Class: Daemon::MasterProcess::Fork

Inherits:
Object
  • Object
show all
Defined in:
lib/onapp/engine/master_process/middleware/fork.rb

Instance Method Summary (collapse)

Constructor Details

- (Fork) initialize(app)

Returns a new instance of Fork



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# File 'lib/onapp/engine/master_process/middleware/fork.rb', line 7

def initialize(app)
  @app = app
end

Instance Method Details

- (Object) call(env) 



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# File 'lib/onapp/engine/master_process/middleware/fork.rb', line 11

def call(env)
  prepare = proc do
    $stderr.extend(Daemon::Utils::IOTimestamp)
    $stdout.reopen(env.log_file, 'a')
    $stderr.reopen(env.log_file, 'a')
    $stdout.sync = $stderr.sync = true
  end

  run = proc do
    begin
      @app.call(env)
    rescue => ex
      $stderr.puts "#{ex.class}: #{ex.message}"
      $stderr.puts ex.backtrace.join("\n")
    end
  end

  pid, error = Daemon::Utils::Process.block_and_fork(prepare, 120, &run)
  detach(pid)
  [pid, error]
end

- (Object) detach(pid) 



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# File 'lib/onapp/engine/master_process/middleware/fork.rb', line 33

def detach(pid)
  Process.detach(pid)
rescue => ex
  $stderr.puts(ex)
end