<PackageReference Include="Microsoft.Data.SqlClient" Version="7.1.0-preview3.26238.4" />

Microsoft.Data.SqlClient.ConnectionPool.ConnectionPoolSlots

sealed class ConnectionPoolSlots
A thread-safe collection with a fixed capacity. Avoids wasted work by reserving a slot before adding an item.
namespace Microsoft.Data.SqlClient.ConnectionPool { internal sealed class ConnectionPoolSlots { [System.Runtime.CompilerServices.NullableContext(0)] internal delegate DbConnectionInternal CreateCallback (); [System.Runtime.CompilerServices.NullableContext(0)] internal delegate void CleanupCallback (DbConnectionInternal connection); public Enumerator GetEnumerator(); } }