[PATCH 0/1] Makes metadata() function cancelable

["Juan A. Suarez Romero" <jasuarez igalia com>]

Hello.

This patch comes from a grilo-clutter-player author requirement: metadata()
function should be cancelable.

Actually, I think this requirement makes sense: all asynchronous functions
should be cancelable, or at least, allow plugins to do it.

It is true that this requirement is not as strong as in case of browse(),
search() or query(), but still, having there is still a good idea if source
want to add support for canceling a metadata() function.

Right now, no source in our official set is able to cancel a metadata()
operation. But we could add it to them. How? Most appropriate place to add
canceling is when reading content from web service. That is, most of sources
are using GIO to read content. GIO operations can be cancelable. Thus, we could
cancel the metadata() operation by canceling this GIO reading. It would make
sense mainly if webservice is not responding, or network is veeery slow.

Comments are welcome.

	J.A.



Juan A. Suarez Romero (1):
  core: Make grl_media_source_metadata() cancelable

 src/grl-media-source.c |   28 +++++++++++++++++++++-------
 src/grl-media-source.h |   14 ++++++++------
 2 files changed, 29 insertions(+), 13 deletions(-)