api: call api reaper callbacks for socket clients

Add a callback to clear the per-client packet trace buffer cache.

Save the packet trace dump pg setup script.

Type: improvement
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I252be911b5f937ece0da5dca152263ece3d52963
diff --git a/src/vlibmemory/socket_api.c b/src/vlibmemory/socket_api.c
index 6238746..566305f 100644
--- a/src/vlibmemory/socket_api.c
+++ b/src/vlibmemory/socket_api.c
@@ -170,6 +170,8 @@
 {
   int i;
   vl_api_registration_t *rp;
+  void vl_api_call_reaper_functions (u32 client_index);
+
   if (pool_is_free_index (socket_main.registration_pool, pool_index))
     {
       clib_warning ("main pool index %d already free", pool_index);
@@ -177,6 +179,8 @@
     }
   rp = pool_elt_at_index (socket_main.registration_pool, pool_index);
 
+  vl_api_call_reaper_functions (pool_index);
+
   ASSERT (rp->registration_type != REGISTRATION_TYPE_FREE);
   for (i = 0; i < vec_len (rp->additional_fds_to_close); i++)
     if (close (rp->additional_fds_to_close[i]) < 0)