public FileStream(IntPtr handle, FileAccess access,
bool ownsHandle, int bufferSize,
bool isAsync)
{
// Validate the parameters.
if (bufferSize <= 0)
{
throw new ArgumentOutOfRangeException
("bufferSize", _("ArgRange_BufferSize"));
}
if (access < FileAccess.Read ||
access > FileAccess.ReadWrite)
{
throw new ArgumentOutOfRangeException
("access", _("IO_FileAccess"));
}
#if false
if (!FileMethods.CheckHandleAccess(handle, access))
{
throw new UnauthorizedAccessException
(_("IO_IncorrectAccess"));
}
#endif
// Initialize the object state.
this.handle = handle;
this.access = access;
this.ownsHandle = ownsHandle;
this.isAsync = isAsync;
this.bufferSize = bufferSize;
this.buffer = new byte [bufferSize];
this.bufferPosn = 0;
this.bufferLen = 0;
this.bufferOwnedByWrite = false;
this.canSeek = FileMethods.CanSeek(handle);
if (canSeek)
{
this.position = FileMethods.Seek
(handle, 0, SeekOrigin.Current);
}
else
{
this.position = 0;
}
}
