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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_TEST_CHROMEDRIVER_NET_TIMEOUT_H_
#define CHROME_TEST_CHROMEDRIVER_NET_TIMEOUT_H_
#include "base/time/time.h"
// A helper for tracking the time spent executing a task. Creating a new
// instance marks the beginning of the task. Task duration limit may be set
// in the contructor or at any time later, but only once.
class Timeout {
public:
Timeout();
explicit Timeout(const base::TimeDelta& duration);
// To be used when executing a sub-task with its own timeout, keeping track
// of the parent task timeout at the same time. Creates a new Timeout whose
// deadline is either Now() + |duration| or deadline of |outer|, whichever is
// smaller. |outer| may be nullptr. Note: setting duration on |outer| won't
// affect sub-timeouts that were created earlier!
Timeout(const base::TimeDelta& duration, const Timeout* outer);
// Sets the deadline by adding |duration| to the start time recored at
// contruction. Should not be called if the deadline is already set, unless
// the duration is exactly the same.
void SetDuration(const base::TimeDelta& duration);
bool is_set() const { return !deadline_.is_null(); }
// Whether the remaining time delta is less than or equal to zero.
bool IsExpired() const;
// Returns the duration if set, otherwise returns TimeDelta::Max().
base::TimeDelta GetDuration() const;
// Returns the remaining time if duration is set, otherwise returns
// TimeDelta::Max().
base::TimeDelta GetRemainingTime() const;
private:
base::TimeTicks start_;
base::TimeTicks deadline_;
};
#endif // CHROME_TEST_CHROMEDRIVER_NET_TIMEOUT_H_
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