From 6f19ace5e2a9a76ac6168c73af11d1d32a0e1d9c Mon Sep 17 00:00:00 2001
From: Daniel Liu <liudaniel@qq.com>
Date: Tue, 17 Dec 2024 11:02:22 +0800
Subject: [PATCH] common/mclock: remove dependency on
 github.com/aristanetworks/goarista (#22211)

---
 common/mclock/mclock.go | 12 ++++++++----
 common/mclock/mclock.s  |  1 +
 go.mod                  |  1 -
 go.sum                  |  2 --
 4 files changed, 9 insertions(+), 7 deletions(-)
 create mode 100644 common/mclock/mclock.s

diff --git a/common/mclock/mclock.go b/common/mclock/mclock.go
index 3aca257cb3..c05738cf2b 100644
--- a/common/mclock/mclock.go
+++ b/common/mclock/mclock.go
@@ -20,15 +20,19 @@ package mclock
 import (
 	"time"
 
-	"github.com/aristanetworks/goarista/monotime"
+	_ "unsafe" // for go:linkname
 )
 
+//go:noescape
+//go:linkname nanotime runtime.nanotime
+func nanotime() int64
+
 // AbsTime represents absolute monotonic time.
-type AbsTime time.Duration
+type AbsTime int64
 
 // Now returns the current absolute monotonic time.
 func Now() AbsTime {
-	return AbsTime(monotime.Now())
+	return AbsTime(nanotime())
 }
 
 // Add returns t + d as absolute time.
@@ -74,7 +78,7 @@ type System struct{}
 
 // Now returns the current monotonic time.
 func (c System) Now() AbsTime {
-	return AbsTime(monotime.Now())
+	return Now()
 }
 
 // Sleep blocks for the given duration.
diff --git a/common/mclock/mclock.s b/common/mclock/mclock.s
new file mode 100644
index 0000000000..99a7a878f0
--- /dev/null
+++ b/common/mclock/mclock.s
@@ -0,0 +1 @@
+// This file exists in order to be able to use go:linkname.
diff --git a/go.mod b/go.mod
index 23a0995a49..9adb083eca 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,6 @@ go 1.22
 
 require (
 	github.com/VictoriaMetrics/fastcache v1.12.2
-	github.com/aristanetworks/goarista v0.0.0-20231019142648-8c6f0862ab98
 	github.com/btcsuite/btcd v0.0.0-20171128150713-2e60448ffcc6
 	github.com/cespare/cp v1.1.1
 	github.com/davecgh/go-spew v1.1.1
diff --git a/go.sum b/go.sum
index bb2ab2b777..e59acf3916 100644
--- a/go.sum
+++ b/go.sum
@@ -4,8 +4,6 @@ github.com/VictoriaMetrics/fastcache v1.12.2 h1:N0y9ASrJ0F6h0QaC3o6uJb3NIZ9VKLjC
 github.com/VictoriaMetrics/fastcache v1.12.2/go.mod h1:AmC+Nzz1+3G2eCPapF6UcsnkThDcMsQicp4xDukwJYI=
 github.com/allegro/bigcache v1.2.1-0.20190218064605-e24eb225f156 h1:eMwmnE/GDgah4HI848JfFxHt+iPb26b4zyfspmqY0/8=
 github.com/allegro/bigcache v1.2.1-0.20190218064605-e24eb225f156/go.mod h1:Cb/ax3seSYIx7SuZdm2G2xzfwmv3TPSk2ucNfQESPXM=
-github.com/aristanetworks/goarista v0.0.0-20231019142648-8c6f0862ab98 h1:7buXGE+m4OPjyo8rUJgA8RmARNMq+m99JJLR+Z+ZWN0=
-github.com/aristanetworks/goarista v0.0.0-20231019142648-8c6f0862ab98/go.mod h1:DLTg9Gp4FAXF5EpqYBQnUeBbRsNLY7b2HR94TE5XQtE=
 github.com/bits-and-blooms/bitset v1.5.0 h1:NpE8frKRLGHIcEzkR+gZhiioW1+WbYV6fKwD6ZIpQT8=
 github.com/bits-and-blooms/bitset v1.5.0/go.mod h1:gIdJ4wp64HaoK2YrL1Q5/N7Y16edYb8uY+O0FJTyyDA=
 github.com/btcsuite/btcd v0.0.0-20171128150713-2e60448ffcc6 h1:Eey/GGQ/E5Xp1P2Lyx1qj007hLZfbi0+CoVeJruGCtI=