From d0d5eb2605461569e985f9d502162b0f54392873 Mon Sep 17 00:00:00 2001
From: Sergey Matveev <stargrave@stargrave.org>
Date: Tue, 7 Jan 2025 13:59:37 +0300
Subject: [PATCH] Randomise sleep time while waiting for the lock

---
 run.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/run.go b/run.go
index 5423b49..1b00bf0 100644
--- a/run.go
+++ b/run.go
@@ -27,6 +27,7 @@ import (
 	"io"
 	"io/fs"
 	"log"
+	mrand "math/rand"
 	"os"
 	"os/exec"
 	"path"
@@ -228,7 +229,7 @@ func runScript(tgt *Tgt, errs chan error, forced, traced bool) error {
 		LockAgain:
 			if err = unix.FcntlFlock(fdLock.Fd(), unix.F_SETLKW, &flock); err != nil {
 				if errors.Is(err, unix.EDEADLK) || errors.Is(err, unix.EINTR) {
-					time.Sleep(10 * time.Millisecond)
+					time.Sleep(time.Duration(1+mrand.Intn(20)) * time.Millisecond)
 					goto LockAgain
 				}
 				log.Fatalln(err, fdLock.Name())
-- 
2.48.1