mDNS timeout: use real type (#8394)

Author: d-a-v

libraries/ESP8266mDNS/src/LEAmDNS.h

@@ -1030,6 +1030,8 @@ class MDNSResponder
                 esp8266::polledTimeout::oneShotMs m_TTLTimeout;
                 timeoutLevel_t                    m_timeoutLevel;
 
+                using timeoutBase = decltype(m_TTLTimeout);
+
                 stcTTL(void);
                 bool set(uint32_t p_u32TTL);
 
@@ -1039,7 +1041,7 @@ class MDNSResponder
                 bool prepareDeletion(void);
                 bool finalTimeoutLevel(void) const;
 
-                unsigned long timeout(void) const;
+                timeoutBase::timeType timeout(void) const;
             };
 #ifdef MDNS_IP4_SUPPORT
             /**

libraries/ESP8266mDNS/src/LEAmDNS_Structs.cpp

@@ -1663,22 +1663,19 @@ bool MDNSResponder::stcMDNSServiceQuery::stcAnswer::stcTTL::finalTimeoutLevel(vo
 /*
     MDNSResponder::stcMDNSServiceQuery::stcAnswer::stcTTL::timeout
 */
-unsigned long MDNSResponder::stcMDNSServiceQuery::stcAnswer::stcTTL::timeout(void) const
+MDNSResponder::stcMDNSServiceQuery::stcAnswer::stcTTL::timeoutBase::timeType MDNSResponder::stcMDNSServiceQuery::stcAnswer::stcTTL::timeout(void) const
 {
-
-    unsigned long   timeout = esp8266::polledTimeout::oneShotMs::neverExpires;
-
     if (TIMEOUTLEVEL_BASE == m_timeoutLevel)            // 80%
     {
-        timeout = (m_u32TTL * 800L);                  // to milliseconds
+        return (m_u32TTL * 800L);                  // to milliseconds
     }
     else if ((TIMEOUTLEVEL_BASE < m_timeoutLevel) &&    // >80% AND
              (TIMEOUTLEVEL_FINAL >= m_timeoutLevel))    // <= 100%
     {
 
-        timeout = (m_u32TTL * 50L);
+        return (m_u32TTL * 50L);
     }   // else: invalid
-    return timeout;
+    return MDNSResponder::stcMDNSServiceQuery::stcAnswer::stcTTL::timeoutBase::neverExpires;
 }