(PECL event >= 2.1.0-alpha)
EventConfig::setMaxDispatchInterval — Prevents priority inversion
public EventConfig::setMaxDispatchInterval( int $max_interval , int $max_callbacks , int $min_priority ): void
Prevents priority inversion by limiting how many low-priority event callbacks can be invoked before checking for more high-priority events.
Note:
Available since
libevent 2.1.0-alpha.
max_interval An interval after which Libevent should stop running callbacks and check for more events, or 0, if there should be no such interval.
max_callbacks A number of callbacks after which Libevent should stop running callbacks and check for more events, or -1, if there should be no such limit.
min_priority A priority below which max_interval and max_callbacks should not be enforced. If this is set to 0, they are enforced for events of every priority; if it's set to 1, they're enforced for events of priority 1 and above, and so on.
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https://www.php.net/manual/en/eventconfig.setmaxdispatchinterval.php