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ash / system / time / time_view_utils.cc [blame]
// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/system/time/time_view_utils.h"
#include "base/time/time.h"
namespace ash::time_view_utils {
namespace {
// Amount of slop to add into the timer to make sure we're into the next minute
// when the timer goes off.
const int kTimerSlopSeconds = 1;
} // namespace
base::TimeDelta GetTimeRemainingToNextMinute(const base::Time& time) {
// Try to set the timer to go off at the next change of the minute. We don't
// want to have the timer go off more than necessary since that will cause
// the CPU to wake up and consume power.
base::Time::Exploded exploded;
time.LocalExplode(&exploded);
// Often this will be called at minute boundaries, and we'll actually want
// 60 seconds from now.
int seconds_left = 60 - exploded.second;
if (seconds_left == 0) {
seconds_left = 60;
}
// Make sure that the timer fires on the next minute. Without this, if it is
// called just a teeny bit early, then it will skip the next minute.
seconds_left += kTimerSlopSeconds;
return base::Seconds(seconds_left);
}
} // namespace ash::time_view_utils