If `delete_device_after` is configured, that period should be counted for webxdc instances from the
last status update, otherwise nothing prevents from deleting them. Use `msgs.timestamp_rcvd` to
store the last status update timestamp, it anyway isn't used for anything except displaying a
detailed message info. Also, as `ephemeral::select_expired_messages()` now also checks
`timestamp_rcvd`, we have an improvement that a message is guaranteed not to be deleted for the
`delete_device_after` period since its receipt. Before only the sort timestamp was checked which is
derived from the "sent" timestamp.
When scheduler is destroyed, e.g. during a key import,
there is some time between destroying the interrupt channel
and the loop task.
To avoid busy looping, tasks should terminate if
receiving from the interrupt loop fails
instead of treating it as the interrupt.
Add a new crate `deltachat_time` with a fake `struct SystemTimeTools` for mocking
`SystemTime::now()` for test purposes. One still needs to use `std::time::SystemTime` as a struct
representing a system time. I think such a minimalistic approach is ok -- even if somebody uses the
original `SystemTime::now()` instead of the mock by mistake, that could break only tests but not the
program itself. The worst thing that can happen is that tests using `SystemTime::shift()` and
checking messages timestamps f.e. wouldn't catch the corresponding bugs, but now we don't have such
tests at all which is much worse.
I.e. from delete_msgs(). Otherwise messages must not be deleted from there, e.g. if a message is
ephemeral, but a network outage lasts longer than the ephemeral message timer, the message still
must be sent upon a successful reconnection.
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).
Specifying msg IDs that cannot be loaded in the event payload
results in an error when the UI tries to load the message.
Instead, emit an event without IDs
to make the UI reload the whole messagelist.
Moved custom ToSql trait including Send + Sync from lib.rs to sql.rs.
Replaced most params! and paramsv! macro usage with tuples.
Replaced paramsv! and params_iterv! with params_slice!,
because there is no need to construct a vector.
This further reduces the cognitive overload of having many ways to do
something. The same is very easily done using composition. Followup
from 82ace72527.
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.
With existing approach of constructing
the SQL query dynamically I get errors like this:
ephemeral.rs:575: update failed: too many SQL variables: Error code 1: SQL error or missing database
In my case it is trying to delete 143658 messages.
This is the result of importing a Desktop backup
and enabling device auto-deletion on the phone.
Current SQLite limit is 32766 variables
as stated in <https://www.sqlite.org/limits.html>.
Gmail archives messages marked as `\Deleted` by default if those messages aren't in the Trash. But
if move them to the Trash instead, they will be auto-deleted in 30 days.
get_chat_msgs() function is split into new get_chat_msgs() without flags
and get_chat_msgs_ex() which accepts booleans instead of bitflags.
FFI call dc_get_chat_msgs() is still using bitflags for compatibility.
JSON-RPC calls get_message_ids() and get_message_list_items()
accept booleans instead of bitflags now.
Instead of emitting single MsgsChanged event
with zero chat and msg IDs, emit one event per message.
Also emit WebxdcInstanceDeleted event if expired message
contains a webxdc.
"IMAP folder and UID information" is no longer stored
in the `msgs` table since creation of the `imap` table.
As a result `msgs` table entries do not contain UID information in the
first place.
This commit updates documentation to reflect this change and also
points to `prune_tombstones()` procedure which actually deletes `msgs`
rows.
* Do ephemeral deletion in background loop
1. in start_io start ephemeral async task, in stop_io cancel ephemeral async task
2. start ephemeral async task which loops like this:
- wait until next time a message deletion is needed or an interrupt occurs (see 3.)
- perform delete_expired_messages including sending MSGS_CHANGED events
3. on new messages (incoming or outgoing) with ephemeral timer:
- interrupt ephemeral async task
* Changelog
* Fix and improve test
* no return value needed
* address @link2xt review comments
* slight normalization: have only one place where we wait for interrupt_receiver
* simplify sql statement -- and don't exit the ephemeral_task if there is an sql problem but rather wait
* Remove now-unused `ephemeral_task` JoinHandle
The JoinHandle is now inside the Scheduler.
* fix clippy
* Revert accidental move of the line
* Add log
Co-authored-by: holger krekel <holger@merlinux.eu>
Co-authored-by: link2xt <link2xt@testrun.org>
This makes the contact ID its own newtype instead of being a plain
u32. The change purposefully does not yet try and reap any benefits
from this yet, instead aiming for a boring change that's easy to
review. Only exception is the ToSql/FromSql as not doing that yet
would also have created churn in the database code and it is easier to
go straight for the right solution here.
