53 lines
2.2 KiB
C#
53 lines
2.2 KiB
C#
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////////////////////////////////////////////////////////////////////////////////
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//
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// Microsoft Research Singularity
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// File: Kernel\Singularity\Scheduling\ICpuScheduler.cs
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//
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// Note:
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//
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using System;
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using System.Collections;
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using System.Threading;
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#if SIMULATOR
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using Thread = Microsoft.Singularity.Scheduling.Thread;
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#endif
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namespace Microsoft.Singularity.Scheduling
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{
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[CLSCompliant(false)]
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public abstract class ICpuScheduler
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{
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public abstract ISchedulerThread CreateSchedulerThread(Thread thread);
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public abstract ISchedulerProcessor CreateSchedulerProcessor(Processor processor);
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public abstract ISchedulerActivity CreateSchedulerActivity();
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public abstract ISchedulerCpuReservation ReserveCpu(ISchedulerActivity activity,
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CpuResourceAmount amount,
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TimeSpan period);
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public abstract bool NextThread(out Thread nextThread);
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public abstract bool ShouldReschedule();
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/// <summary>
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/// Note that as tasks now contain resource accounting, there is
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/// no need to pass out the resource usage from the scheduler.
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/// For consistency we'll still pass it out of the Task API at least
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/// until instantaneous usage is fixed.
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/// </summary>
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/// <returns>Returns true if admitted.</returns>
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public abstract bool BeginConstraint(Hashtable resourceEstimates,
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DateTime deadline,
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ISchedulerTask taskToEnd,
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out ISchedulerTask schedulerTask);
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public abstract void BeginDelayedConstraint(Hashtable resourceEstimates,
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TimeSpan relativeDeadline,
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ISchedulerTask taskToEnd,
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out ISchedulerTask schedulerTask);
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public abstract bool EndConstraint(ISchedulerTask taskToEnd);
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public abstract void Initialize();
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}
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}
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