60 lines
1.9 KiB
C#
60 lines
1.9 KiB
C#
// Copyright (c) Microsoft Open Technologies, Inc.
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// All Rights Reserved
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR
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// CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING
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// WITHOUT LIMITATION ANY IMPLIED WARRANTIES OR CONDITIONS OF
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// TITLE, FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABLITY OR
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// NON-INFRINGEMENT.
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// See the Apache 2 License for the specific language governing
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// permissions and limitations under the License.
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// -----------------------------------------------------------------------
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// <copyright file="SafeLoadLibrary.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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// -----------------------------------------------------------------------
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using Microsoft.Win32.SafeHandles;
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namespace Microsoft.Net.Http.Server
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{
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internal sealed class SafeLoadLibrary : SafeHandleZeroOrMinusOneIsInvalid
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{
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private const string KERNEL32 = "kernel32.dll";
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public static readonly SafeLoadLibrary Zero = new SafeLoadLibrary(false);
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private SafeLoadLibrary()
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: base(true)
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{
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}
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private SafeLoadLibrary(bool ownsHandle)
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: base(ownsHandle)
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{
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}
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public static unsafe SafeLoadLibrary LoadLibraryEx(string library)
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{
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SafeLoadLibrary result = UnsafeNclNativeMethods.SafeNetHandles.LoadLibraryExW(library, null, 0);
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if (result.IsInvalid)
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{
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result.SetHandleAsInvalid();
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}
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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.FreeLibrary(handle);
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}
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}
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}
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