Introduce a new function called have_tap_listener(int tap_id) to

tell if a specific tap id is currently listening for data.
This complements the function have_tap_listeners(), which checks
to see if any tap is currently listening.


svn path=/trunk/; revision=20979

1 files changed, 16 insertions, 0 deletions

diff --git a/epan/tap.c b/epan/tap.c
index ada6275a2d..c57196b33b 100644
--- a/epan/tap.c
+++ b/epan/tap.c
@@ -460,3 +460,19 @@ have_tap_listeners(void)
 {
 	return tap_listener_queue != NULL;
 }
+
+/* Returns TRUE there is an active tap listener for the specified tap id. */
+gboolean
+have_tap_listener(int tap_id)
+{
+	volatile tap_listener_t *tap_queue = tap_listener_queue;
+
+	while(tap_queue) {
+		if(tap_queue->tap_id == tap_id)
+			return TRUE;
+
+		tap_queue = tap_queue->next;
+	}
+
+	return FALSE;
+}