////////////////////////////////////////////////////////////////////////////////
//
//  Microsoft Research Singularity - Singularity ABI
//
//  Copyright (c) Microsoft Corporation.  All rights reserved.
//
//  File: StackService.csi
//
//  Note:
//

using System.Runtime.CompilerServices;

namespace Microsoft.Singularity.V1.Services
{
    public struct StackService
    {
        private readonly int id;

        [NoHeapAllocation]
        public static void GetUnlinkStackRange(out ulong unlinkBegin, out ulong unlinkLimit);
        [NoHeapAllocation]
        public static void WalkStack();
        [NoHeapAllocation]
        public static void GetUsageStatistics(out ulong gets, out ulong returns);

        [NoHeapAllocation]
        public static void LinkStack0();
        [NoHeapAllocation]
        public static void LinkStack4();
        [NoHeapAllocation]
        public static void LinkStack8();
        [NoHeapAllocation]
        public static void LinkStack12();
        [NoHeapAllocation]
        public static void LinkStack16();
        [NoHeapAllocation]
        public static void LinkStack20();
        [NoHeapAllocation]
        public static void LinkStack24();
        [NoHeapAllocation]
        public static void LinkStack28();
        [NoHeapAllocation]
        public static void LinkStack32();
        [NoHeapAllocation]
        public static void LinkStack36();
        [NoHeapAllocation]
        public static void LinkStack40();
        [NoHeapAllocation]
        public static void LinkStack44();
        [NoHeapAllocation]
        public static void LinkStack48();
        [NoHeapAllocation]
        public static void LinkStack52();
        [NoHeapAllocation]
        public static void LinkStack56();
        [NoHeapAllocation]
        public static void LinkStack60();
        [NoHeapAllocation]
        public static void LinkStack64();

#if PAGING
        // For use from the ring-3 code in halstack.asm
        [NoHeapAllocation]
        public static unsafe UIntPtr GetStackSegmentAndCopy(
            UIntPtr size,
            ref ThreadContext context,
            uint *arg2,
            uint args,
            UIntPtr esp,
            UIntPtr begin,
            UIntPtr limit);

        // For use from the ring-3 code in halstack.asm
        [NoHeapAllocation]
        public static unsafe void ReturnStackSegmentRaw(
            ref ThreadContext context,
            UIntPtr begin,
            UIntPtr limit);
#endif
    }
}