MoreThanTv now working on mono with libcurl

src/CurlSharp/CurlSlist.cs

@@ -0,0 +1,144 @@
+/***************************************************************************
+ *
+ * CurlS#arp
+ *
+ * Copyright (c) 2013 Dr. Masroor Ehsan (masroore@gmail.com)
+ * Portions copyright (c) 2004, 2005 Jeff Phillips (jeff@jeffp.net)
+ *
+ * This software is licensed as described in the file LICENSE, which you
+ * should have received as part of this distribution.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of this Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the LICENSE file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF
+ * ANY KIND, either express or implied.
+ *
+ **************************************************************************/
+
+using System;
+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+
+namespace CurlSharp
+{
+    /// <summary>
+    ///     This class wraps a linked list of strings used in <c>cURL</c>. Use it
+    ///     to build string lists where they're required, such as when calling
+    ///     <see cref="CurlEasy.SetOpt" /> with <see cref="CurlOption.Quote" />
+    ///     as the option.
+    /// </summary>
+    public class CurlSlist : IDisposable
+    {
+#if !USE_LIBCURLSHIM
+        [StructLayout(LayoutKind.Sequential)]
+        private class curl_slist
+        {
+            /// char*
+            [MarshalAs(UnmanagedType.LPStr)] public string data;
+
+            /// curl_slist*
+            public IntPtr next;
+        }
+#endif
+        private IntPtr _handle;
+
+        /// <summary>
+        ///     Constructor
+        /// </summary>
+        /// <exception cref="System.InvalidOperationException">
+        ///     This is thrown
+        ///     if <see cref="Curl" /> hasn't bee properly initialized.
+        /// </exception>
+        public CurlSlist()
+        {
+            Curl.EnsureCurl();
+            _handle = IntPtr.Zero;
+        }
+
+        public CurlSlist(IntPtr handle)
+        {
+            _handle = handle;
+        }
+
+        /// <summary>
+        ///     Read-only copy of the strings stored in the SList
+        /// </summary>
+        public List<string> Strings
+        {
+            get
+            {
+                if (_handle == IntPtr.Zero)
+                    return null;
+                var strings = new List<string>();
+
+#if !USE_LIBCURLSHIM
+                var slist = new curl_slist();
+                Marshal.PtrToStructure(_handle, slist);
+
+                while (true)
+                {
+                    strings.Add(slist.data);
+                    if (slist.next != IntPtr.Zero)
+                        Marshal.PtrToStructure(slist.next, slist);
+                    else
+                        break;
+                }
+#endif
+                return strings;
+            }
+        }
+
+        /// <summary>
+        ///     Destructor
+        /// </summary>
+        ~CurlSlist()
+        {
+            Dispose(false);
+        }
+
+        /// <summary>
+        ///     Append a string to the list.
+        /// </summary>
+        /// <param name="str">The <c>string</c> to append.</param>
+        public void Append(string str)
+        {
+#if USE_LIBCURLSHIM
+            _handle = NativeMethods.curl_shim_add_string_to_slist(_handle, str);
+#else
+            _handle = NativeMethods.curl_slist_append(_handle, str);
+#endif
+        }
+
+        /// <summary>
+        ///     Free all internal strings.
+        /// </summary>
+        public void Dispose()
+        {
+            GC.SuppressFinalize(this);
+            Dispose(true);
+        }
+
+        internal IntPtr Handle
+        {
+            get { return _handle; }
+        }
+
+        private void Dispose(bool disposing)
+        {
+            lock (this)
+            {
+                if (_handle != IntPtr.Zero)
+                {
+#if USE_LIBCURLSHIM
+                    NativeMethods.curl_shim_free_slist(_handle);
+#else
+                    NativeMethods.curl_slist_free_all(_handle);
+#endif
+                    _handle = IntPtr.Zero;
+                }
+            }
+        }
+    }
+}