that way, UI can just close the transfer dialog,
so that, at the end, both devices end in the chatlist.
we can also use this for troubleshooting -
if the device message is not present,
transfer did not succeed completely.
(a separate device message may be nice in that case -
but that is another effort,
same for making the device message reappear after deletion
or after some time)
Similarly to how `imex_inner()` runs migrations
after successful call to `import_backup()`,
migrations should be run after receiving a backup
using `transfer_from_provider()`.
* fix(imex): transfer::get_backup must always free ongoing process
When the ongoing process is cancelled it is still the responsibility
of whoever took out the ongoing process to free it. This code was
only freeing the ongoing process when completed normally but not when
cancelled.
* add changelog
This ensures that the BackupProvider will be stopped as soon as the
struct is dropped and the imex progress error event is emitted. This
makes it easier to use and also makes sure that the ffi call
dc_backup_provider_unref() does not lead to dangling resources.
This uses the new iroh API to connect to all provider addresses
concurrently. It simplifies the implementation as well as we no
longer need to try the addresses manually.
The fact that `PRAGMA incremental_vacuum` may return a zero-column
SQLITE_ROW result is documented in `sqlite3_data_count()` documentation:
<https://www.sqlite.org/c3ref/data_count.html>
Previously successful auto_vacuum worked,
but resulted in a "Failed to run incremental vacuum" log.
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>.
This way we can test some recently added config options that we don't want to expose in UI like
DeleteToTrash or SignUnencrypted. Note that persistent config options like DeleteToTrash should
remain anyway because they allow fine-grained (per-account) control. Having them matters for tests
also.
`<meta name="color-scheme" content="light dark" />` is a hint to the browsers
that the page can be rendered in light as well as in dark mode
and that the browser can apply corresponding defaults.
as we do not add css colors on our own,
this is sufficient for letting generated html messasge being rendered
in dark mode.
cmp. https://drafts.csswg.org/css-color-adjust/#color-scheme-propcloses#4146
standard footers meanwhile go the "contact status",
so they are no longer a reason to trigger "full message view".
this was already discussed when the HTML view was introduced at #2125
however, forgotten to change when the "contact status" was added at #2218
this pr will result in a cleaner chat view
with less "Show Full Message..." buttons
and will also save some storage
(in fact, i came over that when reviewing #4129 )
We are currently using libsqlite3-sys 0.25.2,
corresponding to SQLcipher 4.5.2
and SQLite 3.39.2.
SQLite supports ALTER TABLE DROP COLUMN since version 3.35.0,
and it has received critical database corruption bugfixes in 3.35.5.
There have been no fixes to it between SQLite 3.36.0 and 3.41.0,
so it appears stable now.
We do not make all transactions
[IMMEDIATE](https://www.sqlite.org/lang_transaction.html#deferred_immediate_and_exclusive_transactions)
for more parallelism -- at least read transactions can be made DEFERRED to run in parallel
w/o any drawbacks. But if we make write transactions DEFERRED also w/o any external locking,
then they are upgraded from read to write ones on the first write statement. This has some
drawbacks:
- If there are other write transactions, we block the thread and the db connection until
upgraded. Also if some reader comes then, it has to get next, less used connection with a
worse per-connection page cache.
- If a transaction is blocked for more than busy_timeout, it fails with SQLITE_BUSY.
- Configuring busy_timeout is not the best way to manage transaction timeouts, we would
prefer it to be integrated with Rust/tokio asyncs. Moreover, SQLite implements waiting
using sleeps.
- If upon a successful upgrade to a write transaction the db has been modified by another
one, the transaction has to be rolled back and retried. It is an extra work in terms of
CPU/battery.
- Maybe minor, but we lose some fairness in servicing write transactions, i.e. we service
them in the order of the first write statement, not in the order they come.
The only pro of making write transactions DEFERRED w/o the external locking is some
parallelism between them. Also we have an option to make write transactions IMMEDIATE, also
w/o the external locking. But then the most of cons above are still valid. Instead, if we
perform all write transactions under an async mutex, the only cons is losing some
parallelism for write transactions.
scripts/update-provider-database.sh checks out the provider database
and updates data.rs file,
making it easier to update.
CI uses this script to check that checked in data.rs
corresponds to the provider database repository.
