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Filename : EventLoopGroup.php
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<?php
/**
 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 * SPDX-License-Identifier: Apache-2.0.
 */
namespace AWS\CRT\IO;

use AWS\CRT\NativeResource as NativeResource;
use AWS\CRT\Options as Options;

/**
 * Represents 1 or more event loops (1 per thread) for doing I/O and background tasks.
 * Typically, every application has one EventLoopGroup.
 *
 * @param array options:
 * - int num_threads - Number of worker threads in the EventLoopGroup. Defaults to 0/1 per logical core.
 */
final class EventLoopGroup extends NativeResource {

    static function defaults() {
        return [
            'max_threads' => 0,
        ];
    }

    function __construct(array $options = []) {
        parent::__construct();
        $options = new Options($options, self::defaults());
        $elg_options = self::$crt->event_loop_group_options_new();
        self::$crt->event_loop_group_options_set_max_threads($elg_options, $options->getInt('max_threads'));
        $this->acquire(self::$crt->event_loop_group_new($elg_options));
        self::$crt->event_loop_group_options_release($elg_options);
    }

    function __destruct() {
        self::$crt->event_loop_group_release($this->release());
        parent::__destruct();
    }
}