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WaitGroup / add

Method

WaitGroup::add

Adds $delta to the counter of unfinished work.

Description#

public WaitGroup::add(
    int $delta = 1
): void

A negative delta marks work as done. When the counter reaches zero, the waiting coroutines resume.

Parameters#

$delta int = 1: The amount of work to add

Errors / Exceptions#

Exception	When
`LogicException`	If the counter would become negative

See also#

WaitGroup::doneMarks one piece of work as done.