Commit graph

3 commits

Author SHA1 Message Date
David Bremner
ba4e856529 tag-utils: use the tag_opt_list_t as talloc context, if possible.
The memory usage discipline of tag_op_list_t is never to free the
internal array of tag operations before freeing the whole list, so it
makes sense to take advantage of hierarchical de-allocation by talloc.

By not relying on the context passed into tag_parse_line, we can allow
tag_op_list_t structures to live longer than that context.
2012-12-22 23:13:15 -04:00
David Bremner
5c7990f251 tag-util: optimization of tag application
The idea is not to bother with restore operations if they don't change
the set of tags. This is actually a relatively common case.

In order to avoid fancy datastructures, this method is quadratic in
the number of tags; at least on my mail database this doesn't seem to
be a big problem.
2012-12-09 13:33:34 -04:00
David Bremner
fb50cc41fe tag-util.[ch]: New files for common tagging routines
These are meant to be shared between notmuch-tag and notmuch-restore.

The bulk of the routines implement a "tag operation list" abstract
data type act as a structured representation of a set of tag
operations (typically coming from a single tag command or line of
input).
2012-12-09 13:33:34 -04:00