Imported Upstream version 2.0.0.11353upstream/2.0.0.11353

18 files changed, 0 insertions, 540 deletions

diff --git a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Close.cs b/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Close.cs
deleted file mode 100644
index 8d192398a0..0000000000
--- a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Close.cs
+++ /dev/null
@@ -1,15 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System;
-using System.Runtime.InteropServices;
-
-internal static partial class Interop
-{
-    internal static partial class Sys
-    {
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_Close", SetLastError = true)]
-        internal static extern int Close(IntPtr fd);
-    }
-}
diff --git a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.FLock.cs b/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.FLock.cs
deleted file mode 100644
index 22934a3e77..0000000000
--- a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.FLock.cs
+++ /dev/null
@@ -1,31 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System;
-using System.Runtime.InteropServices;
-using Microsoft.Win32.SafeHandles;
-
-internal static partial class Interop
-{
-    internal static partial class Sys
-    {
-        internal enum LockOperations : int
-        {
-            LOCK_SH = 1,    /* shared lock */
-            LOCK_EX = 2,    /* exclusive lock */
-            LOCK_NB = 4,    /* don't block when locking*/
-            LOCK_UN = 8,    /* unlock */
-        }
-
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_FLock", SetLastError = true)]
-        internal static extern int FLock(SafeFileHandle fd, LockOperations operation);
-
-        /// <summary>
-        /// Exposing this for SafeFileHandle.ReleaseHandle() to call.
-        /// Normal callers should use FLock(SafeFileHandle fd).
-        /// </summary>
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_FLock", SetLastError = true)]
-        internal static extern int FLock(IntPtr fd, LockOperations operation);
-    }
-}
diff --git a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.FSync.cs b/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.FSync.cs
deleted file mode 100644
index e3ab970931..0000000000
--- a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.FSync.cs
+++ /dev/null
@@ -1,15 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System.Runtime.InteropServices;
-using Microsoft.Win32.SafeHandles;
-
-internal static partial class Interop
-{
-    internal static partial class Sys
-    {
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_FSync", SetLastError = true)]
-        internal static extern int FSync(SafeFileHandle fd);
-    }
-}
diff --git a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.FTruncate.cs b/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.FTruncate.cs
deleted file mode 100644
index 5dad650362..0000000000
--- a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.FTruncate.cs
+++ /dev/null
@@ -1,15 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System.Runtime.InteropServices;
-using Microsoft.Win32.SafeHandles;
-
-internal static partial class Interop
-{
-    internal static partial class Sys
-    {
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_FTruncate", SetLastError = true)]
-        internal static extern int FTruncate(SafeFileHandle fd, long length);
-    }
-}
diff --git a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Fcntl.cs b/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Fcntl.cs
deleted file mode 100644
index 23b48a4f5d..0000000000
--- a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Fcntl.cs
+++ /dev/null
@@ -1,21 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System;
-using System.Runtime.InteropServices;
-
-internal static partial class Interop
-{
-    internal static partial class Sys
-    {
-        internal enum LockType : short
-        {
-            F_WRLCK = 1,    // exclusive or write lock
-            F_UNLCK = 2     // unlock
-        }
-        
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_LockFileRegion", SetLastError=true)]
-        internal static extern int LockFileRegion(SafeHandle fd, long offset, long length, LockType lockType);
-    }
-}
diff --git a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.GetCwd.cs b/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.GetCwd.cs
deleted file mode 100644
index 724e342342..0000000000
--- a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.GetCwd.cs
+++ /dev/null
@@ -1,74 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System;
-using System.Runtime.InteropServices;
-
-internal static partial class Interop
-{
-    internal static partial class Sys
-    {
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_GetCwd", SetLastError = true)]
-        private static unsafe extern byte* GetCwd(byte* buffer, int bufferLength);
-
-        internal static unsafe string GetCwd()
-        {      
-            const int StackLimit = 256;
-       
-            // First try to get the path into a buffer on the stack
-            byte* stackBuf = stackalloc byte[StackLimit];
-            string result = GetCwdHelper(stackBuf, StackLimit);
-            if (result != null)
-            {
-                return result;
-            }
-
-            // If that was too small, try increasing large buffer sizes
-            // until we get one that works or until we hit MaxPath.
-            int maxPath = Interop.Sys.MaxPath;
-            if (StackLimit < maxPath)
-            {
-                int bufferSize = StackLimit;
-                do
-                {
-                    checked { bufferSize *= 2; }
-                    var buf = new byte[Math.Min(bufferSize, maxPath)];
-                    fixed (byte* ptr = buf)
-                    {
-                        result = GetCwdHelper(ptr, buf.Length);
-                        if (result != null)
-                        {
-                            return result;
-                        }
-                    }
-                }
-                while (bufferSize < maxPath);
-            }
-
-            // If we couldn't get the cwd with a MaxPath-sized buffer, something's wrong.
