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<?php |
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/** |
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* Async sockets |
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* |
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* @copyright Copyright (c) 2015-2017, Efimov Evgenij <[email protected]> |
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* |
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* This source file is subject to the MIT license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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namespace AsyncSockets\RequestExecutor; |
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/** |
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* Class ExecutionContext |
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*/ |
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class ExecutionContext implements \ArrayAccess |
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{ |
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/** |
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* Data items |
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* |
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* @var array |
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*/ |
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private $items; |
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/** |
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* Nested contexts |
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* |
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* @var ExecutionContext[] |
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*/ |
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private $namespaces; |
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/** |
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* ExecutionContext constructor. |
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* |
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* @param array $items Initial data for context |
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*/ |
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public function __construct(array $items = []) |
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{ |
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$this->items = $items; |
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$this->namespaces = []; |
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} |
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/** |
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* Return nested isolated execution context |
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* |
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* @param string $namespace Namespace name |
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* |
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* @return ExecutionContext |
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*/ |
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public function inNamespace($namespace) |
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{ |
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if (!isset($this->namespaces[$namespace])) { |
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$this->namespaces[$namespace] = new static([]); |
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} |
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return $this->namespaces[$namespace]; |
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} |
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/** |
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* Clears data inside the context |
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* |
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* @return void |
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*/ |
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public function clear() |
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{ |
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$this->items = []; |
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} |
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/** |
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* Set a value |
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* |
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* @param string|int $key Key |
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* @param mixed $value A value |
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* |
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* @return void |
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*/ |
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public function set($key, $value) |
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{ |
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$this->offsetSet($key, $value); |
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} |
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/** |
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* Return a value stored under the key |
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* |
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* @param string|int $key A key |
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* @param mixed $default Default value to return if key does not exist |
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* |
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* @return mixed |
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*/ |
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public function get($key, $default = null) |
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{ |
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return $this->has($key) ? $this->items[$key] : $default; |
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} |
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/** |
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* Return true if context has value for a given key |
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* |
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* @param string|int $key A key |
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* |
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* @return bool |
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*/ |
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public function has($key) |
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{ |
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return $this->offsetExists($key); |
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} |
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/** |
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* Removes a value under given key |
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* |
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* @param string|int $key A key |
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* |
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* @return void |
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*/ |
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public function remove($key) |
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{ |
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$this->offsetUnset($key); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function offsetExists($offset) |
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{ |
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return isset($this->items[$offset]) || array_key_exists($offset, $this->items); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function offsetGet($offset) |
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{ |
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return $this->offsetExists($offset) ? $this->items[$offset] : null; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function offsetSet($offset, $value) |
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{ |
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$this->items[$offset] = $value; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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1 |
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public function offsetUnset($offset) |
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{ |
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unset($this->items[$offset]); |
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} |
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} |
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|
edefimov /
async-sockets
