event_set
Prepare an event
Description
bool event_set
( resource $event
, mixed $fd
, int $events
, mixed $callback
[, mixed $arg
] )
If EV_SIGNAL bit is set in parameter events,
the fd is interpreted as signal number.
After initializing the event, use event_base_set to
associate the event with its event base.
In case of matching event, these three arguments are passed to the
callback function:
-
fd
-
Signal number or resource indicating the stream.
-
events
-
A flag indicating the event. Consists of the following flags:
EV_TIMEOUT, EV_SIGNAL,
EV_READ, EV_WRITE
and EV_PERSIST.
-
arg
-
Optional parameter, previously passed to event_set
as arg.
Parameters
-
event
-
Valid event resource.
-
fd
-
Valid PHP stream resource. The stream must be castable to file
descriptor, so you most likely won't be able to use any of filtered
streams.
-
events
-
A set of flags indicating the desired event, can be
EV_READ and/or EV_WRITE.
The additional flag EV_PERSIST makes the event
to persist until event_del is called, otherwise
the callback is invoked only once.
-
callback
-
Callback function to be called when the matching event occurs.
-
arg
-
Optional callback parameter.
Return Values
event_set returns TRUE on success or FALSE on error.