/// <summary>
/// This is a sequential scheduler that benefits from not blocking Corrade
/// and guarrantees that any Corrade thread spawned this way will only execute
/// until the previous thread spawned this way has completed.
/// </summary>
/// <param name="s">the code to execute as a ThreadStart delegate</param>
/// <param name="m">the maximum amount of threads</param>
/// <param name="millisecondsTimeout">
/// the timeout in milliseconds before considering the previous thread as vanished
/// </param>
public void SpawnSequential(Action s, uint m, uint millisecondsTimeout)
{
if (smartThreadPool.InUseThreads > m)
{
return;
}
var threadType = this.threadType;
smartThreadPool.QueueWorkItem(() =>
{
// protect inner thread
try
{
SequentialThreadCompletedEvent.Wait((int)millisecondsTimeout);
SequentialThreadCompletedEvent.Reset();
s();
SequentialThreadCompletedEvent.Set();
}
catch (Exception ex)
{
Corrade.Feedback(
Reflection.GetDescriptionFromEnumValue(
global::Corrade.Enumerations.ConsoleMessage.UNCAUGHT_EXCEPTION_FOR_THREAD),
Reflection.GetNameFromEnumValue(threadType),
ex?.Message,
ex.PrettyPrint(),
ex?.InnerException?.Message);
}
});
}
/// <summary>
/// This is an ad-hoc scheduler where threads will be executed in a
/// first-come first-served fashion.
/// </summary>
/// <param name="s">the code to execute as a ThreadStart delegate</param>
/// <param name="m">the maximum amount of threads</param>
public void Spawn(Action s, uint m)
{
if (smartThreadPool.InUseThreads > m)
{
return;
}
var threadType = this.threadType;
smartThreadPool.QueueWorkItem(() =>
{
// protect inner thread
try
{
s();
}
catch (Exception ex)
{
Corrade.Feedback(
Reflection.GetDescriptionFromEnumValue(
global::Corrade.Enumerations.ConsoleMessage.UNCAUGHT_EXCEPTION_FOR_THREAD),
Reflection.GetNameFromEnumValue(threadType), ex.PrettyPrint());
}
});
}
/// <summary>
/// 后台业务处理推送统一调用接口
/// 未持久化，可能出现丢失
/// </summary>
/// <param name="func">委托方法</param>
/// <param name="workItemPriority">任务等级，默认的是正常</param>
public void Push(Amib.Threading.Action func, WorkItemPriority workItemPriority = WorkItemPriority.Normal)
{
_workItemsGroup.QueueWorkItem(func, workItemPriority);
}
/// <summary>
/// This is a fairness-oriented group/time-based scheduler that monitors
/// the execution time of threads for each configured group and favors
/// threads for the configured groups that have the smallest accumulated
/// execution time.
/// </summary>
/// <param name="s">the code to execute as a ThreadStart delegate</param>
/// <param name="m">the maximum amount of threads</param>
/// <param name="groupUUID">the UUID of the group</param>
/// <param name="expiration">the time in milliseconds after which measurements are expunged</param>
public void Spawn(Action s, uint m, UUID groupUUID, uint expiration)
{
// Don't accept to schedule bogus groups.
if (groupUUID.Equals(UUID.Zero))
{
return;
}
if (smartThreadPool.InUseThreads > m)
{
return;
}
var workItemPriority = WorkItemPriority.Normal;
lock (GroupExecutionSetLock)
{
// Clear threads that are not restricted anymore due to expiration.
GroupExecutionSet.RemoveWhere(o => (DateTime.UtcNow - o.TimeStamp).Milliseconds > expiration);
var groupExecution = GroupExecutionSet.FirstOrDefault(o => o.GroupUUID.Equals(groupUUID));
// Adjust the priority depending on the time spent executing a command.
if (GroupExecutionSet.Count > 1 && !groupExecution.Equals(default(GroupExecution)))
{
workItemPriority =
threadRangePriority[
(int)(100L * groupExecution.ExecutionTime / GroupExecutionSet.Sum(o => o.ExecutionTime))];
}
}
// Spawn.
