lib/avahi/ExplorerListener: add "host_name" parameter

Author: MaxKellermann

libcommon

@@ -577,6 +577,7 @@ LbCluster::ConnectZeroconfTcp(AllocatorPtr alloc,
 
 void
 LbCluster::OnAvahiNewObject(const std::string &key,
+			    [[maybe_unused]] const char *host_name,
 			    const InetAddress &address,
 			    AvahiStringList *txt,
 			    Avahi::ObjectFlags flags) noexcept

src/lb/Cluster.cxx

@@ -242,6 +242,7 @@ private:
 
 	/* virtual methods from class AvahiServiceExplorerListener */
 	void OnAvahiNewObject(const std::string &key,
+			      const char *host_name,
 			      const InetAddress &address,
 			      AvahiStringList *txt,
 			      Avahi::ObjectFlags flags) noexcept override;

src/lb/Cluster.hxx

@@ -66,6 +66,7 @@ LbPrometheusDiscovery::HandleHttpRequest(IncomingHttpRequest &request,
 
 void
 LbPrometheusDiscovery::OnAvahiNewObject(const std::string &key,
+					[[maybe_unused]] const char *host_name,
 					const InetAddress &address,
 					[[maybe_unused]] AvahiStringList *txt,
 					[[maybe_unused]] Avahi::ObjectFlags flags) noexcept

src/lb/PrometheusDiscovery.cxx

@@ -38,6 +38,7 @@ private:
 
 	/* virtual methods from class AvahiServiceExplorerListener */
 	void OnAvahiNewObject(const std::string &key,
+			      const char *host_name,
 			      const InetAddress &address,
 			      AvahiStringList *txt,
 			      Avahi::ObjectFlags flags) noexcept override;