example_05.cpp

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// =============================================================================
// =============================================================================

#include <cassert>
#include <cmath>

#include "hanfun.h"
#include "hanfun/debug.h"

#include "localloop.h"

// =============================================================================
// Implementation
// =============================================================================

namespace
{
   /*
    * Unit implementing the Simple %Level Control profile.
    */
   struct SimpleLevelControl: public HF::Units::Unit<HF::Profiles::SimpleLevelControl>
   {
      SimpleLevelControl(uint8_t id, HF::IDevice &device):
         HF::Units::Unit<HF::Profiles::SimpleLevelControl>(id, device)
      {}
   };

   /*
    * Unit implementing the Simple Level Controllable profile.
    */
   struct SimpleLevelControllable: public HF::Units::Unit<HF::Profiles::SimpleLevelControllable>
   {
      typedef HF::Units::Unit<HF::Profiles::SimpleLevelControllable> _Parent;

      SimpleLevelControllable(uint8_t id, HF::IDevice &device):
         _Parent(id, device)
      {}

      void level_change(HF::Protocol::Address &source, uint8_t old_level, uint8_t new_level)
      {
         _Parent::level_change(source, old_level, new_level);
         LOG(INFO) << "Level Change : "
                   << (int) HF::Common::to_percent(old_level)
                   << "\% -> "
                   << (int) HF::Common::to_percent(new_level)
                   << "\%" << NL;
      }
   };

   /*
    * Example node.
    */
   struct Node: public HF::Devices::Node::Node
   {};

   /*
    * Example concentrator.
    */
   struct Base: public HF::Devices::Concentrator::Concentrator
   {};

}  // namespace

// =============================================================================
// MAIN
// =============================================================================

int main(int argc, char **argv)
{
   UNUSED(argc);
   UNUSED(argv);

   LOG(INFO) << "Use case : Level Control interface usage" << NL;

   /*
    * Each node variable is a remote device, i.e.,
    * the Node variables are declared on the remote device
    * code and are not used on the base code.
    */
   LOG(INFO) << "Create the node instances ..." << NL;

   Node node1;

   LOG(INFO) << "Add unit to node1 instance ..." << NL;
   SimpleLevelControl level_control(1, node1);

   Node node2;

   LOG(INFO) << "Add unit to node2 instance ..." << NL;
   SimpleLevelControllable level_controllable(1, node2);

   /*
    * This instance represents the base application.
    */
   LOG(INFO) << "Create the base instance ..." << NL;
   Base base;

   LOG(INFO) << "Create transport instance" << NL;
   Localloop loop;

   /*
    * Setup the network.
    *
    * This simulates the devices connecting to the base using for
    * example a TCP/IP connection or a DECT ULE PVC.
    */
   LOG(INFO) << "Network setup ..." << NL;

   loop.set_base(&base);
   loop.add_node(&node1, "node_1");
   loop.add_node(&node2, "node_2");

   // Register the two devices.

   // Node 1 is unregistered.
   assert(node1.address() == HF::Protocol::BROADCAST_ADDR);

   LOG(INFO) << "Registering node1 ... " << NL;
   node1.unit0()->device_management()->register_device();
   LOG(INFO) << "Node1 address ... " << node1.address() << NL;

   // Node 1 is registered
   assert(node1.address() == 1);

   // Node 2 is unregistered.
   assert(node2.address() == HF::Protocol::BROADCAST_ADDR);

   LOG(INFO) << "Registering node2 ... " << NL;
   node2.unit0()->device_management()->register_device();
   LOG(INFO) << "Node2 address ... " << node2.address() << NL;

   // Node 2 is registered
   assert(node2.address() == 2);

   LOG(INFO) << "There should be two registered devices ... "
             << base.unit0()->device_management()->entries().size() << NL;

   assert(base.unit0()->device_management()->entries().size() == 2);

   LOG(INFO) << "Set initial level value ... 10\%" << NL;
   level_controllable.level(10.0f);

   // =============================================================================
   // Send change level message to a specific device/unit
   // =============================================================================

   LOG(INFO) << "Send level change to a specific device/unit ..." << NL;

   HF::Protocol::Address addr(2, 1);

   LOG(INFO) << "Change level to 20\% ..." << NL;
   level_control.level(addr, 20.0f);

   LOG(INFO) << "Level Controllable should have new level value : "
             << (int) HF::Common::to_percent(level_controllable.level()) << "\%" << NL;
   assert(level_controllable.level() == HF::Common::from_percent<uint8_t>(20.0));

   // =============================================================================
   // Send change level message to the broadcast device/unit
   // =============================================================================

   LOG(INFO) << "Send level change to the broadcast device/unit ..." << NL;

   // Create a bind entry.
   LOG(INFO) << "Create bind entry on the base ... " << NL;
   HF::Protocol::Address source(1, 1);
   HF::Protocol::Address destination(2, 1);
   HF::Common::Interface itf(HF::Interface::LEVEL_CONTROL, HF::Interface::SERVER_ROLE);

   base.unit0()->bind_management()->add(source, destination, itf);
   LOG(INFO) << "There should be one bind entry ... "
             << base.unit0()->bind_management()->entries().size() << NL;
   assert(base.unit0()->bind_management()->entries().size() == 1);

   LOG(INFO) << "Change level to 50\% ..." << NL;
   level_control.level(50.0f);

   LOG(INFO) << "Level Controllable should have new level value : "
             << (int) HF::Common::to_percent(level_controllable.level()) << "\%" << NL;
   assert(level_controllable.level() == HF::Common::from_percent<uint8_t>(50));

   return 0;
}