private async Task ProcessQueue(string topic, BackgroundProcessContext context)
{
var startProcessTime = DateTime.Now;
int deleteCount = 0;
var length = 0;
var start = BatchCount * -1;
var end = -1;
do
{
var list = await _redisStorage.GetErrorJobId(topic, start, end);// -100,-1 //从队列的尾部抓取 -1=最后一个，-2=倒数第二个，...
length = list.Length;
if (context.IsShutdownRequested)
{
return;
}
deleteCount = await ProcessFailedJob(topic, list);//倒序处理
end = 0 - (length + 1 - deleteCount);
start = end - BatchCount + 1;
if (DateTime.Now - startProcessTime >= lockTimeSpan)
{
break;
}
}while (length > 0);
}