-            throw Interop.GetExceptionForIoErrno(new ErrorInfo(Interop.Error.ENAMETOOLONG));
-        }
-
-        private static unsafe string GetCwdHelper(byte* ptr, int bufferSize)
-        {
-            // Call the real getcwd
-            byte* result = GetCwd(ptr, bufferSize);
-
-            // If it returned non-null, the null-terminated path is in the buffer
-            if (result != null)
-            {
-                return Marshal.PtrToStringAnsi((IntPtr)ptr);
-            }
-
-            // Otherwise, if it failed due to the buffer being too small, return null;
-            // for anything else, throw.
-            ErrorInfo errorInfo = Interop.Sys.GetLastErrorInfo();
-            if (errorInfo.Error == Interop.Error.ERANGE)
-            {
-               return null;
-            }
-            throw Interop.GetExceptionForIoErrno(errorInfo);
-        }
-    }
-}
diff --git a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.GetUnixName.cs b/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.GetUnixName.cs
deleted file mode 100644
index 33664c4d39..0000000000
--- a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.GetUnixName.cs
+++ /dev/null
@@ -1,21 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System;
-using System.Runtime.InteropServices;
-
-internal static partial class Interop
-{
-    internal static partial class Sys
-    {
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_GetUnixName")]
-        private static extern IntPtr GetUnixNamePrivate();
-
-        internal static string GetUnixName()
-        {
-            IntPtr ptr = GetUnixNamePrivate();
-            return Marshal.PtrToStringAnsi(ptr);
-        }
-    }
-}
diff --git a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.LSeek.cs b/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.LSeek.cs
deleted file mode 100644
index 7f8df7c6bf..0000000000
--- a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.LSeek.cs
+++ /dev/null
@@ -1,22 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System.Runtime.InteropServices;
-using Microsoft.Win32.SafeHandles;
-
-internal static partial class Interop
-{
-    internal static partial class Sys
-    {
-        internal enum SeekWhence
-        {
-            SEEK_SET = 0,
-            SEEK_CUR = 1,
-            SEEK_END = 2
-        }
-
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_LSeek", SetLastError = true)]
-        internal static extern long LSeek(SafeFileHandle fd, long offset, SeekWhence whence);
-    }
-}
diff --git a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.MksTemps.cs b/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.MksTemps.cs
deleted file mode 100644
index b8694d9007..0000000000
--- a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.MksTemps.cs
+++ /dev/null
@@ -1,17 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System;
-using System.Runtime.InteropServices;
-
-internal static partial class Interop
-{
-    internal static partial class Sys
-    {
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_MksTemps", SetLastError = true)]
-        internal static extern IntPtr MksTemps(
-            byte[] template, 
-            int suffixlen);
-    }
-}
diff --git a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Open.cs b/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Open.cs
deleted file mode 100644
index a9a994c78c..0000000000
--- a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Open.cs
+++ /dev/null
@@ -1,15 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System.Runtime.InteropServices;
-using Microsoft.Win32.SafeHandles;
-
-internal static partial class Interop
-{
-    internal static partial class Sys
-    {
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_Open", SetLastError = true)]
-        internal static extern SafeFileHandle Open(string filename, OpenFlags flags, int mode);
-    }
-}
diff --git a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.OpenFlags.cs b/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.OpenFlags.cs
deleted file mode 100644
index f9e54c3cbc..0000000000
--- a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.OpenFlags.cs
+++ /dev/null
@@ -1,27 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System;
-
-internal static partial class Interop
-{
-    internal static partial class Sys
-    {
-        [Flags]
-        internal enum OpenFlags
-        {
-            // Access modes (mutually exclusive)
-            O_RDONLY = 0x0000,
-            O_WRONLY = 0x0001,
-            O_RDWR   = 0x0002,
-
-            // Flags (combinable)
-            O_CLOEXEC = 0x0010,
-            O_CREAT   = 0x0020,
-            O_EXCL    = 0x0040,
-            O_TRUNC   = 0x0080,
-            O_SYNC    = 0x0100,
-        }
-    }
-}
diff --git a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.PathConf.cs b/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.PathConf.cs
deleted file mode 100644
index 4a1fcf67d0..0000000000
--- a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.PathConf.cs
+++ /dev/null
@@ -1,73 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System;
-using System.Runtime.InteropServices;
-
-internal static partial class Interop
-{
-    internal static partial class Sys
-    {
-        internal static int DEFAULT_PC_NAME_MAX = 255;
-
-        internal enum PathConfName : int
-        {
-            PC_LINK_MAX         = 1,
-            PC_MAX_CANON        = 2,
-            PC_MAX_INPUT        = 3,
-            PC_NAME_MAX         = 4,
-            PC_PATH_MAX         = 5,
-            PC_PIPE_BUF         = 6,
-            PC_CHOWN_RESTRICTED = 7,
-            PC_NO_TRUNC         = 8,
-            PC_VDISABLE         = 9,
-        }
-
-        /// <summary>The maximum path length for the system.  -1 if it hasn't yet been initialized.</summary>
-        private static int s_maxPath = -1;
-
-        /// <summary>The maximum name length for the system.  -1 if it hasn't yet been initialized.</summary>
-        private static int s_maxName = -1;
-
-        internal static int MaxPath
-        {
-            get
-            {
-                // Benign race condition on cached value
-                if (s_maxPath < 0) 
-                {
-                    // GetMaximumPath returns a long from PathConf
-                    // but our callers expect an int so we need to convert.
