I'm sad to say that this improved performance significantly. A lot of
this win is due to the Rust compiler not being smart about not zeroing
objects out if it doesn't need to.
This fixes issue #3630
A short summary of the changes:
* Use atomic generation id to cancel inflight requests
* Handles nested calls to abort, open, send inside handlers
* Adds XHRReleaseMsg to delay freeing XHR object till all
inflight events are processed
* Handles both timeout, errors and abort/open in a symmetric fashion
i.e All inflight events will be cancelled for timeouts, aborts,
errors and on calling open.
* Change the ErroredMsg enum to be more symmetric with the returned
Error enum
I noticed a few possible changes that could make the code for fetch task simpler:
* We can remove the additional timer task and let the fetch task manage
its own timer (or maybe the resource loader can do this.)
* The CORS related steps could also be moved into the resource loader.
* Right now upload events are not support. This requires some support
from resource loader.
One part (of 8!) of css font family disambiguation is that font families should
be matched case-insensitively.
This patch implements that. Once it lands, a bug needs to be filed to do lowercasing
properly (as a string, instead of char-by-char -- it's a unicode thing).
r? @gw
Instead of looking at the display tree, have ContentBox(es)Query consult
the flow tree. This allow optimizing away parts of the display tree
later. To do this we need to be more careful about how we send reflow
requests, only querying the flow tree when possible.
Fixes#3790.
Instead of looking at the display tree, have ContentBox(es)Query consult
the flow tree. This allow optimizing away parts of the display tree
later. To do this we need to be more careful about how we send reflow
requests, only querying the flow tree when possible.
Fixes#3790.
This fixes issue #3630
A short summary of the changes:
* Use generation id to cancel inflight requests
* Handles nested calls to abort, open, send inside handlers
* Adds XHRReleaseMsg to delay freeing XHR object till all
inflight events are processed
* Change the ErroredMsg enum to be more symmetric with the returned
Error enum
This fixes a performance regression caused by the previous patches. Once we
allowed script and layout to run during parsing, it was running too often
(every time the document changed and called window.reflow).
Fixes#1269.
This implements the parts of the "prepare a script element" algorithm that are
required for synchronous scripts. It also adds some infrastructure for future
support of the `async` and `defer` attributes.
