unblock example

'file', 'NUL', 'w'],
        ];
    }

    public function getFiles(): array
    {
        return $this->files;
    }

    public function readAndWrite(bool $blocking, bool $close = false): array
    {
        $this->unblock();
        $w = $this->write();
        $read = $r = $e = [];

        if ($blocking) {
            if ($w) {
                @stream_select($r, $w, $e, 0, Process::TIMEOUT_PRECISION * 1E6);
            } elseif ($this->fileHandles) {
                usleep(Process::TIMEOUT_PRECISION * 1E6);
            }
        }
        foreach ($this->fileHandles as $type => $fileHandle) {
            

'file', 'NUL', 'w'],
        ];
    }

    public function getFiles(): array
    {
        return $this->files;
    }

    public function readAndWrite(bool $blocking, bool $close = false): array
    {
        $this->unblock();
        $w = $this->write();
        $read = $r = $e = [];

        if ($blocking) {
            if ($w) {
                @stream_select($r, $w, $e, 0, Process::TIMEOUT_PRECISION * 1E6);
            } elseif ($this->fileHandles) {
                usleep(Process::TIMEOUT_PRECISION * 1E6);
            }
        }
        foreach ($this->fileHandles as $type => $fileHandle) {
            

            ['pipe', 'w'], // stderr         ];
    }

    public function getFiles(): array
    {
        return [];
    }

    public function readAndWrite(bool $blocking, bool $close = false): array
    {
        $this->unblock();
        $w = $this->write();

        $read = $e = [];
        $r = $this->pipes;
        unset($r[0]);

        // let's have a look if something changed in streams         set_error_handler($this->handleError(...));
        if (($r || $w) && false === stream_select($r, $w, $e, 0, $blocking ? Process::TIMEOUT_PRECISION * 1E6 : 0)) {
            restore_error_handler();
            // if a system call has been interrupted, forget about it, let's try again

            ['pipe', 'w'], // stderr         ];
    }

    public function getFiles(): array
    {
        return [];
    }

    public function readAndWrite(bool $blocking, bool $close = false): array
    {
        $this->unblock();
        $w = $this->write();

        $read = $e = [];
        $r = $this->pipes;
        unset($r[0]);

        // let's have a look if something changed in streams         set_error_handler($this->handleError(...));
        if (($r || $w) && false === stream_select($r, $w, $e, 0, $blocking ? Process::TIMEOUT_PRECISION * 1E6 : 0)) {
            restore_error_handler();
            // if a system call has been interrupted, forget about it, let's try again