src: add cache infrastructure and use it for table objects

This patch introduces the generic object cache that is populated during the
evaluation phase.

The first client of this infrastructure are table objects. As a result, there
is a single call to netlink_list_tables().

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/evaluate.c b/src/evaluate.c
index 0bf4fecb..018d1b98 100644
--- a/src/evaluate.c
+++ b/src/evaluate.c
@@ -2005,6 +2005,12 @@ static int cmd_evaluate_monitor(struct eval_ctx *ctx, struct cmd *cmd)
 
 int cmd_evaluate(struct eval_ctx *ctx, struct cmd *cmd)
 {
+	int ret;
+
+	ret = cache_update(cmd->op, ctx->msgs);
+	if (ret < 0)
+		return ret;
+
 #ifdef DEBUG
 	if (debug_level & DEBUG_EVALUATION) {
 		struct error_record *erec;