7 views 
Summery Summery
Runtime testing method for 32-bit platforms.
Syntax Syntax
Description Description
Usage: If runtime_speed_test() returns FALSE, then our 32-bit implementation is to slow to use safely without risking timeouts. If this happens, install sodium from PECL to get acceptable performance.
Parameters Parameters
- $iterations
-
(Required) Number of multiplications to attempt
- $maxTimeout
-
(Required) Milliseconds
Return Return
(bool) TRUE if we're fast enough, FALSE is not
Source Source
File: wp-includes/sodium_compat/src/Compat.php
public static function runtime_speed_test($iterations, $maxTimeout)
{
if (self::polyfill_is_fast()) {
return true;
}
/** @var float $end */
$end = 0.0;
/** @var float $start */
$start = microtime(true);
/** @var ParagonIE_Sodium_Core32_Int64 $a */
$a = ParagonIE_Sodium_Core32_Int64::fromInt(random_int(3, 1 << 16));
for ($i = 0; $i < $iterations; ++$i) {
/** @var ParagonIE_Sodium_Core32_Int64 $b */
$b = ParagonIE_Sodium_Core32_Int64::fromInt(random_int(3, 1 << 16));
$a->mulInt64($b);
}
/** @var float $end */
$end = microtime(true);
/** @var int $diff */
$diff = (int) ceil(($end - $start) * 1000);
return $diff < $maxTimeout;
}