(PECL swoole >= 1.9.0)
Swoole\Atomic::cmpset — Compare and set the value of the atomic object.
$cmp_value
, int $new_value
) : int
cmp_valueThe value to compare with the current value of the atomic object.
new_valueThe value to set to the atomic object if the cmp_value is the same as the current value of the atomic object.
The new value of the atomic object.