50 lines
1.8 KiB
C#
50 lines
1.8 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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// ThreadRecord defines the low-level per-thread state maintained by the Isal layer
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using System;
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using System.Runtime.InteropServices;
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using System.Runtime.CompilerServices;
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#if ISA_IX
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using Microsoft.Singularity.Isal.IX;
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#endif
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namespace Microsoft.Singularity.Isal
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{
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[NoCCtor]
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[AccessedByRuntime("referenced in c++")]
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[CLSCompliant(false)]
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[System.Runtime.InteropServices.StructLayout(LayoutKind.Sequential, Pack=4)]
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[StructAlign(16)]
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public struct ThreadRecord
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{
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// Spill context to use with this thread's execution is preempted
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// Note this must be 16-byte aligned
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[AccessedByRuntime("referenced in c++")]
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public SpillContext spill;
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// The current stack limit for bounds checks - this is kept current with
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// thread context switches.
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//
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// While this is really logically associated with the Cpu rather than
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// the thread, it is kept in the ThreadRecord since accesses into the Cpu
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// record would be non-atomic (in the case where a thread is interrupted and
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// migrates across processors).
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//
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// There are several cases where the activeStackLimit will differ from the
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// stackLimit:
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// - when we switch to the interrupt stack
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// - after we call SetCurrentThreadRecord, but before we do a context
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// restore on that thread's context.
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[AccessedByRuntime("referenced in c++")]
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public UIntPtr activeStackLimit;
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}
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}
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