LockFree.EventStore 1.0.0

dotnet add package LockFree.EventStore --version 1.0.0
                    
NuGet\Install-Package LockFree.EventStore -Version 1.0.0
                    
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="LockFree.EventStore" Version="1.0.0" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="LockFree.EventStore" Version="1.0.0" />
                    
Directory.Packages.props
<PackageReference Include="LockFree.EventStore" />
                    
Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.
paket add LockFree.EventStore --version 1.0.0
                    
#r "nuget: LockFree.EventStore, 1.0.0"
                    
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
#:package LockFree.EventStore@1.0.0
                    
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.
#addin nuget:?package=LockFree.EventStore&version=1.0.0
                    
Install as a Cake Addin
#tool nuget:?package=LockFree.EventStore&version=1.0.0
                    
Install as a Cake Tool

LockFree.EventStore

Event store em memória, genérico, de baixa latência e lock-free para .NET. Ideal para cenários de monitoramento, métricas e eventos de domínio.

Principais Recursos

  • Escrita MPMC lock-free com descarte FIFO
  • Particionamento por chave para alta concorrência
  • Snapshots consistentes sem bloquear produtores
  • Agregações funcionais e consultas por janela temporal
  • Zero dependências externas, pronto para AOT/Trimming
  • API fluente para configuração avançada
  • Métricas e observabilidade integradas
  • Agregações especializadas (Sum, Average, Min, Max)

Exemplo de Uso Básico

var store = new EventStore<Order>();
store.TryAppend(new Order { Id = 1, Amount = 10m, Timestamp = DateTime.UtcNow });

var total = store.Aggregate(() => 0m, (acc, e) => acc + e.Amount,
    from: DateTime.UtcNow.AddMinutes(-10));

Construtores Disponíveis

// Construtor padrão
var store = new EventStore<Order>();

// Capacidade explícita
var store = new EventStore<Order>(capacity: 100_000);

// Capacidade e partições
var store = new EventStore<Order>(capacity: 50_000, partitions: 8);

// Configuração avançada
var store = new EventStore<Order>(new EventStoreOptions<Order>
{
    Capacity = 100_000,
    Partitions = 16,
    OnEventDiscarded = evt => Logger.LogTrace("Event discarded: {Event}", evt),
    OnCapacityReached = () => Metrics.IncrementCounter("eventstore.capacity_reached"),
    TimestampSelector = new OrderTimestampSelector()
});

// API fluente
var store = EventStore.For<Order>()
    .WithCapacity(100_000)
    .WithPartitions(8)
    .OnDiscarded(evt => Log(evt))
    .OnCapacityReached(() => NotifyAdmin())
    .WithTimestampSelector(new OrderTimestampSelector())
    .Create();

API Completa

  • TryAppend(event) — Adiciona evento, lock-free
  • Aggregate — Agrega valores por janela temporal com filtros opcionais
  • Snapshot() — Retorna cópia imutável dos eventos com filtros opcionais
  • CountEvents/Sum/Average/Min/Max — Agregações especializadas
  • Clear/Reset/Purge — Métodos de limpeza e manutenção
  • Query — Consultas flexíveis com filtros e janelas temporais
  • Statistics — Métricas para monitoramento e observabilidade
  • Count/Capacity/IsEmpty/IsFull/Partitions — Propriedades de estado

Performance

Projetado para alta concorrência e baixa latência. A ordem global entre partições é aproximada.

Limitações

  • Ordem global apenas aproximada entre partições
  • Capacidade fixa; eventos antigos são descartados ao exceder

Licença

MIT

Product Compatible and additional computed target framework versions.
.NET net9.0 is compatible.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.
  • net9.0

    • No dependencies.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
1.0.0 16 8/4/2025
0.1.3 13 8/2/2025
0.1.2 81 8/1/2025
0.1.1 78 8/1/2025