Class: Guruby::Environment

Inherits:
Object
  • Object
show all
Defined in:
lib/guruby/env.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Environment

Returns a new instance of Environment.



7
8
9
10
11
12
13
14
15
16
17
18
 
# File 'lib/guruby/env.rb', line 7

def initialize
  # Create a new environment object
  @ptr = FFI::MemoryPointer.new :pointer
  Gurobi.GRBloadenv @ptr, nil
  @ptr = @ptr.read_pointer

  # Disable output
  Gurobi.GRBsetintparam @ptr, GRB_INT_PAR_OUTPUTFLAG, 0

  # Ensure the environment is freed
  ObjectSpace.define_finalizer self, self.class.finalize(@ptr)
end

Instance Attribute Details

#ptr ⇒ Object (readonly)

Returns the value of attribute ptr.



5
6
7
 
# File 'lib/guruby/env.rb', line 5

def ptr
  @ptr
end

Class Method Details

.finalize(ptr) ⇒ Object

Free the environment



21
22
23
 
# File 'lib/guruby/env.rb', line 21

def self.finalize(ptr)
  proc { Gurobi.GRBfreeenv ptr }
end