Innmind\Server\Status\Facade\Cpu\LinuxFacade::__invoke()

Complexity

Conditions	4
Paths	3

Size

Total Lines	27
Code Lines	17

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	17
CRAP Score	4.0027

Importance

Changes	1
Bugs	0	Features	1

<?php
    public function __invoke(): Cpu
    {
        $process = Process::fromShellCommandline('top -bn1 | grep \'%Cpu\'');
        $process->run();

        if (!$process->isSuccessful()) {
            throw new CpuUsageNotAccessible;
        }

        $percentages = Str::of($process->getOutput())
            ->trim()
            ->capture(
                '~^%Cpu\(s\): *(?P<user>\d+\.?\d*) us, *(?P<sys>\d+\.?\d*) sy, *(\d+\.?\d*) ni, *(?P<idle>\d+\.?\d*) id~'
            );

        $process = Process::fromShellCommandline('nproc');
        $process->run();

        if ($process->isSuccessful()) {
            $cores = ((int) (string) $process->getOutput()) ?: 1;
        }

        return new Cpu(
            new Percentage((float) $percentages->get('user')->toString()),
            new Percentage((float) $percentages->get('sys')->toString()),
            new Percentage((float) $percentages->get('idle')->toString()),
            new Cores((int) (string) ($cores ?? 1)),
        );