layer/rrsigcache: RRSIG caching (writes) enabled.

daemon/engine.c

@@ -219,6 +219,7 @@ static int init_resolver(struct engine *engine)
 	/* Load basic modules */
 	engine_register(engine, "iterate");
 	engine_register(engine, "rrcache");
+	engine_register(engine, "rrsigcache");
 	engine_register(engine, "pktcache");
 
 	/* Initialize storage backends */

lib/lib.mk

@@ -9,6 +9,7 @@ libkres_SOURCES := \
 	lib/generic/map.c      \
 	lib/layer/iterate.c    \
 	lib/layer/rrcache.c    \
+	lib/layer/rrsigcache.c \
 	lib/layer/pktcache.c   \
 	lib/utils.c            \
 	lib/nsrep.c            \

lib/module.c

@@ -26,10 +26,12 @@
 /* List of embedded modules */
 const knot_layer_api_t *iterate_layer(struct kr_module *module);
 const knot_layer_api_t *rrcache_layer(struct kr_module *module);
+const knot_layer_api_t *rrsigcache_layer(struct kr_module *module);
 const knot_layer_api_t *pktcache_layer(struct kr_module *module);
 static const struct kr_module embedded_modules[] = {
 	{ "iterate",  NULL, NULL, NULL, iterate_layer, NULL, NULL, NULL },
 	{ "rrcache",  NULL, NULL, NULL, rrcache_layer, NULL, NULL, NULL },
+	{ "rrsigcache", NULL, NULL, NULL, rrsigcache_layer, NULL, NULL, NULL },
 	{ "pktcache", NULL, NULL, NULL, pktcache_layer, NULL, NULL, NULL },
 };