def check(self, mode, triggers=None):
"""Check if timing is configured."""
if triggers is None:
triggers = list()
pvs_2_init = self.get_pvname_2_defval_dict(mode, triggers)
for prop, defval in pvs_2_init.items():
try:
prop_sts = _get_pair_sprb(prop)[1]
except TypeError:
continue
pvobj = Timing._pvs[prop_sts]
if not pvobj.wait_for_connection(TIMEOUT_CONNECTION):
return False
if prop_sts.propty_name == 'Src':
defval = Timing.cycle_idx[prop_sts.device_name]
if prop_sts.propty_name.endswith(('Duration', 'Delay')):
tol = 0.008 * 15
if not _isclose(pvobj.value, defval, abs_tol=tol):
# print(pvobj.pvname, pvobj.value, defval)
return False
elif isinstance(defval, (_np.ndarray, list, tuple)):
if _np.any(pvobj.value[0:len(defval)] != defval):
# print(pvobj.pvname, pvobj.value, defval)
return False
elif pvobj.value != defval:
# print(pvobj.pvname, pvobj.value, defval)
return False
return True
def is_close(a, b, msg="", **isclose_kwargs):
"""Assert that math.isclose returns True based on the given values."""
assert _isclose(a, b, **isclose_kwargs), _msg_concat(
msg,
"Expected '{}' to be close to '{}'{}".format(
a, b, _format_if(": kwargs: {}", isclose_kwargs)),
)
def check(self, mode, triggers=None):
"""Check if timing is configured."""
if triggers is None:
triggers = list()
pvs_2_init = self.get_pvname_2_defval_dict(mode, triggers)
for prop, defval in pvs_2_init.items():
prop_sts = prop.replace('SP', 'RB').replace('Sel', 'Sts')
pvobj = Timing._pvs[prop_sts]
if not pvobj.wait_for_connection(TIMEOUT_CONNECTION):
return False
if prop_sts.propty_name.endswith(('Duration', 'Delay')):
tol = 0.008 * 15
if not _isclose(pvobj.value, defval, abs_tol=tol):
# print(pvobj.pvname, pvobj.value, defval)
return False
elif isinstance(defval, (_np.ndarray, list, tuple)):
if _np.any(pvobj.value[0:len(defval)] != defval):
# print(pvobj.pvname, pvobj.value, defval)
return False
elif pvobj.value != defval:
# print(pvobj.pvname, pvobj.value, defval)
return False
return True
def almost_equal(actual, expected, places=2, msg=''):
# Set relative tolerance to 0 because we don't want that messing up the places check.
relative_tolerance = 0
absolute_tolerance = 10.0**(-places)
assert _isclose(expected,
actual,
rel_tol=relative_tolerance,
abs_tol=absolute_tolerance), _msg_concat(
msg, "Expected '{}' to be almost equal to '{}'".format(
actual, expected))
def isclose(a: float, b: float) -> bool:
"""Determine whether two single-precision floating-point numbers
are close in value.
For the values to be considered close, the relative difference
between them must be smaller than FLT_EPSILON.
-inf, inf and NaN behave similarly to the IEEE 754 Standard.
That is, NaN is not close to anything, even itself.
inf and -inf are only close to themselves.
"""
return _isclose(a, b, rel_tol=FLT_EPSILON)
def smart_dir_sync(
src_dir, dst_dir, mtime_tolerance=2.0,
pathname_xform=lambda sub_path, file: os.path.join(sub_path, file)
):
"""Recursively copy a directory, skipping any files that don't appear to
require updating.
:param str src_dir: The directory to copy from.
:param str dst_dir: The directory to copy to.
:param float mtime_tolerance:
How many seconds to tolerate in differences between the mtime of
a file in ``src_dir`` and an existing file of the same name in
``dst_dir``. This is especially useful for FAT filesystems, which have
a 2-second resolution.
:param function filename_xform:
An optional function that translates a pathname from ``src_dir`` before
being written to ``dst_dir``. This can be used for stripping out
characters that may not be supported on the filesystem of ``dst_dir``.
The function should take 2 strings as arguments, representing the
current subdirectory(s), if any, under the ``dst_dir``;
and the filename. The function should return a single string
representing both strings after undergoing any desired transformations
and concatenated together.
