--- /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.values
+import bt2.stream
+import copy
+import bt2
+
+
+class _StreamClassIterator(collections.abc.Iterator):
+ def __init__(self, trace):
+ self._trace = trace
+ self._at = 0
+
+ def __next__(self):
+ if self._at == len(self._trace):
+ raise StopIteration
+
+ sc_ptr = native_bt.ctf_trace_get_stream_class_by_index(self._trace._ptr,
+ self._at)
+ assert(sc_ptr)
+ id = native_bt.ctf_stream_class_get_id(sc_ptr)
+ native_bt.put(sc_ptr)
+ assert(id >= 0)
+ self._at += 1
+ return id
+
+
+class _TraceStreams(collections.abc.Sequence):
+ def __init__(self, trace):
+ self._trace = trace
+
+ def __len__(self):
+ count = native_bt.ctf_trace_get_stream_count(self._trace._ptr)
+ assert(count >= 0)
+ return count
+
+ def __getitem__(self, index):
+ utils._check_uint64(index)
+
+ if index >= len(self):
+ raise IndexError
+
+ stream_ptr = native_bt.ctf_trace_get_stream_by_index(self._trace._ptr,
+ index)
+ assert(stream_ptr)
+ return bt2.stream._create_from_ptr(stream_ptr)
+
+
+class _TraceClockClassesIterator(collections.abc.Iterator):
+ def __init__(self, trace_clock_classes):
+ self._trace_clock_classes = trace_clock_classes
+ self._at = 0
+
+ def __next__(self):
+ if self._at == len(self._trace_clock_classes):
+ raise StopIteration
+
+ trace_ptr = self._trace_clock_classes._trace._ptr
+ cc_ptr = native_bt.ctf_trace_get_clock_class_by_index(trace_ptr, self._at)
+ assert(cc_ptr)
+ name = native_bt.ctf_clock_class_get_name(cc_ptr)
+ native_bt.put(cc_ptr)
+ assert(name is not None)
+ self._at += 1
+ return name
+
+
+class _TraceClockClasses(collections.abc.Mapping):
+ def __init__(self, trace):
+ self._trace = trace
+
+ def __getitem__(self, key):
+ utils._check_str(key)
+ cc_ptr = native_bt.ctf_trace_get_clock_class_by_name(self._trace._ptr,
+ key)
+
+ if cc_ptr is None:
+ raise KeyError(key)
+
+ return bt2.ClockClass._create_from_ptr(cc_ptr)
+
+ def __len__(self):
+ count = native_bt.ctf_trace_get_clock_class_count(self._trace._ptr)
+ assert(count >= 0)
+ return count
+
+ def __iter__(self):
+ return _TraceClockClassesIterator(self)
+
+
+class _TraceEnvIterator(collections.abc.Iterator):
+ def __init__(self, trace_env):
+ self._trace_env = trace_env
+ self._at = 0
+
+ def __next__(self):
+ if self._at == len(self._trace_env):
+ raise StopIteration
+
+ trace_ptr = self._trace_env._trace._ptr
+ entry_name = native_bt.ctf_trace_get_environment_field_name_by_index(trace_ptr,
+ self._at)
+ assert(entry_name is not None)
+ self._at += 1
+ return entry_name
+
+
+class _TraceEnv(collections.abc.MutableMapping):
+ def __init__(self, trace):
+ self._trace = trace
+
+ def __getitem__(self, key):
+ utils._check_str(key)
+ value_ptr = native_bt.ctf_trace_get_environment_field_value_by_name(self._trace._ptr,
+ key)
+
+ if value_ptr is None:
+ raise KeyError(key)
+
+ return bt2.values._create_from_ptr(value_ptr)
+
+ def __setitem__(self, key, value):
+ utils._check_str(key)
+ value = bt2.create_value(value)
+ ret = native_bt.ctf_trace_set_environment_field(self._trace._ptr,
+ key, value._ptr)
+ utils._handle_ret(ret, "cannot set trace class object's environment entry")
+
+ def __delitem__(self, key):
+ raise NotImplementedError
+
+ def __len__(self):
+ count = native_bt.ctf_trace_get_environment_field_count(self._trace._ptr)
+ assert(count >= 0)
+ return count
+
+ def __iter__(self):
+ return _TraceEnvIterator(self)
+
+
+class Trace(object._Object, collections.abc.Mapping):
+ def __init__(self, name=None, native_byte_order=None, env=None,
+ packet_header_field_type=None, clock_classes=None,
+ stream_classes=None):
+ ptr = native_bt.ctf_trace_create()
+
+ if ptr is None:
+ raise bt2.CreationError('cannot create trace class object')
+
+ super().__init__(ptr)
+
+ if name is not None:
+ self.name = name
+
+ if native_byte_order is not None:
+ self.native_byte_order = native_byte_order
+
+ if packet_header_field_type is not None:
+ self.packet_header_field_type = packet_header_field_type
+
+ if env is not None:
+ for key, value in env.items():
+ self.env[key] = value
+
+ if clock_classes is not None:
+ for clock_class in clock_classes:
+ self.add_clock_class(clock_class)
+
+ if stream_classes is not None:
+ for stream_class in stream_classes:
+ self.add_stream_class(stream_class)
+
