 6 deletions(-)
 create mode 100644 logger_go1.18.go
 create mode 100644 logger_go1.22.go

diff --git a/logger.go b/logger.go
index 45d8897e..f5d128a8 100644
--- a/logger.go
+++ b/logger.go
@@ -2135,9 +2135,3 @@ func absClock(abs uint64) (hour, min, sec int)
 //go:noescape
 //go:linkname callers runtime.callers
 func callers(skip int, pcbuf []uintptr) int
-
-// Fastrandn returns a pseudorandom uint32 in [0,n).
-//
-//go:noescape
-//go:linkname Fastrandn runtime.fastrandn
-func Fastrandn(x uint32) uint32
diff --git a/logger_go1.18.go b/logger_go1.18.go
new file mode 100644
index 00000000..e653d509
--- /dev/null
+++ b/logger_go1.18.go
@@ -0,0 +1,14 @@
+//go:build go1.18 && !go1.22
+// +build go1.18,!go1.22
+
+package log
+
+import (
+	_ "unsafe"
+)
+
+// Fastrandn returns a pseudorandom uint32 in [0,n).
+//
+//go:noescape
+//go:linkname Fastrandn runtime.fastrandn
+func Fastrandn(x uint32) uint32
diff --git a/logger_go1.22.go b/logger_go1.22.go
new file mode 100644
index 00000000..5565d94f
--- /dev/null
+++ b/logger_go1.22.go
@@ -0,0 +1,14 @@
+//go:build go1.22
+// +build go1.22
+
+package log
+
+import (
+	_ "unsafe"
+)
+
+// Fastrandn returns a pseudorandom uint32 in [0,n).
+//
+//go:noescape
+//go:linkname Fastrandn runtime.cheaprandn
+func Fastrandn(x uint32) uint32