Commit Graph

10 Commits

Author SHA1 Message Date
Christian Decker
e2f7c86271 db: Move remainder of the sqlite3 into the apropriate file
We used to do some of the setup work in db.c, which is now free of any
sqlite3-specific code. In addition we also switch over to fully qualified DSNs
to specify the location of the wallet.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2019-09-22 02:03:43 +00:00
Christian Decker
ac1c894255 db: Get old sqlite3_trace based db_changes working again
Seems I accidentally broke the fallback mechanism while working on the DB
abstraction.
2019-09-18 18:35:11 +02:00
Christian Decker
742bcdb2bc db: Move statement expansion into the driver
It's better to let the driver decide when and how to expand. It can then
report the expanded statement back to the dispatch through the
`db_changes_add` function.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2019-09-05 23:41:05 +00:00
Christian Decker
460299850f db: Add DB-specific db_last_insert_id
This is likely the last part we need to completely encapsulate the part of the
sqlite3 API that we were using. Like the `db_count_changes` call I decided to
pass in the `struct db_stmt` since really they refer to the statement that was
executed and not the db.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2019-09-05 23:41:05 +00:00
Christian Decker
492d77f213 db: Add setup and teardown function to DB
These are used to do one-time initializations and wait for pending statements
before closing.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2019-09-05 23:41:05 +00:00
Christian Decker
a2b5b1561e db: Add method to count changed rows of a db_stmt
I was hoping to get rid of these by using "ON CONFLICT" upserts, however
sqlite3 only started supporting them in version 3.24.0 which is newer than
some of our deployment targets.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2019-09-05 23:41:05 +00:00
Christian Decker
d0027b1036 db: Implement basic query capabilities
This is the first step towards being able to extract information from query
rows. Only the most basic types are exposed, the others will be built on top
of these primitives.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2019-09-05 23:41:05 +00:00
Christian Decker
e65e4fcf4b wallet: Call db_stmt_free from the db_stmt destructor automatically
This is much more in line with the rest of our memory management.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2019-09-05 23:41:05 +00:00
Christian Decker
50a1af8908 db: Implement the sqlite3 driver
This is the DB-specific counterpart to the previous commit.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2019-09-05 23:41:05 +00:00
Christian Decker
e4ab98459c wallet: Add tooling to extract SQL queries and generate driver info
This is the counterpart of the annotations we did in the last few commits. It
extracts queries, passes them through a driver-specific query rewriter and
dumps them into a driver-specific query-list, along with some metadata to
facilitate processing later on. The generated query list is then registered as
a `db_config` and will be loaded by the driver upon instantiation.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2019-09-05 23:41:05 +00:00