bt2: Add `_Clock*Const` classes and adapt tests

[babeltrace.git] / src / bindings / python / bt2 / bt2 / clock_snapshot.py

# The MIT License (MIT)
#
# Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com>
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from bt2 import native_bt, object, utils
import numbers
from bt2 import clock_class as bt2_clock_class
import functools


@functools.total_ordering
class _ClockSnapshotConst(object._UniqueObject):
    @property
    def clock_class(self):
        cc_ptr = native_bt.clock_snapshot_borrow_clock_class_const(self._ptr)
        assert cc_ptr is not None
        return bt2_clock_class._ClockClassConst._create_from_ptr_and_get_ref(cc_ptr)

    @property
    def value(self):
        return native_bt.clock_snapshot_get_value(self._ptr)

    @property
    def ns_from_origin(self):
        status, ns = native_bt.clock_snapshot_get_ns_from_origin(self._ptr)
        utils._handle_func_status(
            status, "cannot get clock snapshot's nanoseconds from origin"
        )
        return ns

    def __eq__(self, other):
        if not isinstance(other, numbers.Integral):
            return NotImplemented

        return self.value == int(other)

    def __lt__(self, other):
        if not isinstance(other, numbers.Integral):
            return NotImplemented

        return self.value < int(other)


class _UnknownClockSnapshot:
    pass