�PNG  IHDR��;���IDATx��ܻn�0���K�� �)(�pA��� ���7�LeG{�� �§㻢|��ذaÆ 6lذaÆ 6lذaÆ 6lom��$^�y���ذag�5bÆ 6lذaÆ 6lذa{���� 6lذaÆ �`����}H�Fkm�,�m����Ӫ���ô�ô!� �x�|'ܢ˟;�E:���9�&ᶒ�}�{�v]�n&�6� �h��_��t�ڠ͵-ҫ���Z;��Z$�.�P���k�ž)�!��o���>}l�eQfJ�T��u і���چ��\��X=8��Rن4`Vw�l�>����n�G�^��i�s��"ms�$�u��i��?w�bs[m�6�K4���O���.�4��%����/����b�C%��t ��M�ז� �-l�G6�mrz2���s�%�9��s@���-�k�9�=���)������k�B5����\��+͂�Zsٲ ��Rn��~G���R���C����� �wIcI��n7jJ���hۛNCS|���j0��8y�iHKֶۛ�k�Ɉ+;Sz������L/��F�*\��Ԕ�#"5��m�2��[S��������=�g��n�a�P�e�ғ�L�� lذaÆ 6l�^k��̱aÆ 6lذaÆ 6lذa;���� �_��ذaÆ 6lذaÆ 6lذaÆ ���R���IEND�B` * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Process; use Symfony\Component\Process\Exception\RuntimeException; /** * Provides a way to continuously write to the input of a Process until the InputStream is closed. * * @author Nicolas Grekas */ class InputStream implements \IteratorAggregate { /** @var callable|null */ private $onEmpty = null; private $input = []; private $open = true; /** * Sets a callback that is called when the write buffer becomes empty. */ public function onEmpty(callable $onEmpty = null) { $this->onEmpty = $onEmpty; } /** * Appends an input to the write buffer. * * @param resource|string|int|float|bool|\Traversable|null $input The input to append as scalar, * stream resource or \Traversable */ public function write($input) { if (null === $input) { return; } if ($this->isClosed()) { throw new RuntimeException(sprintf('"%s" is closed.', static::class)); } $this->input[] = ProcessUtils::validateInput(__METHOD__, $input); } /** * Closes the write buffer. */ public function close() { $this->open = false; } /** * Tells whether the write buffer is closed or not. */ public function isClosed() { return !$this->open; } /** * @return \Traversable */ public function getIterator() { $this->open = true; while ($this->open || $this->input) { if (!$this->input) { yield ''; continue; } $current = array_shift($this->input); if ($current instanceof \Iterator) { yield from $current; } else { yield $current; } if (!$this->input && $this->open && null !== $onEmpty = $this->onEmpty) { $this->write($onEmpty($this)); } } } }