Class: Babeltrace2::BTValue::Map

Inherits:
Babeltrace2::BTValue show all
Defined in:
lib/babeltrace2/value.rb

Constant Summary collapse

ForeachEntryFuncStatus = 
BTValueMapForeachEntryFuncStatus
ForeachEntryStatus = 
BTValueMapForeachEntryStatus
ForeachEntryConstFuncStatus = 
BTValueMapForeachEntryConstFuncStatus
ForeachEntryConstStatus = 
BTValueMapForeachEntryConstStatus
ExtendStatus = 
BTValueMapExtendStatus

Constants inherited from Babeltrace2::BTValue

ArrayAppendElementStatus, ArraySetElementByIndexStatus, IntegerSigned, IntegerUnsigned, MapExtendStatus, MapForeachEntryConstFuncStatus, MapForeachEntryConstStatus, MapForeachEntryFuncStatus, MapForeachEntryStatus, StringSetStatus, TYPE_MAP

Instance Attribute Summary

Attributes inherited from Babeltrace2::BTObject

#handle

Instance Method Summary collapse

Methods inherited from Babeltrace2::BTValue

#copy, from_handle, from_value, #get_type, #is_equal, #to_s

Methods inherited from Babeltrace2::BTSharedObject

inherited

Methods inherited from Babeltrace2::BTObject

#==, #to_ptr

Constructor Details

#initialize(handle = nil, retain: true, auto_release: true) ⇒ Map 



743
744
745
746
747
748
749
750
751
 
# File 'lib/babeltrace2/value.rb', line 743

def initialize(handle = nil, retain: true, auto_release: true)
  if handle
    super(handle, retain: retain, auto_release: auto_release)
  else
    handle = Babeltrace2.bt_value_map_create()
    raise Babeltrace2.process_error if handle.null?
    super(handle)
  end
end

Instance Method Details

#[]=(key, value) ⇒ Object 



797
798
799
800
 
# File 'lib/babeltrace2/value.rb', line 797

def []=(key, value)
  insert_entry(key, value)
  value
end

#each(&block) ⇒ Object 



825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
 
# File 'lib/babeltrace2/value.rb', line 825

def each(&block)
  if block_given?
    block_wrapper = lambda { |key, handle, ptr|
      begin
        val = BTValue.from_handle(handle)
        key = key[1..-1].to_sym if key[0] == ':'
        block.call(key, val)
        :BT_VALUE_MAP_FOREACH_ENTRY_FUNC_STATUS_OK
      rescue Exception => e
        Babeltrace2.stack_ruby_error(e, source: nil)
        :BT_VALUE_MAP_FOREACH_ENTRY_FUNC_STATUS_ERROR
      end
    }
    Babeltrace2.bt_value_map_foreach_entry(@handle, block_wrapper, nil)
  else
    to_enum(:each)
  end
end

#empty? ⇒ Boolean 



807
808
809
 
# File 'lib/babeltrace2/value.rb', line 807

def empty?
  size == 0
end

#extend(other) ⇒ Object 



857
858
859
860
861
 
# File 'lib/babeltrace2/value.rb', line 857

def extend(other)
  hsh = self.class.new
  hsh.extend!(self)
  hsh.extend!(other)
end

#extend!(other) ⇒ Object 



851
852
853
854
855
 
# File 'lib/babeltrace2/value.rb', line 851

def extend!(other)
  res = Babeltrace2.bt_value_map_extend(@handle, other)
  raise Babeltrace2.process_error(res) if res != :BT_VALUE_COPY_STATUS_OK
  self
end

#get_entry_value(key) ⇒ Object Also known as: [] 



817
818
819
820
821
822
 
# File 'lib/babeltrace2/value.rb', line 817

def get_entry_value(key)
  key = key.inspect if key.kind_of?(Symbol)
  handle = Babeltrace2.bt_value_map_borrow_entry_value(@handle, key)
  return nil if handle.null?
  BTValue.from_handle(handle)
end

#get_size ⇒ Object Also known as: size 



802
803
804
 
# File 'lib/babeltrace2/value.rb', line 802

def get_size
  Babeltrace2.bt_value_map_get_size(@handle)
end

#has_entry(key) ⇒ Object Also known as: include? 



811
812
813
814
 
# File 'lib/babeltrace2/value.rb', line 811

def has_entry(key)
  key = key.inspect if key.kind_of?(Symbol)
  Babeltrace2.bt_value_map_has_entry(@handle, key) != BT_FALSE
end

#insert_entry(key, value) ⇒ Object 



753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
 
# File 'lib/babeltrace2/value.rb', line 753

def insert_entry(key, value)
  key = key.inspect if key.kind_of?(Symbol)
  res = case value
    when BTValue
      Babeltrace2.bt_value_map_insert_entry(@handle, key, value)
    when nil
      Babeltrace2.bt_value_map_insert_entry(@handle, key, Babeltrace2.bt_value_null)
    when true
      Babeltrace2.bt_value_map_insert_bool_entry(@handle, key, BT_TRUE)
    when false
      Babeltrace2.bt_value_map_insert_bool_entry(@handle, key, BT_FALSE)
    when ::Integer
      if value > (1<<63) - 1
        Babeltrace2.bt_value_map_insert_unsigned_integer_entry(@handle, key, value)
      else
        Babeltrace2.bt_value_map_insert_signed_integer_entry(@handle, key, value)
      end
    when ::Float
      Babeltrace2.bt_value_map_insert_real_entry(@handle, key, value)
    when ::String
      Babeltrace2.bt_value_map_insert_string_entry(@handle, key, value)
    when ::Array
      ptr = FFI::MemoryPointer.new(:pointer)
      res = Babeltrace2.bt_value_map_insert_empty_array_entry(@handle, key, ptr)
      raise Babeltrace2.process_error(res) if res != :BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK
      arr = BTValueArray.new(BTValueArrayHandle.new(ptr.read_pointer),
                             retain: false, auto_release: false)
      value.each { |v| arr.append_element(v) }
      :BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK
    when ::Hash
      ptr = FFI::MemoryPointer.new(:pointer)
      res = Babeltrace2.bt_value_map_insert_empty_map_entry(@handle, key, ptr)
      raise Babeltrace2.process_error(res) if res != :BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK
      map = BTValueMap.new(BTValueMapHandle.new(ptr.read_pointer),
                           retain: false, auto_release: false)
      value.each { |k, v| map.insert_entry(k, v) }
      :BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK
    else
      raise TypeError, "unsupported value type"
    end
  raise Babeltrace2.process_error(res) if res != :BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK
  self
end

#value ⇒ Object Also known as: to_h 



844
845
846
847
848
 
# File 'lib/babeltrace2/value.rb', line 844

def value
  val = {}
  each { |k, v| val[k] = v.value }
  val
end