"""
for dir_path, dir_names, filenames in os.walk(src_dir):
print('src_dir=' + src_dir + ', dir_path=' + dir_path)
sub_path = os.path.relpath(dir_path, src_dir)
for d in dir_names:
src_pathname = os.path.join(src_dir, sub_path, d)
dst_pathname = os.path.join(dst_dir, pathname_xform(sub_path, d))
if not os.path.exists(dst_pathname):
os.mkdir(dst_pathname)
for f in filenames:
print('sub_path = ' + sub_path)
src_pathname = os.path.join(src_dir, sub_path, f)
dst_pathname = os.path.join(dst_dir, pathname_xform(sub_path, f))
print('< ' + src_pathname)
print('> ' + dst_pathname)
if (
os.path.exists(dst_pathname)
and _isclose(
os.path.getmtime(src_pathname),
os.path.getmtime(dst_pathname),
abs_tol=mtime_tolerance
)
and os.path.getsize(dst_pathname) ==
os.path.getsize(src_pathname)
):
continue
shutil.copy(src_pathname, dst_pathname)
set_mtime(dst_pathname, os.path.getmtime(src_pathname))
def almost_equal(actual, expected, places=2, msg=""):
"""Check that actual and expected are within `places` equal."""
# Set relative tolerance to 0 because we don't want that messing up the places check
relative_tolerance = 0
absolute_tolerance = 10.0**(-places)
if _isclose(expected,
actual,
rel_tol=relative_tolerance,
abs_tol=absolute_tolerance):
return ""
return _msg_concat(
msg,
"Expected '{}' to be almost equal to '{}'".format(actual, expected))
def is_close(a, b, msg="", **isclose_kwargs):
"""Check that math.isclose returns True based on the given values."""
if _isclose(a, b, **isclose_kwargs):
return ""
return _msg_concat(
msg,
"Expected '{}' to be close to '{}', "
"but they differ by '{}', a difference of '{}%'.{}".format(
a,
b,
abs(a - b),
percent_diff(a, b),
_format_if(": kwargs: {}", isclose_kwargs),
),
)
def is_close(a, b, msg='', **isclose_kwargs):
'''Assert that math.isclose returns True based on the given values.'''
assert _isclose(a, b, **isclose_kwargs), _msg_concat(
msg, "Expected '{}' to be close to '{}'{}".format(
a, b, _format_if(': kwargs: {}', isclose_kwargs)))
def igual(a,b):
'''Função math.isclose com rel_tol=0.05'''
return _isclose(a,b,rel_tol=0.05)
def _update_value(self, value):
""" Update the value and depending on it the status and severity. """
value = self._constrain_value(value)
status, severity = self._calculate_status_severity(value)
old_value = self._attributes.get('value')
if is_sequence(value) != is_sequence(old_value):
# If old and new_value differ in wether they are sequences or not
# we can't compare them.
value_changed = True
elif is_sequence(value) and len(value) != len(old_value):
# If the lenth of both sequences are different we can't
# compare them either.
value_changed = True
else:
if self._type in (ca.Type.FLOAT, ca.Type.DOUBLE):
# Floating point types can't be compare with the equal
# operator because of rounding errors
isclose = lambda a, b: _isclose(a, b, rel_tol=self._relative_tolerance, abs_tol=self._absolute_tolerance)
if is_sequence(value):
# sequences are compared element-wise
if numpy and (isinstance(value, numpy.ndarray) or isinstance(old_value, numpy.ndarray)):
value_changed = not numpy.allclose(value, old_value, rtol=self._relative_tolerance, atol=self._absolute_tolerance)
else:
value_changed = not all(map(lambda x: isclose(x[0], x[1]), zip(value, old_value)))
else:
value_changed = not isclose(value, old_value)
else:
# Integer types are compared with the equal operator
if numpy and (isinstance(value, numpy.ndarray) or isinstance(old_value, numpy.ndarray)):
value_changed = not numpy.all(numpy.equal(value, old_value))
else:
# For simple sequences this compares element-wise
value_changed = value != old_value
if value_changed:
self._attributes['value'] = value
# Deadbands are only defined for number types
check_deadbands = self._type not in (ca.Type.STRING, ca.Type.ENUM)
if is_sequence(value) != is_sequence(old_value):
# If the values differ in wether they are sequences or not,
# deadbands can't be used.
check_deadbands = False
elif is_sequence(value) and len(value) != len(old_value):
# If the lenth of both sequences are different we can't
# use the deadbands either.
check_deadbands = False
if check_deadbands:
if is_sequence(value):
# Look at the maximum difference between the old values
# and the new ones.
diff = max(map(lambda x: abs(x[0] - x[1]), zip(value, old_value)))
else:
diff = abs(value - old_value)
if diff >= self._value_deadband:
self._outstanding_events |= ca.Events.VALUE
if diff >= self._archive_deadband:
self._outstanding_events |= ca.Events.ARCHIVE
else:
self._outstanding_events |= ca.Events.VALUE | ca.Events.ARCHIVE
self._update_status_severity(status, severity)