# THE SOFTWARE.
from bt2 import native_bt, object, utils
-import bt2.field_class
import collections.abc
-import bt2.value
-import bt2.stream
-import bt2.trace_class
+from bt2 import value as bt2_value
+from bt2 import stream as bt2_stream
+from bt2 import trace_class as bt2_trace_class
+from bt2 import stream_class as bt2_stream_class
import bt2
import functools
+import uuid as uuidp
+
+
+class _TraceEnv(collections.abc.MutableMapping):
+ def __init__(self, trace):
+ self._trace = trace
+
+ def __getitem__(self, key):
+ 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)
+
+ if value_ptr is None:
+ raise KeyError(key)
+
+ return bt2_value._create_from_ptr_and_get_ref(value_ptr)
+
+ def __setitem__(self, key, value):
+ if isinstance(value, str):
+ set_env_entry_fn = native_bt.trace_set_environment_entry_string
+ 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)))
+
+ status = set_env_entry_fn(self._trace._ptr, key, value)
+ utils._handle_func_status(status, "cannot set trace object's environment entry")
+
+ def __delitem__(self, key):
+ raise NotImplementedError
+
+ def __len__(self):
+ count = native_bt.trace_get_environment_entry_count(self._trace._ptr)
+ assert count >= 0
+ return count
+
+ def __iter__(self):
+ trace_ptr = self._trace_env._trace._ptr
+
+ for idx in range(len(self)):
+ borrow_entry_fn = native_bt.trace_borrow_environment_entry_by_index_const
+ entry_name, _ = borrow_entry_fn(trace_ptr, idx)
+ assert entry_name is not None
+ yield entry_name
def _trace_destruction_listener_from_native(user_listener, trace_ptr):
- trace = bt2.trace._Trace._create_from_ptr_and_get_ref(trace_ptr)
+ trace = _Trace._create_from_ptr_and_get_ref(trace_ptr)
user_listener(trace)
if stream_ptr is None:
raise KeyError(id)
- return bt2.stream._Stream._create_from_ptr_and_get_ref(stream_ptr)
+ return bt2_stream._Stream._create_from_ptr_and_get_ref(stream_ptr)
def __iter__(self):
for idx in range(len(self)):
def cls(self):
trace_class_ptr = native_bt.trace_borrow_class(self._ptr)
assert trace_class_ptr is not None
- return bt2.trace_class._TraceClass._create_from_ptr_and_get_ref(trace_class_ptr)
+ return bt2_trace_class._TraceClass._create_from_ptr_and_get_ref(trace_class_ptr)
@property
def name(self):
def _name(self, name):
utils._check_str(name)
- ret = native_bt.trace_set_name(self._ptr, name)
- utils._handle_ret(ret, "cannot set trace class object's name")
+ status = native_bt.trace_set_name(self._ptr, name)
+ utils._handle_func_status(status, "cannot set trace class object's name")
_name = property(fset=_name)
+ @property
+ def uuid(self):
+ uuid_bytes = native_bt.trace_get_uuid(self._ptr)
+ if uuid_bytes is None:
+ return
+
+ return uuidp.UUID(bytes=uuid_bytes)
+
+ def _uuid(self, uuid):
+ utils._check_type(uuid, uuidp.UUID)
+ native_bt.trace_set_uuid(self._ptr, uuid.bytes)
+
+ _uuid = property(fset=_uuid)
+
+ @property
+ def env(self):
+ return _TraceEnv(self)
+
def create_stream(self, stream_class, id=None, name=None):
- utils._check_type(stream_class, bt2.stream_class._StreamClass)
+ utils._check_type(stream_class, bt2_stream_class._StreamClass)
if stream_class.assigns_automatic_stream_id:
if id is not None:
- raise ValueError("id provided, but stream class assigns automatic stream ids")
+ raise ValueError(
+ "id provided, but stream class assigns automatic stream ids"
+ )
stream_ptr = native_bt.stream_create(stream_class._ptr, self._ptr)
else:
if id is None:
- raise ValueError("id not provided, but stream class does not assign automatic stream ids")
+ raise ValueError(
+ "id not provided, but stream class does not assign automatic stream ids"
+ )
utils._check_uint64(id)
- stream_ptr = native_bt.stream_create_with_id(stream_class._ptr, self._ptr, id)
+ stream_ptr = native_bt.stream_create_with_id(
+ stream_class._ptr, self._ptr, id
+ )
if stream_ptr is None:
- raise bt2.CreationError('cannot create stream object')
+ raise bt2._MemoryError('cannot create stream object')
- stream = bt2.stream._Stream._create_from_ptr(stream_ptr)
+ stream = bt2_stream._Stream._create_from_ptr(stream_ptr)
if name is not None:
stream._name = name
if not callable(listener):
raise TypeError("'listener' parameter is not callable")
- fn = native_bt.py3_trace_add_destruction_listener
- listener_from_native = functools.partial(_trace_destruction_listener_from_native,
- listener)
+ fn = native_bt.bt2_trace_add_destruction_listener
+ listener_from_native = functools.partial(
+ _trace_destruction_listener_from_native, listener
+ )
- listener_id = fn(self._ptr, listener_from_native)
- if listener_id is None:
- utils._raise_bt2_error('cannot add destruction listener to trace object')
+ status, listener_id = fn(self._ptr, listener_from_native)
+ utils._handle_func_status(
+ status, 'cannot add destruction listener to trace object'
+ )
- return bt2._ListenerHandle(listener_id, self)
+ return utils._ListenerHandle(listener_id, self)
projects / babeltrace.git / blobdiff