26 lines
		
	
	
		
			468 B
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			26 lines
		
	
	
		
			468 B
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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namespace GuzzleHttp\Promise;
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interface TaskQueueInterface
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{
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    /**
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     * Returns true if the queue is empty.
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     *
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     * @return bool
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     */
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    public function isEmpty();
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    /**
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     * Adds a task to the queue that will be executed the next time run is
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     * called.
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     *
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     * @param callable $task
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     */
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    public function add(callable $task);
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    /**
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     * Execute all of the pending task in the queue.
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     */
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    public function run();
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}
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