statsd metrics reporting (#496)

added support for reporting metrics via statsd style UDP messaging, which is supported by many monitoring solution providers

this change adds reporting only of three cache related metrics (hit/miss/put) but this should be extended to include more metrics after additional evaluation

1 files changed, 4 insertions, 0 deletions

diff --git a/src/zenserver/zenserver.h b/src/zenserver/zenserver.h
index 25e45ccd0..de069be69 100644
--- a/src/zenserver/zenserver.h
+++ b/src/zenserver/zenserver.h
@@ -33,6 +33,7 @@ ZEN_THIRD_PARTY_INCLUDES_END
 #include "objectstore/objectstore.h"
 #include "projectstore/httpprojectstore.h"
 #include "projectstore/projectstore.h"
+#include "stats/statsreporter.h"
 #include "upstream/upstream.h"
 #include "vfs/vfsservice.h"
 
@@ -75,6 +76,7 @@ public:
 	void EnqueueTimer();
 	void EnqueueStateMarkerTimer();
 	void EnqueueSigIntTimer();
+	void EnqueueStatsReportingTimer();
 	void CheckStateMarker();
 	void CheckSigInt();
 	void CheckOwnerPid();
@@ -96,6 +98,7 @@ private:
 	asio::steady_timer				m_PidCheckTimer{m_IoContext};
 	asio::steady_timer				m_StateMakerTimer{m_IoContext};
 	asio::steady_timer				m_SigIntTimer{m_IoContext};
+	asio::steady_timer				m_StatsReportingTimer{m_IoContext};
 	ProcessMonitor					m_ProcessMonitor;
 	NamedMutex						m_ServerMutex;
 
@@ -109,6 +112,7 @@ private:
 	inline void				SetNewState(ServerState NewState) { m_CurrentState = NewState; }
 	static std::string_view ToString(ServerState Value);
 
+	StatsReporter					 m_StatsReporter;
 	Ref<HttpServer>					 m_Http;
 	std::unique_ptr<AuthMgr>		 m_AuthMgr;
 	std::unique_ptr<HttpAuthService> m_AuthService;