+ def __getitem__(self, key):
+ utils._check_int64(key)
+ sc_ptr = native_bt.ctf_trace_get_stream_class_by_id(self._ptr, key)
+
+ if sc_ptr is None:
+ raise KeyError(key)
+
+ return bt2.StreamClass._create_from_ptr(sc_ptr)
+
+ def __len__(self):
+ count = native_bt.ctf_trace_get_stream_class_count(self._ptr)
+ assert(count >= 0)
+ return count
+
+ def __iter__(self):
+ return _StreamClassIterator(self)
+
+ def add_stream_class(self, stream_class):
+ utils._check_type(stream_class, bt2.StreamClass)
+ ret = native_bt.ctf_trace_add_stream_class(self._ptr, stream_class._ptr)
+ utils._handle_ret(ret, "cannot add stream class object to trace class object")
+
+ @property
+ def name(self):
+ return native_bt.ctf_trace_get_name(self._ptr)
+
+ @name.setter
+ def name(self, name):
+ utils._check_str(name)
+ ret = native_bt.ctf_trace_set_name(self._ptr, name)
+ utils._handle_ret(ret, "cannot set trace class object's name")
+
+ @property
+ def native_byte_order(self):
+ bo = native_bt.ctf_trace_get_native_byte_order(self._ptr)
+ assert(bo >= 0)
+ return bo
+
+ @native_byte_order.setter
+ def native_byte_order(self, native_byte_order):
+ utils._check_int(native_byte_order)
+ ret = native_bt.ctf_trace_set_native_byte_order(self._ptr, native_byte_order)
+ utils._handle_ret(ret, "cannot set trace class object's native byte order")
+
+ @property
+ def is_static(self):
+ is_static = native_bt.ctf_trace_is_static(self._ptr)
+ return is_static > 0
+
+ def set_is_static(self):
+ ret = native_bt.ctf_trace_set_is_static(self._ptr)
+ utils._handle_ret(ret, "cannot set trace object as static")
+
+ @property
+ def env(self):
+ return _TraceEnv(self)
+
+ @property
+ def clock_classes(self):
+ return _TraceClockClasses(self)
+
+ def add_clock_class(self, clock_class):
+ utils._check_type(clock_class, bt2.ClockClass)
+ ret = native_bt.ctf_trace_add_clock_class(self._ptr, clock_class._ptr)
+ utils._handle_ret(ret, "cannot add clock class object to trace class object")
+
+ @property
+ def streams(self):
+ return _TraceStreams(self)
+
+ @property
+ def packet_header_field_type(self):
+ ft_ptr = native_bt.ctf_trace_get_packet_header_type(self._ptr)
+
+ if ft_ptr is None:
+ return
+
+ return bt2.field_types._create_from_ptr(ft_ptr)
+
+ @packet_header_field_type.setter
+ def packet_header_field_type(self, packet_header_field_type):
+ packet_header_field_type_ptr = None
+
+ if packet_header_field_type is not None:
+ utils._check_type(packet_header_field_type, bt2.field_types._FieldType)
+ packet_header_field_type_ptr = packet_header_field_type._ptr
+
+ ret = native_bt.ctf_trace_set_packet_header_type(self._ptr,
+ packet_header_field_type_ptr)
+ utils._handle_ret(ret, "cannot set trace class object's packet header field type")
+
+ def __eq__(self, other):
+ if type(other) is not type(self):
+ # not comparing apples to apples
+ return False
+
+ if self.addr == other.addr:
+ return True
+
+ self_stream_classes = list(self.values())
+ self_clock_classes = list(self.clock_classes.values())
+ self_env = {key: val for key, val in self.env.items()}
+ other_stream_classes = list(other.values())
+ other_clock_classes = list(other.clock_classes.values())
+ other_env = {key: val for key, val in other.env.items()}
+ self_props = (
+ self_stream_classes,
+ self_clock_classes,
+ self_env,
+ self.name,
+ self.native_byte_order,
+ self.packet_header_field_type,
+ )
+ other_props = (
+ other_stream_classes,
+ other_clock_classes,
+ other_env,
+ other.name,
+ other.native_byte_order,
+ other.packet_header_field_type,
+ )
+ return self_props == other_props
+
+ def _copy(self, gen_copy_func, sc_copy_func):
+ cpy = Trace()
+
+ if self.name is not None:
+ cpy.name = self.name
+
+ cpy.packet_header_field_type = gen_copy_func(self.packet_header_field_type)
+
+ for key, val in self.env.items():
+ cpy.env[key] = gen_copy_func(val)
+
+ for clock_class in self.clock_classes.values():
+ cpy.add_clock_class(gen_copy_func(clock_class))
+
+ for stream_class in self.values():
+ cpy.add_stream_class(sc_copy_func(stream_class))
+
+ return cpy
+
+ def __copy__(self):
+ return self._copy(lambda obj: obj, copy.copy)
+
+ def __deepcopy__(self, memo):
+ cpy = self._copy(copy.deepcopy, copy.deepcopy)
+ memo[id(self)] = cpy
+ return cpy
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