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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\Operation; |
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/** |
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* Class ReadWriteOperation. Provides reading and writing at the same time |
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*/ |
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class ReadWriteOperation implements OperationInterface |
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{ |
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/** |
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* Flag if read operations must be processed before write |
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*/ |
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const READ_FIRST = true; |
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/** |
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* Flag if write operations must be processed before read |
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*/ |
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const WRITE_FIRST = false; |
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/** |
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* Operation queue indexed by operation type |
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* |
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* @var OperationInterface[][] |
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*/ |
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private $queue = []; |
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/** |
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* Flag whether read operation must be fired before write |
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* |
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* @var bool |
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*/ |
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private $isReadFirst; |
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/** |
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* ReadWriteOperation constructor. |
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* |
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* @param bool $isReadFirst Flag whether read operation must be fired before write |
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* @param OperationInterface[] $operations Array of operations to schedule |
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*/ |
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public function __construct($isReadFirst, array $operations = []) |
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{ |
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$this->isReadFirst = $isReadFirst; |
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foreach ($operations as $operation) { |
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$this->scheduleOperation($operation); |
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} |
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} |
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/** |
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* Set read or write operation |
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* |
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* @param OperationInterface $operation Operation to set |
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* |
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* @return void |
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*/ |
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public function scheduleOperation(OperationInterface $operation) |
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{ |
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$key = spl_object_hash($operation); |
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switch (true) { |
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case $operation instanceof ReadOperation: |
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$this->queue[OperationInterface::OPERATION_READ][$key] = $operation; |
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break; |
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case $operation instanceof WriteOperation: |
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$this->queue[OperationInterface::OPERATION_WRITE][$key] = $operation; |
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break; |
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default: |
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// no action |
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} |
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} |
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/** |
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* Mark operation as completed |
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* |
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* @param OperationInterface $operation Operation to mark as done |
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* |
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* @return void |
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*/ |
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public function markCompleted(OperationInterface $operation) |
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{ |
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$key = spl_object_hash($operation); |
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switch (true) { |
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case $operation instanceof ReadOperation: |
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unset($this->queue[OperationInterface::OPERATION_READ][$key]); |
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break; |
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case $operation instanceof WriteOperation: |
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unset($this->queue[OperationInterface::OPERATION_WRITE][$key]); |
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break; |
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default: |
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// no action |
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} |
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} |
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/** |
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* Return current read operation |
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* |
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* @return ReadOperation|null |
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*/ |
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public function getReadOperation() |
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{ |
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return !empty($this->queue[OperationInterface::OPERATION_READ]) ? |
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reset($this->queue[OperationInterface::OPERATION_READ]) : |
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null; |
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} |
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/** |
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* Return current write operation |
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* |
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* @return WriteOperation|null |
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*/ |
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public function getWriteOperation() |
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{ |
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return !empty($this->queue[OperationInterface::OPERATION_WRITE]) ? |
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reset($this->queue[OperationInterface::OPERATION_WRITE]) : |
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null; |
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} |
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/** |
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* Return true if read must be handled before write |
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* |
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* @return bool |
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*/ |
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public function isReadFirst() |
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{ |
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return $this->isReadFirst; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function getTypes() |
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{ |
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$result = []; |
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foreach ($this->queue as $type => $operations) { |
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if (!empty($operations)) { |
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$result[] = $type; |
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} |
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} |
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return $result; |
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} |
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} |
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|
edefimov /
async-sockets
