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public class Mutex
class.mutex.php #10The Mutex class is a crude locking class that generates files with a specific time to live. It has basic functions to create a lock, release a lock or refresh a lock.
Methods
static boolean acquire()
Creates a lock file if one does not already exist with a certain time to live (TTL) at a specific path. If a lock already exists, false will be returned otherwise boolean depending if a lock file was created successfully or not.
Parameters
static boolean lockExists()
Checks if a lock exists, purely on the presence on the lock file. This function takes the unobfuscated lock name
Parameters
static boolean refresh()
Updates a lock file to 'keep alive' for another 'x' seconds.
Parameters
static boolean release()
Removes a lock file. This is the only way a lock file can be removed