/**
 * Configuration for processing pool control, for use in high-traffic wikis.
 * An implementation is provided in the PoolCounter extension.
 *
 * This configuration array maps pool types to an associative array. The only
 * defined key in the associative array is "class", which gives the class name.
 * The remaining elements are passed through to the class as constructor
 * parameters.
 *
 * @par Example using local redis instance:
 * @code
 *   $wgPoolCounterConf = [ 'ArticleView' => [
 *     'class' => PoolCounterRedis::class,
 *     'timeout' => 15, // wait timeout in seconds
 *     'workers' => 1, // maximum number of active threads in each pool
 *     'maxqueue' => 5, // maximum number of total threads in each pool
 *     'servers' => [ '127.0.0.1' ],
 *     'redisConfig' => []
 *   ] ];
 * @endcode
 *
 * @par Example using C daemon from https://www.mediawiki.org/wiki/Extension:PoolCounter:
 * @code
 *   $wgPoolCounterConf = [ 'ArticleView' => [
 *     'class' => PoolCounter_Client::class,
 *     'timeout' => 15, // wait timeout in seconds
 *     'workers' => 5, // maximum number of active threads in each pool
 *     'maxqueue' => 50, // maximum number of total threads in each pool
 *     ... any extension-specific options...
 *   ] ];
 * @endcode
 */
$wgPoolCounterConf = null;