"SIGNAL-STOP-EMISSION" "SIGNAL-ADD-EMISSION-HOOK"
"SIGNAL-REMOVE-EMISSION-HOOK" "SIGNAL-HAS-HANDLER-PENDING-P"
"SIGNAL-HANDLER-BLOCK" "SIGNAL-HANDLER-UNBLOCK"
"SIGNAL-STOP-EMISSION" "SIGNAL-ADD-EMISSION-HOOK"
"SIGNAL-REMOVE-EMISSION-HOOK" "SIGNAL-HAS-HANDLER-PENDING-P"
"SIGNAL-HANDLER-BLOCK" "SIGNAL-HANDLER-UNBLOCK"