typedef unsigned long long uint64_t;
typedef long long int64_t;
typedef int bt_intern_str;
+typedef int64_t ssize_t;
/* =================================================================
PYTHON-COMPLEMENTS.H
struct bt_definition *field);
struct definition_sequence *_bt_python_get_sequence_from_def(
struct bt_definition *field);
+struct bt_declaration *_bt_python_get_array_element_declaration(
+ struct bt_declaration *field);
+struct bt_declaration *_bt_python_get_sequence_element_declaration(
+ struct bt_declaration *field);
+const char *_bt_python_get_array_string(struct bt_definition *field);
+const char *_bt_python_get_sequence_string(struct bt_definition *field);
int _bt_python_field_integer_get_signedness(const struct bt_ctf_field *field);
enum ctf_type_id _bt_python_get_field_type(const struct bt_ctf_field *field);
"""
Generator function to iterate over the events of open in the current
TraceCollection.
+
+ Due to limitations of the native Babeltrace API, only one event
+ may be "alive" at a time (i.e. a user should never store a copy
+ of the events returned by this function for ulterior use). Users
+ shall make sure to copy the information they need from an event
+ before accessing the next one.
+
+ Furthermore, event objects become invalid when the generator goes
+ out of scope as the underlying iterator will be reclaimed. Using an
+ event after the the generator has gone out of scope may result in a
+ crash or data corruption.
"""
begin_pos_ptr = _bt_iter_pos()
end_pos_ptr = _bt_iter_pos()
%pythoncode%{
-# Based on enum bt_clock_type in clock-type.h
+# Based on enum bt_clock_type in clock-type.h
class ClockType:
CLOCK_CYCLES = 0
CLOCK_REAL = 1
"""
return _bt_ctf_get_array_len(self._fd)
+ @property
+ def element_declaration(self):
+ """
+ Return element declaration.
+ """
+ field_decl_ptr = _bt_python_get_array_element_declaration(self._fd)
+ return _create_field_declaration(field_decl_ptr, "", self.scope)
+
class SequenceFieldDeclaration(FieldDeclaration):
"""Do not instantiate."""
def __init__(self):
raise NotImplementedError("SequenceFieldDeclaration cannot be instantiated")
+ @property
+ def element_declaration(self):
+ """
+ Return element declaration.
+ """
+ field_decl_ptr = _bt_python_get_sequence_element_declaration(self._fd)
+ return _create_field_declaration(field_decl_ptr, "", self.scope)
+
class FloatFieldDeclaration(FieldDeclaration):
"""Do not instantiate."""
def __init__(self):
"""Return the name of a field or None on error."""
return _bt_ctf_field_name(self._d)
- @property
+ @property
def type(self):
"""Return the type of a field or -1 if unknown."""
return _bt_ctf_field_type(_bt_ctf_get_decl_from_def(self._d))
"""
id = self.type
value = None
+
if id == CTFTypeId.STRING:
value = self._get_str()
elif id == CTFTypeId.ARRAY:
- value = []
- for i in range(self.declaration.length):
- element = self._get_array_element_at(i)
- value.append(element.value)
+ element_decl = self.declaration.element_declaration
+ if ((element_decl.type == CTFTypeId.INTEGER
+ and element_decl.length == 8)
+ and (element_decl.encoding == CTFStringEncoding.ASCII or element_decl.encoding == CTFStringEncoding.UTF8)):
+ value = _bt_python_get_array_string(self._d)
+ else:
+ value = []
+ for i in range(self.declaration.length):
+ element = self._get_array_element_at(i)
+ value.append(element.value)
elif id == CTFTypeId.INTEGER:
if self.declaration.signedness == 0:
value = self._get_uint64()
elif id == CTFTypeId.ENUM:
value = self._get_enum_str()
elif id == CTFTypeId.SEQUENCE:
- seq_len = self._get_sequence_len()
- value = []
- for i in range(seq_len):
- evDef = self._get_sequence_element_at(i)
- value.append(evDef.value)
+ element_decl = self.declaration.element_declaration
+ if ((element_decl.type == CTFTypeId.INTEGER
+ and element_decl.length == 8)
+ and (element_decl.encoding == CTFStringEncoding.ASCII or element_decl.encoding == CTFStringEncoding.UTF8)):
+ value = _bt_python_get_sequence_string(self._d)
+ else:
+ seq_len = self._get_sequence_len()
+ value = []
+ for i in range(seq_len):
+ evDef = self._get_sequence_element_at(i)
+ value.append(evDef.value)
elif id == CTFTypeId.FLOAT:
value = self._get_float()
elif id == CTFTypeId.VARIANT:
value[member.name] = member.value
if field_error():
- raise FieldError("Error occurred while accessing field {} of type {}".format(self.name, CTFTypeId.type_name(self.declaration.type)))
+ raise FieldError("Error occurred while accessing field {} of type {}".format(self.name, CTFTypeId.type_name(id)))
return value
@property
"""
@length.setter
def length(self, length_field):
- if not isinstance(length, CTFWriter.IntegerField):
+ if not isinstance(length_field, CTFWriter.IntegerField):
raise TypeError("Invalid length field.")
- ret = _bt_ctf_field_sequence_set_length(self._f, length._f)
+ ret = _bt_ctf_field_sequence_set_length(self._f, length_field._f)
if ret < 0:
raise ValueError("Could not set sequence length.")
def set_payload(self, field_name, value_field):
if not isinstance(value, CTFWriter.Field):
raise TypeError("Invalid value type.")
- ret = _bt_ctf_event_set_payload(self._e, str(field_name), value._f)
+ ret = _bt_ctf_event_set_payload(self._e, str(field_name), value_field._f)
if ret < 0:
raise ValueError("Could not set event field payload.")
Increase the current packet's discarded event count.
"""
def append_discarded_events(self, event_count):
- ret = _bt_ctf_stream_append_discarded_events(self._s, event_count)
- if ret < 0:
- raise ValueError("Could not append discarded events.")
+ _bt_ctf_stream_append_discarded_events(self._s, event_count)
"""
Append "event" to the stream's current packet. The stream's associated clock
projects / babeltrace.git / blobdiff