--- /dev/null
+# The MIT License (MIT)
+#
+# Copyright (c) 2016-2017 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.clock_class
+import bt2.packet
+import bt2.stream
+import bt2.fields
+import numbers
+import copy
+import abc
+import bt2
+
+
+def _create_from_ptr(ptr):
+ # recreate the event class wrapper of this event's class (the
+ # identity could be different, but the underlying address should be
+ # the same)
+ event_class_ptr = native_bt.ctf_event_get_class(ptr)
+ utils._handle_ptr(event_class_ptr, "cannot get event object's class")
+ event_class = bt2.EventClass._create_from_ptr(event_class_ptr)
+ event = _Event._create_from_ptr(ptr)
+ event._event_class = event_class
+ return event
+
+
+class _Event(object._Object):
+ @property
+ def event_class(self):
+ return self._event_class
+
+ @property
+ def name(self):
+ return self._event_class.name
+
+ @property
+ def id(self):
+ return self._event_class.id
+
+ @property
+ def packet(self):
+ packet_ptr = native_bt.ctf_event_get_packet(self._ptr)
+
+ if packet_ptr is None:
+ return packet_ptr
+
+ return bt2.packet._Packet._create_from_ptr(packet_ptr)
+
+ @packet.setter
+ def packet(self, packet):
+ utils._check_type(packet, bt2.packet._Packet)
+ ret = native_bt.ctf_event_set_packet(self._ptr, packet._ptr)
+ utils._handle_ret(ret, "cannot set event object's packet object")
+
+ @property
+ def stream(self):
+ stream_ptr = native_bt.ctf_event_get_stream(self._ptr)
+
+ if stream_ptr is None:
+ return stream_ptr
+
+ return bt2.stream._Stream._create_from_ptr(stream_ptr)
+
+ @property
+ def header_field(self):
+ field_ptr = native_bt.ctf_event_get_header(self._ptr)
+
+ if field_ptr is None:
+ return
+
+ return bt2.fields._create_from_ptr(field_ptr)
+
+ @header_field.setter
+ def header_field(self, header_field):
+ header_field_ptr = None
+
+ if header_field is not None:
+ utils._check_type(header_field, bt2.fields._Field)
+ header_field_ptr = header_field._ptr
+
+ ret = native_bt.ctf_event_set_header(self._ptr, header_field_ptr)
+ utils._handle_ret(ret, "cannot set event object's header field")
+
+ @property
+ def stream_event_context_field(self):
+ field_ptr = native_bt.ctf_event_get_stream_event_context(self._ptr)
+
+ if field_ptr is None:
+ return
+
+ return bt2.fields._create_from_ptr(field_ptr)
+
+ @stream_event_context_field.setter
+ def stream_event_context_field(self, stream_event_context):
+ stream_event_context_ptr = None
+
+ if stream_event_context is not None:
+ utils._check_type(stream_event_context, bt2.fields._Field)
+ stream_event_context_ptr = stream_event_context._ptr
+
+ ret = native_bt.ctf_event_set_stream_event_context(self._ptr,
+ stream_event_context_ptr)
+ utils._handle_ret(ret, "cannot set event object's stream event context field")
+
+ @property
+ def context_field(self):
+ field_ptr = native_bt.ctf_event_get_event_context(self._ptr)
+
+ if field_ptr is None:
+ return
+
+ return bt2.fields._create_from_ptr(field_ptr)
+
+ @context_field.setter
+ def context_field(self, context):
+ context_ptr = None
+
+ if context is not None:
+ utils._check_type(context, bt2.fields._Field)
+ context_ptr = context._ptr
+
+ ret = native_bt.ctf_event_set_event_context(self._ptr, context_ptr)
+ utils._handle_ret(ret, "cannot set event object's context field")
+
+ @property
+ def payload_field(self):
+ field_ptr = native_bt.ctf_event_get_event_payload(self._ptr)
+
+ if field_ptr is None:
+ return
+
+ return bt2.fields._create_from_ptr(field_ptr)
+
+ @payload_field.setter
+ def payload_field(self, payload):
+ payload_ptr = None
+
+ if payload is not None:
+ utils._check_type(payload, bt2.fields._Field)
+ payload_ptr = payload._ptr
+
+ ret = native_bt.ctf_event_set_event_payload(self._ptr, payload_ptr)
+ utils._handle_ret(ret, "cannot set event object's payload field")
+
+ def _get_clock_value_cycles(self, clock_class_ptr):
+ clock_value_ptr = native_bt.ctf_event_get_clock_value(self._ptr,
+ clock_class_ptr)
