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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#include "Uptime.h"
#include "mozilla/Now.h"
using namespace mozilla;
namespace {
static Maybe<uint64_t> mStartExcludingSuspendMs;
static Maybe<uint64_t> mStartIncludingSuspendMs;
}; // anonymous namespace
namespace mozilla {
void InitializeUptime() {
MOZ_RELEASE_ASSERT(mStartIncludingSuspendMs.isNothing() &&
mStartExcludingSuspendMs.isNothing(),
"Must not be called more than once");
mStartIncludingSuspendMs = NowIncludingSuspendMs();
mStartExcludingSuspendMs = NowExcludingSuspendMs();
}
Maybe<uint64_t> ProcessUptimeMs() {
if (!mStartIncludingSuspendMs) {
return Nothing();
}
Maybe<uint64_t> maybeNow = NowIncludingSuspendMs();
if (!maybeNow) {
return Nothing();
}
return Some(maybeNow.value() - mStartIncludingSuspendMs.value());
}
Maybe<uint64_t> ProcessUptimeExcludingSuspendMs() {
if (!mStartExcludingSuspendMs) {
return Nothing();
}
Maybe<uint64_t> maybeNow = NowExcludingSuspendMs();
if (!maybeNow) {
return Nothing();
}
return Some(maybeNow.value() - mStartExcludingSuspendMs.value());
}
}; // namespace mozilla