1 files changed, 69 insertions, 0 deletions
diff --git a/src/mscorlib/shared/Interop/Unix/System.Globalization.Native/Interop.Collation.cs b/src/mscorlib/shared/Interop/Unix/System.Globalization.Native/Interop.Collation.cs
new file mode 100644
index 0000000000..79aedd74d3
--- /dev/null
+++ b/src/mscorlib/shared/Interop/Unix/System.Globalization.Native/Interop.Collation.cs
@@ -0,0 +1,69 @@
+// 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.Globalization;
+using System.Runtime.InteropServices;
+using System.Security;
+
+internal static partial class Interop
+{
+    internal static partial class GlobalizationInterop
+    {
+        [DllImport(Libraries.GlobalizationInterop, CharSet = CharSet.Unicode, EntryPoint = "GlobalizationNative_GetSortHandle")]
+        internal unsafe static extern ResultCode GetSortHandle(byte[] localeName, out SafeSortHandle sortHandle);
+
+        [DllImport(Libraries.GlobalizationInterop, CharSet = CharSet.Unicode, EntryPoint = "GlobalizationNative_CloseSortHandle")]
+        internal unsafe static extern void CloseSortHandle(IntPtr handle);
+
+        [DllImport(Libraries.GlobalizationInterop, CharSet = CharSet.Unicode, EntryPoint = "GlobalizationNative_CompareString")]
+        internal unsafe static extern int CompareString(SafeSortHandle sortHandle, char* lpStr1, int cwStr1Len, char* lpStr2, int cwStr2Len, CompareOptions options);
+
+        [DllImport(Libraries.GlobalizationInterop, CharSet = CharSet.Unicode, EntryPoint = "GlobalizationNative_IndexOf")]
+        internal unsafe static extern int IndexOf(SafeSortHandle sortHandle, string target, int cwTargetLength, char* pSource, int cwSourceLength, CompareOptions options, int* matchLengthPtr);
+
+        [DllImport(Libraries.GlobalizationInterop, CharSet = CharSet.Unicode, EntryPoint = "GlobalizationNative_LastIndexOf")]
+        internal unsafe static extern int LastIndexOf(SafeSortHandle sortHandle, string target, int cwTargetLength, char* pSource, int cwSourceLength, CompareOptions options);
+
+        [DllImport(Libraries.GlobalizationInterop, CharSet = CharSet.Unicode, EntryPoint = "GlobalizationNative_IndexOfOrdinalIgnoreCase")]
+        internal unsafe static extern int IndexOfOrdinalIgnoreCase(string target, int cwTargetLength, char* pSource, int cwSourceLength, bool findLast);
+
+        [DllImport(Libraries.GlobalizationInterop, CharSet = CharSet.Unicode, EntryPoint = "GlobalizationNative_StartsWith")]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        internal unsafe static extern bool StartsWith(SafeSortHandle sortHandle, string target, int cwTargetLength, string source, int cwSourceLength, CompareOptions options);
+
+        [DllImport(Libraries.GlobalizationInterop, CharSet = CharSet.Unicode, EntryPoint = "GlobalizationNative_EndsWith")]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        internal unsafe static extern bool EndsWith(SafeSortHandle sortHandle, string target, int cwTargetLength, string source, int cwSourceLength, CompareOptions options);
+
+        [DllImport(Libraries.GlobalizationInterop, CharSet = CharSet.Unicode, EntryPoint = "GlobalizationNative_GetSortKey")]
+        internal unsafe static extern int GetSortKey(SafeSortHandle sortHandle, string str, int strLength, byte* sortKey, int sortKeyLength, CompareOptions options);
+
+        [DllImport(Libraries.GlobalizationInterop, CharSet = CharSet.Unicode, EntryPoint = "GlobalizationNative_CompareStringOrdinalIgnoreCase")]
+        internal unsafe static extern int CompareStringOrdinalIgnoreCase(char* lpStr1, int cwStr1Len, char* lpStr2, int cwStr2Len);
+
+        [DllImport(Libraries.GlobalizationInterop, EntryPoint = "GlobalizationNative_GetSortVersion")]
+        internal static extern int GetSortVersion();
+
+        internal class SafeSortHandle : SafeHandle
+        {
+            private SafeSortHandle() :
+                base(IntPtr.Zero, true)
+            {
+            }
+
+            public override bool IsInvalid
+            {
+                get { return handle == IntPtr.Zero; }
+            }
+
+            protected override bool ReleaseHandle()
+            {
+                CloseSortHandle(handle);
+                SetHandle(IntPtr.Zero);
+                return true;
+            }
+        }
+    }
+}