mirror of
https://github.com/Ryujinx/GtkSharp.git
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![Xavier Claessens](/assets/img/avatar_default.png)
If we don't pass NULL to the length argument it makes C code write the length at random places in memory and bad things happens.
344 lines
11 KiB
C#
344 lines
11 KiB
C#
// Copyright (c) 2011 Novell, Inc.
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of version 2 of the Lesser GNU General
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// Public License as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this program; if not, write to the
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// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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// Boston, MA 02111-1307, USA.
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using System;
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using System.Runtime.InteropServices;
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using System.Collections.Generic;
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namespace GLib {
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public class Variant : IDisposable {
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IntPtr handle;
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public IntPtr Handle {
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get { return handle; }
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}
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// Docs say that GVariant is threadsafe.
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~Variant ()
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{
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Dispose (false);
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}
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public void Dispose ()
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{
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Dispose (true);
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern void g_variant_unref (IntPtr handle);
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void Dispose (bool disposing)
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{
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if (handle == IntPtr.Zero)
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return;
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g_variant_unref (handle);
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handle = IntPtr.Zero;
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if (disposing)
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GC.SuppressFinalize (this);
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_ref_sink (IntPtr handle);
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public Variant (IntPtr handle)
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{
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this.handle = g_variant_ref_sink (handle);
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_get_type (IntPtr val);
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VariantType type;
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public VariantType Type {
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get {
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if (type == null)
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type = new VariantType (g_variant_get_type (Handle));
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return type;
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}
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_new_variant (IntPtr val);
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public static Variant NewVariant (Variant val) {
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return new Variant (g_variant_new_variant (val.Handle));
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_new_boolean (bool val);
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public Variant (bool val) : this (g_variant_new_boolean (val)) {}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_new_byte (byte val);
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public Variant (byte val) : this (g_variant_new_byte (val)) {}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_new_int16 (short val);
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public Variant (short val) : this (g_variant_new_int16 (val)) {}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_new_uint16 (ushort val);
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public Variant (ushort val) : this (g_variant_new_uint16 (val)) {}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_new_int32 (int val);
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public Variant (int val) : this (g_variant_new_int32 (val)) {}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_new_uint32 (uint val);
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public Variant (uint val) : this (g_variant_new_uint32 (val)) {}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_new_int64 (long val);
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public Variant (long val) : this (g_variant_new_int64 (val)) {}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_new_uint64 (ulong val);
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public Variant (ulong val) : this (g_variant_new_uint64 (val)) {}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_new_double (double val);
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public Variant (double val) : this (g_variant_new_double (val)) {}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_new_string (IntPtr val);
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public Variant (string val)
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{
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IntPtr native_val = Marshaller.StringToPtrGStrdup (val);
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handle = g_variant_ref_sink (g_variant_new_string (native_val));
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Marshaller.Free (native_val);
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_new_strv (IntPtr[] strv, IntPtr length);
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public Variant (string[] strv)
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{
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IntPtr[] native = Marshaller.StringArrayToNullTermPointer (strv);
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handle = g_variant_ref_sink (g_variant_new_strv (native, new IntPtr ((long) strv.Length)));
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Marshaller.Free (native);
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_new_tuple (IntPtr[] children, UIntPtr n_children);
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public static Variant NewTuple (Variant[] children)
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{
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if (children == null)
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return new Variant (g_variant_new_tuple (null, new UIntPtr (0ul)));
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IntPtr[] native = new IntPtr[children.Length];
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for (int i = 0; i < children.Length; i++)
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native[i] = children[i].Handle;
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return new Variant (g_variant_new_tuple (native, new UIntPtr ((ulong) children.Length)));
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_new_array (IntPtr child_type, IntPtr[] children, UIntPtr n_children);
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public static Variant NewArray (Variant[] children)
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{
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if (children == null) {
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throw new ArgumentNullException ("children", "To create an empty array use NewArray (VariantType.<Type>, null)");
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}
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return NewArray (null, children);
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}
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public static Variant NewArray (VariantType type, Variant[] children)
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{
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if (children == null) {
