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Int32.cs

00001 using System;
00002 using System.Runtime.InteropServices;
00003 using System.Reflection.Emit;
00004 
00005 using DBus;
00006 
00007 namespace DBus.DBusType
00008 {
00012   public class Int32 : IDBusType
00013   {
00014     public const char Code = 'i';
00015     private System.Int32 val;
00016     
00017     private Int32()
00018     {
00019     }
00020     
00021     public Int32(System.Int32 val, Service service) 
00022     {
00023       this.val = val;
00024     }
00025 
00026     public Int32(IntPtr iter, Service service)
00027     {
00028       dbus_message_iter_get_basic (iter, out this.val);
00029     }
00030     
00031     public void Append(IntPtr iter)
00032     {
00033       if (!dbus_message_iter_append_basic (iter, (int) Code, ref val))
00034         throw new ApplicationException("Failed to append INT32 argument:" + val);
00035     }
00036 
00037     public static bool Suits(System.Type type) 
00038     {
00039       if (type.IsEnum && Enum.GetUnderlyingType (type) == typeof(System.Int32)) {
00040         return true;
00041       }
00042       
00043       switch (type.ToString()) {
00044       case "System.Int32":
00045       case "System.Int32&":
00046         return true;      }
00047       
00048       return false;
00049     }
00050 
00051     public static void EmitMarshalIn(ILGenerator generator, Type type)
00052     {
00053       if (type.IsByRef) {
00054         generator.Emit(OpCodes.Ldind_I4);
00055       }
00056     }
00057 
00058     public static void EmitMarshalOut(ILGenerator generator, Type type, bool isReturn) 
00059     {
00060       generator.Emit(OpCodes.Unbox, type);
00061       generator.Emit(OpCodes.Ldind_I4);
00062       if (!isReturn) {
00063         generator.Emit(OpCodes.Stind_I4);
00064       }
00065     }
00066     
00067     public object Get() 
00068     {
00069       return this.val;
00070     }
00071 
00072     public object Get(System.Type type)
00073     {
00074       if (type.IsEnum) {
00075         return Enum.ToObject(type, this.val);
00076       }
00077       
00078       switch (type.ToString()) {
00079       case "System.Int32":
00080       case "System.Int32&":
00081         return this.val;
00082       default:
00083         throw new ArgumentException("Cannot cast DBus.Type.Int32 to type '" + type.ToString() + "'");
00084       }
00085     }    
00086 
00087     [DllImport("dbus-1")]
00088     private extern static void dbus_message_iter_get_basic (IntPtr iter, out System.Int32 value);
00089  
00090     [DllImport("dbus-1")]
00091     private extern static bool dbus_message_iter_append_basic (IntPtr iter, int type, ref System.Int32 value);
00092   }
00093 }

Generated on Tue Sep 13 01:28:08 2005 for D-BUS by  doxygen 1.4.4