mirror of
git://projects.qi-hardware.com/eda-tools.git
synced 2024-11-22 20:53:44 +02:00
eeshow/gui.c: write down some more thoughts on making caching better
This commit is contained in:
parent
06235a3966
commit
cf2ca585f5
22
eeshow/gui.c
22
eeshow/gui.c
@ -959,6 +959,28 @@ static struct gui_sheet *get_sheets(struct gui_ctx *ctx,
|
||||
* libraries that are the same, even if there are others that have changed.
|
||||
* - maybe put components into tree, so that they can be replaced individually
|
||||
* (this would also help to identify sheets that don't need parsing)
|
||||
*
|
||||
* Sheet caching:
|
||||
*
|
||||
* We reuse previous sheets if
|
||||
* - all libraries are identical (whether a given sheet uses them or not),
|
||||
* - they have no sub-sheets, and
|
||||
* - the objects IDs (hashes) are identical.
|
||||
*
|
||||
* Note that we only compare with the immediately preceding (newer) revision,
|
||||
* so branches and merges can disrupt caching.
|
||||
*
|
||||
* Possible optimizations:
|
||||
* - if we record which child sheets a sheet has, we could also clone it,
|
||||
* without having to parse it. However, this is somewhat complex and may
|
||||
* not save all that much time.
|
||||
* - we could record what libraries a sheet uses, and parse only if one of
|
||||
* these has changed (benefits scenarios with many library files),
|
||||
* - we could record what components a sheet uses, and parse only if one of
|
||||
* these has changed (benefits scenarios with few big libraries),
|
||||
* - we could postpone library lookups to render time.
|
||||
* - we could record IDs globally, which would help to avoid tripping over
|
||||
* branches and merges.
|
||||
*/
|
||||
|
||||
static const struct sheet *parse_files(struct gui_hist *hist,
|
||||
|
Loading…
Reference in New Issue
Block a user