Ev

Introduction

This extension provides interface to » libev library - a high performance full-featured event loop written in C.

Note:
This extension is not available on Windows platforms.

Libev is an event loop: one registers interest in certain events (such as a file descriptor being readable or a timeout occurring), and it will manage these event sources and provide the program with events.

To do this, it must take more or less complete control over the process (or thread) by executing the event loop handler, and will then communicate events via a callback mechanism.

You register interest in certain events by registering so-called event watchers, and then hand it over to libev by starting the watcher.

For details refer to the » documentation of libev.

Installing/Configuring
- Requirements
- Installation
Examples
Watchers
Watcher callbacks
Periodic watcher operation modes
Ev — The Ev class
- Ev::backend — Returns an integer describing the backend used by libev
- Ev::depth — Returns recursion depth
- Ev::embeddableBackends — Returns the set of backends that are embeddable in other event loops
- Ev::feedSignal — Feed a signal event into Ev
- Ev::feedSignalEvent — Feed signal event into the default loop
- Ev::iteration — Return the number of times the default event loop has polled for new events
- Ev::now — Returns the time when the last iteration of the default event loop has started
- Ev::nowUpdate — Establishes the current time by querying the kernel, updating the time returned by Ev::now in the progress
- Ev::recommendedBackends — Returns a bit mask of recommended backends for current platform
- Ev::resume — Resume previously suspended default event loop
- Ev::run — Begin checking for events and calling callbacks for the default loop
- Ev::sleep — Block the process for the given number of seconds
- Ev::stop — Stops the default event loop
- Ev::supportedBackends — Returns the set of backends supported by current libev configuration
- Ev::suspend — Suspend the default event loop
- Ev::time — Returns the current time in fractional seconds since the epoch
- Ev::verify — Performs internal consistency checks(for debugging)
EvCheck — The EvCheck class
- EvCheck::__construct — Constructs the EvCheck watcher object
- EvCheck::createStopped — Create instance of a stopped EvCheck watcher
EvChild — The EvChild class
- EvChild::__construct — Constructs the EvChild watcher object
- EvChild::createStopped — Create instance of a stopped EvChild watcher
- EvChild::set — Configures the watcher
EvEmbed — The EvEmbed class
- EvEmbed::__construct — Constructs the EvEmbed object
- EvEmbed::createStopped — Create stopped EvEmbed watcher object
- EvEmbed::set — Configures the watcher
- EvEmbed::sweep — Make a single, non-blocking sweep over the embedded loop
EvFork — The EvFork class
- EvFork::__construct — Constructs the EvFork watcher object
- EvFork::createStopped — Creates a stopped instance of EvFork watcher class
EvIdle — The EvIdle class
- EvIdle::__construct — Constructs the EvIdle watcher object
- EvIdle::createStopped — Creates instance of a stopped EvIdle watcher object
EvIo — The EvIo class
- EvIo::__construct — Constructs EvIo watcher object
- EvIo::createStopped — Create stopped EvIo watcher object
- EvIo::set — Configures the watcher
EvLoop — The EvLoop class
- EvLoop::backend — Returns an integer describing the backend used by libev
- EvLoop::check — Creates EvCheck object associated with the current event loop instance
- EvLoop::child — Creates EvChild object associated with the current event loop
- EvLoop::__construct — Constructs the event loop object
- EvLoop::defaultLoop — Returns or creates the default event loop
- EvLoop::embed — Creates an instance of EvEmbed watcher associated with the current EvLoop object
- EvLoop::fork — Creates EvFork watcher object associated with the current event loop instance
- EvLoop::idle — Creates EvIdle watcher object associated with the current event loop instance
- EvLoop::invokePending — Invoke all pending watchers while resetting their pending state
- EvLoop::io — Create EvIo watcher object associated with the current event loop instance
- EvLoop::loopFork — Must be called after a fork
- EvLoop::now — Returns the current "event loop time"
- EvLoop::nowUpdate — Establishes the current time by querying the kernel, updating the time returned by EvLoop::now in the progress
- EvLoop::periodic — Creates EvPeriodic watcher object associated with the current event loop instance
- EvLoop::prepare — Creates EvPrepare watcher object associated with the current event loop instance
- EvLoop::resume — Resume previously suspended default event loop
- EvLoop::run — Begin checking for events and calling callbacks for the loop
- EvLoop::signal — Creates EvSignal watcher object associated with the current event loop instance
- EvLoop::stat — Creates EvStat watcher object associated with the current event loop instance
- EvLoop::stop — Stops the event loop
- EvLoop::suspend — Suspend the loop
- EvLoop::timer — Creates EvTimer watcher object associated with the current event loop instance
- EvLoop::verify — Performs internal consistency checks(for debugging)
EvPeriodic — The EvPeriodic class
- EvPeriodic::again — Simply stops and restarts the periodic watcher again
- EvPeriodic::at — Returns the absolute time that this watcher is supposed to trigger next
- EvPeriodic::__construct — Constructs EvPeriodic watcher object
- EvPeriodic::createStopped — Create a stopped EvPeriodic watcher
- EvPeriodic::set — Configures the watcher
EvPrepare — The EvPrepare class
- EvPrepare::__construct — Constructs EvPrepare watcher object
- EvPrepare::createStopped — Creates a stopped instance of EvPrepare watcher
EvSignal — The EvSignal class
- EvSignal::__construct — Constructs EvSignal watcher object
- EvSignal::createStopped — Create stopped EvSignal watcher object
- EvSignal::set — Configures the watcher
EvStat — The EvStat class
- EvStat::attr — Returns the values most recently detected by Ev
- EvStat::__construct — Constructs EvStat watcher object
- EvStat::createStopped — Create a stopped EvStat watcher object
- EvStat::prev — Returns the previous set of values returned by EvStat::attr
- EvStat::set — Configures the watcher
- EvStat::stat — Initiates the stat call
EvTimer — The EvTimer class
- EvTimer::again — Restarts the timer watcher
- EvTimer::__construct — Constructs an EvTimer watcher object
- EvTimer::createStopped — Creates EvTimer stopped watcher object
- EvTimer::set — Configures the watcher
EvWatcher — The EvWatcher class
- EvWatcher::clear — Clear watcher pending status
- EvWatcher::__construct — Abstract constructor of a watcher object
- EvWatcher::feed — Feeds the given revents set into the event loop
- EvWatcher::getLoop — Returns the loop responsible for the watcher
- EvWatcher::invoke — Invokes the watcher callback with the given received events bit mask
- EvWatcher::keepalive — Configures whether to keep the loop from returning
- EvWatcher::setCallback — Sets new callback for the watcher
- EvWatcher::start — Starts the watcher
- EvWatcher::stop — Stops the watcher