public override long Seek(long offset, SeekOrigin origin)
{
if (this.aH == IntPtr.Zero)
{
throw new ObjectDisposedException(null);
}
int num = MacOSXVirtualFileStream.VirtualFileStream_Seek(this.aH, (int)offset, origin);
if (num != 0)
{
throw new IOException("Seeking file length failed.");
}
switch (origin)
{
case SeekOrigin.Begin:
this.ah = (int)offset;
break;
case SeekOrigin.Current:
this.ah += (int)offset;
break;
case SeekOrigin.End:
this.ah = (int)this.Length + (int)offset;
break;
}
return((long)this.ah);
}
protected override void Dispose(bool disposing)
{
if (this.aH != IntPtr.Zero)
{
MacOSXVirtualFileStream.VirtualFileStream_Close(this.aH);
this.aH = IntPtr.Zero;
}
base.Dispose(disposing);
}
public override void Close()
{
if (this.aH != IntPtr.Zero)
{
MacOSXVirtualFileStream.VirtualFileStream_Close(this.aH);
this.aH = IntPtr.Zero;
}
base.Close();
}
public MacOSXVirtualFileStream(string realPath)
{
this.aH = MacOSXVirtualFileStream.VirtualFileStream_Open(realPath);
if (!(this.aH == IntPtr.Zero))
{
return;
}
if (!File.Exists(realPath))
{
throw new FileNotFoundException("File not found.", realPath);
}
throw new IOException(string.Format("Opening of a file failed \"{0}\".", realPath));
}
public unsafe override int ReadByte()
{
if (this.aH == IntPtr.Zero)
{
throw new ObjectDisposedException(null);
}
byte result;
int num = MacOSXVirtualFileStream.VirtualFileStream_Read(this.aH, (IntPtr)((void *)(&result)), 1);
if (num < 0)
{
throw new IOException("Reading file failed.");
}
if (num == 0)
{
return(-1);
}
this.ah++;
return((int)result);
}
public override int ReadUnmanaged(IntPtr buffer, int count)
{
if (this.aH == IntPtr.Zero)
{
throw new ObjectDisposedException(null);
}
if (count < 0)
{
throw new ArgumentOutOfRangeException("count");
}
if (count == 0)
{
return(0);
}
int num = MacOSXVirtualFileStream.VirtualFileStream_Read(this.aH, buffer, count);
if (num < 0)
{
throw new IOException("Reading file failed.");
}
this.ah += num;
return(num);
}
