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 error as bt2_error
   6 from bt2 import utils as bt2_utils
   7 from bt2 import logging as bt2_logging
   8 from bt2 import native_bt
   9 from bt2 import component_descriptor as bt2_component_descriptor
  10
  11
  12 def get_greatest_operative_mip_version(
  13     component_descriptors, log_level=bt2_logging.LoggingLevel.NONE
  14 ):
  15     bt2_utils._check_log_level(log_level)
  16     comp_descr_set_ptr = native_bt.component_descriptor_set_create()
  17
  18     if comp_descr_set_ptr is None:
  19         raise bt2_error._MemoryError("cannot create component descriptor set object")
  20
  21     if len(component_descriptors) == 0:
  22         raise ValueError("no component descriptors")
  23
  24     try:
  25         for descr in component_descriptors:
  26             if type(descr) is not bt2_component_descriptor.ComponentDescriptor:
  27                 raise TypeError("'{}' is not a component descriptor".format(descr))
  28
  29             base_cc_ptr = descr.component_class._bt_component_class_ptr()
  30             params_ptr = None
  31
  32             if descr.params is not None:
  33                 params_ptr = descr.params._ptr
  34
  35             status = native_bt.bt2_component_descriptor_set_add_descriptor_with_initialize_method_data(
  36                 comp_descr_set_ptr, base_cc_ptr, params_ptr, descr.obj
  37             )
  38             bt2_utils._handle_func_status(
  39                 status, "cannot add descriptor to component descriptor set"
  40             )
  41
  42         status, version = native_bt.get_greatest_operative_mip_version(
  43             comp_descr_set_ptr, log_level
  44         )
  45
  46         if status == native_bt.__BT_FUNC_STATUS_NO_MATCH:
  47             return None
  48
  49         bt2_utils._handle_func_status(
  50             status, "cannot get greatest operative MIP version"
  51         )
  52         return version
  53     finally:
  54         native_bt.component_descriptor_set_put_ref(comp_descr_set_ptr)
  55
  56
  57 def get_maximal_mip_version():
  58     return native_bt.get_maximal_mip_version()