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// --------------------------------------------------------------------------------------------------------------------
// <copyright file="SystemService.cs" company="HandBrake Project (http://handbrake.fr)">
// This file is part of the HandBrake source code - It may be used under the terms of the GNU General Public License.
// </copyright>
// <summary>
// Monitor the system health for common problems that will directly impact encodes.
// </summary>
// --------------------------------------------------------------------------------------------------------------------
namespace HandBrakeWPF.Services
{
using System;
using System.Timers;
using HandBrakeWPF.Properties;
using HandBrakeWPF.Services.Encode.Interfaces;
using HandBrakeWPF.Services.Interfaces;
using HandBrakeWPF.Services.Logging.Interfaces;
using HandBrakeWPF.Utilities;
public class SystemService : ISystemService
{
private readonly IUserSettingService userSettingService;
private readonly IEncode encodeService;
private readonly ILog log = null;
private Timer pollTimer;
private bool criticalStateHit = false;
private bool lowStateHit = false;
private bool lowPowerPause = false;
private bool storageLowPause = false;
public SystemService(IUserSettingService userSettingService, IEncode encodeService, ILog logService)
{
this.log = logService;
this.userSettingService = userSettingService;
this.encodeService = encodeService;
}
public void Start()
{
if (this.pollTimer == null)
{
this.pollTimer = new Timer();
this.pollTimer.Interval = 10000; // Check every 10 seconds.
this.pollTimer.Elapsed += (o, e) =>
{
this.CheckSystem();
};
this.pollTimer.Start();
}
}
private void CheckSystem()
{
this.PowerCheck();
this.StorageCheck();
}
private void StorageCheck()
{
string directory = this.encodeService.GetActiveJob()?.Destination;
if (!string.IsNullOrEmpty(directory) && this.encodeService.IsEncoding)
{
long lowLevel = this.userSettingService.GetUserSetting<long>(UserSettingConstants.PauseEncodeOnLowDiskspaceLevel);
if (!this.storageLowPause && this.userSettingService.GetUserSetting<bool>(UserSettingConstants.PauseOnLowDiskspace) && !DriveUtilities.HasMinimumDiskSpace(directory, lowLevel))
{
this.log.LogMessage(
string.Format(
Resources.SystemService_LowDiskSpaceLog,
lowLevel / 1000 / 1000 / 1000));
this.encodeService.Pause();
this.storageLowPause = true;
}
}
}
private void PowerCheck()
{
Win32.PowerState state = Win32.PowerState.GetPowerState();
if (state == null || state.BatteryFlag == Win32.BatteryFlag.NoSystemBattery || state.BatteryFlag == Win32.BatteryFlag.Unknown)
{
return; // Only run if we have a battery.
}
if (state.ACLineStatus == Win32.ACLineStatus.Offline && state.BatteryFlag == Win32.BatteryFlag.Low && !this.lowStateHit)
{
if (this.encodeService.IsEncoding && !this.encodeService.IsPasued)
{
this.lowPowerPause = true;
this.encodeService.Pause();
}
Win32.AllowSleep();
this.ServiceLogMessage(string.Format(Resources.SystemService_LowBatteryLog, state.BatteryLifePercent));
this.lowStateHit = true;
}
if (state.ACLineStatus == Win32.ACLineStatus.Offline && state.BatteryFlag == Win32.BatteryFlag.Critical && !this.criticalStateHit)
{
if (this.encodeService.IsEncoding && !this.encodeService.IsPasued)
{
this.lowPowerPause = true;
this.encodeService.Pause(); // In case we missed the low state!
}
Win32.AllowSleep();
this.ServiceLogMessage(string.Format(Resources.SystemService_CriticalBattery, state.BatteryLifePercent));
this.criticalStateHit = true;
}
// Reset the flags when we start charging.
if (state.ACLineStatus == Win32.ACLineStatus.Online && state.BatteryFlag >= Win32.BatteryFlag.Low)
{
if (this.lowPowerPause && this.encodeService.IsPasued)
{
this.encodeService.Resume();
this.ServiceLogMessage(string.Format(Resources.SystemService_ACMains, state.BatteryLifePercent));
}
this.lowPowerPause = false;
this.criticalStateHit = false;
this.lowStateHit = false;
}
}
private void ServiceLogMessage(string message)
{
this.log.LogMessage(string.Format("{0}# {1}{0}", Environment.NewLine, message));
}
}
}
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