Methods
Public Class methods
Like Signal.list, but only returns signals that we can actually trap.
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# File lib/phusion_passenger/utils.rb, line 555 555: def self.list_trappable 556: ruby_engine = defined?(RUBY_ENGINE) ? RUBY_ENGINE : "ruby" 557: case ruby_engine 558: when "ruby" 559: result = Signal.list 560: result.delete("ALRM") 561: result.delete("VTALRM") 562: when "jruby" 563: result = Signal.list 564: result.delete("QUIT") 565: result.delete("ILL") 566: result.delete("FPE") 567: result.delete("KILL") 568: result.delete("SEGV") 569: result.delete("USR1") 570: else 571: result = Signal.list 572: end 573: 574: # Don't touch SIGCHLD no matter what! On OS X waitpid() will 575: # malfunction if SIGCHLD doesn't have a correct handler. 576: result.delete("CLD") 577: result.delete("CHLD") 578: 579: # Other stuff that we don't want to trap no matter which 580: # Ruby engine. 581: result.delete("STOP") 582: 583: return result 584: end