--- /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 collections.abc
+import bt2.component
+import os.path
+import bt2
+
+
+def find_plugins(path, recurse=True):
+ utils._check_str(path)
+ utils._check_bool(recurse)
+ plugin_set_ptr = None
+
+ if os.path.isfile(path):
+ plugin_set_ptr = native_bt.plugin_find_all_from_file(path)
+ elif os.path.isdir(path):
+ plugin_set_ptr = native_bt.plugin_find_all_from_dir(path, int(recurse))
+
+ if plugin_set_ptr is None:
+ return
+
+ return _PluginSet._create_from_ptr(plugin_set_ptr)
+
+
+def find_plugin(name):
+ utils._check_str(name)
+ ptr = native_bt.plugin_find(name)
+
+ if ptr is None:
+ return
+
+ return _Plugin._create_from_ptr(ptr)
+
+
+class _PluginSet(object._SharedObject, collections.abc.Sequence):
+ _put_ref = staticmethod(native_bt.plugin_set_put_ref)
+ _get_ref = staticmethod(native_bt.plugin_set_get_ref)
+
+ def __len__(self):
+ count = native_bt.plugin_set_get_plugin_count(self._ptr)
+ assert(count >= 0)
+ return count
+
+ def __getitem__(self, index):
+ utils._check_uint64(index)
+
+ if index >= len(self):
+ raise IndexError
+
+ plugin_ptr = native_bt.plugin_set_borrow_plugin_by_index_const(self._ptr, index)
+ assert plugin_ptr is not None
+ return _Plugin._create_from_ptr_and_get_ref(plugin_ptr)
+
+
+class _PluginVersion:
+ def __init__(self, major, minor, patch, extra):
+ self._major = major
+ self._minor = minor
+ self._patch = patch
+ self._extra = extra
+
+ @property
+ def major(self):
+ return self._major
+
+ @property
+ def minor(self):
+ return self._minor
+
+ @property
+ def patch(self):
+ return self._patch
+
+ @property
+ def extra(self):
+ return self._extra
+
+ def __str__(self):
+ extra = ''
+
+ if self._extra is not None:
+ extra = self._extra
+
+ return '{}.{}.{}{}'.format(self._major, self._minor, self._patch, extra)
+
+
+class _PluginComponentClassesIterator(collections.abc.Iterator):
+ def __init__(self, plugin_comp_cls):
+ self._plugin_comp_cls = plugin_comp_cls
+ self._at = 0
+
+ def __next__(self):
+ plugin_ptr = self._plugin_comp_cls._plugin._ptr
+ total = self._plugin_comp_cls._component_class_count(plugin_ptr)
+
+ if self._at == total:
+ raise StopIteration
+
+ comp_cls_ptr = self._plugin_comp_cls._borrow_component_class_by_index(plugin_ptr, self._at)
+ assert comp_cls_ptr is not None
+ self._at += 1
+
+ comp_cls_type = self._plugin_comp_cls._comp_cls_type
+ comp_cls_pycls = bt2.component._COMP_CLS_TYPE_TO_GENERIC_COMP_CLS_PYCLS[comp_cls_type]
+ comp_cls_ptr = comp_cls_pycls._as_component_class_ptr(comp_cls_ptr)
+ name = native_bt.component_class_get_name(comp_cls_ptr)
+ assert name is not None
+ return name
+
+
+class _PluginComponentClasses(collections.abc.Mapping):
+ def __init__(self, plugin):
+ self._plugin = plugin
+
+ def __getitem__(self, key):
+ utils._check_str(key)
+ cc_ptr = self._borrow_component_class_by_name(self._plugin._ptr, key)
+
+ if cc_ptr is None:
+ raise KeyError(key)
+
+ return bt2.component._create_component_class_from_ptr_and_get_ref(cc_ptr, self._comp_cls_type)
+
+ def __len__(self):
+ return self._component_class_count(self._plugin._ptr)
+
+ def __iter__(self):
+ return _PluginComponentClassesIterator(self)
+
+
+class _PluginSourceComponentClasses(_PluginComponentClasses):
+ _component_class_count = staticmethod(native_bt.plugin_get_source_component_class_count)
+ _borrow_component_class_by_name = staticmethod(native_bt.plugin_borrow_source_component_class_by_name_const)
+ _borrow_component_class_by_index = staticmethod(native_bt.plugin_borrow_source_component_class_by_index_const)
+ _comp_cls_type = native_bt.COMPONENT_CLASS_TYPE_SOURCE
+
+
+class _PluginFilterComponentClasses(_PluginComponentClasses):
+ _component_class_count = staticmethod(native_bt.plugin_get_filter_component_class_count)
+ _borrow_component_class_by_name = staticmethod(native_bt.plugin_borrow_filter_component_class_by_name_const)
+ _borrow_component_class_by_index = staticmethod(native_bt.plugin_borrow_filter_component_class_by_index_const)
+ _comp_cls_type = native_bt.COMPONENT_CLASS_TYPE_FILTER
+
+
+class _PluginSinkComponentClasses(_PluginComponentClasses):
+ _component_class_count = staticmethod(native_bt.plugin_get_sink_component_class_count)
+ _borrow_component_class_by_name = staticmethod(native_bt.plugin_borrow_sink_component_class_by_name_const)
+ _borrow_component_class_by_index = staticmethod(native_bt.plugin_borrow_sink_component_class_by_index_const)
+ _comp_cls_type = native_bt.COMPONENT_CLASS_TYPE_SINK
+
+
+class _Plugin(object._SharedObject):
+ _put_ref = staticmethod(native_bt.plugin_put_ref)
+ _get_ref = staticmethod(native_bt.plugin_get_ref)
+
+ @property
+ def name(self):
+ name = native_bt.plugin_get_name(self._ptr)
+ assert(name is not None)
+ return name
+
+ @property
+ def author(self):
+ return native_bt.plugin_get_author(self._ptr)
+
+ @property
+ def license(self):
+ return native_bt.plugin_get_license(self._ptr)
+
+ @property
+ def description(self):
+ return native_bt.plugin_get_description(self._ptr)
+
+ @property
+ def path(self):
+ return native_bt.plugin_get_path(self._ptr)
+
+ @property
+ def version(self):
+ status, major, minor, patch, extra = native_bt.plugin_get_version_wrapper(self._ptr)
+
+ if status == native_bt.PROPERTY_AVAILABILITY_NOT_AVAILABLE:
+ return
+
+ return _PluginVersion(major, minor, patch, extra)
+
+ @property
+ def source_component_classes(self):
+ return _PluginSourceComponentClasses(self)
+
+ @property
+ def filter_component_classes(self):
+ return _PluginFilterComponentClasses(self)
+
+ @property
+ def sink_component_classes(self):
+ return _PluginSinkComponentClasses(self)
projects / babeltrace.git / blobdiff