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-rw-r--r--Lib/socketserver.py20
1 files changed, 19 insertions, 1 deletions
diff --git a/Lib/socketserver.py b/Lib/socketserver.py
index c8a8db1950e..261e28e6415 100644
--- a/Lib/socketserver.py
+++ b/Lib/socketserver.py
@@ -180,6 +180,7 @@ class BaseServer:
- process_request(request, client_address)
- shutdown_request(request)
- close_request(request)
+ - service_actions()
- handle_error()
Methods for derived classes:
@@ -236,6 +237,8 @@ class BaseServer:
poll_interval)
if self in r:
self._handle_request_noblock()
+
+ self.service_actions()
finally:
self.__shutdown_request = False
self.__is_shut_down.set()
@@ -250,6 +253,14 @@ class BaseServer:
self.__shutdown_request = True
self.__is_shut_down.wait()
+ def service_actions(self):
+ """Called by the serve_forever() loop.
+
+ May be overridden by a subclass / Mixin to implement any code that
+ needs to be run during the loop.
+ """
+ pass
+
# The distinction between handling, getting, processing and
# finishing a request is fairly arbitrary. Remember:
#
@@ -550,9 +561,15 @@ class ForkingMixIn:
"""
self.collect_children()
+ def service_actions(self):
+ """Collect the zombie child processes regularly in the ForkingMixin.
+
+ service_actions is called in the BaseServer's serve_forver loop.
+ """
+ self.collect_children()
+
def process_request(self, request, client_address):
"""Fork a new subprocess to process the request."""
- self.collect_children()
pid = os.fork()
if pid:
# Parent process
@@ -560,6 +577,7 @@ class ForkingMixIn:
self.active_children = []
self.active_children.append(pid)
self.close_request(request)
+ return
else:
# Child process.
# This must never return, hence os._exit()!