third_party/WebKit/Source/platform/wtf/CurrentTime.cpp

/*
 * Copyright (C) 2009 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 *
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 * notice, this list of conditions and the following disclaimer.
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 * in the documentation and/or other materials provided with the
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 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#include "platform/wtf/CurrentTime.h"

#include "base/time/time.h"

namespace WTF {

static TimeFunction g_mock_time_function_for_testing = nullptr;

double CurrentTime() {
  if (g_mock_time_function_for_testing)
    return g_mock_time_function_for_testing();
  return base::Time::Now().ToDoubleT();
}

double MonotonicallyIncreasingTime() {
  if (g_mock_time_function_for_testing)
    return g_mock_time_function_for_testing();
  return base::TimeTicks::Now().ToInternalValue() /
         static_cast<double>(base::Time::kMicrosecondsPerSecond);
}

TimeFunction SetTimeFunctionsForTesting(TimeFunction new_function) {
  TimeFunction old_function = g_mock_time_function_for_testing;
  g_mock_time_function_for_testing = new_function;
  return old_function;
}

TimeFunction GetTimeFunctionForTesting() {
  return g_mock_time_function_for_testing;
}

}  // namespace WTF