An optional cancellable used to cancel the entire upload operation. If a #GCancellable instance isn't provided for this property at construction time (i.e. to gdata_upload_stream_new()), one will be created internally and can be retrieved using gdata_upload_stream_get_cancellable() and used to cancel the upload operation with g_cancellable_cancel() just as if it was passed to gdata_upload_stream_new().
If the upload operation is cancelled using this #GCancellable, any ongoing network activity will be stopped, and any pending or future calls to #GOutputStream API on the #GDataUploadStream will return %G_IO_ERROR_CANCELLED. Note that the #GCancellable objects which can be passed to individual #GOutputStream operations will not cancel the upload operation proper if cancelled — they will merely cancel that API call. The only way to cancel the upload operation completely is using #GDataUploadStream:cancellable.
The content length (in bytes) of the file being uploaded (i.e. as returned by g_file_info_get_size()). Note that this does not include the length of the XML serialisation of #GDataUploadStream:entry, if set.
If this is -1 the upload will be non-resumable; if it is non-negative, the upload will be resumable.
The content type of the file being uploaded (i.e. as returned by g_file_info_get_content_type()).
The entry used for metadata to upload.
The HTTP request method to use when uploading the file.
The service which is used to authorize the upload, and to which the upload relates.
The slug of the file being uploaded. This is usually the display name of the file (i.e. as returned by g_file_info_get_display_name()).
The URI to upload the data and metadata to. This must be HTTPS.
The authorization domain for the upload, against which the #GDataService:authorizer for the #GDataDownloadStream:service should be authorized. This may be %NULL if authorization is not needed for the upload.