commit 7f84da69f86ed9daf610c8d1129392ba3f7c4405
author Robert Greenwalt <rgreenwalt@google.com> Fri Sep 02 07:44:36 2011 -0700
committer Robert Greenwalt <rgreenwalt@google.com> Fri Sep 02 07:44:36 2011 -0700
tree dd1d2b0e5659065334bec7962b7d2a83de541824
parent 96e5faccdc5616bb6d4a55d50a0e6148f99d943b

Add some logging of dns cache operations

Added info about what entries are getting flushed due to ttl or size limits.

Change-Id: I69fb70ce23b5b820f5f1a5738c0f1aa57b6a1127

libc/netbsd/resolv/res_cache.c

diff --git a/libc/netbsd/resolv/res_cache.c b/libc/netbsd/resolv/res_cache.c
index e3ceb5a..e88c221 100644
--- a/libc/netbsd/resolv/res_cache.c
+++ b/libc/netbsd/resolv/res_cache.c
@@ -1405,6 +1405,10 @@
         XLOG("%s: OLDEST NOT IN HTABLE ?", __FUNCTION__);
         return;
     }
+    if (DEBUG) {
+        XLOG("Cache full - removing oldest");
+        XLOG_QUERY(oldest->query, oldest->querylen);
+    }
     _cache_remove_p(cache, lookup);
 }
 
@@ -1453,6 +1457,7 @@
     /* remove stale entries here */
     if (now >= e->expires) {
         XLOG( " NOT IN CACHE (STALE ENTRY %p DISCARDED)", *lookup );
+        XLOG_QUERY(e->query, e->querylen);
         _cache_remove_p(cache, lookup);
         goto Exit;
     }