function _dmemcache_get_pieces in Memcache API and Integration 7

Same name and namespace in other branches

1. 6 dmemcache.inc \_dmemcache_get_pieces()

Retrieve a value from the cache.

Parameters

$item: The placeholder cache item from _dmemcache_set_pieces().

$key: The key with which the item was stored.

string $bin: (optional) The bin in which the item was stored.

object $mc: (optional) The memcache object. Normally this value is determined automatically based on the bin the object is being stored to.

Return value

object|bool The item which was originally saved or FALSE.

2 calls to _dmemcache_get_pieces()

dmemcache_get in ./dmemcache.inc

Retrieve a value from the cache.

dmemcache_get_multi in ./dmemcache.inc

Retrieve multiple values from the cache.

File

./dmemcache.inc, line 340

A memcache API for Drupal.

Code

function _dmemcache_get_pieces($item, $key, $bin = 'cache', $mc = NULL) {

  // Create a list of keys for the pieces of data.
  for ($id = 0; $id < $item->piece_count; $id++) {
    $keys[] = _dmemcache_key_piece($key, $id);
  }

  // Retrieve all the pieces of data and append them together.
  $pieces = dmemcache_get_multi($keys, $bin, $mc);
  $data = '';
  foreach ($pieces as $piece) {

    // The piece may be NULL if it didn't exist in memcache. If so,
    // we have to just return false for the entire set because we won't
    // be able to reconstruct the original data without all the pieces.
    if (!$piece) {
      return FALSE;
    }
    $data .= $piece->data;
  }
  unset($pieces);

  // If necessary unserialize the item.
  if (empty($item->serialized)) {
    return $data;
  }
  else {
    $unserialize_function = dmemcache_unserialize();
    return $unserialize_function($data);
  }
}