forked from phpstan/phpstan-src
/
Scheduler.php
44 lines (37 loc) · 872 Bytes
/
Scheduler.php
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<?php declare(strict_types = 1);
namespace PHPStan\Parallel;
use function array_chunk;
use function count;
use function floor;
use function max;
use function min;
class Scheduler
{
/**
* @param positive-int $jobSize
* @param positive-int $maximumNumberOfProcesses
* @param positive-int $minimumNumberOfJobsPerProcess
*/
public function __construct(
private int $jobSize,
private int $maximumNumberOfProcesses,
private int $minimumNumberOfJobsPerProcess,
)
{
}
/**
* @param array<string> $files
*/
public function scheduleWork(
int $cpuCores,
array $files,
): Schedule
{
$jobs = array_chunk($files, $this->jobSize);
$numberOfProcesses = min(
max((int) floor(count($jobs) / $this->minimumNumberOfJobsPerProcess), 1),
$cpuCores,
);
return new Schedule(min($numberOfProcesses, $this->maximumNumberOfProcesses), $jobs);
}
}