2004-04-30 Ben Maurer <bmaurer@users.sourceforge.net>
[mono.git] / mcs / class / corlib / System.IO / FileSystemInfo.cs
index e79ef5550b3d604a2f7ed89b391e5e64510548b5..052019c96a7b890b7d83253cb35483abce12c822 100644 (file)
-//------------------------------------------------------------------------------\r
-// \r
-// System.IO.FileSystemInfo.cs \r
-//\r
-// Copyright (C) 2001 Moonlight Enterprises, All Rights Reserved\r
-// \r
-// Author:         Jim Richardson, develop@wtfo-guru.com\r
-// Created:        Monday, August 13, 2001 \r
-//\r
-//------------------------------------------------------------------------------\r
-\r
-using System;\r
-\r
-namespace System.IO\r
-{\r
-       /// <summary>\r
-       /// \r
-       /// </summary>\r
-       public abstract class FileSystemInfo : MarshalByRefObject\r
-       {\r
-               private FileAttributes itsAttributes;\r
-               private DateTime itsCreated;\r
-               private DateTime itsLastAccess;\r
-               private DateTime itsLastWrite;\r
-               //private string itsFullName;\r
-               protected string FullPath;\r
-               protected string OriginalPath;\r
-\r
-               protected FileSystemInfo()\r
+//------------------------------------------------------------------------------
+// 
+// System.IO.FileSystemInfo.cs 
+//
+// Copyright (C) 2001 Moonlight Enterprises, All Rights Reserved
+// 
+// Author:         Jim Richardson, develop@wtfo-guru.com
+//                 Dan Lewis (dihlewis@yahoo.co.uk)
+// Created:        Monday, August 13, 2001 
+//
+//------------------------------------------------------------------------------
+
+using System;
+using System.Runtime.InteropServices;
+using System.Runtime.Serialization;
+
+namespace System.IO {
+       
+       [Serializable]
+       public abstract class FileSystemInfo : MarshalByRefObject, ISerializable {
+               #region Implementation of ISerializable
+
+               [ComVisible(false)]
+               public virtual void GetObjectData (SerializationInfo info, StreamingContext context)
+               {
+                       info.AddValue ("OriginalPath", OriginalPath, typeof(string));
+                       info.AddValue ("FullPath", FullPath, typeof(string));
+               }
+
+               #endregion Implementation of ISerializable
+
+               // public properties
+
+               public abstract bool Exists { get; }
+
+               public abstract string Name { get; }
+
+               public virtual string FullName {
+                       get {
+                               return FullPath;
+                       }
+               }
+
+               public string Extension {
+                       get {
+                               return Path.GetExtension (Name);
+                       }
+               }
+
+               public FileAttributes Attributes {
+                       get {
+                               Refresh (false);
+                               return stat.Attributes;
+                       }
+
+                       set {
+                               MonoIOError error;
+                               
+                               if (!MonoIO.SetFileAttributes (FullName,
+                                                              value,
+                                                              out error))
+                                       throw MonoIO.GetException (error);
+                               Refresh (true);
+                       }
+               }
+
+               public DateTime CreationTime {
+                       get {
+                               Refresh (false);
+                               return DateTime.FromFileTime (stat.CreationTime);
+                       }
+
+                       set {
+                               long filetime = value.ToFileTime ();
+                       
+                               MonoIOError error;
+                               
+                               if (!MonoIO.SetFileTime (FullName, filetime,
+                                                        -1, -1, out error))
+                                       throw MonoIO.GetException (error);
+                               Refresh (true);
+                       }
+               }
+
+               [ComVisible(false)]
+               public DateTime CreationTimeUtc {
+                       get {
+                               return CreationTime.ToUniversalTime ();
+                       }
+
+                       set {
+                               CreationTime = value.ToLocalTime ();
+                       }
+               }
+
+               public DateTime LastAccessTime {
+                       get {
+                               Refresh (false);
+                               return DateTime.FromFileTime (stat.LastAccessTime);
+                       }
+
+                       set {
+                               long filetime = value.ToFileTime ();
+
+                               MonoIOError error;
+                               
+                               if (!MonoIO.SetFileTime (FullName, -1,
+                                                        filetime, -1,
+                                                        out error))
+                                       throw MonoIO.GetException (error);
+                               Refresh (true);
+                       }
+               }
+
+               [ComVisible(false)]
+               public DateTime LastAccessTimeUtc {
+                       get {
+                               Refresh (false);
+                               return LastAccessTime.ToUniversalTime ();
+                       }
+
+                       set {
+                               LastAccessTime = value.ToLocalTime ();
+                       }
+               }
+
+               public DateTime LastWriteTime {
+                       get {
+                               Refresh (false);
+                               return DateTime.FromFileTime (stat.LastWriteTime);
+                       }
+