-                    long temp = GetMaximumPath();
-                    if (temp > int.MaxValue)
-                        s_maxPath = int.MaxValue;
-                    else
-                        s_maxPath = Convert.ToInt32(temp);
-                }
-                return s_maxPath; 
-            }
-        }
-
-        internal static int MaxName
-        {
-            get
-            {
-                // Benign race condition on cached value
-                if (s_maxName < 0)
-                {
-                    int result = PathConf("/", PathConfName.PC_NAME_MAX);
-                    s_maxName = result >= 0 ? result : DEFAULT_PC_NAME_MAX;
-                }
-                
-                return s_maxName;
-            }
-        }
-
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_PathConf", SetLastError = true)]
-        private static extern int PathConf(string path, PathConfName name);
-
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_GetMaximumPath")]
-        private static extern long GetMaximumPath();
-    }
-}
diff --git a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Permissions.cs b/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Permissions.cs
deleted file mode 100644
index f1d13787d2..0000000000
--- a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Permissions.cs
+++ /dev/null
@@ -1,32 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System;
-
-internal static partial class Interop
-{
-    internal static partial class Sys
-    {
-        [Flags]
-        internal enum Permissions
-        {
-            Mask = S_IRWXU | S_IRWXG | S_IRWXO,
-
-            S_IRWXU = S_IRUSR | S_IWUSR | S_IXUSR,
-            S_IRUSR = 0x100,
-            S_IWUSR = 0x80,
-            S_IXUSR = 0x40,
-
-            S_IRWXG = S_IRGRP | S_IWGRP | S_IXGRP,
-            S_IRGRP = 0x20,
-            S_IWGRP = 0x10,
-            S_IXGRP = 0x8,
-
-            S_IRWXO = S_IROTH | S_IWOTH | S_IXOTH,
-            S_IROTH = 0x4,
-            S_IWOTH = 0x2,
-            S_IXOTH = 0x1,
-        }
-    }
-}
diff --git a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.PosixFAdvise.cs b/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.PosixFAdvise.cs
deleted file mode 100644
index 69e39b30d2..0000000000
--- a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.PosixFAdvise.cs
+++ /dev/null
@@ -1,36 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System.Runtime.InteropServices;
-using Microsoft.Win32.SafeHandles;
-
-internal static partial class Interop
-{
-    internal static partial class Sys
-    {
-        internal enum FileAdvice : int
-        {
-            POSIX_FADV_NORMAL       = 0,    /* no special advice, the default value */
-            POSIX_FADV_RANDOM       = 1,    /* random I/O access */
-            POSIX_FADV_SEQUENTIAL   = 2,    /* sequential I/O access */
-            POSIX_FADV_WILLNEED     = 3,    /* will need specified pages */
-            POSIX_FADV_DONTNEED     = 4,    /* don't need the specified pages */
-            POSIX_FADV_NOREUSE      = 5,    /* data will only be acessed once */
-        }
-
-        /// <summary>
-        /// Notifies the OS kernel that the specified file will be accessed in a particular way soon; this allows the kernel to
-        /// potentially optimize the access pattern of the file.
