ShmHandler Class Reference

Collaboration diagram for ShmHandler:

Public Member Functions
	ShmHandler ($key=98374, $size=131072)
	getLock ()
	releaseLock ()
	store (&$what, $key)
	restore (&$what, $key)
	dispose ()
	halt ($msg)

Data Fields
	$shmKey
	$shmSize
	$shmid
	$semid
	$debug = true

Member Function Documentation

dispose

(

)

release shared memory segment

public

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getLock

(

)

acquire semaphore lock

private

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halt

(

$msg

)

print error message and exit script

private

Parameters

string

$msg

the message to print

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releaseLock

(

)

release semaphore lock

private

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restore	(	&	$what,
			$key
	)

restores a variable from shared memory

public

Parameters

mixed	&$what	variable to restore (call by reference)
integer	$key	the key from which to store

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ShmHandler	(		$key = 98374,
			$size = 131072
	)

constructor

does nothing special, just acquires handles for a memory segment and a semaphore to it

public

Parameters

integer	$key	must be unique on this machine
integer	$size	in bytes

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store	(	&	$what,
			$key
	)

stores a variable in shared memory

public

Parameters

mixed	&$what	variable to store (call by reference)
integer	$key	the key under which to store

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Field Documentation

$debug = true

$semid

$shmid

$shmKey

$shmSize

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

• lib/chat/ShmHandler.class.php