jruby-1.7.0-dev-1.8

jruby 1.7.0.dev (ruby-1.8.7-p357) (2012-01-10 6886cc0) (Java HotSpot(TM) 64-Bit Server VM 1.6.0_29) [darwin-x86_64-java]

No default handler
["CLD", "EXIT", "IOT"]

Proc defined at #<Proc:0x10c10de0@(internal):0>
["HUP"]

Proc defined at #<Proc:0x5ae8a0cd@(internal):0>
["ALRM", "CONT", "EMT", "ILL", "INT", "STOP", "TTOU", "URG", "USR2", "WINCH", "XFSZ"]

The signal QUIT is in use by the JVM and will not work correctly on this platform
No default handler
["QUIT"]

Proc defined at #<Proc:0x5e95215b@(internal):0>
["ABRT", "BUS", "CHLD", "FPE", "INFO", "IO", "KILL", "PIPE", "PROF", "SEGV", "SYS", "TERM", "TRAP", "TSTP", "TTIN", "USR1", "VTALRM", "XCPU"]

jruby-1.7.0-dev-1.9

jruby 1.7.0.dev (ruby-1.9.3-p6) (2012-01-10 6886cc0) (Java HotSpot(TM) 64-Bit Server VM 1.6.0_29) [darwin-x86_64-java]

No default handler
["CLD", "EXIT", "IOT"]

Proc defined at #<Proc:0x5e95215b@(internal):0>
["CHLD", "EMT", "HUP", "ILL", "INFO", "INT", "PIPE", "STOP", "TERM", "USR1", "VTALRM", "XCPU", "XFSZ"]

The signal QUIT is in use by the JVM and will not work correctly on this platform
No default handler
["QUIT"]

Proc defined at #<Proc:0x5ae8a0cd@(internal):0>
["ABRT", "ALRM", "BUS", "CONT", "FPE", "IO", "KILL", "PROF", "SEGV", "TRAP", "TSTP", "TTIN", "TTOU", "URG"]

Proc defined at #<Proc:0x10c10de0@(internal):0>
["SYS", "USR2"]

Proc defined at #<Proc:0x749abce9@(internal):0>
["WINCH"]

mri-1.8.7-p352

ruby 1.8.7 (2011-06-30 patchlevel 352) [i686-darwin11.0.1]

test.rb:4:in `trap': SIGVTALRM reserved for Thread; can't set handler (ArgumentError)
	from test.rb:4
["VTALRM"]

Using the default handler
["ALRM", "HUP", "INT", "QUIT", "TERM", "USR1", "USR2"]

No default handler
["ABRT", "BUS", "CHLD", "CLD", "CONT", "EMT", "EXIT", "FPE", "ILL", "INFO", "IO", "IOT", "KILL", "PIPE", "PROF", "SEGV", "STOP", "SYS", "TRAP", "TSTP", "TTIN", "TTOU", "URG", "WINCH", "XCPU", "XFSZ"]

mri-1.9.2-p290

ruby 1.9.2p290 (2011-07-09 revision 32553) [x86_64-darwin11.0.1]

No default handler
["ABRT", "BUS", "CHLD", "CLD", "CONT", "EMT", "EXIT", "FPE", "ILL", "INFO", "IO", "IOT", "KILL", "PIPE", "PROF", "SEGV", "STOP", "SYS", "TRAP", "TSTP", "TTIN", "TTOU", "URG", "VTALRM", "WINCH", "XCPU", "XFSZ"]

Using the default handler
["ALRM", "HUP", "INT", "QUIT", "TERM", "USR1", "USR2"]

rbx-2.0.0-dev-1.8

rubinius 2.0.0dev (1.8.7 9fb8893b yyyy-mm-dd JI) [x86_64-apple-darwin11.2.0]

Proc defined at #<Proc:0xc@kernel/loader.rb:142>
["INT"]

Using the default handler
["ABRT", "ALRM", "BUS", "CHLD", "CLD", "CONT", "DANGER", "EMT", "EXIT", "FPE", "GRANT", "HUP", "ILL", "INFO", "IO", "IOT", "KILL", "LOST", "MIGRATE", "MSG", "PIPE", "POLL", "PRE", "PROF", "PWR", "QUIT", "RETRACT", "SEGV", "SOUND", "STOP", "SYS", "TERM", "TRAP", "TSTP", "TTIN", "TTOU", "URG", "USR1", "USR2", "VTALRM", "WINCH", "XCPU", "XFSZ"]

rbx-2.0.0-dev-1.9

rubinius 2.0.0dev (1.9.3 9fb8893b yyyy-mm-dd JI) [x86_64-apple-darwin11.2.0]

Using the default handler
["ABRT", "ALRM", "BUS", "CHLD", "CLD", "CONT", "DANGER", "EMT", "EXIT", "FPE", "GRANT", "HUP", "ILL", "INFO", "IO", "IOT", "KILL", "LOST", "MIGRATE", "MSG", "PIPE", "POLL", "PRE", "PROF", "PWR", "QUIT", "RETRACT", "SEGV", "SOUND", "STOP", "SYS", "TERM", "TRAP", "TSTP", "TTIN", "TTOU", "URG", "USR1", "USR2", "VTALRM", "WINCH", "XCPU", "XFSZ"]

Proc defined at ["kernel/loader.rb", 143]
["INT"]

run.sh

rbenv set-local 1.8.7-p352
ruby test.rb |tee mri-1.8.7-p352

rbenv set-local 1.9.2-p290
ruby test.rb |tee mri-1.9.2-p290

rbenv set-local rbx-2.0.0-dev
RBXOPT=-X18 ruby test.rb |tee rbx-2.0.0-dev-1.8
RBXOPT=-X19 ruby test.rb |tee rbx-2.0.0-dev-1.9

rbenv set-local jruby-1.7.0-dev
ruby --1.8 test.rb |tee jruby-1.7.0-dev-1.8
ruby --1.9 test.rb |tee jruby-1.7.0-dev-1.9

test.rb

$stderr.reopen($stdout)

if sig = ARGV.shift
  default = Signal.trap(sig) {}
  case default
  when "DEFAULT"
    puts "Using the default handler"
  when nil
    puts "No default handler"
  when Proc
    location = if default.respond_to?(:source_location)
      default.source_location
    else
      default.inspect
    end
    puts "Proc defined at #{location}"
  else
    raise "Unknown handler: #{default.inspect}"
  end
  exit
end

puts RUBY_DESCRIPTION

defaults = Hash.new do |h,k|
  h[k] = []
end

Signal.list.keys.map do |sig|
  default = `ruby #{$0} #{sig}`.chomp
  defaults[default] << sig
end

defaults.each do |type,signals|
  puts
  puts type
  p signals.sort
end