+                       set {
+                               long filetime = value.ToFileTime ();
+
+                               MonoIOError error;
+                               
+                               if (!MonoIO.SetFileTime (FullName, -1, -1,
+                                                        filetime, out error))
+                                       throw MonoIO.GetException (error);
+                               Refresh (true);
+                       }
+               }
+
+               [ComVisible(false)]
+               public DateTime LastWriteTimeUtc {
+                       get {
+                               Refresh (false);
+                               return LastWriteTime.ToUniversalTime ();
+                       }
+
+                       set {
+                               LastWriteTime = value.ToLocalTime ();
+                       }
+               }
+
+               // public methods
+
+               public abstract void Delete ();
+
+               public void Refresh ()
+               {
+                       Refresh (true);
+               }
+
+               // protected
+
+               protected FileSystemInfo ()
+               {
+                       this.valid = false;
+                       this.FullPath = null;
+               }
+
+               protected FileSystemInfo (SerializationInfo info, StreamingContext context)
+               {
+                       if (info == null)
+                       {
+                               throw new ArgumentNullException("info");
+                       }
+
+                       FullPath = info.GetString("FullPath");
+                       OriginalPath = info.GetString("OriginalPath");
+               }
+
+               protected string FullPath;
+               protected string OriginalPath;
+
+               // internal
+
+               internal void Refresh (bool force)
                {
-                       itsAttributes = FileAttributes.Normal;\r
-                       itsCreated = itsLastAccess = itsLastWrite = DateTime.MinValue;
-                       FullPath = OriginalPath = String.Empty;\r
-               }\r
-\r
-               public FileAttributes Attributes\r
-               {\r
-                       get\r
-                       {\r
-                               return itsAttributes;\r
-                       }\r
-                       set\r
-                       {\r
-                               itsAttributes = value;\r
-                       }\r
-               }\r
-\r
-               public DateTime CreationTime\r
-               {\r
-                       get\r
-                       {\r
-                               return itsCreated;\r
-                       }\r
-                       set\r
-                       {\r
-                               itsCreated = value;\r
-                       }\r
-               }\r
-\r
-               public abstract bool Exists {get;}\r
-               public abstract string Name {get;}\r
-               public abstract void Delete();\r
-\r
-               /// <summary>\r
-               /// Get the extension of this item\r
-               /// </summary>\r
-               public string Extension\r
-               {\r
-                       get\r
-                       {\r
-                               return Path.GetExtension(FullPath);\r
-                       }\r
-               }\r
-\r
-               public string FullName\r
-               {\r
-                       get\r
-                       {\r
-                               return FullPath;\r
-                       }\r
-               }\r
-\r
-               public DateTime LastAccessTime\r
-               {\r
-                       get\r
-                       {\r
-                               return itsLastAccess;\r
-                       }\r
-               }\r
-\r
-               public DateTime LastWriteTime\r
-               {\r
-                       get\r
-                       {\r
-                               return itsLastWrite;\r
-                       }\r
-               }\r
-\r
-               public override int GetHashCode()\r
-               {\r
-                       return FullPath.GetHashCode();\r
-               }\r
-\r
-               public override bool Equals(object obj)\r
-               {       // TODO: Implement\r
-                       return false;\r
-               }\r
-\r
-               new public static bool Equals(object obj1, object obj2)\r
-               {       // TODO: Implement\r
-                       return false;\r
-               }\r
-\r
-               public void Refresh()\r
-               {       // TODO: Implement\r
-               }\r
-\r
-               /* TODO: determine if we need these\r
-               public override ObjRef CreateObjRef(Type requestedType)\r
-               {\r
-                       return null;\r
-               }\r
-               \r
-               /*public object GetLifeTimeService ()
+                       if (valid && !force)
+                               return;
+
+                       MonoIOError error;
+                       
+                       MonoIO.GetFileStat (FullName, out stat, out error);
+                       valid = true;
+                       
+                       InternalRefresh ();
+               }
+               
+               internal virtual void InternalRefresh ()
                {
-                       return null;
                }
 
-               public override object InitializeLifeTimeService ()
+               internal void CheckPath (string path)
                {
-                       return null;
-               }\r
-               */\r
-       }\r
-}\r
+                       if (path == null)
+                               throw new ArgumentNullException ();
+                       if (path.IndexOfAny (Path.InvalidPathChars) != -1)
+                               throw new ArgumentException ("Invalid characters in path.");
+               }
+
+               internal MonoIOStat stat;
+               internal bool valid;
+       }
+}