+++ /dev/null
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-/*
- * Ceph - scalable distributed file system
- *
- * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
- *
- * This is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License version 2.1, as published by the Free Software
- * Foundation. See file COPYING.
- *
- */
-
-
-#ifndef CEPH_LOCALLOCK_H
-#define CEPH_LOCALLOCK_H
-
-#include "SimpleLock.h"
-
-class LocalLock : public SimpleLock {
-public:
- LocalLock(MDSCacheObject *o, LockType *t) :
- SimpleLock(o, t) {
- set_state(LOCK_LOCK); // always.
- }
-
- bool is_locallock() const override {
- return true;
- }
-
- bool can_xlock_local() const {
- return !is_wrlocked() && (get_xlock_by() == MutationRef());
- }
-
- bool can_wrlock() const {
- return !is_xlocked();
- }
- void get_wrlock(client_t client) {
- ceph_assert(can_wrlock());
- SimpleLock::get_wrlock();
- last_wrlock_client = client;
- }
- void put_wrlock() {
- SimpleLock::put_wrlock();
- if (get_num_wrlocks() == 0)
- last_wrlock_client = client_t();
- }
- client_t get_last_wrlock_client() const {
- return last_wrlock_client;
- }
-
- void print(ostream& out) const override {
- out << "(";
- _print(out);
- if (last_wrlock_client >= 0)
- out << " last_client=" << last_wrlock_client;
- out << ")";
- }
-
-private:
- client_t last_wrlock_client;
-};
-#endif