Issues a getctag property request for a collection identified by uri, or, in case it's null
, on the URI defined in associated Source.
The ctag is a collection tag, which changes whenever the collection changes (similar to etag). The getctag is an extension, thus the function can fail when the server doesn't support it.
Free the returned out_ctag with g_free, when no longer needed.
| this | |
| uri |
URI to issue the request for, or null to read from Source |
| out_ctag |
return location for the ctag |
| cancellable |
optional Cancellable object, or null |
|
Whether succeeded. |