-# The MIT License (MIT)
+# SPDX-License-Identifier: MIT
#
# Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com>
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-from bt2 import native_bt, object, utils
+
+import uuid as uuidp
+import functools
import collections.abc
+
+from bt2 import error as bt2_error
+from bt2 import utils as bt2_utils
from bt2 import value as bt2_value
+from bt2 import object as bt2_object
from bt2 import stream as bt2_stream
+from bt2 import native_bt
from bt2 import stream_class as bt2_stream_class
-import bt2
-import functools
-import uuid as uuidp
def _bt2_trace_class():
self._trace = trace
def __getitem__(self, key):
- utils._check_str(key)
+ bt2_utils._check_str(key)
borrow_entry_fn = native_bt.trace_borrow_environment_entry_value_by_name_const
value_ptr = borrow_entry_fn(self._trace._ptr, key)
elif isinstance(value, int):
set_env_entry_fn = native_bt.trace_set_environment_entry_integer
else:
- raise TypeError('expected str or int, got {}'.format(type(value)))
+ raise TypeError("expected str or int, got {}".format(type(value)))
status = set_env_entry_fn(self._trace._ptr, key, value)
- utils._handle_func_status(status, "cannot set trace object's environment entry")
+ bt2_utils._handle_func_status(
+ status, "cannot set trace object's environment entry"
+ )
def __delitem__(self, key):
raise NotImplementedError
-class _TraceConst(object._SharedObject, collections.abc.Mapping):
- _get_ref = staticmethod(native_bt.trace_get_ref)
- _put_ref = staticmethod(native_bt.trace_put_ref)
+class _TraceConst(bt2_object._SharedObject, collections.abc.Mapping):
+ @staticmethod
+ def _get_ref(ptr):
+ native_bt.trace_get_ref(ptr)
+
+ @staticmethod
+ def _put_ref(ptr):
+ native_bt.trace_put_ref(ptr)
+
_borrow_stream_ptr_by_id = staticmethod(native_bt.trace_borrow_stream_by_id_const)
_borrow_stream_ptr_by_index = staticmethod(
native_bt.trace_borrow_stream_by_index_const
return count
def __getitem__(self, id):
- utils._check_uint64(id)
+ bt2_utils._check_uint64(id)
stream_ptr = self._borrow_stream_ptr_by_id(self._ptr, id)
return self._trace_env_pycls(self)
def add_destruction_listener(self, listener):
- '''Add a listener to be called when the trace is destroyed.'''
+ """Add a listener to be called when the trace is destroyed."""
if not callable(listener):
raise TypeError("'listener' parameter is not callable")
+ handle = bt2_utils._ListenerHandle(self.addr)
+
fn = native_bt.bt2_trace_add_destruction_listener
listener_from_native = functools.partial(
- _trace_destruction_listener_from_native, listener
+ _trace_destruction_listener_from_native, listener, handle
)
status, listener_id = fn(self._ptr, listener_from_native)
- utils._handle_func_status(
- status, 'cannot add destruction listener to trace object'
+ bt2_utils._handle_func_status(
+ status, "cannot add destruction listener to trace object"
)
- return utils._ListenerHandle(listener_id, self)
+ handle._set_listener_id(listener_id)
+
+ return handle
+
+ def remove_destruction_listener(self, listener_handle):
+ bt2_utils._check_type(listener_handle, bt2_utils._ListenerHandle)
+
+ if listener_handle._addr != self.addr:
+ raise ValueError(
+ "This trace destruction listener does not match the trace object."
+ )
+
+ if listener_handle._listener_id is None:
+ raise ValueError("This trace destruction listener was already removed.")
+
+ status = native_bt.trace_remove_destruction_listener(
+ self._ptr, listener_handle._listener_id
+ )
+ bt2_utils._handle_func_status(status)
+ listener_handle._invalidate()
class _Trace(_TraceConst):
_trace_env_pycls = property(lambda _: _TraceEnvironment)
def _name(self, name):
- utils._check_str(name)
+ bt2_utils._check_str(name)
status = native_bt.trace_set_name(self._ptr, name)
- utils._handle_func_status(status, "cannot set trace class object's name")
+ bt2_utils._handle_func_status(status, "cannot set trace class object's name")
_name = property(fset=_name)
def _user_attributes(self, user_attributes):
value = bt2_value.create_value(user_attributes)
- utils._check_type(value, bt2_value.MapValue)
+ bt2_utils._check_type(value, bt2_value.MapValue)
native_bt.trace_set_user_attributes(self._ptr, value._ptr)
_user_attributes = property(fset=_user_attributes)
def _uuid(self, uuid):
- utils._check_type(uuid, uuidp.UUID)
+ bt2_utils._check_type(uuid, uuidp.UUID)
native_bt.trace_set_uuid(self._ptr, uuid.bytes)
_uuid = property(fset=_uuid)
def create_stream(self, stream_class, id=None, name=None, user_attributes=None):
- utils._check_type(stream_class, bt2_stream_class._StreamClass)
+ bt2_utils._check_type(stream_class, bt2_stream_class._StreamClass)
if stream_class.assigns_automatic_stream_id:
if id is not None:
"id not provided, but stream class does not assign automatic stream ids"
)
- utils._check_uint64(id)
+ bt2_utils._check_uint64(id)
stream_ptr = native_bt.stream_create_with_id(
stream_class._ptr, self._ptr, id
)
if stream_ptr is None:
- raise bt2._MemoryError('cannot create stream object')
+ raise bt2_error._MemoryError("cannot create stream object")
stream = bt2_stream._Stream._create_from_ptr(stream_ptr)
return stream
-def _trace_destruction_listener_from_native(user_listener, trace_ptr):
+def _trace_destruction_listener_from_native(user_listener, handle, trace_ptr):
trace = _TraceConst._create_from_ptr_and_get_ref(trace_ptr)
user_listener(trace)
+ handle._invalidate()