forked from mirrors/gecko-dev
61 lines
1.6 KiB
C++
61 lines
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_MemoryPressureLevelMac_h
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#define mozilla_MemoryPressureLevelMac_h
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namespace mozilla {
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#if defined(XP_MACOSX)
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// An internal representation of the Mac memory-pressure level constants.
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class MacMemoryPressureLevel {
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public:
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enum class Value {
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eUnset,
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eUnexpected,
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eNormal,
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eWarning,
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eCritical,
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};
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MacMemoryPressureLevel() : mValue(Value::eUnset) {}
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MOZ_IMPLICIT MacMemoryPressureLevel(Value aValue) : mValue(aValue) {}
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bool operator==(const Value& aRhsValue) { return mValue == aRhsValue; }
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bool operator==(const MacMemoryPressureLevel& aRhs) {
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return mValue == aRhs.mValue;
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}
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Value GetValue() { return mValue; }
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bool IsNormal() { return mValue == Value::eNormal; }
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bool IsUnsetOrNormal() { return IsNormal() || (mValue == Value::eUnset); }
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bool IsWarningOrAbove() {
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return (mValue == Value::eWarning) || (mValue == Value::eCritical);
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}
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const char* ToString() {
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switch (mValue) {
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case Value::eUnset:
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return "Unset";
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case Value::eUnexpected:
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return "Unexpected";
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case Value::eNormal:
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return "Normal";
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case Value::eWarning:
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return "Warning";
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case Value::eCritical:
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return "Critical";
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}
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}
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private:
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Value mValue;
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};
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#endif
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} // namespace mozilla
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#endif // mozilla_MemoryPressureLevelMac_h
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