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

   1 # The MIT License (MIT)
   2 #
   3 # Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com>
   4 #
   5 # Permission is hereby granted, free of charge, to any person obtaining a copy
   6 # of this software and associated documentation files (the "Software"), to deal
   7 # in the Software without restriction, including without limitation the rights
   8 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   9 # copies of the Software, and to permit persons to whom the Software is
  10 # furnished to do so, subject to the following conditions:
  11 #
  12 # The above copyright notice and this permission notice shall be included in
  13 # all copies or substantial portions of the Software.
  14 #
  15 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  18 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  21 # THE SOFTWARE.
  22
  23 from bt2 import native_bt, utils
  24 import bt2
  25
  26
  27 def get_greatest_operative_mip_version(
  28     component_descriptors, log_level=bt2.LoggingLevel.NONE
  29 ):
  30     utils._check_log_level(log_level)
  31     comp_descr_set_ptr = native_bt.component_descriptor_set_create()
  32
  33     if comp_descr_set_ptr is None:
  34         raise bt2._MemoryError('cannot create component descriptor set object')
  35
  36     if len(component_descriptors) == 0:
  37         raise ValueError('no component descriptors')
  38
  39     try:
  40         for descr in component_descriptors:
  41             if type(descr) is not bt2.ComponentDescriptor:
  42                 raise TypeError("'{}' is not a component descriptor".format(descr))
  43
  44             base_cc_ptr = descr.component_class._bt_component_class_ptr()
  45             params_ptr = None
  46
  47             if descr.params is not None:
  48                 params_ptr = descr.params._ptr
  49
  50             status = native_bt.bt2_component_descriptor_set_add_descriptor_with_init_method_data(
  51                 comp_descr_set_ptr, base_cc_ptr, params_ptr, descr.obj
  52             )
  53             utils._handle_func_status(
  54                 status, 'cannot add descriptor to component descriptor set'
  55             )
  56
  57         status, version = native_bt.get_greatest_operative_mip_version(
  58             comp_descr_set_ptr, log_level
  59         )
  60
  61         if status == native_bt.__BT_FUNC_STATUS_NO_MATCH:
  62             return None
  63
  64         utils._handle_func_status(status, 'cannot get greatest operative MIP version')
  65         return version
  66     finally:
  67         native_bt.component_descriptor_set_put_ref(comp_descr_set_ptr)
  68
  69
  70 def get_maximal_mip_version():
  71     return native_bt.get_maximal_mip_version()