Methods
Public Class methods
list_trappable()

Like Signal.list, but only returns signals that we can actually trap.

     # File lib/phusion_passenger/utils.rb, line 466
466:         def self.list_trappable
467:                 ruby_engine = defined?(RUBY_ENGINE) ? RUBY_ENGINE : "mri"
468:                 case ruby_engine
469:                 when "mri"
470:                         if RUBY_VERSION >= '1.9.0'
471:                                 return Signal.list
472:                         else
473:                                 result = Signal.list
474:                                 result.delete("ALRM")
475:                                 return result
476:                         end
477:                 when "jruby"
478:                         result = Signal.list
479:                         result.delete("QUIT")
480:                         result.delete("ILL")
481:                         result.delete("FPE")
482:                         result.delete("KILL")
483:                         result.delete("SEGV")
484:                         result.delete("STOP")
485:                         result.delete("USR1")
486:                         return result
487:                 else
488:                         return Signal.list
489:                 end
490:         end