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if (type == null) {
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throw new ArgumentException ("The type and children parameters cannot be both null");
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} else {
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return new Variant (g_variant_new_array (type.Handle, null, new UIntPtr (0ul)));
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}
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}
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IntPtr[] native = new IntPtr[children.Length];
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for (int i = 0; i < children.Length; i++)
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native[i] = children[i].Handle;
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return new Variant (g_variant_new_array (type == null ? (IntPtr) null : type.Handle,
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native, new UIntPtr ((ulong) children.Length)));
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_new_dict_entry (IntPtr k, IntPtr v);
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public static Variant NewDictEntry (Variant k, Variant v)
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{
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return new Variant (g_variant_new_dict_entry (k.Handle, v.Handle));
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}
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public Variant (IDictionary<string, Variant> dict)
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{
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VariantType type = VariantType.NewDictionaryEntry (
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VariantType.String,
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VariantType.Variant);
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var pairs = new List<Variant> ();
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foreach (var kvp in dict)
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pairs.Add (NewDictEntry (new Variant (kvp.Key), NewVariant (kvp.Value)));
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handle = g_variant_ref_sink (NewArray (type, pairs.ToArray ()).Handle);
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern bool g_variant_get_boolean (IntPtr handle);
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public static explicit operator bool (Variant val)
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{
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return g_variant_get_boolean (val.Handle);
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern byte g_variant_get_byte (IntPtr handle);
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public static explicit operator byte (Variant val)
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{
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return g_variant_get_byte (val.Handle);
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern short g_variant_get_int16 (IntPtr handle);
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public static explicit operator short (Variant val)
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{
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return g_variant_get_int16 (val.Handle);
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern ushort g_variant_get_uint16 (IntPtr handle);
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public static explicit operator ushort (Variant val)
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{
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return g_variant_get_uint16 (val.Handle);
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern int g_variant_get_int32 (IntPtr handle);
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public static explicit operator int (Variant val)
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{
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return g_variant_get_int32 (val.Handle);
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern uint g_variant_get_uint32 (IntPtr handle);
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public static explicit operator uint (Variant val)
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{
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return g_variant_get_uint32 (val.Handle);
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern long g_variant_get_int64 (IntPtr handle);
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public static explicit operator long (Variant val)
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{
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return g_variant_get_int64 (val.Handle);
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern ulong g_variant_get_uint64 (IntPtr handle);
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public static explicit operator ulong (Variant val)
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{
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return g_variant_get_uint64 (val.Handle);
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern double g_variant_get_double (IntPtr handle);
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public static explicit operator double (Variant val)
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{
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return g_variant_get_double (val.Handle);
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_get_string (IntPtr handle, IntPtr length);
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public static explicit operator string (Variant val)
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{
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IntPtr str = g_variant_get_string (val.Handle, IntPtr.Zero);
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return GLib.Marshaller.Utf8PtrToString (str);
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_print (IntPtr variant, bool type_annotate);
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public string Print (bool type_annotate)
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{
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IntPtr str = g_variant_print (handle, type_annotate);
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return Marshaller.PtrToStringGFree (str);
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_n_children (IntPtr handle);
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_get_child_value (IntPtr handle, IntPtr index);
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public Variant[] ToArray ()
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{
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var n_children = (long) g_variant_n_children (Handle);
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var ret = new Variant[n_children];
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for (long i = 0; i < n_children; i++) {
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var h = g_variant_get_child_value (Handle, new IntPtr (i));
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ret[i] = new Variant (h);
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g_variant_unref (h);
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}
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return ret;
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_variant_get_variant (IntPtr handle);
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public Dictionary<string, Variant> ToAsv ()
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{
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var ret = new Dictionary<string, Variant> ();
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foreach (var dictEntry in ToArray ()) {
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var pair = dictEntry.ToArray ();
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var key = (string) pair[0];
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var h = g_variant_get_variant (pair[1].Handle);
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var value = new Variant (h);
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g_variant_unref (h);
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ret.Add (key, value);
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}
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return ret;
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}
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}
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}
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