Label more internal processes

This is to improve error messages

Author: nathanl

lib/db_connection/connection_pool.ex

@@ -51,6 +51,7 @@ defmodule DBConnection.ConnectionPool do
 
   @impl GenServer
   def init({mod, opts}) do
+    Util.set_label(__MODULE__)
     DBConnection.register_as_pool(mod)
 
     queue = :ets.new(__MODULE__.Queue, [:protected, :ordered_set, decentralized_counters: true])

lib/db_connection/connection_pool/pool.ex

@@ -1,6 +1,7 @@
 defmodule DBConnection.ConnectionPool.Pool do
   @moduledoc false
   use Supervisor, restart: :temporary
+  alias DBConnection.Util
 
   def start_supervised(tag, mod, opts) do
     DBConnection.Watcher.watch(
@@ -15,6 +16,7 @@ defmodule DBConnection.ConnectionPool.Pool do
 
   @impl true
   def init({owner, tag, mod, opts}) do
+    Util.set_label(__MODULE__)
     size = Keyword.get(opts, :pool_size, 1)
 
     if size < 1, do: raise(ArgumentError, "pool size must be greater or equal to 1, got #{size}")

lib/db_connection/ownership/manager.ex

@@ -71,6 +71,7 @@ defmodule DBConnection.Ownership.Manager do
 
   @impl true
   def init({module, owner_opts, pool_opts}) do
+    Util.set_label(__MODULE__)
     DBConnection.register_as_pool(module)
 
     ets =

lib/db_connection/telemetry_listener.ex

@@ -60,6 +60,7 @@ defmodule DBConnection.TelemetryListener do
   """
 
   use GenServer
+  alias DBConnection.Util
 
   @doc "Starts a telemetry listener"
   @spec start_link(GenServer.options()) :: {:ok, pid()}
@@ -69,6 +70,7 @@ defmodule DBConnection.TelemetryListener do
 
   @impl GenServer
   def init(nil) do
+    Util.set_label(__MODULE__)
     {:ok, %{monitoring: %{}}}
   end
 

lib/db_connection/watcher.ex

@@ -3,6 +3,7 @@ defmodule DBConnection.Watcher do
   @name __MODULE__
 
   use GenServer
+  alias DBConnection.Util
 
   def start_link(_) do
     GenServer.start_link(__MODULE__, :ok, name: @name)
@@ -14,6 +15,7 @@ defmodule DBConnection.Watcher do
 
   @impl true
   def init(:ok) do
+    Util.set_label(__MODULE__)
     Process.flag(:trap_exit, true)
     {:ok, {%{}, %{}}}
   end