set: add timeout support for sets

Timeout support can be enabled in one of two ways:

1. Using a default timeout value:

set test {
	type ipv4_addr;
	timeout 1h;
}

2. Using the timeout flag without a default:

set test {
	type ipv4_addr;
	flags timeout;
}

Optionally a garbage collection interval can be specified using

gc-interval <interval>;

Signed-off-by: Patrick McHardy <kaber@trash.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/evaluate.c b/src/evaluate.c
index 37db107b..04ca08df 100644
--- a/src/evaluate.c
+++ b/src/evaluate.c
@@ -1737,6 +1737,10 @@ static int set_evaluate(struct eval_ctx *ctx, struct set *set)
 			return -1;
 	}
 
+	/* Default timeout value implies timeout support */
+	if (set->timeout)
+		set->flags |= SET_F_TIMEOUT;
+
 	if (!(set->flags & SET_F_MAP))
 		return 0;