ilXcache Class Reference

Class ilXcache. More...

Inheritance diagram for ilXcache:

Collaboration diagram for ilXcache:

Public Member Functions
	__construct ($serviceId, $component)
	ilXcache constructor. More...
	exists ($key)
	set ($key, $serialized_value, $ttl=null)
	get ($key)
	delete ($key)
	flush ()
	serialize ($value)
	unserialize ($serialized_value)
	getInfo ()
	__destruct ()
Public Member Functions inherited from ilGlobalCacheService
	__construct ($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 ($key)
	flush ()
	setServiceType ($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 = 32

Protected Member Functions
	getActive ()
	getInstallable ()
	getMemoryLimit ()
	getMinMemory ()
	saveValid ()
	readValid ()
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 ilXcache.

Concrete XCache implementation.

Author

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

Version

1.0.1

Definition at line 12 of file class.ilXcache.php.

Constructor & Destructor Documentation

__construct()

ilXcache::__construct	(		$serviceId,
			$component
	)

ilXcache constructor.

Parameters

$serviceId
$component

Reimplemented from ilGlobalCacheService.

Definition at line 23 of file class.ilXcache.php.

    {
        parent::__construct($serviceId, $component);
        $this->readValid();
    }

References ilGlobalCacheService\$component, and readValid().

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__destruct()

ilXcache::__destruct

(

)

Definition at line 193 of file class.ilXcache.php.

    {
        $this->saveValid();
    }

References saveValid().

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Member Function Documentation

delete()

ilXcache::delete

(

$key

)

Parameters

$key

Returns

bool

Reimplemented from ilGlobalCacheService.

Definition at line 70 of file class.ilXcache.php.

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

References $key, and ilGlobalCacheService\returnKey().

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exists()

ilXcache::exists

(

$key

)

Parameters

$key

Returns

bool

Reimplemented from ilGlobalCacheService.

Definition at line 35 of file class.ilXcache.php.

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

References $key, and ilGlobalCacheService\returnKey().

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flush()

ilXcache::flush

(

)

Returns

bool

Reimplemented from ilGlobalCacheService.

Definition at line 79 of file class.ilXcache.php.

    {
        $_SERVER["PHP_AUTH_USER"] = "xcache";
        $_SERVER["PHP_AUTH_PW"] = "xcache";
 
        xcache_clear_cache(XC_TYPE_VAR, 0);
 
        return true;
    }

References $_SERVER.

get()

ilXcache::get

(

$key

)

Parameters

$key

Returns

mixed

Reimplemented from ilGlobalCacheService.

Definition at line 59 of file class.ilXcache.php.

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

References $key, and ilGlobalCacheService\returnKey().

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getActive()

ilXcache::getActive ( )

protected

Returns

bool

Reimplemented from ilGlobalCacheService.

Definition at line 115 of file class.ilXcache.php.

    {
        $function_exists = function_exists('xcache_set');
        $var_size = ini_get('xcache.var_size') != '0M';
        $var_count = ini_get('xcache.var_count') > 0;
        $api = (php_sapi_name() !== 'cli');
 
        $active = $function_exists and $var_size and $var_count and $api;
 
        return $active;
    }

References ilGlobalCacheService\$active.

getInfo()

ilXcache::getInfo

(

)

Returns

array

Reimplemented from ilGlobalCacheService.

Definition at line 140 of file class.ilXcache.php.

    {
        if ($this->isActive()) {
            return xcache_info(XC_TYPE_VAR, 0);
        }
    }

References ilGlobalCacheService\isActive().

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getInstallable()

ilXcache::getInstallable ( )

protected

Returns

bool

Reimplemented from ilGlobalCacheService.

Definition at line 131 of file class.ilXcache.php.

    {
        return function_exists('xcache_set');
    }

getMemoryLimit()

ilXcache::getMemoryLimit ( )

protected

Returns

int|string

Reimplemented from ilGlobalCacheService.

Definition at line 151 of file class.ilXcache.php.

    {
        return ini_get('xcache.var_size');
    }

getMinMemory()

ilXcache::getMinMemory ( )

protected

Returns

int

Reimplemented from ilGlobalCacheService.

Definition at line 160 of file class.ilXcache.php.

    {
        return self::MIN_MEMORY;
    }

References MIN_MEMORY.

readValid()

ilXcache::readValid ( )

protected

Returns

void

@description set self::$valid_keys from GlobalCache

Definition at line 185 of file class.ilXcache.php.

    {
        if ($this->isActive() && $this->isInstallable()) {
            $this->valid_keys = $this->unserialize($this->get('valid_keys'));
            $this->valid_key_hash = md5(serialize($this->valid_keys));
        }
    }

References ilGlobalCacheService\isActive(), ilGlobalCacheService\isInstallable(), serialize(), and unserialize().

Referenced by __construct().

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saveValid()

ilXcache::saveValid ( )

protected

Returns

void

@description save self::$valid_keys to GlobalCache

Definition at line 170 of file class.ilXcache.php.

    {
        if ($this->isActive()) {
            if ($this->valid_key_hash != md5(serialize($this->valid_keys))) {
                $this->set('valid_keys', $this->serialize($this->valid_keys));
            }
        }
    }

References ilGlobalCacheService\isActive(), and serialize().

Referenced by __destruct().

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serialize()

ilXcache::serialize

(

$value

)

Parameters

$value

Returns

mixed

Reimplemented from ilGlobalCacheService.

Definition at line 95 of file class.ilXcache.php.

    {
        return serialize($value);
    }

References serialize().

Referenced by readValid(), saveValid(), and serialize().

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set()

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

Parameters

	$key
	$serialized_value
null	$ttl

Returns

bool

Reimplemented from ilGlobalCacheService.

Definition at line 48 of file class.ilXcache.php.

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

References $key, and ilGlobalCacheService\returnKey().

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unserialize()

ilXcache::unserialize

(

$serialized_value

)

Parameters

$serialized_value

Returns

mixed

Reimplemented from ilGlobalCacheService.

Definition at line 106 of file class.ilXcache.php.

    {
        return unserialize($serialized_value);
    }

References unserialize().

Referenced by readValid(), and unserialize().

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Field Documentation

MIN_MEMORY

const ilXcache::MIN_MEMORY = 32

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

Referenced by getMinMemory().

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

• Services/GlobalCache/classes/Xcache/class.ilXcache.php