108 lines
3.9 KiB
C#
108 lines
3.9 KiB
C#
// Copyright (C) 2017, The Duplicati Team
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// http://www.duplicati.com, info@duplicati.com
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//
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 2.1 of the
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// License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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using System;
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using System.IO;
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using System.Linq;
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namespace Duplicati.Library.Utility.Power
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{
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public class LinuxPowerSupplyState : IPowerSupplyState
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{
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private readonly string sysfsPath = Path.Combine("/", "sys", "class", "power_supply");
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public PowerSupply.Source GetSource()
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{
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if (this.IsAC())
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{
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return PowerSupply.Source.AC;
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}
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if (this.IsBattery())
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{
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return PowerSupply.Source.Battery;
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}
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return PowerSupply.Source.Unknown;
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}
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private bool IsAC()
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{
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// If any of the power supply devices of type "Mains" are online, then we are on
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// AC power. If none of the power supply devices are of type "Mains", then we
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// are also on AC power. See https://bugzilla.redhat.com/show_bug.cgi?id=644629.
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bool reply = false;
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bool haveMains = false;
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try
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{
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foreach (string source in Directory.GetDirectories(this.sysfsPath))
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{
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if (!reply)
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{
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string sourceType = File.ReadLines(Path.Combine(source, "type")).FirstOrDefault();
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if (String.Equals(sourceType, "Mains", StringComparison.Ordinal))
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{
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haveMains = true;
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string isOnline = File.ReadLines(Path.Combine(source, "online")).FirstOrDefault();
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reply = String.Equals(isOnline, "1", StringComparison.Ordinal);
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}
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}
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}
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}
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catch
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{
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return false;
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}
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return reply |= !haveMains;
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}
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private bool IsBattery()
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{
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// If there is at least one power supply device of type "Mains", and all "Mains"
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// devices are offline, then we are on battery power.
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bool allOffline = true;
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bool haveMains = false;
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try
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{
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foreach (string source in Directory.GetDirectories(this.sysfsPath))
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{
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if (allOffline)
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{
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string sourceType = File.ReadLines(Path.Combine(source, "type")).FirstOrDefault();
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if (String.Equals(sourceType, "Mains", StringComparison.Ordinal))
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{
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haveMains = true;
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string isOnline = File.ReadLines(Path.Combine(source, "online")).FirstOrDefault();
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allOffline &= String.Equals(isOnline, "0", StringComparison.Ordinal);
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}
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}
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}
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}
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catch
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{
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return false;
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}
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return haveMains && allOffline;
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}
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}
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}
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