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Changes to settings.c db queries 

Sort of experimental. No harm but perhaps not an improvement.
This commit is contained in:
Linus Probert 2018-05-05 20:59:53 +02:00
parent f290a0dc1c
commit 677a7d8b69
1 changed files with 24 additions and 8 deletions
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32
src/settings.c
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@ -32,6 +32,20 @@ static Settings settings;
static const char *KEY_MUSIC_ENABLED = "music_enabled";
static const char *KEY_SOUND_ENABLED = "sound_enabled";
typedef struct db_query {
char *stmt;
int (*cb)(void*, int, char**, char**);
void *cb_arg;
} db_query;
db_query MIGRATE_COMMANDS[] = {
{ "CREATE TABLE IF NOT EXISTS settings_int(key TEXT PRIMARY KEY, value INTEGER)", NULL, NULL },
{ NULL, NULL, NULL } // Sentinel
};
static int load_settings_cb(void *unused, int count, char **values, char **colNames);
db_query LOAD_SETTINGS = { "SELECT * FROM settings_int", load_settings_cb, NULL };
static void
set_default_settings(void)
{
@ -40,11 +54,9 @@ set_default_settings(void)
}
static void
execute_statement(const char *stmt,
int(*cb)(void*, int, char**, char**),
void *cb_arg)
execute_statement(db_query *query)
{
if (!db_execute_stmnt(stmt, db, cb, cb_arg)) {
if (!db_execute_stmnt(query->stmt, db, query->cb, query->cb_arg)) {
db_close(&db);
fatal("Exiting");
}
@ -53,9 +65,13 @@ execute_statement(const char *stmt,
static void
create_tables(void)
{
execute_statement("CREATE TABLE IF NOT EXISTS settings_int(key TEXT PRIMARY KEY, value INTEGER)",
NULL,
NULL);
for (unsigned int i = 0;; ++i) {
db_query *query = &MIGRATE_COMMANDS[i];
if (query->stmt == NULL)
break;
execute_statement(query);
}
}
static int
@ -84,7 +100,7 @@ load_settings_cb(void *unused, int count, char **values, char **colNames)
static void
load_settings(void)
{
execute_statement("SELECT * FROM settings_int", load_settings_cb, NULL);
execute_statement(&LOAD_SETTINGS);
}
void