def _waitForStart(self, readPipe):
"""
Wait for the daemonization success.
@param readPipe: file descriptor to read start information from.
@type readPipe: C{int}
@return: code to be passed to C{os._exit}: 0 for success, 1 for error.
@rtype: C{int}
"""
data = untilConcludes(os.read, readPipe, 100)
dataRepr = _bytesRepr(data[2:])
if data != b"0":
msg = ("An error has occurred: {}\nPlease look at log "
"file for more information.\n".format(dataRepr))
untilConcludes(sys.__stderr__.write, msg)
return 1
return 0
def _waitForStart(self, readPipe):
"""
Wait for the daemonization success.
@param readPipe: file descriptor to read start information from.
@type readPipe: C{int}
@return: code to be passed to C{os._exit}: 0 for success, 1 for error.
@rtype: C{int}
"""
data = untilConcludes(os.read, readPipe, 100)
dataRepr = _bytesRepr(data[2:])
if data != b"0":
msg = ("An error has occurred: %s\nPlease look at log "
"file for more information.\n" % (dataRepr,))
untilConcludes(sys.__stderr__.write, msg)
return 1
return 0
def test_bytesReprPrefix(self):
"""
L{twisted.python.compat._bytesRepr} always prepends
``b`` to the returned repr on both Python 2 and 3.
"""
self.assertEqual(_bytesRepr(b'\x00'), "b'\\x00'")
