From aebe139d00b44684158edb3616da5c37b12db6d1 Mon Sep 17 00:00:00 2001
From: Roland Reichwein <mail@reichwein.it>
Date: Sun, 26 Apr 2020 13:01:19 +0200
Subject: Added stats output

---
 server.cpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'server.cpp')

diff --git a/server.cpp b/server.cpp
index 71f39ac..5d1609d 100644
--- a/server.cpp
+++ b/server.cpp
@@ -20,6 +20,7 @@
 #include <boost/config.hpp>
 
 #include <exception>
+#include <functional>
 #include <iostream>
 #include <thread>
 #include <vector>
@@ -39,6 +40,10 @@ using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
 
 const std::string Server::VersionString{ "Reichwein.IT Webserver "s + std::string{VERSION} };
 
+namespace {
+ const int32_t stats_timer_seconds { 24 * 60 * 60 }; // save stats once a day
+} // anonymous namespace
+
 Server::Server(Config& config, boost::asio::io_context& ioc, const Socket& socket, plugins_container_type& plugins, Statistics& statistics)
  : m_config(config)
  , m_ioc(ioc)
@@ -66,6 +71,16 @@ int run_server(Config& config, plugins_container_type& plugins)
                     ioc.stop();
                     });
 
+ // Save stats once a day
+ boost::asio::steady_timer stats_save_timer(ioc, boost::asio::chrono::seconds(stats_timer_seconds));
+ std::function<void(const boost::system::error_code&)> stats_callback =
+   [&](const boost::system::error_code& error){
+         stats.save();
+         stats_save_timer.expires_at(stats_save_timer.expires_at() + boost::asio::chrono::seconds(stats_timer_seconds));
+         stats_save_timer.async_wait(stats_callback);
+   };
+ stats_save_timer.async_wait(stats_callback);
+
  std::vector<std::shared_ptr<Server>> servers;
 
  const auto& sockets {config.Sockets()};
-- 
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