public void Write(byte[] data, int offset, int length, Action <UvDataArgs> callback = null) { if (this.Status != FileStatus.Open) { throw new InvalidOperationException("File handle must be open in order to write data"); } IntPtr req = IntPtr.Zero; try { req = this.CreateRequest(data, offset, length); CheckError(Uvi.uv_fs_write(this.Loop.Handle, req, _file, new[] { this.Loop.Requests[req] }, 1, -1, _writeDelegate)); _writeCallback = new UvDataCallback(this, callback, data); } catch (Exception) { this.FreeRequest(req); throw; } }