* a task that is marked woken but didn't actually wake before being cancelled will instead wake the next task in the queue
* a task that wakes but doesn't get a connection will put itself back in the queue instead of waiting until it times out with no way to be woken
* the idle reaper now won't run if there are tasks waiting for a connection, and also uses
the proper `SharedPool::release()` to return validated connections to the pool so waiting tasks get woken
closes#622, #1210
(hopefully for good this time)
Signed-off-by: Austin Bonander <austin@launchbadge.com>
Unlike `Executor.fetch_optional()`, `Executor.fetch_many()` does not
have a single exit. The stream can be dropped at any time. To catch
this event, we create a `StatementResetter` structure inside the stream
loop and reset the statement when it is dropped.
A test case `it_resets_prepared_statement_after_fetch_many` is
similar to `it_resets_prepared_statement_after_fetch_one` which tests
`Executor.fetch_optional()`.
* fix `DecrementSizeGuard::drop()` only waking one `Waiter` regardless of whether that waiter was already woken
* fix connect-backoff loop giving up the size guard
* don't cut in line to open a new connection
* have tasks waiting on `acquire()` wake periodically to check if there's a connection in the queue
Signed-off-by: Austin Bonander <austin@launchbadge.com>
Fix commit updates the `postgres::connection::describe` module to add full support for domain types. Domain types were previously confused with their category which caused invalid oid resolution.
Fixeslaunchbadge/sqlx#110
BREAKING CHANGE: some columns in `query!()` et. al. output will change from `T` to `Option<T>`
breakage should be minimal in practice as
these columns will need to have been manually
overridden anyway to avoid runtime errors
Signed-off-by: Austin Bonander <austin@launchbadge.com>
