Class ilApc. More...

Inheritance diagram for ilApc:

Collaboration diagram for ilApc:

Public Member Functions

exists ($key)

set ($key, $serialized_value, $ttl=0)

get ($key)

delete ($key)

flush ($complete=false)

serialize ($value)

unserialize ($serialized_value)

getInfo ()

isValid ($key)

Checks whether the cache key is valid or not.This method exists only for legacy reasons and has only a real function in combination with XCache.

Parameters

string $key The key which should be checked.

Returns: bool True if the key is valid otherwise false.

More...

Public Member Functions inherited from ilGlobalCacheService

__construct ($service_id, $component)

unserialize ($serialized_value)

get ($key)

set ($key, $serialized_value, $ttl=null)

serialize ($value)

getServiceId ()

setServiceId ($service_id)

getComponent ()

setComponent ($component)

isActive ()

isInstallable ()

returnKey ($key)

getInfo ()

getInstallationFailureReason ()

exists ($key)

delete ($key)

flush ($complete=false)

setServiceType ($service_type)

getServiceType ()

setValid ($key)

Declare a key as valid. More...

setInvalid ($key=null)

Set the key as invalid. More...

isValid ($key)

Checks whether the cache key is valid or not. More...

Data Fields
const	MIN_MEMORY = 16

const	CACHE_ID = 'user'

Protected Member Functions
	getActive ()

	getInstallable ()

	getMemoryLimit ()

	getMinMemory ()
	@inheritDoc More...

Protected Member Functions inherited from ilGlobalCacheService
	getActive ()

	getInstallable ()

	getMemoryLimit ()

	getMinMemory ()

	checkMemory ()

Additional Inherited Members
Protected Attributes inherited from ilGlobalCacheService
	$current_time = 0

	$valid_keys = array()

	$service_id = ''

	$component = ''

	$service_type = ilGlobalCache::TYPE_STATIC

	$valid_key_hash = ''

Static Protected Attributes inherited from ilGlobalCacheService
static	$active = array()

static	$installable = array()

Detailed Description

Class ilApc.

@beta

Author: Fabian Schmid fs@st.nosp@m.uder.nosp@m.-raim.nosp@m.ann..nosp@m.ch

Version: 1.0.0

Definition at line 14 of file class.ilApc.php.

Member Function Documentation

◆ delete()

ilApc::delete ( $key )

Parameters

$key

Returns: bool|string[]

Reimplemented from ilGlobalCacheService.

Definition at line 64 of file class.ilApc.php.

    {
        return apcu_delete($this->returnKey($key));
    }

References ilGlobalCacheService\returnKey().

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◆ exists()

ilApc::exists ( $key )

Parameters

$key

Returns: bool

Reimplemented from ilGlobalCacheService.

Definition at line 25 of file class.ilApc.php.

    {
        if (function_exists('apcu_exists')) {
            return apcu_exists($this->returnKey($key));
        } else {
            return apcu_fetch($this->returnKey($key));
        }
    }

References ilGlobalCacheService\returnKey().

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◆ flush()

ilApc::flush ( $complete = false )

Parameters

bool $complete

Returns: bool

Reimplemented from ilGlobalCacheService.

Definition at line 75 of file class.ilApc.php.

    {
        // incomplete flushing is not supported by APCu, an own implementation coused issues like https://mantis.ilias.de/view.php?id=28201
        return function_exists('apcu_clear_cache') && apcu_clear_cache();
    }

◆ get()

ilApc::get ( $key )

Parameters

$key

Returns: mixed

Reimplemented from ilGlobalCacheService.

Definition at line 53 of file class.ilApc.php.

    {
        return apcu_fetch($this->returnKey($key));
    }

References ilGlobalCacheService\returnKey().

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◆ getActive()

ilApc::getActive ( )

protected

Returns: bool

Reimplemented from ilGlobalCacheService.

Definition at line 138 of file class.ilApc.php.

    {
        return function_exists('apcu_store');
    }

◆ getInfo()

ilApc::getInfo ( )

Returns: array

Reimplemented from ilGlobalCacheService.

Definition at line 107 of file class.ilApc.php.

