From fd2d69bb236039065a221ba8c85982df2438ccee Mon Sep 17 00:00:00 2001
From: Bert Hubert <bert.hubert@netherlabs.nl>
Date: Sat, 11 Sep 2010 13:41:02 +0000
Subject: [PATCH] make rec_control dump-cache also dump the negative cache, so
 we can see what is going on

git-svn-id: svn://svn.powerdns.com/pdns/trunk/pdns@1713 d19b8d6e-7fed-0310-83ef-9ca221ded41b
---
 pdns/rec_channel_rec.cc | 24 +++++++++++++++++++++++-
 pdns/recursor_cache.cc  |  2 +-
 pdns/syncres.cc         |  1 -
 3 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/pdns/rec_channel_rec.cc b/pdns/rec_channel_rec.cc
index aa579cc51..077e4ab3d 100644
--- a/pdns/rec_channel_rec.cc
+++ b/pdns/rec_channel_rec.cc
@@ -110,9 +110,31 @@ string doGetParameter(T begin, T end)
 }
 
 
+static uint64_t dumpNegCache(SyncRes::negcache_t& negcache, int fd)
+{
+  FILE* fp=fdopen(dup(fd), "w");
+  if(!fp) { // dup probably failed
+    return 0;
+  }
+  fprintf(fp, "; negcache dump from thread follows\n;\n");
+  time_t now = time(0);
+  
+  typedef SyncRes::negcache_t::nth_index<1>::type sequence_t;
+  sequence_t& sidx=negcache.get<1>();
+
+  uint64_t count=0;
+  BOOST_FOREACH(const NegCacheEntry& neg, sidx)
+  {
+    ++count;
+    fprintf(fp, "%s IN %s %d VIA %s\n", neg.d_name.c_str(), neg.d_qtype.getName().c_str(), (unsigned int) (neg.d_ttd - now), neg.d_qname.c_str());
+  }
+  fclose(fp);
+  return count;
+}
+
 static uint64_t* pleaseDump(int fd)
 {
-  return new uint64_t(t_RC->doDump(fd));
+  return new uint64_t(t_RC->doDump(fd) + dumpNegCache(t_sstorage->negcache, fd));
 }
 
 template<typename T>
diff --git a/pdns/recursor_cache.cc b/pdns/recursor_cache.cc
index ff7114289..7945ebc0a 100644
--- a/pdns/recursor_cache.cc
+++ b/pdns/recursor_cache.cc
@@ -327,7 +327,7 @@ uint64_t MemRecursorCache::doDump(int fd)
   if(!fp) { // dup probably failed
     return 0;
   }
-  fprintf(fp, "; dump from thread follows\n;\n");
+  fprintf(fp, "; main record cache dump from thread follows\n;\n");
   typedef cache_t::nth_index<1>::type sequence_t;
   sequence_t& sidx=d_cache.get<1>();
 
diff --git a/pdns/syncres.cc b/pdns/syncres.cc
index 22dd54433..4b05acfc5 100644
--- a/pdns/syncres.cc
+++ b/pdns/syncres.cc
@@ -662,7 +662,6 @@ bool SyncRes::doCacheCheck(const string &qname, const QType &qtype, vector<DNSRe
     }
   }
 
-
   set<DNSResourceRecord> cset;
   bool found=false, expired=false;
 
-- 
2.40.0