Merge pull request #14887 from rgacogne/ddist19-backport-14850

dnsdist-1.9.x: Backport of #14850 - add elapsed time to dq object
PowerDNS · Dec 13, 2024 · df6510b · df6510b
2 parents 691c57f + 9fd070b
commit df6510b
Show file tree

Hide file tree

Showing 2 changed files with 16 additions and 0 deletions.
diff --git a/pdns/dnsdist-lua-bindings-dnsquestion.cc b/pdns/dnsdist-lua-bindings-dnsquestion.cc
@@ -146,6 +146,10 @@ void setupLuaBindingsDNSQuestion(LuaContext& luaCtx)
     return dq.ids.queryRealTime.getStartTime();
   });
 
+  luaCtx.registerFunction<double (DNSQuestion::*)() const>("getElapsedUs", [](const DNSQuestion& dnsQuestion) {
+    return dnsQuestion.ids.queryRealTime.udiff();
+  });
+
   luaCtx.registerFunction<void(DNSQuestion::*)(std::string)>("sendTrap", [](const DNSQuestion& dq, boost::optional<std::string> reason) {
 #ifdef HAVE_NET_SNMP
       if (g_snmpAgent && g_snmpTrapsEnabled) {
@@ -450,6 +454,10 @@ class AsynchronousObject
     return dr.ids.queryRealTime.getStartTime();
   });
 
+  luaCtx.registerFunction<double (DNSResponse::*)() const>("getElapsedUs", [](const DNSResponse& dnsResponse) {
+    return dnsResponse.ids.queryRealTime.udiff();
+  });
+
   luaCtx.registerFunction<void(DNSResponse::*)(std::string)>("sendTrap", [](const DNSResponse& dr, boost::optional<std::string> reason) {
 #ifdef HAVE_NET_SNMP
       if (g_snmpAgent && g_snmpTrapsEnabled) {

diff --git a/pdns/dnsdistdist/docs/reference/dq.rst b/pdns/dnsdistdist/docs/reference/dq.rst
@@ -131,6 +131,14 @@ This state can be modified from the various hooks.
 
     :returns: A table of EDNSOptionView objects, indexed on the ECS Option code
 
+  .. method:: DNSQuestion::getElapsedUs -> double
+
+     .. versionadded:: 2.0.0
+
+     Return the amount of time that has elapsed since the query was received.
+
+     :returns: A double indicating elapsed time in microseconds
+
   .. method:: DNSQuestion:getHTTPHeaders() -> table
 
     .. versionadded:: 1.4.0