    {
        $return = array();
 
        $cache_info = apc_cache_info();
 
        unset($cache_info['cache_list']);
        unset($cache_info['slot_distribution']);
 
        $return['__cache_info'] = array(
            'apc.enabled' => ini_get('apc.enabled'),
            'apc.shm_size' => ini_get('apc.shm_size'),
            'apc.shm_segments' => ini_get('apc.shm_segments'),
            'apc.gc_ttl' => ini_get('apc.gc_ttl'),
            'apc.user_ttl' => ini_get('apc.ttl'),
            'info' => $cache_info,
        );
 
        $cache_info = apc_cache_info();
        foreach ($cache_info['cache_list'] as $dat) {
            $key = $dat['key'];
 
            if (preg_match('/' . $this->getServiceId() . '_' . $this->getComponent() . '/', $key)) {
                $return[$key] = apc_fetch($key);
            }
        }
 
        return $return;
    }

References ilGlobalCacheService\getComponent(), and ilGlobalCacheService\getServiceId().

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◆ getInstallable()

ilApc::getInstallable ( )

protected

Returns: bool

Reimplemented from ilGlobalCacheService.

Definition at line 147 of file class.ilApc.php.

    {
        return function_exists('apcu_store');
    }

◆ getMemoryLimit()

ilApc::getMemoryLimit ( )

protected

Returns: string

Reimplemented from ilGlobalCacheService.

Definition at line 156 of file class.ilApc.php.

    {
        if (ilRuntime::getInstance()->isHHVM()) {
            return $this->getMinMemory() . 'M';
        }
 
        return ini_get('apc.shm_size');
    }

References ilRuntime\getInstance(), and getMinMemory().

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◆ getMinMemory()

ilApc::getMinMemory ( )

protected

@inheritDoc

Reimplemented from ilGlobalCacheService.

Definition at line 169 of file class.ilApc.php.

    {
        return self::MIN_MEMORY;
    }

References MIN_MEMORY.

Referenced by getMemoryLimit().

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◆ isValid()

ilApc::isValid ( $key )

Checks whether the cache key is valid or not.This method exists only for legacy reasons and has only a real function in combination with XCache.

Parameters

string $key The key which should be checked.

Returns: bool True if the key is valid otherwise false.

Reimplemented from ilGlobalCacheService.

Definition at line 178 of file class.ilApc.php.

    {
        return true;
    }

◆ serialize()

ilApc::serialize ( $value )

Parameters

$value

Returns: mixed|string

Reimplemented from ilGlobalCacheService.

Definition at line 87 of file class.ilApc.php.

    {
        return ($value);
    }

◆ set()

ilApc::set	(	$key,
		$serialized_value,
		$ttl = `0`
	)

Parameters

	$key
	$serialized_value
int	$ttl

Returns: array|bool

Reimplemented from ilGlobalCacheService.

Definition at line 42 of file class.ilApc.php.

    {
        return apcu_store($this->returnKey($key), $serialized_value, $ttl);
    }

References ilGlobalCacheService\returnKey().

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◆ unserialize()

ilApc::unserialize ( $serialized_value )

Parameters

$serialized_value

Returns: mixed

Reimplemented from ilGlobalCacheService.

Definition at line 98 of file class.ilApc.php.

    {
        return ($serialized_value);
    }

Field Documentation

◆ CACHE_ID

const ilApc::CACHE_ID = 'user'

Definition at line 17 of file class.ilApc.php.

◆ MIN_MEMORY

const ilApc::MIN_MEMORY = 16

Definition at line 16 of file class.ilApc.php.

Referenced by getMinMemory().

The documentation for this class was generated from the following file:

Services/GlobalCache/classes/Apc/class.ilApc.php

Public Member Functions

Data Fields

Protected Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ delete()

◆ exists()

◆ flush()

◆ get()

◆ getActive()

◆ getInfo()

◆ getInstallable()

◆ getMemoryLimit()

◆ getMinMemory()

◆ isValid()

◆ serialize()

◆ set()

◆ unserialize()

Field Documentation

◆ CACHE_ID

◆ MIN_MEMORY