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asyncio, Tulip issue 139: Improve error messages on "fatal errors"

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Mention if the error was caused by a read or a write, and be more specific on
the object (ex: "pipe transport" instead of "transport").
This commit is contained in:
Victor Stinner 2014-02-19 01:40:41 +01:00
parent c098241342
commit 065ca25aae
6 changed files with 64 additions and 38 deletions
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14
Lib/asyncio/unix_events.py
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@ -271,7 +271,7 @@ def _read_ready(self):
except (BlockingIOError, InterruptedError):
pass
except OSError as exc:
self._fatal_error(exc)
self._fatal_error(exc, 'Fatal read error on pipe transport')
else:
if data:
self._protocol.data_received(data)
@ -291,11 +291,11 @@ def close(self):
if not self._closing:
self._close(None)
def _fatal_error(self, exc):
def _fatal_error(self, exc, message='Fatal error on pipe transport'):
# should be called by exception handler only
if not (isinstance(exc, OSError) and exc.errno == errno.EIO):
self._loop.call_exception_handler({
'message': 'Fatal transport error',
'message': message,
'exception': exc,
'transport': self,
'protocol': self._protocol,
@ -381,7 +381,7 @@ def write(self, data):
n = 0
except Exception as exc:
self._conn_lost += 1
self._fatal_error(exc)
self._fatal_error(exc, 'Fatal write error on pipe transport')
return
if n == len(data):
return
@ -406,7 +406,7 @@ def _write_ready(self):
# Remove writer here, _fatal_error() doesn't it
# because _buffer is empty.
self._loop.remove_writer(self._fileno)
self._fatal_error(exc)
self._fatal_error(exc, 'Fatal write error on pipe transport')
else:
if n == len(data):
self._loop.remove_writer(self._fileno)
@ -443,11 +443,11 @@ def close(self):
def abort(self):
self._close(None)
def _fatal_error(self, exc):
def _fatal_error(self, exc, message='Fatal error on pipe transport'):
# should be called by exception handler only
if not isinstance(exc, (BrokenPipeError, ConnectionResetError)):
self._loop.call_exception_handler({
'message': 'Fatal transport error',
'message': message,
'exception': exc,
'transport': self,
'protocol': self._protocol,