This is a read-only subtree split of https://github.com/open-telemetry/opentelemetry-php-contrib.

OpenTelemetry Revolt EventLoop adapter

Propagates the current open-telemetry/context to revolt/event-loop callbacks.

$context = Context::getCurrent();
EventLoop::queue(fn() => assert($context === Context::getCurrent()));

Installation

composer require open-telemetry/opentelemetry-revolt-adapter

Usage

The adapter is automatically applied to the global event loop.
If you use a local event loop or replace the initial driver using EventLoop::setDriver(), you must manually wrap the driver using RevoltDriver::wrap().

Metrics

When the open-telemetry/api package is installed, this package emits the following metrics for the global event loop.

Metric: php.revolt.eventloop.callbacks

Name	Instrument Type	Unit (UCUM)	Description
php.revolt.eventloop.callbacks	UpDownCounter	{callback}	The number of registered event loop callbacks

Attributes

Key	Value Type	Example Values
php.revolt.eventloop.callback.type	string	defer; delay; repeat; readable; writable; signal
php.revolt.eventloop.callback.state	string	referenced; unreferenced; disabled