48 lines
1.3 KiB
C#
48 lines
1.3 KiB
C#
// Copyright (c) .NET Foundation. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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using System;
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using System.Security.Authentication.ExtendedProtection;
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namespace Microsoft.AspNetCore.HttpSys.Internal
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{
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internal class SafeLocalFreeChannelBinding : ChannelBinding
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{
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private const int LMEM_FIXED = 0;
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private int size;
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public override int Size
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{
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get { return size; }
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}
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public static SafeLocalFreeChannelBinding LocalAlloc(int cb)
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{
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SafeLocalFreeChannelBinding result;
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result = UnsafeNclNativeMethods.SafeNetHandles.LocalAllocChannelBinding(LMEM_FIXED, (UIntPtr)cb);
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if (result.IsInvalid)
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{
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result.SetHandleAsInvalid();
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throw new OutOfMemoryException();
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}
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result.size = cb;
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return result;
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}
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protected override bool ReleaseHandle()
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{
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return UnsafeNclNativeMethods.SafeNetHandles.LocalFree(handle) == IntPtr.Zero;
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}
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public override bool IsInvalid
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{
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get
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{
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return handle == IntPtr.Zero || handle.ToInt32() == -1;
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}
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}
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}
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}
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