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<?php
namespace api\controllers;
use common\models\psources\CoinExtract;
use Yii;
use api\base\BaseController;
class SecKillController extends BaseController
{
public function actionIndex()
{
echo hash(141414, 'The quick brown fox jumped over the lazy dog.');
exit;
$num = $this->randomFloat(1, 3);
$expire = 5;
$nowTime = time();
//新的过期时间
$expTime = $nowTime + $expire;
$redis = \Yii::$app->redis_es;
list($good_id, $limit_min_amount, $limit_max_amount) = $redis->hmget('productInfo:16', 'good_id', 'limit_min_amount', 'limit_max_amount');
if ($num < $limit_min_amount || $num > $limit_max_amount) {
$this->msg = 'err amount';
$this->code = -1;
goto doEnd;
}
$lock_key = 'lock:' . $good_id;
//var_dump($redis->del($lock_key));exit;
$stock = $redis->get('stock:' . $good_id);
if (0 == $stock) {
$this->msg = 'weclome again';
goto doEnd;
}
//$is_locked = $redis->set($lock_key, $expTime, 'ex', 5, 'nx');
$is_locked = $redis->setnx($lock_key, $expTime);
if (!$is_locked) {
$this->msg = 'ahaaa, locked';
$this->code = -1;
goto doEnd;
}
$redis->setex($lock_key, 5, $expTime);
$redis->incrbyfloat('stock:' . $good_id, -$num);
$order_info = [
'good_id' => $good_id,
'amount' => $num,
'time' => date('Y-m-d H:i:s')
];
$redis->lpush('order_info', json_encode($order_info));
//开始其他业务逻辑
//下单。。。。。。
//用户信息写入redis，禁止重复下单
if ($redis->get('stock:' . $good_id) <= $limit_min_amount) {
//下架操作。。。。。。
$redis->set('stock:' . $good_id, 0);
}
$redis->del($lock_key);
$expireTime = $redis->get('lock:' . $good_id);
if ($expireTime < $nowTime) {
}
doEnd :
return ['code' => $this->code, 'msg' => $this->msg];
}
function actionTest()
{
$model = CoinExtract::find()->where(['id' => 8])->one();
if (!$model->total > 0) {
$this->msg = 'weclome again';
goto doEnd;
}
$model->total = $model->total - 1;
$model->save();
doEnd :
return ['code' => $this->code, 'msg' => $this->msg];
}
function randomFloat($min = 0, $max = 1)
{
return $min + mt_rand() / mt_getrandmax() * ($max - $min);
}
}