# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
-__all__ = ['_TraceClass']
-
-import bt2
from bt2 import native_bt, utils, object
from bt2 import stream_class as bt2_stream_class
from bt2 import field_class as bt2_field_class
from bt2 import value as bt2_value
import collections.abc
import functools
+import bt2
def _trace_class_destruction_listener_from_native(user_listener, trace_class_ptr):
- trace_class = bt2_trace_class._TraceClass._create_from_ptr_and_get_ref(
- trace_class_ptr
- )
+ trace_class = _TraceClass._create_from_ptr_and_get_ref(trace_class_ptr)
user_listener(trace_class)
-class _TraceClass(object._SharedObject, collections.abc.Mapping):
+class _TraceClassConst(object._SharedObject, collections.abc.Mapping):
_get_ref = staticmethod(native_bt.trace_class_get_ref)
_put_ref = staticmethod(native_bt.trace_class_put_ref)
+ _borrow_stream_class_ptr_by_index = staticmethod(
+ native_bt.trace_class_borrow_stream_class_by_index_const
+ )
+ _borrow_stream_class_ptr_by_id = staticmethod(
+ native_bt.trace_class_borrow_stream_class_by_id_const
+ )
+ _stream_class_pycls = bt2_stream_class._StreamClassConst
+ _create_value_from_ptr_and_get_ref = staticmethod(
+ bt2_value._create_from_const_ptr_and_get_ref
+ )
- # Instantiate a trace of this class.
-
- def __call__(self, name=None, user_attributes=None, uuid=None, environment=None):
- trace_ptr = native_bt.trace_create(self._ptr)
-
- if trace_ptr is None:
- raise bt2._MemoryError('cannot create trace class object')
-
- trace = bt2_trace._Trace._create_from_ptr(trace_ptr)
-
- if name is not None:
- trace._name = name
-
- if user_attributes is not None:
- trace._user_attributes = user_attributes
-
- if uuid is not None:
- trace._uuid = uuid
-
- if environment is not None:
- for key, value in environment.items():
- trace.environment[key] = value
-
- return trace
+ @property
+ def user_attributes(self):
+ ptr = native_bt.trace_class_borrow_user_attributes(self._ptr)
+ assert ptr is not None
+ return self._create_value_from_ptr_and_get_ref(ptr)
# Number of stream classes in this trace class.
def __getitem__(self, key):
utils._check_uint64(key)
- sc_ptr = native_bt.trace_class_borrow_stream_class_by_id_const(self._ptr, key)
+ sc_ptr = self._borrow_stream_class_ptr_by_id(self._ptr, key)
if sc_ptr is None:
raise KeyError(key)
- return bt2_stream_class._StreamClass._create_from_ptr_and_get_ref(sc_ptr)
+ return self._stream_class_pycls._create_from_ptr_and_get_ref(sc_ptr)
def __iter__(self):
for idx in range(len(self)):
- sc_ptr = native_bt.trace_class_borrow_stream_class_by_index_const(
- self._ptr, idx
- )
+ sc_ptr = self._borrow_stream_class_ptr_by_index(self._ptr, idx)
assert sc_ptr is not None
id = native_bt.stream_class_get_id(sc_ptr)
yield id
+ @property
+ def assigns_automatic_stream_class_id(self):
+ return native_bt.trace_class_assigns_automatic_stream_class_id(self._ptr)
+
+ # Add a listener to be called when the trace class is destroyed.
+
+ def add_destruction_listener(self, listener):
+
+ if not callable(listener):
+ raise TypeError("'listener' parameter is not callable")
+
+ fn = native_bt.bt2_trace_class_add_destruction_listener
+ listener_from_native = functools.partial(
+ _trace_class_destruction_listener_from_native, listener
+ )
+
+ status, listener_id = fn(self._ptr, listener_from_native)
+ utils._handle_func_status(
+ status, 'cannot add destruction listener to trace class object'
+ )
+
+ return utils._ListenerHandle(listener_id, self)
+
+
+class _TraceClass(_TraceClassConst):
+ _borrow_stream_class_ptr_by_index = staticmethod(
+ native_bt.trace_class_borrow_stream_class_by_index
+ )
+ _borrow_stream_class_ptr_by_id = staticmethod(
+ native_bt.trace_class_borrow_stream_class_by_id
+ )
+ _stream_class_pycls = bt2_stream_class._StreamClass
+ _create_value_from_ptr_and_get_ref = staticmethod(
+ bt2_value._create_from_ptr_and_get_ref
+ )
+
+ # Instantiate a trace of this class.
+
+ def __call__(self, name=None, user_attributes=None, uuid=None, environment=None):
+ trace_ptr = native_bt.trace_create(self._ptr)
+
+ if trace_ptr is None:
+ raise bt2._MemoryError('cannot create trace class object')
+
+ trace = bt2_trace._Trace._create_from_ptr(trace_ptr)
+
+ if name is not None:
+ trace._name = name
+
+ if user_attributes is not None:
+ trace._user_attributes = user_attributes
+
+ if uuid is not None:
+ trace._uuid = uuid
+
+ if environment is not None:
+ for key, value in environment.items():
+ trace.environment[key] = value
+
+ return trace
+
def create_stream_class(
self,
id=None,
)
return sc
- @property
- def user_attributes(self):
- ptr = native_bt.trace_class_borrow_user_attributes(self._ptr)
- assert ptr is not None
- return bt2_value._create_from_ptr_and_get_ref(ptr)
-
def _user_attributes(self, user_attributes):
value = bt2_value.create_value(user_attributes)
utils._check_type(value, bt2_value.MapValue)
_user_attributes = property(fset=_user_attributes)
- @property
- def assigns_automatic_stream_class_id(self):
- return native_bt.trace_class_assigns_automatic_stream_class_id(self._ptr)
-
def _assigns_automatic_stream_class_id(self, auto_id):
utils._check_bool(auto_id)
return native_bt.trace_class_set_assigns_automatic_stream_class_id(
fc = bt2_field_class._create_field_class_from_ptr_and_get_ref(ptr)
self._set_field_class_user_attrs(fc, user_attributes)
return fc
-
- # Add a listener to be called when the trace class is destroyed.
-
- def add_destruction_listener(self, listener):
-
- if not callable(listener):
- raise TypeError("'listener' parameter is not callable")
-
- fn = native_bt.bt2_trace_class_add_destruction_listener
- listener_from_native = functools.partial(
- _trace_class_destruction_listener_from_native, listener
- )
-
- status, listener_id = fn(self._ptr, listener_from_native)
- utils._handle_func_status(
- status, 'cannot add destruction listener to trace class object'
- )
-
- return utils._ListenerHandle(listener_id, self)
projects / babeltrace.git / blobdiff