Specifically, introduce an LLEventMailDrop("LoginSync"). When the updater
detects that an update is required, it will post to that rendezvous point.
When login.cgi responds with login failure, make the login coroutine wait (a
few seconds) for that ping from the updater.
If we receive that ping and if it contains a "reply" key, make the fail.login
listener respond to the updater with an indication of whether to proceed with
update.
If both login.cgi and the updater concur that an update is required, produce a
new confirmation message for the user and then (once user responds) tell the
updater to proceed. Otherwise, produce the usual login-failure message and
tell the updater never mind.
Introduce LLCoro::OverrideConsuming to provide temporary save/restore of the
set_consuming() / get_consuming() flag. It's a good idea to set the consuming
flag when retrieving data from an LLEventMailDrop.
LLLoginInstance has a test hook setNotificationsInterface(), used by
lllogininstance_test.cpp to redirect notifications through a dummy
LLNotificationsInterface implementation. Certain of LLLoginInstance's
MandatoryUpdateMachine state classes need to post notifications too; but until
now they directly called LLNotificationsUtil::add(). In the production viewer,
this should (!) be the same as calling through LLLoginInstance::mNotifications
-- but it broke two of the LLLoginInstance unit tests, so they were skipped.
Since MandatoryUpdateMachine's constructor is already passed the invoking
LLLoginInstance&, make it store the reference. Add MandatoryUpdateMachine::
getNotificationsInterface(), which forwards to new LLLoginInstance::
getNotificationsInterface(). Change LLNotificationsUtil::add() calls in
MandatoryUpdateMachine state classes to call through mMachine's
getNotificationInterface() instead.
This allows us to remove #include "llnotificationsutil.h" from
lllogininstance.cpp, also that #include plus stub LLNotificationsUtil::add()
implementation from lllogininstance_test.cpp.
Finally, it allows us to remove the skip() calls from the two unit tests.
Ansariel