from bt2 import interrupter as bt2_interrupter
from bt2 import connection as bt2_connection
from bt2 import component as bt2_component
-from bt2 import message_iterator as bt2_message_iterator
import functools
from bt2 import port as bt2_port
from bt2 import logging as bt2_logging
def _graph_port_added_listener_from_native(
user_listener, component_ptr, component_type, port_ptr, port_type
):
- component = bt2_component._create_component_from_ptr_and_get_ref(
+ component = bt2_component._create_component_from_const_ptr_and_get_ref(
component_ptr, component_type
)
- port = bt2_port._create_from_ptr_and_get_ref(port_ptr, port_type)
+ port = bt2_port._create_from_const_ptr_and_get_ref(port_ptr, port_type)
user_listener(component, port)
-def _graph_ports_connected_listener_from_native(
- user_listener,
- upstream_component_ptr,
- upstream_component_type,
- upstream_port_ptr,
- downstream_component_ptr,
- downstream_component_type,
- downstream_port_ptr,
-):
- upstream_component = bt2_component._create_component_from_ptr_and_get_ref(
- upstream_component_ptr, upstream_component_type
- )
- upstream_port = bt2_port._create_from_ptr_and_get_ref(
- upstream_port_ptr, native_bt.PORT_TYPE_OUTPUT
- )
- downstream_component = bt2_component._create_component_from_ptr_and_get_ref(
- downstream_component_ptr, downstream_component_type
- )
- downstream_port = bt2_port._create_from_ptr_and_get_ref(
- downstream_port_ptr, native_bt.PORT_TYPE_INPUT
- )
- user_listener(
- upstream_component, upstream_port, downstream_component, downstream_port
- )
-
-
class Graph(object._SharedObject):
_get_ref = staticmethod(native_bt.graph_get_ref)
_put_ref = staticmethod(native_bt.graph_put_ref)
- def __init__(self):
- ptr = native_bt.graph_create()
+ def __init__(self, mip_version=0):
+ utils._check_uint64(mip_version)
+
+ if mip_version > bt2.get_maximal_mip_version():
+ raise ValueError('unknown MIP version {}'.format(mip_version))
+
+ ptr = native_bt.graph_create(mip_version)
if ptr is None:
raise bt2._MemoryError('cannot create graph object')
super().__init__(ptr)
+ # list of listener partials to keep a reference as long as
+ # this graph exists
+ self._listener_partials = []
+
def add_component(
self,
component_class,
obj=None,
logging_level=bt2_logging.LoggingLevel.NONE,
):
- if isinstance(component_class, bt2_component._SourceComponentClass):
+ if isinstance(component_class, bt2_component._SourceComponentClassConst):
cc_ptr = component_class._ptr
add_fn = native_bt.bt2_graph_add_source_component
cc_type = native_bt.COMPONENT_CLASS_TYPE_SOURCE
- elif isinstance(component_class, bt2_component._FilterComponentClass):
+ elif isinstance(component_class, bt2_component._FilterComponentClassConst):
cc_ptr = component_class._ptr
add_fn = native_bt.bt2_graph_add_filter_component
cc_type = native_bt.COMPONENT_CLASS_TYPE_FILTER
- elif isinstance(component_class, bt2_component._SinkComponentClass):
+ elif isinstance(component_class, bt2_component._SinkComponentClassConst):
cc_ptr = component_class._ptr
add_fn = native_bt.bt2_graph_add_sink_component
cc_type = native_bt.COMPONENT_CLASS_TYPE_SINK
if obj is not None and not native_bt.bt2_is_python_component_class(base_cc_ptr):
raise ValueError('cannot pass a Python object to a non-Python component')
+ if params is not None and not isinstance(params, (dict, bt2.MapValue)):
+ raise TypeError("'params' parameter is not a 'dict' or a 'bt2.MapValue'.")
+
params = bt2.create_value(params)
+
params_ptr = params._ptr if params is not None else None
status, comp_ptr = add_fn(
)
utils._handle_func_status(status, 'cannot add component to graph')
assert comp_ptr
- return bt2_component._create_component_from_ptr(comp_ptr, cc_type)
+ return bt2_component._create_component_from_const_ptr(comp_ptr, cc_type)
def connect_ports(self, upstream_port, downstream_port):
- utils._check_type(upstream_port, bt2_port._OutputPort)
- utils._check_type(downstream_port, bt2_port._InputPort)
+ utils._check_type(upstream_port, bt2_port._OutputPortConst)
+ utils._check_type(downstream_port, bt2_port._InputPortConst)
status, conn_ptr = native_bt.graph_connect_ports(
self._ptr, upstream_port._ptr, downstream_port._ptr
)
utils._handle_func_status(status, 'cannot connect component ports within graph')
assert conn_ptr
- return bt2_connection._Connection._create_from_ptr(conn_ptr)
+ return bt2_connection._ConnectionConst._create_from_ptr(conn_ptr)
def add_port_added_listener(self, listener):
if not callable(listener):
if listener_ids is None:
raise bt2._Error('cannot add listener to graph object')
- return utils._ListenerHandle(listener_ids, self)
-
- def add_ports_connected_listener(self, listener):
- if not callable(listener):
- raise TypeError("'listener' parameter is not callable")
-
- fn = native_bt.bt2_graph_add_ports_connected_listener
- listener_from_native = functools.partial(
- _graph_ports_connected_listener_from_native, listener
- )
-
- listener_ids = fn(self._ptr, listener_from_native)
- if listener_ids is None:
- raise bt2._Error('cannot add listener to graph object')
-
- return utils._ListenerHandle(listener_ids, self)
+ # keep the partial's reference
+ self._listener_partials.append(listener_from_native)
def run_once(self):
status = native_bt.graph_run_once(self._ptr)
def run(self):
status = native_bt.graph_run(self._ptr)
-
- try:
- utils._handle_func_status(status, 'graph object stopped running')
- except bt2.Stop:
- # done
- return
- except Exception:
- raise
+ utils._handle_func_status(status, 'graph object stopped running')
def add_interrupter(self, interrupter):
utils._check_type(interrupter, bt2_interrupter.Interrupter)
native_bt.graph_add_interrupter(self._ptr, interrupter._ptr)
- def interrupt(self):
- native_bt.graph_interrupt(self._ptr)
-
- def create_output_port_message_iterator(self, output_port):
- utils._check_type(output_port, bt2_port._OutputPort)
- msg_iter_ptr = native_bt.port_output_message_iterator_create(
- self._ptr, output_port._ptr
- )
-
- if msg_iter_ptr is None:
- raise bt2._MemoryError('cannot create output port message iterator')
-
- return bt2_message_iterator._OutputPortMessageIterator(msg_iter_ptr)
+ @property
+ def default_interrupter(self):
+ ptr = native_bt.graph_borrow_default_interrupter(self._ptr)
+ return bt2_interrupter.Interrupter._create_from_ptr_and_get_ref(ptr)
projects / babeltrace.git / blobdiff