public int StartRunning() {
if (!IsMaster) return int.MinValue;
// 启用了服务发现的情况下, 检查是否有其他的Master存在
if (ServiceDiscovery.Instance != null) {
var discover_name = ServiceDiscovery.GetDiscoverName(GetNameKey());
var task_checkstate = ServiceDiscovery.Instance.GetSchedServiceState(discover_name);
Task.WaitAll(task_checkstate);
var master_state = task_checkstate.Result;
if (master_state != null) {
Console.WriteLine($"Error : master already exist ({Prefix}).");
return int.MinValue;
}
}
//标记以Master方式运行
RunningAsMaster = true;
CreateContext().RecordAlive().Wait();
var time_start = PerformStartTime.Add(Math.Ceiling((DateTime.UtcNow - PerformStartTime).TotalMilliseconds /
Interval.TotalMilliseconds) * Interval);
var offset_start = time_start - DateTime.UtcNow;
Timer = new Timer(async t => {
var ctx = CreateContext(); // 创建演出上下文
await ctx.RecordAlive();
if (!Enabled) return;
await OnUpdate(ctx);
if (!await ctx.SetCurrentStatus(PerformContext.Status.Started)) return; // 尝试标记开始, 如果已经开始，退出
if (!await ctx.Lock()) return; // 尝试上活锁, 如果加锁失败, 退出
try {
await OnPerform(ctx);
await ctx.SetCurrentStatus(PerformContext.Status.Completed); //标记完成
} catch (Exception ex) {
await ctx.SetCurrentStatus(PerformContext.Status.Error); //标记错误
_logger.LogError($"Sechedule {ctx.CurrRoundKey} Error : {ex.Message}");
} finally {
await ctx.Unlock();
}
}, null, offset_start, Interval);
return offset_start.Seconds;
}
public DateTime RoundToDateTime(int round) {
return PerformStartTime.Add(TimeSpan.FromMilliseconds(round * PerformSpan.TotalMilliseconds));
}