Ensure the Arc<RefCell<Buffer>> in UringFile::pwrite remains alive until
the io_uring write completes by referencing it in the completion callback.
This prevents WAL file corruption where the correct buffer data was
overwritten with stale memory (e.g., 00 18 27 xx instead of 37 7f 06 82).
Validation:
- Tested with limbo -v io_uring and WAL operations.
- Verified with xxd and wal-browser.
Signed-off-by: Daniel Boll <danielboll.academico@gmail.com>
I keep having 3+ PR's in at the same time and always deal with crazy
conflicts because everything in the `ext` library is together in one
file.
This PR moves each category of extension into its own file, and
separates the `vfs` functionality in Core into the `ext/dynamic` module,
so that it can be more easily separated from wasm (or non feature =
"fs") targets to prevent build issues.
The only semantic changes made in this PR is the feature gating of vfs,
the rest is simply organizing and cleaning up imports.
Was unsure if `vfs` should be a feature on the `core` side too, or to
just enable it with the `fs` feature which seemed reasonable, as that
was already the current behavior. But let me know if we want it entirely
behind it's own feature.
Reviewed-by: Pere Diaz Bou <pere-altea@homail.com>
Closes#1124
Added jsonb_remove, jsonb_replace, json_replace.
Updated json_remove to use jsonb under the hood.
Fixed json function big numbers serialization.
Add tests for new functions.
Closes#1140
Made a jsonb traversal by json path.
Changed some ordinary json functions to use jsonb under the hood, so now
behavior of our json module more like sqlite.
Found and fixed some bugs on the way.
Closes#1135
As explained in [docs](https://sqlite.org/lang_transaction.html):
> "DEFERRED means that the transaction does not actually start until the
database is first accessed. Internally, the BEGIN DEFERRED statement
merely sets a flag on the database connection that turns off the
automatic commit that would normally occur when the last statement
finishes. This causes the transaction that is automatically started to
persist until an explicit COMMIT or ROLLBACK or until a rollback is
provoked by an error or an ON CONFLICT ROLLBACK clause. If the first
statement after BEGIN DEFERRED is a SELECT, then a read transaction is
started. Subsequent write statements will upgrade the transaction to a
write transaction if possible, or return SQLITE_BUSY. If the first
statement after BEGIN DEFERRED is a write statement, then a write
transaction is started. "
The transaction upgrade `read -> write` is already handled by the VDBE
in `Transaction`.
closes#1001
Reviewed-by: Pere Diaz Bou <pere-altea@homail.com>
Closes#1133
As explained in docs: https://sqlite.org/lang_transaction.html
"BEGIN DEFERRED statement merely sets a flag on the database connection that turns off the automatic commit that would normally occur when the last statement finishes."
The transaction upgrade (read -> write) is already handled by the VDBE
IDK if I'm being naive here but it was the easiest way that I found to
handle it.
closes#1004
Reviewed-by: Pere Diaz Bou <pere-altea@homail.com>
Closes#1129
Added bench to see how far i am from SQLite. If ~~Cloude~~ I did benches
correct moving from iterator to slice and cursor gives crazy performance
bump where we are almost on par with SLQLite when we are not talking
about huge jsons, but i suspect SQLite do some trickery there.
Closes#1125
