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facade: fix file descriptor leak during comms errors #66

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facade: fix file descriptor leak during comms errors #66

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12 changes: 9 additions & 3 deletions nmoscommon/facade.py
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Original file line number Diff line number Diff line change
Expand Up @@ -55,6 +55,12 @@ def setup_ipc(self):
except Exception:
self.ipc = None

def close_ipc(self):
with self.lock:
if self.ipc:
self.ipc.close()
self.ipc = None

def register_service(self, href, proxy_path):
self.logger.writeInfo("Register service")
self.href = href
Expand All @@ -72,7 +78,7 @@ def register_service(self, href, proxy_path):
self.logger.writeInfo("Service registration failed: {}".format(self.debug_message(s)))
except Exception as e:
self.logger.writeError("Exception when registering service: {}".format(str(e)))
self.ipc = None
self.close_ipc()

def unregister_service(self):
if not self.ipc:
Expand All @@ -85,7 +91,7 @@ def unregister_service(self):
self.srv_registered = False
except Exception as e:
self.logger.writeError("Exception when unregistering service: {}".format(str(e)))
self.ipc = None
self.close_ipc()

def heartbeat_service(self):
if not self.ipc:
Expand All @@ -106,7 +112,7 @@ def heartbeat_service(self):
self.reregister_all()
except Exception as e:
self.logger.writeError("Exception when heartbeating service: {}".format(str(e)))
self.ipc = None
self.close_ipc()

# ONLY call this directly from within heartbeat_service!
# To cause a re-registration on failure, set self.reregister!
Expand Down