1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef NET_TOOLS_QUIC_QUIC_EPOLL_CLOCK_H_
6#define NET_TOOLS_QUIC_QUIC_EPOLL_CLOCK_H_
7
8#include "base/compiler_specific.h"
9#include "net/quic/quic_clock.h"
10#include "net/quic/quic_time.h"
11
12namespace net {
13
14class EpollServer;
15
16namespace tools {
17
18// Clock to efficiently retrieve an approximately accurate time from an
19// EpollServer.
20class QuicEpollClock : public QuicClock {
21 public:
22  explicit QuicEpollClock(EpollServer* epoll_server);
23  virtual ~QuicEpollClock();
24
25  // Returns the approximate current time as a QuicTime object.
26  virtual QuicTime ApproximateNow() const OVERRIDE;
27
28  // Returns the current time as a QuicTime object.
29  // Note: this use significant resources please use only if needed.
30  virtual QuicTime Now() const OVERRIDE;
31
32 protected:
33  EpollServer* epoll_server_;
34};
35
36}  // namespace tools
37}  // namespace net
38
39#endif  // NET_TOOLS_QUIC_QUIC_EPOLL_CLOCK_H_
40