--- /dev/null
+# The MIT License (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 bt2.field_types
+import collections.abc
+import bt2.ctf_writer
+import bt2.stream
+import copy
+import bt2
+
+
+class _EventClassIterator(collections.abc.Iterator):
+ def __init__(self, stream_class):
+ self._stream_class = stream_class
+ self._at = 0
+
+ def __next__(self):
+ if self._at == len(self._stream_class):
+ raise StopIteration
+
+ ec_ptr = native_bt.ctf_stream_class_get_event_class_by_index(self._stream_class._ptr,
+ self._at)
+ assert(ec_ptr)
+ ev_id = native_bt.ctf_event_class_get_id(ec_ptr)
+ native_bt.put(ec_ptr)
+ utils._handle_ret(ev_id, "cannot get event class object's ID")
+ self._at += 1
+ return ev_id
+
+
+class StreamClass(object._Object, collections.abc.Mapping):
+ def __init__(self, name=None, id=None, packet_context_field_type=None,
+ event_header_field_type=None, event_context_field_type=None,
+ event_classes=None):
+ ptr = native_bt.ctf_stream_class_create_empty(None)
+
+ if ptr is None:
+ raise bt2.CreationError('cannot create stream class object')
+
+ super().__init__(ptr)
+
+ if name is not None:
+ self.name = name
+
+ if id is not None:
+ self.id = id
+
+ if packet_context_field_type is not None:
+ self.packet_context_field_type = packet_context_field_type
+
+ if event_header_field_type is not None:
+ self.event_header_field_type = event_header_field_type
+
+ if event_context_field_type is not None:
+ self.event_context_field_type = event_context_field_type
+
+ if event_classes is not None:
+ for event_class in event_classes:
+ self.add_event_class(event_class)
+
+ def __getitem__(self, key):
+ utils._check_int64(key)
+ ec_ptr = native_bt.ctf_stream_class_get_event_class_by_id(self._ptr,
+ key)
+
+ if ec_ptr is None:
+ raise KeyError(key)
+
+ return bt2.EventClass._create_from_ptr(ec_ptr)
+
+ def __len__(self):
+ count = native_bt.ctf_stream_class_get_event_class_count(self._ptr)
+ assert(count >= 0)
+ return count
+
+ def __iter__(self):
+ return _EventClassIterator(self)
+
+ def add_event_class(self, event_class):
+ utils._check_type(event_class, bt2.EventClass)
+ ret = native_bt.ctf_stream_class_add_event_class(self._ptr, event_class._ptr)
+ utils._handle_ret(ret, "cannot add event class object to stream class object's")
+
+ @property
+ def trace(self):
+ tc_ptr = native_bt.ctf_stream_class_get_trace(self._ptr)
+
+ if tc_ptr is not None:
+ return bt2.Trace._create_from_ptr(tc_ptr)
+
+ @property
+ def name(self):
+ return native_bt.ctf_stream_class_get_name(self._ptr)
+
+ @name.setter
+ def name(self, name):
+ utils._check_str(name)
+ ret = native_bt.ctf_stream_class_set_name(self._ptr, name)
+ utils._handle_ret(ret, "cannot set stream class object's name")
+
+ @property
+ def id(self):
+ id = native_bt.ctf_stream_class_get_id(self._ptr)
+
+ if id < 0:
+ return
+
+ return id
+
+ @id.setter
+ def id(self, id):
+ utils._check_int64(id)
+ ret = native_bt.ctf_stream_class_set_id(self._ptr, id)
+ utils._handle_ret(ret, "cannot set stream class object's ID")
+
+ @property
+ def clock(self):
+ clock_ptr = native_bt.ctf_stream_class_get_clock(self._ptr)
+
+ if clock_ptr is None:
+ return
+
+ return bt2.ctf_writer.CtfWriterClock._create_from_ptr(clock_ptr)
+
+ @clock.setter
+ def clock(self, clock):
+ utils._check_type(clock, bt2.ctf_writer.CtfWriterClock)
+ ret = native_bt.ctf_stream_class_set_clock(self._ptr, clock._ptr)
+ utils._handle_ret(ret, "cannot set stream class object's CTF writer clock object")
+
+ @property
+ def packet_context_field_type(self):
+ ft_ptr = native_bt.ctf_stream_class_get_packet_context_type(self._ptr)
+
+ if ft_ptr is None:
+ return
+
+ return bt2.field_types._create_from_ptr(ft_ptr)
+
+ @packet_context_field_type.setter
