// (c) 2003 Ximian, Inc. (http://www.ximian.com)
//
+//
+// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
using System.Runtime.InteropServices;
namespace System.IO {
internal class IntPtrStream : Stream {
- IntPtr base_address;
+ unsafe byte *base_address;
int size;
int position;
+ bool closed;
+
+ public event EventHandler Closed;
public IntPtrStream (IntPtr base_address, int size)
{
- this.base_address = base_address;
+ unsafe {
+ this.base_address = (byte*)((void *)base_address);
+ }
this.size = size;
+ position = 0;
}
public override bool CanRead {
throw new ArgumentException ("offset+count",
"The size of the buffer is less than offset + count.");
+ if (closed)
+ throw new ObjectDisposedException ("Stream has been closed");
+
if (position >= size || count == 0)
return 0;
if (position > size - count)
count = size - position;
- Marshal.Copy (base_address, buffer, offset, count);
+ unsafe {
+ Marshal.Copy ((IntPtr) (base_address + position), buffer, offset, count);
+ }
position += count;
return count;
}
if (position >= size)
return -1;
+ if (closed)
+ throw new ObjectDisposedException ("Stream has been closed");
+
unsafe {
- byte *p = (byte*)base_address;
- return p [position++];
+ return base_address [position++];
}
}
if (offset > (long) Int32.MaxValue)
throw new ArgumentOutOfRangeException ("Offset out of range. " + offset);
+ if (closed)
+ throw new ObjectDisposedException ("Stream has been closed");
+
int ref_point;
switch (loc) {
case SeekOrigin.Begin:
public override void Flush ()
{
}
+
+ public override void Close ()
+ {
+ closed = true;
+
+ if (Closed != null)
+ Closed (this, null);
+ }
}
}