Class: Babeltrace2Gen::BTEventClass

Inherits:
Object
  • Object
show all
Extended by:
BTFromH
Includes:
BTLocator, BTMatch, BTPrinter
Defined in:
lib/metababel/bt2_trace_class_generator.rb

Constant Summary collapse

BT_MATCH_ATTRS = 
%i[parent name specific_context_field_class payload_field_class]

Constants included from BTPrinter

Babeltrace2Gen::BTPrinter::INDENT_INCREMENT

Instance Attribute Summary collapse

Attributes included from BTLocator

#parent, #variable

Instance Method Summary collapse

Methods included from BTFromH

from_h

Methods included from BTMatch

#match?

Methods included from BTLocator

#rec_event_class, #rec_member_class, #rec_stream_class, #rec_trace_class, #resolve_path

Methods included from BTPrinter

context, #name_sanitized, pr, #scope

Constructor Details

#initialize(parent:, name: nil, specific_context_field_class: nil, payload_field_class: nil, id: nil, set_id: nil, domain: nil, register: true) ⇒ BTEventClass

Returns a new instance of BTEventClass.



250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
 
# File 'lib/metababel/bt2_trace_class_generator.rb', line 250

def initialize(parent:, name: nil, specific_context_field_class: nil, payload_field_class: nil, id: nil,
               set_id: nil, domain: nil, register: true)

  @set_id = set_id
  @domain = domain
  @register = register

  @parent = parent
  @name = name
  raise 'Name is mandatory for BTEventClass' if name.nil? && !rec_trace_class.match

  if specific_context_field_class
    @specific_context_field_class = BTFieldClass.from_h(self,
                                                        specific_context_field_class)
  end
  @payload_field_class = BTFieldClass.from_h(self, payload_field_class) if payload_field_class

  @id = id
end

Instance Attribute Details

#domain ⇒ Object (readonly)

Returns the value of attribute domain.



248
249
250
 
# File 'lib/metababel/bt2_trace_class_generator.rb', line 248

def domain
  @domain
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



248
249
250
 
# File 'lib/metababel/bt2_trace_class_generator.rb', line 248

def name
  @name
end

#payload_field_class ⇒ Object (readonly)

Returns the value of attribute payload_field_class.



248
249
250
 
# File 'lib/metababel/bt2_trace_class_generator.rb', line 248

def payload_field_class
  @payload_field_class
end

#register ⇒ Object (readonly)

Returns the value of attribute register.



248
249
250
 
# File 'lib/metababel/bt2_trace_class_generator.rb', line 248

def register
  @register
end

#set_id ⇒ Object (readonly)

Returns the value of attribute set_id.



248
249
250
 
# File 'lib/metababel/bt2_trace_class_generator.rb', line 248

def set_id
  @set_id
end

#specific_context_field_class ⇒ Object (readonly)

Returns the value of attribute specific_context_field_class.



248
249
250
 
# File 'lib/metababel/bt2_trace_class_generator.rb', line 248

def specific_context_field_class
  @specific_context_field_class
end

Instance Method Details

#get_declarator(trace_class:, variable:, stream_class:) ⇒ Object 



270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
 
# File 'lib/metababel/bt2_trace_class_generator.rb', line 270

def get_declarator(trace_class:, variable:, stream_class:)
  # Store the variable name for introspection purposes (PATH)
  @variable = variable
  if @id
    pr "#{variable} = bt_event_class_create_with_id(#{stream_class}, #{@id});"
  else
    pr "#{variable} = bt_event_class_create(#{stream_class});"
  end

  pr "bt_event_class_set_name(#{variable}, \"#{@name}\");" if @name

  if @specific_context_field_class
    var_name = "#{variable}_sc_fc"
    scope do
      pr "bt_field_class *#{var_name};"
      @specific_context_field_class.get_declarator(trace_class: trace_class, variable: var_name)
      pr "bt_event_class_set_specific_context_field_class(#{variable}, #{var_name});"
      pr "bt_field_class_put_ref(#{var_name});"
    end
  end

  return unless @payload_field_class

  var_name = "#{variable}_p_fc"
  scope do
    pr "bt_field_class *#{var_name};"
    @payload_field_class.get_declarator(trace_class: trace_class, variable: var_name)
    pr "bt_event_class_set_payload_field_class(#{variable}, #{var_name});"
    pr "bt_field_class_put_ref(#{var_name});"
  end
end

#get_getter(event:, arg_variables:) ⇒ Object 



328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
 
# File 'lib/metababel/bt2_trace_class_generator.rb', line 328

def get_getter(event:, arg_variables:)
  if rec_trace_class.environment
    trace = 'trace'
    scope do
      pr "const bt_stream *stream = bt_event_borrow_stream_const(#{event});"
      pr "const bt_trace *#{trace} = bt_stream_borrow_trace_const(stream);"
      rec_trace_class.environment.get_getter(trace: trace, arg_variables: arg_variables)
    end
  end

  if rec_stream_class.event_common_context_field_class
    field = "#{event}_cc_f"
    scope do
      pr "const bt_field *#{field} = bt_event_borrow_common_context_field_const(#{event});"
      rec_stream_class.event_common_context_field_class.get_getter(variable: field, arg_variables: arg_variables)
    end
  end

  if @specific_context_field_class
    field = "#{event}_sc_f"
    scope do
      pr "const bt_field *#{field} = bt_event_borrow_specific_context_field_const(#{event});"
      @specific_context_field_class.get_getter(variable: field, arg_variables: arg_variables)
    end
  end

  return unless @payload_field_class

  field = "#{event}_p_f"
  scope do
    pr "const bt_field *#{field} = bt_event_borrow_payload_field_const(#{event});"
    @payload_field_class.get_getter(variable: field, arg_variables: arg_variables)
  end
end

#get_setter(event:, arg_variables:) ⇒ Object 



302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
 
# File 'lib/metababel/bt2_trace_class_generator.rb', line 302

def get_setter(event:, arg_variables:)
  if rec_stream_class.event_common_context_field_class
    field = "#{event}_cc_f"
    scope do
      pr "bt_field *#{field} = bt_event_borrow_common_context_field(#{event});"
      rec_stream_class.event_common_context_field_class.get_setter(variable: field, arg_variables: arg_variables)
    end
  end

  if @specific_context_field_class
    field = "#{event}_sc_f"
    scope do
      pr "bt_field *#{field} = bt_event_borrow_specific_context_field(#{event});"
      @specific_context_field_class.get_setter(variable: field, arg_variables: arg_variables)
    end
  end

  return unless @payload_field_class

  field = "#{event}_p_f"
  scope do
    pr "bt_field *#{field} = bt_event_borrow_payload_field(#{event});"
    @payload_field_class.get_setter(variable: field, arg_variables: arg_variables)
  end
end