1158024 - Create Preference value to Pre-cache Secure Element rules

Status: RESOLVED WONTFIX

(Firefox OS Graveyard :: NFC, defect)

Description

[Garner Lee]

From Comment:
https://bugzilla.mozilla.org/show_bug.cgi?id=884594#c118

The Secure Element Access Control Enforcer pre-caches rules when the ACEService is first created by the SE. This may not be desirable if this happens to occur during phone startup, and startup time is extremely important (every millisecond counts).

It can be removed, and have the first SE DOM use pull in the access rules, and cache the rules then, or a device/system specific preference value can control it.

Comment 1

[Garner Lee]

Attachment: patch

This patch adds a flag to load the ace rules early (or not), based on a gecko preference.

Comment 2

[Yoshi Cheng-Hao Huang [:allstars.chh][:allstarschh][:yoshi]]

Comment on attachment 8608438 [details] [diff] [review]
patch

Review of attachment 8608438 [details] [diff] [review]:
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This still not seems to be a priority to me.
As there are still lots of SE bugs in the Bugzilla, and even the wallet app is not landed yet.
This should be a 2nd/3rd priority.
With considering FxOS phone should be a low-mid tie phone, it's still a question to me whether we should do this or not,

And the other question is, is the fetching rules fast enough ?
Are we pretty sure that all the code of fetching rules running on critical path and there's no more optimization could be done?

Also even we should do the pre-cache, there should be several ways to determine how to 'pre-cache' the rules,
do it in boot-time, or when wallet apps launches,
it could also do when the first time NFC is turn on,
with considering other types of SE(eSE, ASSD), 
this should be a more case-by-case discussion, instead of "just flipping the flag".

So I don't think we should spend time on this for now as this is still pre-mature.
There should be other bugs with more priority should be fixed.

Comment 3

[BMO Automation]

Firefox OS is not being worked on