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Fixed: Unnecessary idle cpu usage

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ref #4386

(cherry picked from commit 5a69801877eb72899dd9867c39a1b88b7114fe5b)
This commit is contained in:
Taloth Saldono 2021-03-19 02:48:09 +01:00 committed by servarr
parent acb6fc01b3
commit 4eb6cb9dae
2 changed files with 39 additions and 4 deletions
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39
src/NzbDrone.Core/Messaging/Commands/CommandQueue.cs
View file

@ -23,6 +23,8 @@ public void Add(CommandModel item)
lock (_mutex)
{
_items.Add(item);
Monitor.PulseAll(_mutex);
}
}
@ -68,6 +70,8 @@ public void RemoveMany(IEnumerable<CommandModel> commands)
{
_items.Remove(command);
}
Monitor.PulseAll(_mutex);
}
}
@ -83,6 +87,8 @@ public bool RemoveIfQueued(int id)
{
_items.Remove(command);
rval = true;
Monitor.PulseAll(_mutex);
}
}
@ -102,18 +108,43 @@ public IEnumerable<CommandModel> GetConsumingEnumerable()
public IEnumerable<CommandModel> GetConsumingEnumerable(CancellationToken cancellationToken)
{
cancellationToken.Register(PulseAllConsumers);
while (!cancellationToken.IsCancellationRequested)
{
if (TryGet(out var command))
CommandModel command = null;
lock (_mutex)
{
if (cancellationToken.IsCancellationRequested)
{
break;
}
if (!TryGet(out command))
{
Monitor.Wait(_mutex);
continue;
}
}
if (command != null)
{
yield return command;
}
Thread.Sleep(10);
}
}
public bool TryGet(out CommandModel item)
public void PulseAllConsumers()
{
// Signal all consumers to reevaluate cancellation token
lock (_mutex)
{
Monitor.PulseAll(_mutex);
}
}
private bool TryGet(out CommandModel item)
{
var rval = true;
item = default(CommandModel);

4
src/NzbDrone.Core/Messaging/Commands/CommandQueueManager.cs
View file

@ -190,6 +190,8 @@ public void Start(CommandModel command)
public void Complete(CommandModel command, string message)
{
Update(command, CommandStatus.Completed, message);
_commandQueue.PulseAllConsumers();
}
public void Fail(CommandModel command, string message, Exception e)
@ -197,6 +199,8 @@ public void Fail(CommandModel command, string message, Exception e)
command.Exception = e.ToString();
Update(command, CommandStatus.Failed, message);
_commandQueue.PulseAllConsumers();
}
public void Requeue()