CACHE: Cache only non-cached karas with the caching thread

inc/lektor/database.h

@@ -65,7 +65,7 @@ bool database_get_kara_mtime_path   (volatile sqlite3 *db, char filepath[PATH_MA
 bool database_get_kara_duration_path(volatile sqlite3 *db, char filepath[PATH_MAX], uint64_t *duration);
 void database_cache_kara            (volatile sqlite3 *db, int id);
 
-void database_get_all_kara(volatile sqlite3 *db, int **ret_ids, size_t *ret_ids_len);
+void database_get_all_non_cached_kara(volatile sqlite3 *db, int **ret_ids, size_t *ret_ids_len);
 
 /* Update the database. */
 bool database_update              (volatile sqlite3 *db, const char *kara_dir, int check_timestamp);

src/base/launch.c

@@ -180,14 +180,20 @@ ___caching_walker(void *args)
     size_t ids_count     = 0;
     int *ids             = NULL;
 
-    database_get_all_kara(db, &ids, &ids_count);
+    database_get_all_non_cached_kara(db, &ids, &ids_count);
     if (ids == NULL || ids_count == 0) {
         LOG_ERROR("CACHING", "No kara present in the database, exit caching thread");
         return NULL;
     }
 
-    free(ids);
+    LOG_INFO("CACHE", "Begin to cache %ld karas", ids_count);
+
+    for (size_t index = 0; index < ids_count; ++index) {
+        database_cache_kara(db, ids[index]);
+    }
 
+    LOG_INFO("CACHE", "Finished caching %ld karas", ids_count);
+    free(ids);
     return NULL;
 }
 

src/database/find.c

@@ -399,10 +399,10 @@ error:
 }
 
 void
-database_get_all_kara(volatile sqlite3 *db, int **ret_ids, size_t *ret_ids_len)
+database_get_all_non_cached_kara(volatile sqlite3 *db, int **ret_ids, size_t *ret_ids_len)
 {
-    static const char *SQL_DATA  = "SELECT id FROM kara;";
-    static const char *SQL_COUNT = "SELECT count(id) FROM kara;";
+    static const char *SQL_DATA  = "SELECT id FROM kara WHERE cached_mtime = 0 OR cached_duration = 0;";
+    static const char *SQL_COUNT = "SELECT count(id) FROM kara WHERE cached_mtime = 0 OR cached_duration = 0;";
     sqlite3_stmt *stmt           = NULL;
     size_t index                 = 0;