Move looping into a service, rather than the kernel.

src/lib/core/kernel.py

@@ -3,7 +3,6 @@
 import inspect
 
 from src.lib.util.registry import RegistryFactory, RegistryDict, RegistryList
-from src.lib.core.services.loop import LoopService
 
 # Define a list-like container for storing registered services.
 ServiceList = RegistryFactory("ServiceList", RegistryList)
@@ -15,27 +14,10 @@ class Kernel(object):
     responsible for service registration and orchestration.
     """
     def __init__(self, **services):
-        # Populate the service name registry with a loop service.
-        self.services = ServiceNameRegistry()
-        self.register_services(loop=LoopService())
-
-    """Execution management methods."""
-
-    def loop(self):
-        """Run the main application loop."""
-        # Use the output service as a context manager.
-        with self.service("output") as display:
-            # Start the root Component's loop.
-            root = self.service("root")
-            while root.alive:
-                # Allow registered services to react to the loop.
-                for service in self.service("loop"):
-                    service.loop()
-
-            # Continue looping if necessary.
-            if root.after_loop().get("relaunch"):
-                # TODO: Reset kernel and services as needed
-                return True
+        # Initialize the service registry.
+        self.services = ServiceRegistry()
+        # Register the provided services.
+        self.register_services(**services)
 
     """Service registration methods."""
 

src/lib/core/services/loop.py

@@ -1,7 +1,24 @@
 """A service that contacts other services during the event loop."""
 
+from src.lib.core.kernel import Kernel
 from src.lib.core.services.service import ServiceMixin
 from src.lib.util.registry import RegistryList
 
 class LoopService(RegistryList, ServiceMixin):
-    pass
+    @Kernel.helper
+    def loop(self):
+        """Run the main application loop."""
+        # Use the output service as a context manager.
+        with self.service("output") as display:
+            # Start the root Component's loop.
+            root = self.service("root")
+            while root.alive:
+                # Allow registered services to react to the loop.
+                for service in self.service("loop"):
+                    if hasattr(service, "loop"):
+                        service.loop()
+
+            # Continue looping if necessary.
+            if root.after_loop().get("relaunch"):
+                # TODO: Reset kernel and services as needed
+                return True