289 static SignalChain chains[_NSIG + 1];  variable
295     for (const auto& handler : chains[signo].special_handlers_) {  in Handler()
321   int handler_flags = chains[signo].action_.sa_flags;  in Handler()
325   sigorset(&mask, &ucontext->uc_sigmask64, &chains[signo].action_.sa_mask);  in Handler()
328   sigorset(&mask, &ucontext->uc_sigmask, &chains[signo].action_.sa_mask);  in Handler()
341     chains[signo].action_.sa_sigaction(signo, siginfo, ucontext_raw);  in Handler()
343     auto handler = chains[signo].action_.sa_handler;  in Handler()
368   if (chains[signal].IsClaimed()) {  in __sigaction()
369     SigactionType saved_action = chains[signal].GetAction<SigactionType>();  in __sigaction()
371       chains[signal].SetAction(new_action);  in __sigaction()
414   if (chains[signo].IsClaimed()) {  in signal()
416         chains[signo].GetAction<struct sigaction>().sa_handler);  in signal()
417     chains[signo].SetAction(&sa);  in signal()
455         if (chains[i].IsClaimed() && sigismember(&tmpset, i)) {  in __sigprocmask()
488   chains[signal].AddSpecialHandler(sa);  in AddSpecialSignalHandlerFn()
489   chains[signal].Claim(signal);  in AddSpecialSignalHandlerFn()
499   chains[signal].RemoveSpecialHandler(fn);  in RemoveSpecialSignalHandlerFn()
517     chains[signal].Register(signal);  in EnsureFrontOfChain()