If a time value doesn't need to be sent to another host, saved to the db or otherwise used across
program restarts, a monotonically nondecreasing clock (`Instant`) should be used. But as `Instant`
may use `libc::clock_gettime(CLOCK_MONOTONIC)`, e.g. on Android, and does not advance while being in
deep sleep mode, get rid of `Instant` in favor of using `SystemTime`, but add `tools::Time` as an
alias for it with the appropriate comment so that it's clear why `Instant` isn't used in those
places and to protect from unwanted usages of `Instant` in the future. Also this can help to switch
to another clock impl if we find any.
Restart the IO scheduler if needed to make the new config value effective (for `MvboxMove,
OnlyFetchMvbox, SentboxWatch` currently). Also add `set_config_internal()` which doesn't affect
running the IO scheduler. The reason is that `Scheduler::start()` itself calls `set_config()`,
although not for the mentioned keys, but still, and also Rust complains about recursive async calls.
Android calls get_connectivity_html()
every time connectivity changes, which in turn interrupts
IMAP loop and triggers change from "not connected" to "connecting"
state.
To avoid such infinite loop of IMAP interrupts when
there is not connectivity, update quota only when IMAP
loop is interrupted otherwise. This anyway happens
when a message is received or maybe_network is called.
Also remove outdated comments about `Action::UpdateRecentQuota` job
which does not exist anymore.
Message.set_text() and Message.get_text() are modified accordingly
to accept String and return String.
Messages which previously contained None text
are now represented as messages with empty text.
Use Message.set_text("".to_string())
instead of Message.set_text(None).
To handle backups the UIs have to make sure they do stop the IO
scheduler and also don't accidentally restart it while working on it.
Since they have to call start_io from a bunch of locations this can be
a bit difficult to manage.
This introduces a mechanism for the core to pause IO for some time,
which is used by the imex function. It interacts well with other
calls to dc_start_io() and dc_stop_io() making sure that when resumed
the scheduler will be running or not as the latest calls to them.
This was a little more invasive then hoped due to the scheduler. The
additional abstraction of the scheduler on the context seems a nice
improvement though.
IMAP capabilities and selected folder are IMAP session,
not IMAP client property.
Moving most operations into IMAP session structure
removes the need to constantly check whether IMAP session exists
and reduces number of invalid states, e.g. when a folder is selected but
there is no connection.
Capabilities are determined immediately after logging in,
so there is no need for `capabilities_determined` flag anymore.
Capabilities of the server are always known if there is a session.
`should_reconnect` flag and `disconnect()` function are removed: we
drop the session on error. Even though RFC 3501 says that a client
SHOULD NOT close the connection without a LOGOUT, it is more reliable
to always just drop the connection, especially after an error.
- Replace .ok_or_else() and .map_err() with anyhow::Context where possible.
- Use .context() to check Option for None when it's an error
- Resultify Chatlist.get_chat_id()
- Add useful .context() to some errors
- IMAP error handling cleanup
Also resultified `get_watched_folders`.
Python test `test_moved_markseen` is modified to test using incoming
message instead of BCC-self message, because BCC-self message is
detected immediately in the Inbox.
`indexmap` is a large dependency (4K SLoC) containing `unsafe` code.
Contact IDs are now passed around as a Vec<u32> or &[u32].
QUOTA roots are now sorted by name instead of perserving original order.
The problem was:
When opening the connectivity view while there is no network,
get_connectivity_html() calls schedule_quota_update(), which schedules a
UpdateRecentQuota job. But in update_recent_quota(), connecting fails
and a ConnectivityChanged event is emitted (connectivity changes from
Error to Connecting and back). Therefore the UI calls
get_connectivity_html() again, and the loop is complete.
This made the UI completely unresponsible. To reproduce, just turn wi-fi
off and open the connectivity view.
The fix is:
schedule_quota_update() now only schedules a new job if there is no old
job. To prevent the possible (though probably unlikely) problem that an
old quota update job has a backoff of, like, a day and therefore quota
is not updated, I reduced the backoff time for quota jobs to 10s.
Fixes possibly https://github.com/deltachat/deltachat-android/issues/2043, but we should "re-try" this
* let quota-warning reappear after import
an import removes all device-messages,
including the quota warning.
resetting `Config::QuotaExceeding` makes sure,
the warning reappears soon after import -
otherwise the warning would reappear only after
storage is cleaned up and exceeds again.
* a second quota warning when 95% storage exceeded
* factor out warning-check and add a test for that
* add missing stock strings for connectivity and quota
* reword quota error
* use 'Incoming/Outgoing Messages' instead of 'Inbox/Outbox'
* just say 'Not supported by your provider.' if quota cannot be read.
- the context is already given by the headline
'Storage on domain.org'
- the string is short and does not disturb much
(it is a very common error)
- the string does not mention 'quota' as such,
which will be hard to translate ('Kontingentsinformationen') -
even if ppl as we know about the Quota extensions an such things.
there was also the idea to hide the whole section,
however, that is confusing in a multi-device-usage
when things are sometimes shown and sometimes not.
* resultify update_recent_quota()
* add a device-message if quota exceeds QUOTA_WARN_THRESHOLD_PERCENTAGE
* check if a quota warning should be added during housekeeping, this is at least once a day
* dc_get_config("quota_exceeding") is useful for bots
* make clippy happy
* reword QuotaExceedingMsgBody message
* avoid lots of warnings if quota jitters around the warning threshold
* allow clippy::assertions_on_constants
these constants depend on each other, it makes sense to check that they are not changed in an incompatible way
* add imap::get_quota_roots()
* schedule quote-checking job on getting connectivity-html
* get quota and debug print it
* basic quota output
* update quota at most once per minute, emit event on changes
* use more meaningful names
* add some comments, move update_recent_quota() to quota.rs
* show root name only if there are several roots
* make clippy happy, some refactorings
* allow only one update-quota job per time
* add now supported QUOTA to standards.md
