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<?php |
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namespace Vectorface\Cache; |
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use DateInterval; |
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use Vectorface\Cache\Common\PSR16Util; |
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/** |
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* This cache is ridiculously fast, according to basic benchmarks: |
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* |
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* Parameters: |
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* APC 3.0.19 |
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* 9-byte key |
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* 151-byte value |
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* 10000-iteration test |
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* |
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* Result: |
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* 0.065223 seconds |
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* |
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* Conclusion: |
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* Capable of approximately 150000 requests/second |
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*/ |
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/** |
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* Implements the Cache interface on top of APC or APCu. |
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*/ |
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class APCCache implements Cache, AtomicCounter |
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{ |
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use PSR16Util; |
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/** |
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* The module name that defines the APC methods. |
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*/ |
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private string $apcModule = 'apcu'; |
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/** |
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* @inheritDoc |
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*/ |
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public function get(string $key, mixed $default = null) : mixed |
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{ |
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$value = $this->call('fetch', $this->key($key)); |
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return ($value === false) ? $default : $value; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function set(string $key, mixed $value, DateInterval|int|null $ttl = null) : bool |
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{ |
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return $this->call('store', $this->key($key), $value, $this->ttl($ttl)); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function delete($key) : bool |
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{ |
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return $this->call('delete', $this->key($key)); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function clean() : bool |
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1 |
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{ |
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return false; |
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1 |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function flush() : bool |
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{ |
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return $this->call('clear_cache'); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function clear() : bool |
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{ |
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return $this->flush(); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function getMultiple(iterable $keys, mixed $default = null) : iterable |
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{ |
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$keys = $this->keys($keys); |
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return $this->defaults( |
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$keys, |
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$this->call('fetch', $keys), |
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$default |
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); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function setMultiple(iterable $values, DateInterval|int|null $ttl = null) : bool |
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{ |
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$results = $this->call( |
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'store', |
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$this->values($values), |
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null, |
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$this->ttl($ttl) |
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); |
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return array_reduce($results, static fn($carry, $item) => $carry && $item, true); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function deleteMultiple(iterable $keys) : bool |
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{ |
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$success = true; |
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foreach ($this->keys($keys) as $key) { |
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$success = $this->call('delete', $key) && $success; |
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} |
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return $success; |
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2 |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function has(string $key) : bool |
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1 |
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{ |
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return $this->call('exists', $this->key($key)); |
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1 |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function increment(string $key, int $step = 1, DateInterval|int|null $ttl = null) : int|false |
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{ |
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return $this->call('inc', $this->key($key), $this->step($step), null, $this->ttl($ttl)); |
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1 |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function decrement(string $key, int $step = 1, DateInterval|int|null $ttl = null) : int|false |
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1 |
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{ |
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return $this->call('dec', $this->key($key), $this->step($step), null, $this->ttl($ttl)); |
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1 |
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} |
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/** |
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* Pass a call through to APC or APCu |
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151
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* @param string $call Transformed to a function apc(u)_$call |
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152
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* @param mixed ...$args Function arguments |
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153
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* @return mixed The result passed through from apc(u)_$call |
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*/ |
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private function call(string $call, ...$args) : mixed |
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{ |
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$function = "{$this->apcModule}_{$call}"; |
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return $function(...$args); |
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} |
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} |
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Vectorface /
cache
