| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "net/quic/quic_clock_skew_detector.h" |
| |
| namespace net { |
| |
| QuicClockSkewDetector::QuicClockSkewDetector(base::TimeTicks ticks_time, |
| base::Time wall_time) |
| : last_ticks_time_(ticks_time), last_wall_time_(wall_time) {} |
| |
| bool QuicClockSkewDetector::ClockSkewDetected(base::TimeTicks ticks_now, |
| base::Time wall_now) { |
| base::TimeDelta ticks_delta = ticks_now - last_ticks_time_; |
| base::TimeDelta wall_delta = wall_now - last_wall_time_; |
| base::TimeDelta offset = wall_delta - ticks_delta; |
| last_wall_time_ = wall_now; |
| last_ticks_time_ = ticks_now; |
| |
| if (offset < base::TimeDelta::FromSeconds(1)) |
| return false; |
| |
| return true; |
| } |
| |
| } // namespace net |
