fix: fix cpu exp destroy mode when suid is empty

Signed-off-by: Icesource <gonghuajian.ghj@alibaba-inc.com>

Author: Icesource

exec/exec.go

@@ -30,9 +30,9 @@ var cl = channel.NewLocalChannel()
 // stop hang process
 func Destroy(ctx context.Context, c spec.Channel, action string) *spec.Response {
 	suid := ctx.Value(spec.Uid)
-	/* If suid is specified, it will be deleted exactly 
+	/* If suid is specified, it will be deleted exactly
 	 * according to suid, otherwise it will be based on action. */
-	if suid != nil && suid != spec.UnknownUid {
+	if suid != nil && suid != spec.UnknownUid && suid != "" {
 		ctx = context.WithValue(ctx, channel.ProcessKey, suid)
 	} else {
 		ctx = context.WithValue(ctx, channel.ProcessKey, action)

main.go

@@ -106,13 +106,14 @@ func main() {
 		}
 
 		uid := expModel.ActionFlags[model.UidFlag.Name]
-		if uid == "" {
-			uid, _ = util.GenerateUid()
-		}
 
 		ctx = context.WithValue(ctx, spec.Uid, uid)
 		if mode == spec.Destroy {
 			ctx = spec.SetDestroyFlag(ctx, uid)
+		} else {
+			if uid == "" {
+				uid, _ = util.GenerateUid()
+			}
 		}
 
 		if expModel.ActionFlags[model.DebugFlag.Name] == spec.True {