Remove main loop from application file

Isolate main in its own file for maximum flexibility
when linking.

Change-Id: I7b1f591386d69a7044c65e7aab2116626166e4ff
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/readd.cpp b/readd.cpp
index ed32b0a..1ac5ddc 100644
--- a/readd.cpp
+++ b/readd.cpp
@@ -15,12 +15,8 @@
  */
 #include <iostream>
 #include <memory>
-#include <thread>
 #include "argument.hpp"
-#include "sensorset.hpp"
-#include "sensorcache.hpp"
-#include "hwmon.hpp"
-#include "sysfs.hpp"
+#include "mainloop.hpp"
 
 static void exit_with_error(const char* err, char** argv)
 {
@@ -45,51 +41,7 @@
     // Finished getting options out, so cleanup the parser.
     options.reset();
 
-    // Check sysfs for available sensors.
-    auto sensors = std::make_unique<SensorSet>(path);
-    auto sensor_cache = std::make_unique<SensorCache>();
-
-    // TODO: Issue#3 - Need to make calls to the dbus sensor cache here to
-    //       ensure the objects all exist?
-
-    // Polling loop.
-    while (true)
-    {
-        // Iterate through all the sensors.
-        for (auto& i : *sensors)
-        {
-            if (i.second.find(hwmon::entry::input) != i.second.end())
-            {
-                // Read value from sensor.
-                int value = 0;
-                read_sysfs(make_sysfs_path(path,
-                                           i.first.first, i.first.second,
-                                           hwmon::entry::input),
-                           value);
-
-                // Update sensor cache.
-                if (sensor_cache->update(i.first, value))
-                {
-                    // TODO: Issue#4 - dbus event here.
-                    std::cout << i.first.first << i.first.second << " = "
-                              << value << std::endl;
-                }
-            }
-        }
-
-        // Sleep until next interval.
-        // TODO: Issue#5 - Make this configurable.
-        // TODO: Issue#6 - Optionally look at polling interval sysfs entry.
-        {
-            using namespace std::literals::chrono_literals;
-            std::this_thread::sleep_for(1s);
-        }
-
-        // TODO: Issue#7 - Should probably periodically check the SensorSet
-        //       for new entries.
-    }
-
-    return 0;
+    return serverMain(path.c_str());
 }
 
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