Rework cache API slightly

src/libstat/learn_cache/learn_cache.h

@@ -45,12 +45,10 @@ struct rspamd_stat_cache {
 			gpointer ctx, gboolean learn);
 	gint (*check)(struct rspamd_task *task,
 			gboolean is_spam,
-			gpointer runtime,
-			gpointer ctx);
+			gpointer runtime);
 	gint (*learn)(struct rspamd_task *task,
 			gboolean is_spam,
-			gpointer runtime,
-			gpointer ctx);
+			gpointer runtime);
 	void (*close) (gpointer ctx);
 	gpointer ctx;
 };
@@ -64,12 +62,10 @@ struct rspamd_stat_cache {
 				gpointer ctx, gboolean learn); \
 		gint rspamd_stat_cache_##name##_check (struct rspamd_task *task, \
 				gboolean is_spam, \
-				gpointer runtime, \
-				gpointer ctx); \
+				gpointer runtime); \
 		gint rspamd_stat_cache_##name##_learn (struct rspamd_task *task, \
 				gboolean is_spam, \
-				gpointer runtime, \
-				gpointer ctx); \
+				gpointer runtime); \
 		void rspamd_stat_cache_##name##_close (gpointer ctx)
 
 RSPAMD_STAT_CACHE_DEF(sqlite3);

src/libstat/learn_cache/redis_cache.c

@@ -306,8 +306,7 @@ rspamd_stat_cache_redis_runtime (struct rspamd_task *task,
 gint
 rspamd_stat_cache_redis_check (struct rspamd_task *task,
 		gboolean is_spam,
-		gpointer runtime,
-		gpointer c)
+		gpointer runtime)
 {
 	struct rspamd_redis_cache_runtime *rt = runtime;
 	struct timeval tv;
@@ -333,8 +332,7 @@ rspamd_stat_cache_redis_check (struct rspamd_task *task,
 gint
 rspamd_stat_cache_redis_learn (struct rspamd_task *task,
 		gboolean is_spam,
-		gpointer runtime,
-		gpointer c)
+		gpointer runtime)
 {
 	struct rspamd_redis_cache_runtime *rt = runtime;
 	struct timeval tv;

src/libstat/learn_cache/sqlite3_cache.c

@@ -174,16 +174,15 @@ rspamd_stat_cache_sqlite3_runtime (struct rspamd_task *task,
 				gpointer ctx, gboolean learn)
 {
 	/* No need of runtime for this type of classifier */
-	return NULL;
+	return ctx;
 }
 
 gint
 rspamd_stat_cache_sqlite3_check (struct rspamd_task *task,
 		gboolean is_spam,
-		gpointer runtime,
-		gpointer c)
+		gpointer runtime)
 {
-	struct rspamd_stat_sqlite3_ctx *ctx = (struct rspamd_stat_sqlite3_ctx *)c;
+	struct rspamd_stat_sqlite3_ctx *ctx = runtime;
 	struct mime_text_part *part;
 	rspamd_cryptobox_hash_state_t st;
 	rspamd_ftok_t *word;
@@ -243,10 +242,9 @@ rspamd_stat_cache_sqlite3_check (struct rspamd_task *task,
 gint
 rspamd_stat_cache_sqlite3_learn (struct rspamd_task *task,
 		gboolean is_spam,
-		gpointer runtime,
-		gpointer c)
+		gpointer runtime)
 {
-	struct rspamd_stat_sqlite3_ctx *ctx = (struct rspamd_stat_sqlite3_ctx *)c;
+	struct rspamd_stat_sqlite3_ctx *ctx = runtime;
 	gboolean unlearn = !!(task->flags & RSPAMD_TASK_FLAG_UNLEARN);
 	guchar *h;
 	gint64 flag;

src/libstat/stat_process.c

@@ -391,8 +391,7 @@ rspamd_stat_cache_check (struct rspamd_stat_ctx *st_ctx,
 
 		if (cl->cache && cl->cachecf) {
 			rt = cl->cache->runtime (task, cl->cachecf, FALSE);
-			learn_res = cl->cache->check (task, spam,
-					cl->cachecf, rt);
+			learn_res = cl->cache->check (task, spam, rt);
 		}
 
 		if (learn_res == RSPAMD_LEARN_INGORE) {
@@ -576,7 +575,7 @@ rspamd_stat_backends_post_learn (struct rspamd_stat_ctx *st_ctx,
 
 		if (cl->cache) {
 			cache_run = cl->cache->runtime (task, cl->cachecf, TRUE);
-			cl->cache->learn (task, spam, cache_run, cl->cachecf);
+			cl->cache->learn (task, spam, cache_run);
 		}
 
 		for (j = 0; j < cl->statfiles_ids->len; j ++) {