-        /// </summary>
-        /// <param name="fd">The file descriptor of the file</param>
-        /// <param name="offset">The start of the region to advise about</param>
-        /// <param name="length">The number of bytes of the region (until the end of the file if 0)</param>
-        /// <param name="advice">The type of advice to give the kernel about the specified region</param>
-        /// <returns>
-        /// Returns 0 on success; otherwise, the error code is returned
-        /// </returns>
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_PosixFAdvise", SetLastError = false /* this is explicitly called out in the man page */)]
-        internal static extern int PosixFAdvise(SafeFileHandle fd, long offset, long length, FileAdvice advice);
-    }
-}
diff --git a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Read.cs b/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Read.cs
deleted file mode 100644
index 812ae348dc..0000000000
--- a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Read.cs
+++ /dev/null
@@ -1,25 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System.Runtime.InteropServices;
-using Microsoft.Win32.SafeHandles;
-
-internal static partial class Interop
-{
-    internal static partial class Sys
-    {
-        /// <summary>
-        /// Reads a number of bytes from an open file descriptor into a specified buffer.
-        /// </summary>
-        /// <param name="fd">The open file descriptor to try to read from</param>
-        /// <param name="buffer">The buffer to read info into</param>
-        /// <param name="count">The size of the buffer</param>
-        /// <returns>
-        /// Returns the number of bytes read on success; otherwise, -1 is returned
-        /// Note - on fail. the position of the stream may change depending on the platform; consult man 2 read for more info
-        /// </returns>
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_Read", SetLastError = true)]
-        internal static unsafe extern int Read(SafeFileHandle fd, byte* buffer, int count);
-    }
-}
diff --git a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Stat.cs b/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Stat.cs
deleted file mode 100644
index a8bc2ec7d1..0000000000
--- a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Stat.cs
+++ /dev/null
@@ -1,59 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System;
-using System.Runtime.InteropServices;
-using Microsoft.Win32.SafeHandles;
-
-internal static partial class Interop
-{
-    internal static partial class Sys
-    {
-        // Even though csc will by default use a sequential layout, a CS0649 warning as error
-        // is produced for un-assigned fields when no StructLayout is specified.
-        //
-        // Explicitly saying Sequential disables that warning/error for consumers which only
-        // use Stat in debug builds.
-        [StructLayout(LayoutKind.Sequential)]
-        internal struct FileStatus
-        {
-            internal FileStatusFlags Flags;
-            internal int Mode;
-            internal uint Uid;
-            internal uint Gid;
-            internal long Size;
-            internal long ATime;
-            internal long MTime;
-            internal long CTime;
-            internal long BirthTime;
-        }
-
-        internal static class FileTypes
-        {
-            internal const int S_IFMT = 0xF000;
-            internal const int S_IFIFO = 0x1000;
-            internal const int S_IFCHR = 0x2000;
-            internal const int S_IFDIR = 0x4000;
-            internal const int S_IFREG = 0x8000;
-            internal const int S_IFLNK = 0xA000;
-            internal const int S_IFSOCK = 0xC000;
-        }
-
-        [Flags]
-        internal enum FileStatusFlags
-        {
-            None = 0,
-            HasBirthTime = 1,
-        }
-
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_FStat", SetLastError = true)]
-        internal static extern int FStat(SafeFileHandle fd, out FileStatus output);
-
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_Stat", SetLastError = true)]
-        internal static extern int Stat(string path, out FileStatus output);
-
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_LStat", SetLastError = true)]
-        internal static extern int LStat(string path, out FileStatus output);
-    }
-}
diff --git a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Unlink.cs b/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Unlink.cs
deleted file mode 100644
index 829210fa7e..0000000000
--- a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Unlink.cs
+++ /dev/null
@@ -1,15 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System;
-using System.Runtime.InteropServices;
-
-internal static partial class Interop
-{
-    internal static partial class Sys
-    {
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_Unlink", SetLastError = true)]
-        internal static extern int Unlink(string pathname);
-    }
-}
diff --git a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Write.cs b/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Write.cs
deleted file mode 100644
index c14fc26263..0000000000
--- a/src/mscorlib/corefx/Interop/Unix/System.Native/Interop.Write.cs
+++ /dev/null
@@ -1,27 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System.Runtime.InteropServices;
-using Microsoft.Win32.SafeHandles;
-
-internal static partial class Interop
-{
-    internal static partial class Sys
-    {
-        /// <summary>
-        /// Writes the specified buffer to the provided open file descriptor
-        /// </summary>
-        /// <param name="fd">The file descriptor to try and write to</param>
-        /// <param name="buffer">The data to attempt to write</param>
-        /// <param name="bufferSize">The amount of data to write, in bytes</param>
-        /// <returns>
-        /// Returns the number of bytes written on success; otherwise, returns -1 and sets errno
-        /// </returns>
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_Write", SetLastError = true)]
-        internal static unsafe extern int Write(SafeFileHandle fd, byte* buffer, int bufferSize);
-
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_Write", SetLastError = true)]
-        internal static unsafe extern int Write(int fd, byte* buffer, int bufferSize);
-    }
-}