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db: Extract db config lookup into its own function

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Signed-off-by: Christian Decker <decker.christian@gmail.com>
Suggested-by: Rusty Russell <@rustyrussell>
This commit is contained in:
Christian Decker 2019-09-04 12:38:03 +02:00 committed by Rusty Russell
parent c6b6958ae6
commit 58f448904c
1 changed files with 12 additions and 7 deletions
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19
wallet/db.c
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@ -647,6 +647,16 @@ static void setup_open_db(struct db *db)
db_report_changes(db, NULL, 0);
}
static struct db_config *db_config_find(const char *driver_name)
{
size_t num_configs;
struct db_config **configs = autodata_get(db_backends, &num_configs);
for (size_t i=0; i<num_configs; i++)
if (streq(driver_name, configs[i]->name))
return configs[i];
return NULL;
}
/**
* db_open - Open or create a sqlite3 database
*/
@ -655,8 +665,6 @@ static struct db *db_open(const tal_t *ctx, char *filename)
int err;
struct db *db;
sqlite3 *sql;
size_t num_configs;
struct db_config **configs = autodata_get(db_backends, &num_configs);
const char *driver_name = "sqlite3";
int flags = SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE;
@ -670,13 +678,10 @@ static struct db *db_open(const tal_t *ctx, char *filename)
db = tal(ctx, struct db);
db->filename = tal_strdup(db, filename);
db->sql = sql;
db->config = NULL;
list_head_init(&db->pending_statements);
for (size_t i=0; i<num_configs; i++)
if (streq(driver_name, configs[i]->name)) {
db->config = configs[i];
break;
}
db->config = db_config_find(driver_name);
if (!db->config)
db_fatal("Unable to find DB driver for %s", driver_name);