Class: Evilution::Isolation::Fork

Inherits:
Object
  • Object
show all
Defined in:
lib/evilution/isolation/fork.rb

Constant Summary collapse

GRACE_PERIOD = 
2
REAP_DEADLINE = 
1.0

Instance Method Summary collapse

Constructor Details

#initialize(hooks: nil) ⇒ Fork

Returns a new instance of Fork.



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# File 'lib/evilution/isolation/fork.rb', line 16

def initialize(hooks: nil)
  @hooks = hooks
  # EV-3aw3 / EV-5rrh step 2: the supervisor owns this path's lifecycle --
  # spawn + process-group isolation, the TERM/grace/KILL ladder, and reap +
  # sandbox removal. fork.rb keeps only the marshal-pipe read protocol.
  @supervisor = Evilution::ProcessSupervisor.new
end

Instance Method Details

#call(mutation:, test_command:, timeout:) ⇒ Object 



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# File 'lib/evilution/isolation/fork.rb', line 24

def call(mutation:, test_command:, timeout:)
  handle = nil
  sandbox_dir = Dir.mktmpdir("evilution-run")
  start_time = Process.clock_gettime(Process::CLOCK_MONOTONIC)
  parent_rss = Evilution::Memory.rss_kb
  read_io, write_io = binary_pipe
  handle = spawn_child(read_io, write_io, sandbox_dir, mutation, test_command)
  write_io.close
  result = wait_for_result(handle, read_io, timeout)
  duration = Process.clock_gettime(Process::CLOCK_MONOTONIC) - start_time
  build_mutation_result(mutation, result, duration, parent_rss)
ensure
  cleanup_resources(read_io, write_io, handle, sandbox_dir)
end