Пример #1
0
// Listing 4
// Listing 5 code/ch17
int handle_child (void)
{
  ACE_TRACE (ACE_TEXT ("::handle_child"));

  ACE_GUARD_RETURN (ACE_Process_Mutex, ace_mon, coordMutex, -1);

  ALLOCATOR * shmem_allocator = 0;
  ACE_MMAP_Memory_Pool_Options options
    (ACE_DEFAULT_BASE_ADDR,
     ACE_MMAP_Memory_Pool_Options::ALWAYS_FIXED);

  ACE_NEW_RETURN (shmem_allocator,
                  ALLOCATOR (BACKING_STORE,
                             BACKING_STORE,
                             &options),
                  -1);

  MAP *map = smap (shmem_allocator);

  ACE_DEBUG ((LM_DEBUG,
              ACE_TEXT ("(%P|%t) Map has %d entries\n"),
              map->current_size ()));
  ACE_DEBUG ((LM_DEBUG,
              ACE_TEXT ("In child, map is located at %@\n"),
              map));

  processRecords (map, shmem_allocator);
  shmem_allocator->sync ();
  delete shmem_allocator;

  return 0;
}
Пример #2
0
static void
unbind_test (MAP &map,
             size_t iterations,
             KEY *keys)
{
  // Remove system generated keys.
  size_t counter = iterations;
  for (VALUE i = 0; i < iterations; ++i)
    {
      ACE_ASSERT (map.unbind (keys[i]) != -1);
      --counter;
      ACE_ASSERT (map.current_size () == counter);
    }
}
Пример #3
0
static void
insert_test (MAP &map,
             size_t iterations,
             KEY *keys)
{
  // Add to the map, allowing keys to be created by the map.
  size_t counter = 0;
  for (VALUE i = 0; i < iterations; ++i)
    {
      ACE_ASSERT (map.bind_create_key (i, keys[i]) == 0);
      ++counter;
      ACE_ASSERT (map.current_size () == counter);
    }
}
Пример #4
0
static void
functionality_test (MAP &map,
                    size_t iterations)
{
  size_t counter;
  VALUE i;
  KEY *original_keys = new KEY[iterations];
  KEY *modified_keys = new KEY[iterations];

  // Setup the keys to have some initial data.
  for (i = 0;
       i < iterations;
       ++i)
    {
      original_keys[i].size (sizeof i / sizeof (KEY::TYPE));
      ACE_OS::memcpy (&original_keys[i][0],
                      &i,
                      sizeof i);
    }

  // Make a copy of the keys so that we can compare with the original
  // keys later.
  for (i = 0; i < iterations; ++i)
    {
      modified_keys[i] = original_keys[i];
    }

  // Add to the map, allowing keys to be modified.
  counter = 0;
  for (i = 0; i < iterations; ++i)
    {
      ACE_ASSERT (map.bind_modify_key (i, modified_keys[i]) == 0);
      ++counter;
      ACE_ASSERT (map.current_size () == counter);
    }

  // Forward iteration...
  {
    counter = 0;
    MAP::iterator end = map.end ();

    for (MAP::iterator iter = map.begin ();
         iter != end;
         ++iter, ++counter)
      {
        MAP::value_type entry = *iter;

        // Recover original key.
        KEY original_key;
        ACE_ASSERT (map.recover_key (entry.first (),
                                     original_key) == 0);

        // Make sure recovering keys work.
        ACE_ASSERT (original_keys[entry.second ()] == original_key);

        // Obtain value from key.
        VALUE original_value;
        ACE_OS::memcpy (&original_value,
                        &original_key[0],
                        sizeof original_value);

        // Debugging info.
        ACE_DEBUG ((LM_DEBUG,
                    ACE_TEXT ("(%d|%d|%d)"),
                    counter,
                    original_value,
                    entry.second ()));
      }

    ACE_DEBUG ((LM_DEBUG,
                ACE_TEXT ("\n")));
    ACE_ASSERT (counter == iterations);
  }

  // Reverse iteration...
  {
    counter = iterations;
    MAP::reverse_iterator end = map.rend ();

    for (MAP::reverse_iterator iter = map.rbegin ();
         iter != end;
         ++iter)
      {
        --counter;
        MAP::value_type entry = *iter;

        // Recover original key.
        KEY original_key;
        ACE_ASSERT (map.recover_key (entry.first (),
                                     original_key) == 0);

        // Make sure recovering keys work.
        ACE_ASSERT (original_keys[entry.second ()] == original_key);

        // Obtain value from key.
        VALUE original_value;
        ACE_OS::memcpy (&original_value,
                        &original_key[0],
                        sizeof original_value);

        // Debugging info.
        ACE_DEBUG ((LM_DEBUG,
                    ACE_TEXT ("(%d|%d|%d)"),
                    counter,
                    original_value,
                    entry.second ()));
      }

    ACE_DEBUG ((LM_DEBUG,
                ACE_TEXT ("\n")));
    ACE_ASSERT (counter == 0);
  }

  // Search using the modified keys.
  for (i = 0; i < iterations; ++i)
    {
      VALUE j;
      ACE_ASSERT (map.find (modified_keys[i], j) != -1);
      ACE_ASSERT (i == j);
    }

  // Rmoved keys from map.
  counter = iterations;
  for (i = 0; i < iterations; ++i)
    {
      ACE_ASSERT (map.unbind (modified_keys[i]) != -1);
      --counter;
      ACE_ASSERT (map.current_size () == counter);
    }

  // Cleanup.
  delete[] modified_keys;
  delete[] original_keys;
}
Пример #5
0
// Listing 5
// Listing 3 code/ch17
int handle_parent (char *cmdLine)
{
  ACE_TRACE (ACE_TEXT ("::handle_parent"));

  ALLOCATOR * shmem_allocator = 0;
  ACE_MMAP_Memory_Pool_Options options
    (ACE_DEFAULT_BASE_ADDR,
     ACE_MMAP_Memory_Pool_Options::ALWAYS_FIXED);

  ACE_NEW_RETURN
    (shmem_allocator,
     ALLOCATOR (BACKING_STORE, BACKING_STORE, &options),
     -1);

  MAP *map = smap (shmem_allocator);

  ACE_Process processa, processb;
  ACE_Process_Options poptions;
  poptions.command_line("%s a", cmdLine);
  {
    ACE_GUARD_RETURN (ACE_Process_Mutex, ace_mon,
                      coordMutex, -1);
    ACE_DEBUG ((LM_DEBUG,
                ACE_TEXT ("(%P|%t) Map has %d entries\n"),
                map->current_size ()));
    ACE_DEBUG ((LM_DEBUG,
                ACE_TEXT ("In parent, map is located at %@\n"),
                map));

    // Then have the child show and eat them up.
    processa.spawn (poptions);

    // First append a few records.
    addRecords (map, shmem_allocator);
  }


  {
    ACE_GUARD_RETURN (ACE_Process_Mutex, ace_mon,
                      coordMutex, -1);

    // Add a few more records..
    addRecords (map, shmem_allocator);

    // Let's see what's left.
    ACE_DEBUG ((LM_DEBUG,
                ACE_TEXT ("(%P|%t) Parent finished adding, ")
                ACE_TEXT ("map has %d entries\n"),
                map->current_size ()));

    // Have another child try to eat them up.
    processb.spawn (poptions);
  }

  processa.wait ();
  processb.wait ();

  // No processes are left and we don't want to keep the data
  // around anymore; it's now safe to remove it.
  // !!This will remove the backing store.!!
  shmem_allocator->remove ();
  delete shmem_allocator;
  return 0;
}