XXXVI. File Alteration Monitor Functions
Introduzione
FAM monitors files and directories, notifying interested applications of changes. More information about FAM is available at http://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.
Nota: Questo modulo è stato spostato nel repository PECL e non sarà più rilascio con il PHP dalla versione 5.1.0.
Nota: Questo modulo non è disponibile su piattaforme Windows.
Requisiti
This extension uses the functions of the FAM library, developed by SGI. Therefore you have to download and install the FAM library.
Installazione
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.
Configurazione di Runtime
Questa estensione non definisce alcuna direttiva di configurazione in php.ini
Tipi di risorse
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.
Costanti predefinite
Queste costanti sono definite da questa estensione e sono disponibili solo se l'estensione è stata compilata nel PHP o se è stata caricata dinamicamente a runtime.
Tabella 1. 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. |
- Sommario
- fam_cancel_monitor -- Terminate monitoring
- fam_close -- Close FAM connection
- fam_monitor_collection -- Monitor a collection of files in a directory for changes
- fam_monitor_directory -- Monitor a directory for changes
- fam_monitor_file -- Monitor a regular file for changes
- fam_next_event -- Get next pending FAM event
- fam_open -- Open connection to FAM daemon
- fam_pending -- Check for pending FAM events
- fam_resume_monitor -- Resume suspended monitoring
- fam_suspend_monitor -- Temporarily suspend monitoring