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6 | Copyright CiviCRM LLC (c) 2004-2018 |
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8 | This file is a part of CiviCRM. |
10 | CiviCRM is free software; you can copy, modify, and distribute it |
11 | under the terms of the GNU Affero General Public License |
12 | Version 3, 19 November 2007 and the CiviCRM Licensing Exception. |
14 | CiviCRM is distributed in the hope that it will be useful, but |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
17 | See the GNU Affero General Public License for more details. |
19 | You should have received a copy of the GNU Affero General Public |
20 | License and the CiviCRM Licensing Exception along |
21 | with this program; if not, contact CiviCRM LLC |
22 | at info[AT]civicrm[DOT]org. If you have questions about the |
23 | GNU Affero General Public License or the licensing of CiviCRM, |
24 | see the CiviCRM license FAQ at http://civicrm.org/licensing |
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30 * @copyright CiviCRM LLC (c) 2004-2018
34 * Simple static helpers for network operations
36 class CRM_Utils_Network
{
38 * Try connecting to a TCP service; if it fails, retry. Repeat until serverStartupTimeOut elapses.
42 * @param int $serverStartupTimeOut
44 * @param float $interval
45 * Seconds to wait in between pollings.
48 * TRUE if service is online
50 public static function waitForServiceStartup($host, $port, $serverStartupTimeOut, $interval = 0.333) {
52 $end = $start +
$serverStartupTimeOut;
54 $interval_usec = (int) 1000000 * $interval;
56 while (!$found && $end >= time()) {
57 $found = self
::checkService($host, $port, $end - time());
61 usleep($interval_usec);
67 * Check whether a TCP service is available on $host and $port.
71 * @param string $serverConnectionTimeOut
75 public static function checkService($host, $port, $serverConnectionTimeOut) {
76 $old_error_reporting = error_reporting();
77 error_reporting($old_error_reporting & ~E_WARNING
);
79 $fh = fsockopen($host, $port, $errno, $errstr, $serverConnectionTimeOut);
82 error_reporting($old_error_reporting);
86 catch (Exception
$e) {
88 error_reporting($old_error_reporting);