bin/projects/dbatools/dbatools/Maintenance/MaintenanceTask.cs
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using System; using System.Collections.Generic; using System.Linq; using System.Management.Automation; using System.Text; using System.Threading.Tasks; namespace Sqlcollaborative.Dbatools.Maintenance { /// <summary> /// An individual task assigned to the maintenance engine /// </summary> public class MaintenanceTask { /// <summary> /// The name of the task to execute. No duplciates are possible. /// </summary> public string Name; /// <summary> /// Whether the task should be done once only /// </summary> public bool Once; /// <summary> /// The interval at which the task should be performed /// </summary> public TimeSpan Interval = new TimeSpan(0); /// <summary> /// If the task need not be performed right away, it can be delayed, in order to prioritize more important initialization tasks /// </summary> public TimeSpan Delay = new TimeSpan(0); /// <summary> /// When was the task first registered. Duplicate registration calls will not increment this value. /// </summary> public DateTime Registered; /// <summary> /// When was the task last executed. /// </summary> public DateTime LastExecution; /// <summary> /// How important is this task? /// </summary> public MaintenancePriority Priority; /// <summary> /// The task code to execute /// </summary> public ScriptBlock ScriptBlock; /// <summary> /// Whether the task is due and should be executed /// </summary> public bool IsDue { get { if (Once && (LastExecution > Registered)) return false; if ((Delay.Ticks > 0) && ((Registered.Add(Delay)) > DateTime.Now)) return false; if ((LastExecution.Add(Interval)) > DateTime.Now) return false; return true; } } } } |