/**
* 批量设置键值(当键名不存在时)
* 只有当键值全部设置成功时,才返回true,否则返回false并尝试回滚
* @param array $sets 键值数组
* @return boolean 是否成功
*/
public function mSetNX($sets)
{
if ($this->driver->checkDriver()) {
if (method_exists($this->driver, 'mSetNX')) {
return $this->driver->mSetNX($sets);
} else {
$keys = [];
$status = true;
foreach ($sets as $key => $value) {
$status = $this->driver->setnx($key, $value);
if ($status) {
$keys[] = $key;
} else {
break;
}
}
//如果失败，尝试回滚，但不保证成功
if (!$status) {
foreach ($keys as $key) {
$this->driver->del($key);
}
}
return $status;
}
}
if ($this->driver->isFallback() && $this->type !== self::$config['fallback']) {
return $this->driver->backup()->mSetNX($sets);
}
return false;
}
