/**
* 解析crontab的定时格式，linux只支持到分钟/，这个类支持到秒
* @param string $crontab_string :
*
* 0 1 2 3 4 5
* * * * * * *
* - - - - - -
* | | | | | |
* | | | | | +----- day of week (0 - 6) (Sunday=0)
* | | | | +----- month (1 - 12)
* | | | +------- day of month (1 - 31)
* | | +--------- hour (0 - 23)
* | +----------- min (0 - 59)
* +------------- sec (0-59)
* @param int $start_time timestamp [default=current timestamp]
* @return int unix timestamp - 下一分钟内执行是否需要执行任务，如果需要，则把需要在那几秒执行返回
* @throws InvalidArgumentException 错误信息
*/
public static function parse($crontab_string, $start_time = null)
{
if (is_array($crontab_string)) {
return self::_parse_array($crontab_string, $start_time);
}
if (!preg_match('/^((\\*(\\/[0-9]+)?)|[0-9\\-\\,\\/]+)\\s+((\\*(\\/[0-9]+)?)|[0-9\\-\\,\\/]+)\\s+((\\*(\\/[0-9]+)?)|[0-9\\-\\,\\/]+)\\s+((\\*(\\/[0-9]+)?)|[0-9\\-\\,\\/]+)\\s+((\\*(\\/[0-9]+)?)|[0-9\\-\\,\\/]+)\\s+((\\*(\\/[0-9]+)?)|[0-9\\-\\,\\/]+)$/i', trim($crontab_string))) {
if (!preg_match('/^((\\*(\\/[0-9]+)?)|[0-9\\-\\,\\/]+)\\s+((\\*(\\/[0-9]+)?)|[0-9\\-\\,\\/]+)\\s+((\\*(\\/[0-9]+)?)|[0-9\\-\\,\\/]+)\\s+((\\*(\\/[0-9]+)?)|[0-9\\-\\,\\/]+)\\s+((\\*(\\/[0-9]+)?)|[0-9\\-\\,\\/]+)$/i', trim($crontab_string))) {
self::$error = "Invalid cron string: " . $crontab_string;
return false;
}
}
if ($start_time && !is_numeric($start_time)) {
self::$error = "\$start_time must be a valid unix timestamp ({$start_time} given)";
return false;
}
$cron = preg_split("/[\\s]+/i", trim($crontab_string));
$start = empty($start_time) ? time() : $start_time;
if (count($cron) == 6) {
$date = array('second' => self::_parse_cron_number($cron[0], 0, 59), 'minutes' => self::_parse_cron_number($cron[1], 0, 59), 'hours' => self::_parse_cron_number($cron[2], 0, 23), 'day' => self::_parse_cron_number($cron[3], 1, 31), 'month' => self::_parse_cron_number($cron[4], 1, 12), 'week' => self::_parse_cron_number($cron[5], 0, 6));
} elseif (count($cron) == 5) {
$date = array('second' => array(1 => 1), 'minutes' => self::_parse_cron_number($cron[0], 0, 59), 'hours' => self::_parse_cron_number($cron[1], 0, 23), 'day' => self::_parse_cron_number($cron[2], 1, 31), 'month' => self::_parse_cron_number($cron[3], 1, 12), 'week' => self::_parse_cron_number($cron[4], 0, 6));
}
if (in_array(intval(date('i', $start)), $date['minutes']) && in_array(intval(date('G', $start)), $date['hours']) && in_array(intval(date('j', $start)), $date['day']) && in_array(intval(date('w', $start)), $date['week']) && in_array(intval(date('n', $start)), $date['month'])) {
return $date['second'];
}
return null;
}
static function load_config()
{
$time = time();
$config = (include ROOT_PATH . DS . 'config.php');
foreach ($config as $id => $task) {
// 先支持秒（, *） 这两种
$ret = ParseCrontab::parse($task["time"], $time);
// 设置每秒的任务
foreach ($ret as $sec) {
self::$turntable[$sec][$id] = $task;
}
}
}
/**
* 检查时间是否运行
*
* @param array $time
* @param int
*/
protected function getRunTime(array $conf)
{
$timestamp = time();
if (isset($conf['interval'])) {
return ParseInterval::parse($conf, $timestamp);
} elseif (isset($conf['crontab'])) {
//var_dump($conf['crontab']);
//while (true) {
//$t = microtime(true);
$time = ParseCrontab::parse($conf, $timestamp);
//echo "nowIs :" . date('Y-m-d H:i:s', $timestamp) . "\t" . $time . " : " . date('Y-m-d H:i:s', $time) . "\tuseTime:" .
// (microtime(true) - $t) . "\n";
return $time;
//$timestamp += 1;
//usleep(50000);
//}
}
return 9999999999.0;
}
/**
* 解析星期
*
* @param string $set
* @param string $nowd
* @param string $noww
* @return array
*/
protected static function fieldWeek($set, $nowd, $noww)
{
if (self::$isCeil) {
$noww++;
$nowd++;
}
$noww %= 7;
self::$isCeil = false;
if (!is_numeric($set)) {
$parse = self::parseCronNumbers($set, 0, 6);
$set = $parse[0];
foreach ($parse as $value) {
if ($noww <= $value) {
$set = $value;
break;
}
}
}
$set = intval($set);
if ($noww > $set) {
self::reset(false);
$offset += 7 - ($noww - $set);
} elseif ($noww < $set) {
self::reset(false);
$offset += $set - $noww;
} else {
$offset = $noww - $set;
}
$retval = array($nowd + $offset);
return $retval;
}
/**
* 根据配置载入需要执行的任务
*/
public static function load_config()
{
$time = time();
$config = self::$tasksHandle->getTasks(self::$taskParams);
foreach ($config as $id => $task) {
$ret = ParseCrontab::parse($task["rule"], $time);
if ($ret === false) {
Main::log_write(ParseCrontab::$error);
} elseif (!empty($ret)) {
TickTable::set_task($ret, array_merge($task, array("id" => $id)));
}
}
}
/**
* 根据配置载入需要执行的任务
*/
public static function load_config()
{
$time = time();
$config = LoadConfig::get_config();
foreach ($config as $id => $task) {
$ret = ParseCrontab::parse($task["time"], $time);
if ($ret === false) {
Main::log_write(ParseCrontab::$error);
} elseif (!empty($ret)) {
TurnTable::set_task($ret, array_merge($task, array("id" => $id)));
}
}
TurnTable::turn();
}
