src: add SIGINFO to supported signals

jamesreggio · bnoordhuis · commit fb5f66a9fa7c · 2016-04-14T21:39:36.000+02:00
Though not a POSIX signal, SIGINFO is supported by BSD systems (including Mac OS X) and is amongst the few signals that can be triggered in a terminal via a simple key combination (CTRL-T). On Linux, SIGINFO is an alias for SIGPWR; hence the defensive conditionals in src/node.cc. PR-URL: nodejs#6093 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: James M Snell <jasnell@gmail.com>
diff --git a/src/node.cc b/src/node.cc
@@ -704,6 +704,12 @@ const char *signo_string(int signo) {
 # endif
 #endif
 
+#ifdef SIGINFO
+# if !defined(SIGPWR) || SIGINFO != SIGPWR
+  SIGNO_CASE(SIGINFO);
+# endif
+#endif
+
 #ifdef SIGSYS
   SIGNO_CASE(SIGSYS);
 #endif
diff --git a/src/node_constants.cc b/src/node_constants.cc
@@ -716,6 +716,10 @@ void DefineSignalConstants(Local<Object> target) {
   NODE_DEFINE_CONSTANT(target, SIGPWR);
 #endif
 
+#ifdef SIGINFO
+  NODE_DEFINE_CONSTANT(target, SIGINFO);
+#endif
+
 #ifdef SIGSYS
   NODE_DEFINE_CONSTANT(target, SIGSYS);
 #endif
