internal PrioritizedQueue(string resetEventName, BackgroundServiceTask <T> serviceTask, ushort priority)
{
_itemWasReceivedSignal = new TaskEventWaitHandle(false, resetEventName, priority);
SafeWaitHandle = _itemWasReceivedSignal.SafeWaitHandle;
serviceTask.AddResetEvent(_itemWasReceivedSignal);
_itemWasReceivedSignal.Queue = this;
}
/// <summary>
/// Called, when the job started.
/// </summary>
/// <param name="params"></param>
/// <returns></returns>
public override bool OnStartJob(JobParameters @params)
{
var jobs = @params.Extras.GetStringArray("jobs");
var encryption = @params.Extras.GetString("encryption");
foreach (var item in jobs)
{
var job = JObject.Parse(item);
//Create a new instance of the background job.
var jobType = Type.GetType((string)job.GetValue("job"));
if (jobType == null)
{
JobFinished(@params, false);
return(false);
}
var encryptionKey = JsonConvert.DeserializeObject <EncryptionKey>(encryption);
var backgroundJob = (BaseBackgroundJob)Activator.CreateInstance(jobType, (int)job.GetValue("id"), new DatabaseService(new Sqlite(), encryptionKey), new Notification());
backgroundJob.Init((string)job.GetValue("data"));
_parameters = @params;
_serviceTask = new BackgroundServiceTask(this);
_serviceTask.Execute(backgroundJob);
}
return(true);
}
/// <summary>
/// Called, if the job is stopped.
/// </summary>
/// <param name="params"></param>
/// <returns></returns>
public override bool OnStopJob(JobParameters @params)
{
if (_serviceTask != null && !_serviceTask.IsCancelled)
{
_serviceTask.Cancel(true);
}
_serviceTask = null;
SendBroadcast();
return(false);
}