
//=============================================================================
/**
 *  @file    Lazy_Map_Manager_Test.cpp
 *
 *   This is a simple test of the <ACE_Map_Manager> and
 *   <ACE_Active_Map_Manager> that illustrates how lazy map managers
 *   allow the deletion of entries while iterating over the map.
 *
 *  @author Irfan Pyarali <irfan@cs.wustl.edu>
 */
//=============================================================================


#include "test_config.h"
#include "ace/Map_Manager.h"
#include "ace/Active_Map_Manager.h"


// Simple map manager.
using LAZY_MAP = ACE_Map_Manager<int, int, ACE_Null_Mutex>;

// Displaying the contents of a map manager.

void
display_map (LAZY_MAP &map)
{
  {
    // Simple iteration printing the entries.
    for (LAZY_MAP::iterator iter = map.begin ();
         iter != map.end ();
         ++iter)
      {
        LAZY_MAP::ENTRY &entry = *iter;
        ACE_DEBUG ((LM_DEBUG,
                    ACE_TEXT ("%d "),
                    entry.int_id_));
      }

    ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("\n")));
  }

  {
    // Simple reverse iteration printing the entries.
    for (LAZY_MAP::reverse_iterator iter = map.rbegin ();
         iter != map.rend ();
         ++iter)
      {
        LAZY_MAP::ENTRY &entry = *iter;
        ACE_DEBUG ((LM_DEBUG,
                    ACE_TEXT ("%d "),
                    entry.int_id_));
      }

    ACE_DEBUG ((LM_DEBUG,
                ACE_TEXT ("\n")));
  }

  ACE_DEBUG ((LM_DEBUG,
              ACE_TEXT ("\n")));
}

// Test for map manager.

void
map_test ()
{
  // Map of size 3.
  LAZY_MAP map (3);
  int i = 0;

  // Insert a few entries.
  for (i = 0; i < 3; ++i)
    map.bind (i, i);

  display_map (map);

  // Remove middle one.
  map.unbind (1);

  display_map (map);

  // Remove the entry on one end.
  map.unbind (0);

  display_map (map);

  // Remove the entry on the other end.
  map.unbind (2);

  display_map (map);

  // If we have lazy map managers, we can delete entries while
  // iterating over the map.

#if defined (ACE_HAS_LAZY_MAP_MANAGER)

  // Insert a few entries.
  for (i = 0; i < 3; ++i)
    map.bind (i, i);

  display_map (map);

  // Remove middle one.
  {
    // Deletion while iterating.
    for (LAZY_MAP::iterator iter = map.begin ();
         iter != map.end ();
         ++iter)
    {
      LAZY_MAP::ENTRY &entry = *iter;
      if (entry.int_id_ == 1)
        map.unbind (1);
    }

    display_map (map);
  }

  // Remove the entry on one end.
  {
    // Deletion while iterating.
    for (LAZY_MAP::iterator iter = map.begin ();
         iter != map.end ();
         ++iter)
      {
        LAZY_MAP::ENTRY &entry = *iter;
        if (entry.int_id_ == 0)
          map.unbind (0);
      }

    display_map (map);
  }

  // Remove the entry on the other end.
  {
    // Deletion while iterating.
    for (LAZY_MAP::iterator iter = map.begin ();
         iter != map.end ();
         ++iter)
      {
        LAZY_MAP::ENTRY &entry = *iter;
        if (entry.int_id_ == 2)
          map.unbind (2);
      }

    display_map (map);
  }

#endif /* ACE_HAS_LAZY_MAP_MANAGER */

  // Insert a few entries.  This will force an increase in map size.
  for (i = 0; i < 4; ++i)
    map.bind (i, i);

  display_map (map);

  // Remove a few entries (in reverse order).
  for (i = 3; i >= 0; --i)
    map.unbind (i);

  display_map (map);
}

// Simple active map manager.
using ACTIVE_MAP = ACE_Active_Map_Manager<int>;

// Displaying the contents of an active map manager.

