//
// Summary:
// Skip response data when requested by a Range header. Skip over and discard bytesToSkip
// bytes of response data. - If data is available immediately set bytesSkipped to
// the number of of bytes skipped and return true. - To read the data at a later
// time set bytesSkipped to 0, return true and execute callback when the data is
// available. - To indicate failure set bytesSkipped to < 0 (e.g. -2 for ERR_FAILED)
// and return false. This method will be called in sequence but not from a dedicated
// thread.
//
// Parameters:
// bytesToSkip:
// number of bytes to be skipped
//
// bytesSkipped:
// If data is available immediately set bytesSkipped to the number of of bytes skipped
// and return true. To read the data at a later time set bytesSkipped to 0, return
// true and execute callback when the data is available.
//
// callback:
// To read the data at a later time set bytesSkipped to 0, return true and execute
// callback when the data is available.
//
// Returns:
// See summary
public bool Skip(long bytesToSkip, out long bytesSkipped, IResourceSkipCallback callback)
{
// To indicate failure set bytesSkipped to < 0 (e.g. -2 for ERR_FAILED)
// and return false.
bytesSkipped = -2;
return(false);
}
bool IResourceHandler.Skip(long bytesToSkip, out long bytesSkipped, IResourceSkipCallback callback)
{
//We don't need the callback, as it's an unmanaged resource we should dispose it (could wrap it in a using statement).
callback.Dispose();
//No Stream or Stream cannot seek then we indicate failure
if (stream == null || !stream.CanSeek)
{
//Indicate failure
bytesSkipped = -2;
return(false);
}
if (stream.Position == (stream.Length - 1))
{
bytesSkipped = 0;
return(true);
}
var oldPosition = stream.Position;
var position = stream.Seek(bytesToSkip, SeekOrigin.Current);
bytesSkipped = position - oldPosition;
return(true);
}
bool IResourceHandler.Skip(long bytesToSkip, out long bytesSkipped, IResourceSkipCallback callback)
{
//No Stream or Stream cannot seek then we indicate failure
if (stream == null || !stream.CanSeek)
{
//Indicate failure
bytesSkipped = -2;
return(false);
}
if (stream.Position == (stream.Length - 1))
{
bytesSkipped = 0;
return(true);
}
var oldPosition = stream.Position;
var position = stream.Seek(bytesToSkip, SeekOrigin.Current);
bytesSkipped = position - oldPosition;
return(true);
}
bool IResourceHandler.Skip(long bytesToSkip, out long bytesSkipped, IResourceSkipCallback callback)
{
if (_stream == null || !_stream.CanSeek)
{
bytesSkipped = -2;
return(false);
}
bytesSkipped = bytesToSkip;
_stream.Seek(bytesToSkip, SeekOrigin.Current);
return(false);
}
bool IResourceHandler.Skip(long bytesToSkip, out long bytesSkipped, IResourceSkipCallback callback)
{
//No Stream or Stream cannot seek then we indicate failure
if (Stream == null || !Stream.CanSeek)
{
//Indicate failure
bytesSkipped = -2;
return(false);
}
bytesSkipped = bytesToSkip;
Stream.Seek(bytesToSkip, SeekOrigin.Current);
return(false);
}
bool IResourceHandler.Skip(long bytesToSkip, out long bytesSkipped, IResourceSkipCallback callback)
{
//No Stream or Stream cannot seek then we indicate failure
if (Stream == null || !Stream.CanSeek)
{
//Indicate failure
bytesSkipped = -2;
return(false);
}
bytesSkipped = bytesToSkip;
Stream.Seek(bytesToSkip, SeekOrigin.Current);
//If data is available immediately set bytesSkipped to the number of of bytes skipped and return true.
return(true);
}
bool IResourceHandler.Skip(long bytesToSkip, out long bytesSkipped, IResourceSkipCallback callback)
{
//We don't need the callback, as it's an unmanaged resource we should dispose it (could wrap it in a using statement).
callback.Dispose();
//No Stream or Stream cannot seek then we indicate failure
if (Stream == null || !Stream.CanSeek)
{
//Indicate failure
bytesSkipped = -2;
return(false);
}
bytesSkipped = bytesToSkip;
Stream.Seek(bytesToSkip, SeekOrigin.Current);
//If data is available immediately set bytesSkipped to the number of of bytes skipped and return true.
return(true);
}
bool IResourceHandler.Skip(long bytesToSkip, out long bytesSkipped, IResourceSkipCallback callback)
{
bytesSkipped = -1;
return(false);
}
bool IResourceHandler.Skip(long bytesToSkip, out long bytesSkipped, IResourceSkipCallback callback)
{
throw new NotImplementedException();
}
bool IResourceHandler.Skip(long bytesToSkip, out long bytesSkipped, IResourceSkipCallback callback)
{
//Should never be called
throw new NotImplementedException("This method should never be called");
}
public bool Skip(long bytesToSkip, out long bytesSkipped, IResourceSkipCallback callback)
{
throw new System.NotImplementedException();
}
bool IResourceHandler.Skip(long bytesToSkip, out long bytesSkipped, IResourceSkipCallback callback)
{
return(ResourceHandler.Skip(bytesToSkip, out bytesSkipped, callback));
}
public bool Skip(long bytesToSkip, out long bytesSkipped, IResourceSkipCallback callback)
{
bytesSkipped = 0;
return(true);
}
bool IResourceHandler.Skip(long bytesToSkip, out long bytesSkipped, IResourceSkipCallback callback)
{
bytesSkipped = -2; // ERR_FAILED
callback.Dispose();
return(false);
}