var threadType = this.threadType;
smartThreadPool.QueueWorkItem(() =>
{
// protect inner thread
try
{
ThreadExecutuionStopwatch.Restart();
s();
ThreadExecutuionStopwatch.Stop();
lock (GroupExecutionSetLock)
{
// add or change the mean execution time for a group
var groupExecution =
GroupExecutionSet.AsParallel().FirstOrDefault(o => o.GroupUUID.Equals(groupUUID));
switch (!groupExecution.Equals(default(GroupExecution)))
{
case true:
//GroupExecutionSet.Remove(groupExecution);
groupExecution.ExecutionTime = (groupExecution.ExecutionTime +
ThreadExecutuionStopwatch.ElapsedMilliseconds) / 2;
groupExecution.TimeStamp = DateTime.UtcNow;
//GroupExecutionSet.Add(groupExecution);
break;
default:
GroupExecutionSet.Add(new GroupExecution
{
GroupUUID = groupUUID,
ExecutionTime = ThreadExecutuionStopwatch.ElapsedMilliseconds,
TimeStamp = DateTime.UtcNow
});
break;
}
}
}
catch (Exception ex)
{
Corrade.Feedback(
Reflection.GetDescriptionFromEnumValue(
global::Corrade.Enumerations.ConsoleMessage.UNCAUGHT_EXCEPTION_FOR_THREAD),
Reflection.GetNameFromEnumValue(threadType), ex.PrettyPrint());
}
}, workItemPriority);
}
public void Start(LicenseInfo licenseInfo)
{
if (isRunning)
{
return;
}
/*
* 1. Get all active clients from db
* 2. generate multi-thread for boardcasting message
*/
int activeClient = 0;
try
{
isRunning = true;
using (var db = new MyDbContext())
{
#region Prepare Parameters
db.Configuration.ProxyCreationEnabled = false;
db.Configuration.LazyLoadingEnabled = false;
var listClients = ListClientWithIPAddress(licenseInfo, out activeClient, true);
List <RmsClient> broadcastClient = new List <RmsClient>();
foreach (var client in listClients)
{
if (client.UseLocalInfo == true)
{
var location = db.RmsLocations.Find(client.LocationId);
if (location != null)
{
if (CanBroadCast(location))
{
broadcastClient.Add(client);
}
}
}
else
{
broadcastClient.Add(client);
}
}
// Log into RMS_Log_Monitoring
int refID = AddLogMonitoring(activeClient, true, null);
#region Initial Thread Pool
var maxThreadConfig = db.RmsSystemConfigs.Find("MonitoringEngine.MaxThread");
int minThread = 1;
int maxThread = 1;
if (maxThreadConfig != null)
{
maxThread = Convert.ToInt32(maxThreadConfig.Value ?? maxThreadConfig.DefaultValue);
if (maxThread > broadcastClient.Count)
{
maxThread = broadcastClient.Count;
}
}
if (broadcastClient.Count > 0)
{
STPStartInfo stpStartInfo = new STPStartInfo();
stpStartInfo.MaxWorkerThreads = maxThread;
stpStartInfo.IdleTimeout = 60 * 1000;
stpStartInfo.MinWorkerThreads = minThread;
stpStartInfo.PerformanceCounterInstanceName = "RMSCounter";
stpStartInfo.EnableLocalPerformanceCounters = true;
stp = new SmartThreadPool(stpStartInfo);
}
#endregion
foreach (var client in broadcastClient)
{
RmsClient _client = client;
Amib.Threading.Action broadcastAliveMessage = () =>
{
BroadcastAliveMessage(_client, refID);
};
stp.QueueWorkItem(broadcastAliveMessage);
}
#endregion
}
}
catch (Exception ex)
{
string exLicense = "License is invalid";
if (ex.Message.ToLower().IndexOf(exLicense.ToLower()) > -1)
{
// Log into RMS_Log_Monitoring
AddLogMonitoring(activeClient, false, ex.Message);
}
throw new RMSWebException(this, "0500", "Start failed. " + ex.Message, ex, false);
}
finally
{
if (stp != null)
{
stp.WaitForIdle();
System.Threading.Thread.Sleep(1000);
if (!stp.IsShuttingdown)
{
stp.Shutdown();
}
stp.Dispose();
}
isRunning = false;
}
}
public IWorkItemResult QueueWorkItem <T>(Action <T> action, T item, bool background = true, WorkItemPriority itemPriority = WorkItemPriority.Normal, ThreadPriority priority = ThreadPriority.Normal)
{
var pool = getPool(background, priority, itemPriority);
return(pool.QueueWorkItem(action, item, itemPriority));
}