void
display_map (ACTIVE_MAP &map)
{
  {
    // Simple iteration printing the entries.
    for (ACTIVE_MAP::iterator iter = map.begin ();
         iter != map.end ();
         ++iter)
      {
        ACTIVE_MAP::ENTRY &entry = *iter;
        ACE_DEBUG ((LM_DEBUG,
                    ACE_TEXT ("%d "),
                    entry.int_id_));
      }

    ACE_DEBUG ((LM_DEBUG,
                ACE_TEXT ("\n")));
  }

  {
    // Simple reverse iteration printing the entries.
    for (ACTIVE_MAP::reverse_iterator iter = map.rbegin ();
         iter != map.rend ();
         ++iter)
      {
        ACTIVE_MAP::ENTRY &entry = *iter;
        ACE_DEBUG ((LM_DEBUG,
                    ACE_TEXT ("%d "),
                    entry.int_id_));
      }

    ACE_DEBUG ((LM_DEBUG,
                ACE_TEXT ("\n")));
  }

  ACE_DEBUG ((LM_DEBUG,
              ACE_TEXT ("\n")));
}

// Test for active map manager.

void
active_map_test ()
{
  // Map of size 3.
  ACTIVE_MAP map (3);
  ACE_Active_Map_Manager_Key keys[4];
  int i = 0;

  // Insert a few entries.
  for (i = 0; i < 3; ++i)
    map.bind (i, keys[i]);

  display_map (map);

  // Remove middle one.
  map.unbind (keys[1]);

  display_map (map);

  // Remove the entry on one end.
  map.unbind (keys[0]);

  display_map (map);

  // Remove the entry on the other end.
  map.unbind (keys[2]);

  display_map (map);

  // If we have lazy map managers, we can delete entries while
  // iterating over the map.

#if defined (ACE_HAS_LAZY_MAP_MANAGER)

  // Insert a few entries.
  for (i = 0; i < 3; ++i)
    map.bind (i, keys[i]);

  display_map (map);

  // Remove middle one.
  {
    // Deletion while iterating.
    for (ACTIVE_MAP::iterator iter = map.begin ();
         iter != map.end ();
         ++iter)
    {
      ACTIVE_MAP::ENTRY &entry = *iter;
      if (entry.int_id_ == 1)
        map.unbind (keys[1]);
    }

    display_map (map);
  }

  // Remove the entry on one end.
  {
    // Deletion while iterating.
    for (ACTIVE_MAP::iterator iter = map.begin ();
         iter != map.end ();
         ++iter)
      {
        ACTIVE_MAP::ENTRY &entry = *iter;
        if (entry.int_id_ == 0)
          map.unbind (keys[0]);
      }

    display_map (map);
  }

  // Remove the entry on the other end.
  {
    // Deletion while iterating.
    for (ACTIVE_MAP::iterator iter = map.begin ();
         iter != map.end ();
         ++iter)
      {
        ACTIVE_MAP::ENTRY &entry = *iter;
        if (entry.int_id_ == 2)
          map.unbind (keys[2]);
      }

    display_map (map);
  }

#endif /* ACE_HAS_LAZY_MAP_MANAGER */

  // Insert a few entries.  This will force an increase in map size.
  for (i = 0; i < 4; ++i)
    map.bind (i, keys[i]);

  display_map (map);

  // Remove a few entries (in reverse order).
  for (i = 3; i >= 0; --i)
    map.unbind (keys[i]);

  display_map (map);
}

int
run_main (int, ACE_TCHAR *[])
{
  ACE_START_TEST (ACE_TEXT ("Lazy_Map_Manager_Test"));
  ACE_LOG_MSG->clr_flags (ACE_Log_Msg::VERBOSE_LITE);

  ACE_DEBUG ((LM_DEBUG,
              ACE_TEXT ("\nMap Manager...\n\n")));
  map_test ();

  ACE_DEBUG ((LM_DEBUG,
              ACE_TEXT ("\nActive Map Manager...\n\n")));
  active_map_test ();

  ACE_LOG_MSG->set_flags (ACE_Log_Msg::VERBOSE_LITE);
  ACE_END_TEST;
  return 0;
}

