src/bindings/python/bt2/bt2/mip.py

   1 # SPDX-License-Identifier: MIT
   2 #
   3 # Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com>
   4
   5 from bt2 import native_bt
   6 from bt2 import utils as bt2_utils
   7 import bt2
   8
   9
  10 def get_greatest_operative_mip_version(
  11     component_descriptors, log_level=bt2.LoggingLevel.NONE
  12 ):
  13     bt2_utils._check_log_level(log_level)
  14     comp_descr_set_ptr = native_bt.component_descriptor_set_create()
  15
  16     if comp_descr_set_ptr is None:
  17         raise bt2._MemoryError("cannot create component descriptor set object")
  18
  19     if len(component_descriptors) == 0:
  20         raise ValueError("no component descriptors")
  21
  22     try:
  23         for descr in component_descriptors:
  24             if type(descr) is not bt2.ComponentDescriptor:
  25                 raise TypeError("'{}' is not a component descriptor".format(descr))
  26
  27             base_cc_ptr = descr.component_class._bt_component_class_ptr()
  28             params_ptr = None
  29
  30             if descr.params is not None:
  31                 params_ptr = descr.params._ptr
  32
  33             status = native_bt.bt2_component_descriptor_set_add_descriptor_with_initialize_method_data(
  34                 comp_descr_set_ptr, base_cc_ptr, params_ptr, descr.obj
  35             )
  36             bt2_utils._handle_func_status(
  37                 status, "cannot add descriptor to component descriptor set"
  38             )
  39
  40         status, version = native_bt.get_greatest_operative_mip_version(
  41             comp_descr_set_ptr, log_level
  42         )
  43
  44         if status == native_bt.__BT_FUNC_STATUS_NO_MATCH:
  45             return None
  46
  47         bt2_utils._handle_func_status(
  48             status, "cannot get greatest operative MIP version"
  49         )
  50         return version
  51     finally:
  52         native_bt.component_descriptor_set_put_ref(comp_descr_set_ptr)
  53
  54
  55 def get_maximal_mip_version():
  56     return native_bt.get_maximal_mip_version()