Add reaper functions to want events APIs (VPP-1304)

Change-Id: Iaeb52d94cb6da63ee93af7c1cf2dade6046cba1d
Signed-off-by: Neale Ranns <nranns@cisco.com>

2 files changed, 43 insertions, 32 deletions

diff --git a/src/plugins/igmp/igmp.h b/src/plugins/igmp/igmp.h
index f917be95dc3..fc131f7843b 100644
--- a/src/plugins/igmp/igmp.h
+++ b/src/plugins/igmp/igmp.h
@@ -20,6 +20,7 @@
 
 #include <vlib/vlib.h>
 #include <vnet/ip/ip.h>
+#include <vlibapi/api_helper_macros.h>
 #include <vnet/ip/igmp_packet.h>
 #include <vnet/adj/adj_mcast.h>
 #include <igmp/igmp_format.h>
@@ -167,16 +168,6 @@ struct igmp_timer_t_;
 
 typedef struct igmp_timer_t_ igmp_timer_t;
 
-/** \brief igmp api client
-    @param client_index - client index
-    @param pid - pid
-*/
-typedef struct igmp_api_client_t_
-{
-  u32 client_index;
-  u32 pid;
-} igmp_api_client_t;
-
 typedef struct
 {
   u8 *name;
@@ -210,7 +201,7 @@ typedef struct igmp_main_t_
 
   uword *igmp_api_client_by_client_index;
 
-  igmp_api_client_t *api_clients;
+  vpe_client_registration_t *api_clients;
 
   uword *igmp_config_by_sw_if_index;
 
@@ -459,23 +450,6 @@ igmp_src_lookup (igmp_group_t * group, igmp_key_t * key)
   return src;
 }
 
-/** \brief igmp group lookup
-    @param im - igmp main
-    @param client_index - client index
-*/
-always_inline igmp_api_client_t *
-igmp_api_client_lookup (igmp_main_t * im, u32 client_index)
-{
-  uword *p;
-  igmp_api_client_t *api_client = NULL;
-
-  p = hash_get_mem (im->igmp_api_client_by_client_index, &client_index);
-  if (p)
-    api_client = vec_elt_at_index (im->api_clients, p[0]);
-
-  return api_client;
-}
-
 #endif /* _IGMP_H_ */
 
 /*
diff --git a/src/plugins/igmp/igmp_api.c b/src/plugins/igmp/igmp_api.c
index 7044e7f8c76..164779c3e5a 100644
--- a/src/plugins/igmp/igmp_api.c
+++ b/src/plugins/igmp/igmp_api.c
@@ -194,11 +194,28 @@ vl_api_igmp_clear_interface_t_handler (vl_api_igmp_clear_interface_t * mp)
   vl_msg_api_send_shmem (q, (u8 *) & rmp);
 }
 
+/** \brief igmp group lookup
+    @param im - igmp main
+    @param client_index - client index
+*/
+static vpe_client_registration_t *
+igmp_api_client_lookup (igmp_main_t * im, u32 client_index)
+{
+  uword *p;
+  vpe_client_registration_t *api_client = NULL;
+
+  p = hash_get_mem (im->igmp_api_client_by_client_index, &client_index);
+  if (p)
+    api_client = vec_elt_at_index (im->api_clients, p[0]);
+
+  return api_client;
+}
+
 static void
 vl_api_want_igmp_events_t_handler (vl_api_want_igmp_events_t * mp)
 {
   igmp_main_t *im = &igmp_main;
-  igmp_api_client_t *api_client;
+  vpe_client_registration_t *api_client;
   vl_api_want_igmp_events_reply_t *rmp;
   int rv = 0;
 
@@ -218,9 +235,9 @@ vl_api_want_igmp_events_t_handler (vl_api_want_igmp_events_t * mp)
   if (mp->enable)
     {
       pool_get (im->api_clients, api_client);
-      memset (api_client, 0, sizeof (igmp_api_client_t));
+      memset (api_client, 0, sizeof (vpe_client_registration_t));
       api_client->client_index = mp->client_index;
-      api_client->pid = mp->pid;
+      api_client->client_pid = mp->pid;
       hash_set_mem (im->igmp_api_client_by_client_index,
 		    &mp->client_index, api_client - im->api_clients);
       goto done;
@@ -241,6 +258,26 @@ done:;
   vl_msg_api_send_shmem (q, (u8 *) & rmp);
 }
 
+static clib_error_t *
+want_igmp_events_reaper (u32 client_index)
+{
+  igmp_main_t *im = &igmp_main;
+  vpe_client_registration_t *api_client;
+  uword *p;
+
+  p = hash_get_mem (im->igmp_api_client_by_client_index, &client_index);
+
+  if (p)
+    {
+      api_client = pool_elt_at_index (im->api_clients, p[0]);
+      pool_put (im->api_clients, api_client);
+      hash_unset_mem (im->igmp_api_client_by_client_index, &client_index);
+    }
+  return (NULL);
+}
+
+VL_MSG_API_REAPER_FUNCTION (want_igmp_events_reaper);
+
 void
 send_igmp_event (unix_shared_memory_queue_t * q, u32 context,
 		 igmp_main_t * im, igmp_config_t * config,
@@ -264,7 +301,7 @@ void
 igmp_event (igmp_main_t * im, igmp_config_t * config, igmp_group_t * group,
 	    igmp_src_t * src)
 {
-  igmp_api_client_t *api_client;
+  vpe_client_registration_t *api_client;
   unix_shared_memory_queue_t *q;
   /* *INDENT-OFF* */
   pool_foreach (api_client, im->api_clients,