BIND 10 trac2160, updated. edeea1792d69930f2e2aa1d5621e286e868c294b [2160] add comment about Message vars in sync_udp_server

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       via  edeea1792d69930f2e2aa1d5621e286e868c294b (commit)
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- Log -----------------------------------------------------------------
commit edeea1792d69930f2e2aa1d5621e286e868c294b
Author: Jelte Jansen <jelte at isc.org>
Date:   Wed Sep 5 11:46:21 2012 +0200

    [2160] add comment about Message vars in sync_udp_server

-----------------------------------------------------------------------

Summary of changes:
 src/lib/asiodns/sync_udp_server.cc |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

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diff --git a/src/lib/asiodns/sync_udp_server.cc b/src/lib/asiodns/sync_udp_server.cc
index 037074a..0c577f2 100644
--- a/src/lib/asiodns/sync_udp_server.cc
+++ b/src/lib/asiodns/sync_udp_server.cc
@@ -114,7 +114,12 @@ SyncUDPServer::handleRead(const asio::error_code& ec, const size_t length) {
         return;
     }
 
-    // Make sure the buffers are fresh
+    // Make sure the buffers are fresh.  Note that we don't touch query_
+    // because it's supposed to be cleared in lookup_callback_.  We should
+    // eventually even remove this member variable (and remove it from
+    // the lookup_callback_ interface, but until then, any callback
+    // implementation should be careful that it's the responsibility of
+    // the callback implementation.  See also #2239).
     output_buffer_->clear();
     answer_->clear(isc::dns::Message::RENDER);