46 lines
1.6 KiB
C#
46 lines
1.6 KiB
C#
// Licensed to the .NET Foundation under one or more agreements.
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// The .NET Foundation licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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using System;
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using System.Runtime.InteropServices;
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internal static partial class Interop
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{
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internal static partial class Sys
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{
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[DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_OpenDir", SetLastError = true)]
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internal static extern IntPtr OpenDir_native(string path);
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[DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_ReadDirR", SetLastError = false)]
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internal static extern unsafe int ReadDirR_native(IntPtr dir, byte* buffer, int bufferSize, out DirectoryEntry outputEntry);
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[DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_CloseDir", SetLastError = true)]
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internal static extern int CloseDir_native(IntPtr dir);
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internal static IntPtr OpenDir (string path) {
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IntPtr result;
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do {
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result = OpenDir_native (path);
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} while (result == IntPtr.Zero && Marshal.GetLastWin32Error () == (int) Interop.Error.EINTR);
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return result;
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}
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internal static int CloseDir (IntPtr dir) {
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int result;
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do {
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result = CloseDir_native (dir);
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} while (result < 0 && Marshal.GetLastWin32Error () == (int) Interop.Error.EINTR);
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return result;
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}
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internal static unsafe int ReadDirR (IntPtr dir, byte* buffer, int bufferSize, out DirectoryEntry outputEntry) {
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int result;
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do {
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result = ReadDirR_native (dir, buffer, bufferSize, out outputEntry);
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} while (result == (int) Interop.Error.EINTR);
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return result;
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}
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}
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}
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