+
+ if clock_value_ptr is None:
+ return
+
+ ret, cycles = native_bt.ctf_clock_value_get_value(clock_value_ptr)
+ native_bt.put(clock_value_ptr)
+ utils._handle_ret(ret, "cannot get clock value object's cycles")
+ return cycles
+
+ def clock_value(self, clock_class):
+ utils._check_type(clock_class, bt2.ClockClass)
+ clock_value_ptr = native_bt.ctf_event_get_clock_value(self._ptr,
+ clock_class._ptr)
+
+ if clock_value_ptr is None:
+ return
+
+ clock_value = bt2.clock_class._create_clock_value_from_ptr(clock_value_ptr)
+ return clock_value
+
+ def add_clock_value(self, clock_value):
+ utils._check_type(clock_value, bt2.clock_class._ClockValue)
+ ret = native_bt.ctf_event_set_clock_value(self._ptr,
+ clock_value._ptr)
+ utils._handle_ret(ret, "cannot set event object's clock value")
+
+ def __getitem__(self, key):
+ utils._check_str(key)
+ payload_field = self.payload_field
+
+ if payload_field is not None and key in payload_field:
+ return payload_field[key]
+
+ context_field = self.context_field
+
+ if context_field is not None and key in context_field:
+ return context_field[key]
+
+ sec_field = self.stream_event_context_field
+
+ if sec_field is not None and key in sec_field:
+ return sec_field[key]
+
+ header_field = self.header_field
+
+ if header_field is not None and key in header_field:
+ return header_field[key]
+
+ packet = self.packet
+
+ if packet is None:
+ raise KeyError(key)
+
+ pkt_context_field = packet.context_field
+
+ if pkt_context_field is not None and key in pkt_context_field:
+ return pkt_context_field[key]
+
+ pkt_header_field = packet.header_field
+
+ if pkt_header_field is not None and key in pkt_header_field:
+ return pkt_header_field[key]
+
+ raise KeyError(key)
+
+ @property
+ def _clock_classes(self):
+ stream_class = self.event_class.stream_class
+
+ if stream_class is None:
+ return []
+
+ trace = stream_class.trace
+
+ if trace is None:
+ return []
+
+ clock_classes = []
+
+ for clock_class in trace.clock_classes.values():
+ clock_classes.append(clock_class)
+
+ return clock_classes
+
+ @property
+ def _clock_class_ptrs(self):
+ return [cc._ptr for cc in self._clock_classes]
+
+ def __eq__(self, other):
+ if type(other) is not type(self):
+ return False
+
+ if self.addr == other.addr:
+ return True
+
+ self_clock_values = {}
+ other_clock_values = {}
+
+ for clock_class_ptr in self._clock_class_ptrs:
+ self_clock_values[int(clock_class_ptr)] = self._get_clock_value_cycles(clock_class_ptr)
+
+ for clock_class_ptr in other._clock_class_ptrs:
+ other_clock_values[int(clock_class_ptr)] = self._get_clock_value_cycles(clock_class_ptr)
+
+ self_props = (
+ self.header_field,
+ self.stream_event_context_field,
+ self.context_field,
+ self.payload_field,
+ self_clock_values,
+ )
+ other_props = (
+ other.header_field,
+ other.stream_event_context_field,
+ other.context_field,
+ other.payload_field,
+ other_clock_values,
+ )
+ return self_props == other_props
+
+ def _copy(self, copy_func):
+ cpy = self.event_class()
+
+ # copy fields
+ cpy.header_field = copy_func(self.header_field)
+ cpy.stream_event_context_field = copy_func(self.stream_event_context_field)
+ cpy.context_field = copy_func(self.context_field)
+ cpy.payload_field = copy_func(self.payload_field)
+
+ # Copy known clock value references. It's not necessary to copy
+ # clock class or clock value objects because once a clock value
+ # is created from a clock class, the clock class is frozen.
+ # Thus even if we copy the clock class, the user cannot modify
+ # it, therefore it's useless to copy it.
+ for clock_class in self._clock_classes:
+ clock_value = self.clock_value(clock_class)
+
+ if clock_value is not None:
+ cpy.add_clock_value(clock_value)
+
+ return cpy
+
+ def __copy__(self):
+ return self._copy(copy.copy)
+
+ def __deepcopy__(self, memo):
+ cpy = self._copy(copy.deepcopy)
+ memo[id(self)] = cpy
+ return cpy
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