jjb

First, install your preferred version of postgres

sudo port install posgresql84

Now you have psql84 available, which rolls right off your fingers. Even better, your pg_config is buried in a postgresql84 namespace. Fix both of these with:

sudo port select --set postgresql postgresql84

Now you can intall the gem

jjb

# TODO: write blog posts

jjb

require 'timeout'

begin
  Timeout.timeout(1) do
    # spending time doing, say, an IO operation accross the network
    sleep 2
  end
rescue
  puts "Getting the big file took too long. Try again later."
end

jjb

class SpecialError < StandardError; end

begin
  raise StandardError
rescue  
  "rescued"
end  
# "rescued"

begin

jjb

require 'timeout'

def process_foos(error_to_rescue)
  begin
    # -> process Foos
    # -> if we run out of Foos, raise
    sleep 2
  rescue error_to_rescue
    # -> email the manager that we ran out of Foos
    puts <<-MESSAGE

jjb

def subject(throws, catches)
  $inner_succeeded=nil
  $raised_in_inner=nil
  $caught_in_inner=nil

  $raised_in_outer=nil
  $not_raised_in_outer=nil
  begin
    Timeout.timeout(0.1, throws){
      begin

jjb

self.class._create_callbacks.select { |callback| callback.kind.eql?(:after) }.collect(&:filter)

jjb

def generate_continue_object(*args)

  args.each{|a| puts a.inspect}

  yield if block_given?

  continue_object = Object.new
  def continue_object.next_block
    if block_given?
      yield

jjb

t = Thread.start{
  begin
    puts "starting executing code!"
    sleep 1
    puts "done executing code!" # we don't expect to reach here
  rescue Exception
    puts "rescuing!"            # we don't expect to reach here
  ensure
    puts "ensuring!"            # will we reach here????? (yes)
  end

jjb

require 'thread'

t = Thread.new{
  sleep 0.1
  sleep 0.1
  sleep 0.1
  sleep 0.1
  sleep 0.1
}