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File Alteration Monitor Functions

Introductie

FAM monitors files and directories, notifying interested applications of changes. More information about FAM is available at » https://oss.sgi.com/projects/fam/.

A PHP script may specify a list of files for FAM to monitor using the functions provided by this extension.

The FAM process is started when the first connection from any application to it is opened. It exits after all connections to it have been closed.

Note: This extension has been moved to the » PECL repository and is no longer bundled with PHP as of PHP 5.1.0.

Note: Deze module is niet verkrijgbaar voor de windows versie van PHP.

Afhankelijkheden

This extension uses the functions of the » FAM library, developed by SGI. Therefore you have to download and install the FAM library.

Installatie

To use PHP's FAM support you must compile PHP --with-fam[=DIR] where DIR is the location of the directory containing the lib and include directories.

Configuratie tijdens scriptuitvoer

Deze extensie gebruikt geen configuratie regels.

Resource types

There are two resource types used in the FAM module. The first one is the connection to the FAM service returned by fam_open(), the second a monitoring resource returned by the fam_monitor_XXX functions.

Voorgedefinieerde constanten

Deze constanten worden gedefinieerd door deze extensie, en zullen alleen beschikbaar zijn als de extensie met PHP is meegecompileerd, of als deze dynamisch is geladen vanuit een script.

FAM event constants
Constant Description
FAMChanged (integer) Some value which can be obtained with fstat(1) changed for a file or directory.
FAMDeleted (integer) A file or directory was deleted or renamed.
FAMStartExecuting (integer) An executable file started executing.
FAMStopExecuting (integer) An executable file that was running finished.
FAMCreated (integer) A file was created in a directory.
FAMMoved (integer) This event never occurs.
FAMAcknowledge (integer) An event in response to fam_cancel_monitor().
FAMExists (integer) An event upon request to monitor a file or directory. When a directory is monitored, an event for that directory and every file contained in that directory is issued.
FAMEndExist (integer) Event after the last FAMEExists event.

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