This fixes subtle bugs with transaction inheritence. Since we were not
passing the inherited state to moved value, we were sometimes committing
transactions more than once.
Changelog-Fixed: Fix many nostrdb transaction related crashes
This is a potential fix for some of the crash reports that have been
streaming in. They all seem to be crashing within ndb_close_txn. I
suspect this means that the transactions are trying to get closed when
ndb is already closed. Closing Ndb will close the transactions
automatically, so it looks like we might be trying to close twice.
This was causing crashing and corruption issues. This should have been
handled by the garbage collector, but for some reason old references
still hang around.
Add a "close" method to DamusState which disconnects from relays and
closes nostrdb.
Changelog-Fixed: Fix crash when logging out and switching accounts
Changelog-Fixed: Fix persistent local notifications even after logout
Signed-off-by: William Casarin <jb55@jb55.com>
It's never safe to return an unsafeUnownedValue
Fixes: c4f0e833ff ("Reuse local notification logic with push notifications")
Cc: Daniel DAquino <daniel@daquino.me>
Signed-off-by: William Casarin <jb55@jb55.com>
Since there may be situations where we close and re-open the database,
we need to make sure transactions fail when the database is not open.
Make NdbTxn an init?() constructor and check for ndb.closed. If it's
closed, then fail transaction construction.
This fixes crashes during high database activity when switching from
background to foreground and vice-versa.
Fixes: da2bdad18d ("nostrdb: close database when backgrounded")
I realized we didn't have this in the contributor docs. Noone will read
it, but at least we'll have something to point to for future contributors.
Cc: kernelkind <kernelkind@gmail.com>
Signed-off-by: William Casarin <jb55@jb55.com>
Otherwise iOS gets mad because we are holding onto a lockfile in a
shared container which is apparently not allowed.
Fixes: a1e6be214e ("Migrate NostrDB files to shared app group file container")
When you are searching for results, don't wipe the current result set if
there are some previous results and the current query is returning 0
results. This is pretty common when you start typing, it's weird for the
results to randomly clear when looking for stuff.
I'm noticing duplicate notes in the database, which might happen when
the ingester and writer get spammed with the same note rapidly. Add a
sanity check during the write so that we only ever write a note once.
Fixes: 1cf898e0b2 ("ndb: update nostrdb")
Changelog-Fixed: Fix duplicate notes getting written to nostrdb
Signed-off-by: William Casarin <jb55@jb55.com>
Many different parts of the codebase could be opening transactions when
somewhere higher in the heirarchy on the main thread might already have
an active transaction. This can lead to failed transaction opening which
is bad.
Instead of relying on passing down the transaction to subviews, lets
keep track of the active transactions in a thread-local dictionary. That
way whenever we create a new transaction we can inherit the one that is
already active in the current thread.
Inherited transactions don't end the query when they are garbage
collected, we still expect the first-opened query to do this.
Due to the way the range queries work for newest-first searches, we can
have a situation where the MDB_SET_RANGE gets placed on either the
correct place or just after the correct place. To position the cursor
correctly, we jump back one if the search result prefix doesn't match.
Signed-off-by: William Casarin <jb55@jb55.com>
This allows users of nostrdb to selectively filter notes of any kind during
ingest.
Contact lists too big? Create a filter to reject them.
You only care about notes with specific kinds? Reject everything else.
Damus will use this for rejecting large events that might take up too
much space for storage, such as contact lists.
This commit also switched to ndb_config for configuring nostrdb, because
the arguments to ndb_init were getting out of hand.
Changelog-Added: Added ingest filter setting
Changelog-Changed: Switch to ndb_config for per-session ndb settings
Signed-off-by: William Casarin <jb55@jb55.com>
This changes the search algorithm to be much smarter and more efficient
at searching phrases.
It is also much simpler, using less intermediate data structures.
Signed-off-by: William Casarin <jb55@jb55.com>
Our word parser gets stuck on some notes with utf8 chars. Make sure we
are always advancing so we don't get stuck.
Signed-off-by: William Casarin <jb55@jb55.com>
This patch sets the stage for phrase searching. It collects data into
result sets based on words and the word's associated key. We can use
this data to select the best search results based on adjacent
word_indices.
Signed-off-by: William Casarin <jb55@jb55.com>
William Casarin