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getting rid of a Func allocation #841

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Merged
lukebakken merged 4 commits into from
May 20, 2020
Merged

getting rid of a Func allocation #841

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1b628e3
getting rid of a Func allocation
bollhals May 20, 2020
f821abb
Fix compilation error, add a lock because GetOrAdd is not atomic.
lukebakken May 20, 2020
2b85e7e
Refactor other use of ConcurrentDictionary GetOrAdd
lukebakken May 20, 2020
2860c5c
Fix the comment
lukebakken May 20, 2020
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11 changes: 9 additions & 2 deletions projects/RabbitMQ.Client/client/impl/AsyncConsumerWorkService.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -9,13 +9,20 @@ namespace RabbitMQ.Client.Impl
internal sealed class AsyncConsumerWorkService : ConsumerWorkService
{
private readonly ConcurrentDictionary<IModel, WorkPool> _workPools = new ConcurrentDictionary<IModel, WorkPool>();
private readonly Func<IModel, WorkPool> _startNewWorkPoolFunc = model => StartNewWorkPool(model);

public void Schedule<TWork>(ModelBase model, TWork work) where TWork : Work
{
_workPools.GetOrAdd(model, StartNewWorkPool).Enqueue(work);
/*
* rabbitmq/rabbitmq-dotnet-client#841
* https://docs.microsoft.com/en-us/dotnet/api/system.collections.concurrent.concurrentdictionary-2.getoradd
* Note that the value delegate is not atomic but the Schedule method will not be called concurrently.
*/
WorkPool workPool = _workPools.GetOrAdd(model, _startNewWorkPoolFunc);
workPool.Enqueue(work);
}

private WorkPool StartNewWorkPool(IModel model)
private static WorkPool StartNewWorkPool(IModel model)
{
var newWorkPool = new WorkPool(model as ModelBase);
newWorkPool.Start();
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13 changes: 10 additions & 3 deletions projects/RabbitMQ.Client/client/impl/ConsumerWorkService.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -5,16 +5,23 @@

namespace RabbitMQ.Client.Impl
{
class ConsumerWorkService
internal class ConsumerWorkService
{
private readonly ConcurrentDictionary<IModel, WorkPool> _workPools = new ConcurrentDictionary<IModel, WorkPool>();
private readonly Func<IModel, WorkPool> _startNewWorkPoolFunc = model => StartNewWorkPool(model);

public void AddWork(IModel model, Action fn)
{
_workPools.GetOrAdd(model, StartNewWorkPool).Enqueue(fn);
/*
* rabbitmq/rabbitmq-dotnet-client#841
* https://docs.microsoft.com/en-us/dotnet/api/system.collections.concurrent.concurrentdictionary-2.getoradd
* Note that the value delegate is not atomic but the AddWork method will not be called concurrently.
*/
WorkPool workPool = _workPools.GetOrAdd(model, _startNewWorkPoolFunc);
workPool.Enqueue(fn);
}

private WorkPool StartNewWorkPool(IModel model)
private static WorkPool StartNewWorkPool(IModel model)
{
var newWorkPool = new WorkPool();
newWorkPool.Start();
Expand Down