function apc_handle_set in APC - Alternative PHP Cache 6

Same name and namespace in other branches

1. 5 apc.inc \apc_handle_set()

Set data into apc cache. We have to keep track of the bins ourselves since apc doesn't have the concept of "bins". So we keep a lookup table hash to be able to clear a single bin via flush.

Parameters

$key: The key of the data to retrieve.

$bin: The bin/silo to look in.

1 call to apc_handle_set()

cache_set in ./apc.inc

Store data in the persistent cache.

File

./apc.inc, line 123

Code

function apc_handle_set($key, $data, $expire = CACHE_PERMENANT, $bin = 'cache') {
  global $apc_page_stats;
  $apc_page_stats['set']++;
  if (!empty($key) && !empty($data)) {
    if (!apc_get_lock($bin)) {
      watchdog('apc', 'Unable to get lock for bin: ' . $bin, WATCHDOG_ERROR);
      return FALSE;
    }

    // Get lookup table to be able to keep track of bins
    $lookup = apc_fetch('apc_lookup_' . $bin);

    // If the lookup table is empty, initialize table
    if (empty($lookup)) {
      $lookup = array();
    }

    // Get full key for storage and set it to 1 so we can keep track of the bin
    $full_key = apc_handle_key($key, $bin);
    $lookup[$full_key] = 1;

    // Attempt to store full key and value
    if (!apc_store($full_key, $data, $expire)) {
      unset($lookup[$full_key]);
      $return = FALSE;
    }
    else {
      $return = TRUE;
    }
  }

  // Resave the lookup table (even on failure)
  apc_store('apc_lookup_' . $bin, $lookup);
  apc_remove_lock($bin);
  return $return;
}