+ def packet_context_field_type(self, packet_context_field_type):
+ packet_context_field_type_ptr = None
+
+ if packet_context_field_type is not None:
+ utils._check_type(packet_context_field_type, bt2.field_types._FieldType)
+ packet_context_field_type_ptr = packet_context_field_type._ptr
+
+ ret = native_bt.ctf_stream_class_set_packet_context_type(self._ptr,
+ packet_context_field_type_ptr)
+ utils._handle_ret(ret, "cannot set stream class object's packet context field type")
+
+ @property
+ def event_header_field_type(self):
+ ft_ptr = native_bt.ctf_stream_class_get_event_header_type(self._ptr)
+
+ if ft_ptr is None:
+ return
+
+ return bt2.field_types._create_from_ptr(ft_ptr)
+
+ @event_header_field_type.setter
+ def event_header_field_type(self, event_header_field_type):
+ event_header_field_type_ptr = None
+
+ if event_header_field_type is not None:
+ utils._check_type(event_header_field_type, bt2.field_types._FieldType)
+ event_header_field_type_ptr = event_header_field_type._ptr
+
+ ret = native_bt.ctf_stream_class_set_event_header_type(self._ptr,
+ event_header_field_type_ptr)
+ utils._handle_ret(ret, "cannot set stream class object's event header field type")
+
+ @property
+ def event_context_field_type(self):
+ ft_ptr = native_bt.ctf_stream_class_get_event_context_type(self._ptr)
+
+ if ft_ptr is None:
+ return
+
+ return bt2.field_types._create_from_ptr(ft_ptr)
+
+ @event_context_field_type.setter
+ def event_context_field_type(self, event_context_field_type):
+ event_context_field_type_ptr = None
+
+ if event_context_field_type is not None:
+ utils._check_type(event_context_field_type, bt2.field_types._FieldType)
+ event_context_field_type_ptr = event_context_field_type._ptr
+
+ ret = native_bt.ctf_stream_class_set_event_context_type(self._ptr,
+ event_context_field_type_ptr)
+ utils._handle_ret(ret, "cannot set stream class object's event context field type")
+
+ def __call__(self, name=None, id=None):
+ if name is not None:
+ utils._check_str(name)
+
+ if id is None:
+ stream_ptr = native_bt.ctf_stream_create(self._ptr, name)
+ else:
+ stream_ptr = native_bt.ctf_stream_create_with_id(self._ptr, name, id)
+
+ if stream_ptr is None:
+ raise bt2.CreationError('cannot create stream object')
+
+ return bt2.stream._create_from_ptr(stream_ptr)
+
+ def __eq__(self, other):
+ if type(other) is not type(self):
+ return False
+
+ if self.addr == other.addr:
+ return True
+
+ self_event_classes = list(self.values())
+ other_event_classes = list(other.values())
+ self_props = (
+ self_event_classes,
+ self.name,
+ self.id,
+ self.packet_context_field_type,
+ self.event_header_field_type,
+ self.event_context_field_type,
+ self.clock,
+ )
+ other_props = (
+ other_event_classes,
+ other.name,
+ other.id,
+ other.packet_context_field_type,
+ other.event_header_field_type,
+ other.event_context_field_type,
+ other.clock,
+ )
+
+ return self_props == other_props
+
+ def _copy(self, ft_copy_func, ev_copy_func):
+ cpy = StreamClass()
+
+ if self.id is not None:
+ cpy.id = self.id
+
+ if self.name is not None:
+ cpy.name = self.name
+
+ if self.clock is not None:
+ cpy.clock = self.clock
+
+ cpy.packet_context_field_type = ft_copy_func(self.packet_context_field_type)
+ cpy.event_header_field_type = ft_copy_func(self.event_header_field_type)
+ cpy.event_context_field_type = ft_copy_func(self.event_context_field_type)
+
+ for event_class in self.values():
+ cpy.add_event_class(ev_copy_func(event_class))
+
+ return cpy
+
+ def __copy__(self):
+ return self._copy(lambda ft: ft, copy.copy)
+
+ def __deepcopy__(self, memo):
+ cpy = self._copy(copy.deepcopy, copy.deepcopy)
+ memo[id(self)] = cpy
+ return cpy
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