Log PipeConnector events

tfw/components/pipe_io/pipe_connector/pipe_connector.py

@@ -1,3 +1,4 @@
+import logging
 from stat import S_ISFIFO
 from os import access, mkdir, stat, R_OK
 from os.path import exists
@@ -6,6 +7,8 @@ from pipe_io_server import PipeWriterServer
 
 from tfw.internals.inotify import InotifyObserver, InotifyFileCreatedEvent, InotifyFileDeletedEvent
 
+LOG = logging.getLogger(__name__)
+
 
 class PipeConnector:
     reader_pattern, writer_pattern = 'send', 'recv'
@@ -27,15 +30,17 @@ class PipeConnector:
         path = event.src_path
         if self._is_pipe(path):
             if isinstance(event, InotifyFileCreatedEvent):
-                self._create_pipe(path)
+                self._on_create_pipe(path)
+                LOG.debug('Connected to new pipe "%s"', path)
             elif isinstance(event, InotifyFileDeletedEvent):
-                self._delete_pipe(path)
+                self._on_delete_pipe(path)
+                LOG.debug('Disconnected from deleted pipe "%s"', path)
 
     @staticmethod
     def _is_pipe(path):
         return exists(path) and S_ISFIFO(stat(path).st_mode)
 
-    def _create_pipe(self, path):
+    def _on_create_pipe(self, path):
         if self._find_pipe(path):
             return
         server = None
@@ -61,7 +66,7 @@ class PipeConnector:
     def build_writer(self, path): # pylint: disable=no-self-use
         return PipeWriterServer(path, manage_pipes=False)
 
-    def _delete_pipe(self, path):
+    def _on_delete_pipe(self, path):
         pipes = self._find_pipe(path)
         if pipes:
             pipes[path].stop()