X-Git-Url: http://git.giacomolli.uk/onechat/blobdiff_plain/feda522eba3e2a27c91741c77d0d01f1840c0004..7b6d0a81e0f3c8e33b1b76d5ecbc5bdb25a87249:/log.go

diff --git a/log.go b/log.go
index dfb6e70..c3d7190 100644
--- a/log.go
+++ b/log.go
@@ -7,14 +7,10 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
-	"syscall"
 	"time"
 	"unicode/utf8"
 )
 
-// errLocked tells that another process owns the chat.
-var errLocked = errors.New("another process owns the chat")
-
 // kinds holds the kinds that a message can have.
 var kinds = map[string]bool{
 	"user":  true,
@@ -250,23 +246,3 @@ func validateMessage(message Message) error {
 
 	return nil
 }
-
-// lockFile opens the file at path and takes an exclusive lock on it. The lock
-// stays until the file closes or the process ends.
-func lockFile(path string) (*os.File, error) {
-	file, err := os.OpenFile(path, os.O_CREATE|os.O_RDWR, 0o600)
-	if err != nil {
-		return nil, fmt.Errorf("open lock file: %w", err)
-	}
-
-	err = syscall.Flock(int(file.Fd()), syscall.LOCK_EX|syscall.LOCK_NB)
-	if errors.Is(err, syscall.EWOULDBLOCK) {
-		err = errLocked
-	}
-
-	if err != nil {
-		return nil, errors.Join(fmt.Errorf("lock chat: %w", err), file.Close())
-	}
-
-	return file, nil
-}