public async Task Execute(BackgroundProcessContext context)
{
var lockKey = $"{_options.TopicPrefix}delay:lock";
long delay = 0; //毫秒
await _redisStorage.Lock(lockKey, lockTimeSpan, async() =>
{
var now = DateTime.Now;
var maxScore = DateUtils.GetTimeStamp(now);
var list = await _redisStorage.GetTopDueDealyJobId(maxScore + PreReadSecond * 1000, BatchCount); //多查询1秒的数据，便于精确控制延迟
foreach (var item in list)
{
if (context.IsShutdownRequested)
{
return;
}
if (_isStart == false)
{
return; //已经关闭了 就直接返回吧
}
if (item.Value > maxScore)
{
delay = item.Value - maxScore;
break;
}
var jobId = item.Key;
// 延时任务到期加入即时任务队列
await _redisStorage.DueDealyJobEnqueue(jobId);
}
if (list.Count == 0)//没有数据时
{
delay = PreReadSecond * 1000;
}
}, async() => await TaskEx.DelayNoException(PreReadSecond * 1000, context.CancellationToken)); //出现并发也休息一会
if (delay > 0)
{
var minDelay = Math.Min((int)delay, PreReadSecond * 1000);
_redisStorage.WaitForDelayJob(TimeSpan.FromMilliseconds(minDelay), context.CancellationToken);
//await TaskEx.DelayNoException(Math.Min((int)delay, PreReadSecond * 1000), context.CancellationToken);
}
}
public async Task Execute(BackgroundProcessContext context)
{
//var lockKey = $"{_options.TopicPrefix}delay:lock";
var lockKey = $"{_delayTopicName}:lock";
long delay = 0; //毫秒
await _redisStorage.Lock(lockKey, lockTimeSpan, async() =>
{
var now = DateTime.Now;
var maxScore = DateUtils.GetTimeStamp(now);
var list = await _redisStorage.GetTopDueDealyJobId(_delayTopicName, maxScore + PreReadSecond * 1000, BatchCount); //多查询1秒的数据，便于精确控制延迟
foreach (var item in list)
{
if (context.IsShutdownRequested)
{
return;
}
if (_isStart == false)
{
return; //已经关闭了 就直接返回吧
}
if (item.Value > maxScore) //预拉去了PreReadSecond秒的数据，可能有还没到时间的
{
delay = item.Value - maxScore;
break;
}
var jobId = item.Key;
// 延时任务到期加入即时任务队列
var hashEntities = await _redisStorage.HashGetAll(Helper.GetJobHashId(_options, jobId));//这里要出错了呢
JobData jobData = null;
try
{
jobData = JobData.ToJobData(hashEntities);
}
catch (Exception ex)
{
_logger.LogError(ex, $"RedisMessageBus解析延迟任务数据报错");
}
if (jobData != null)
{
await _redisStorage.DueDealyJobEnqueue(_delayTopicName, jobData);
}
else
{
_logger.LogError("RedisMessageBus延迟任务解析出错为空，这里就从hash中删除了");
await _redisStorage.RemoveNullDealyJob(_delayTopicName, jobId);
}
}
if (list.Count == 0)//没有数据时
{
delay = PreReadSecond * 1000;
}
}, async() => await TaskEx.DelayNoException(PreReadSecond * 1000, context.CancellationToken)); //出现并发也休息一会
if (delay > 0)
{
var minDelay = Math.Min((int)delay, PreReadSecond * 1000);
_redisStorage.WaitForDelayJob(TimeSpan.FromMilliseconds(minDelay), context.CancellationToken);
//await TaskEx.DelayNoException(Math.Min((int)delay, PreReadSecond * 1000), context.CancellationToken);
}
}