src: move process.binding('signal_wrap') to internalBinding

lib/internal/bootstrap/node.js

@@ -67,7 +67,7 @@
     perThreadSetup.setupConfig(NativeModule._source);
 
     if (isMainThread) {
-      mainThreadSetup.setupSignalHandlers();
+      mainThreadSetup.setupSignalHandlers(internalBinding);
     }
 
     perThreadSetup.setupUncaughtExceptionCapture(exceptionHandlerState,
@@ -349,7 +349,8 @@
         'uv',
         'http_parser',
         'v8',
-        'stream_wrap']);
+        'stream_wrap',
+        'signal_wrap']);
     process.binding = function binding(name) {
       return internalBindingWhitelist.has(name) ?
         internalBinding(name) :

lib/internal/process/main_thread_only.js

@@ -117,7 +117,7 @@ function setupPosixMethods(_initgroups, _setegid, _seteuid,
 }
 
 // Worker threads don't receive signals.
-function setupSignalHandlers() {
+function setupSignalHandlers(internalBinding) {
   const constants = process.binding('constants').os.signals;
   const signalWraps = Object.create(null);
   let Signal;
@@ -130,7 +130,7 @@ function setupSignalHandlers() {
   process.on('newListener', function(type) {
     if (isSignal(type) && signalWraps[type] === undefined) {
       if (Signal === undefined)
-        Signal = process.binding('signal_wrap').Signal;
+        Signal = internalBinding('signal_wrap').Signal;
       const wrap = new Signal();
 
       wrap.unref();

src/signal_wrap.cc

@@ -128,4 +128,4 @@ class SignalWrap : public HandleWrap {
 }  // namespace node
 
 
-NODE_BUILTIN_MODULE_CONTEXT_AWARE(signal_wrap, node::SignalWrap::Initialize)
+NODE_MODULE_CONTEXT_AWARE_INTERNAL(signal_wrap, node::SignalWrap::Initialize)

test/parallel/test-process-binding-internalbinding-whitelist.js

@@ -10,3 +10,4 @@ assert(process.binding('uv'));
 assert(process.binding('http_parser'));
 assert(process.binding('v8'));
 assert(process.binding('stream_wrap'));
+assert(process.binding('signal_wrap'));

test/parallel/test-signal-safety.js

@@ -1,7 +1,9 @@
+// Flags: --expose-internals
 'use strict';
 require('../common');
 const assert = require('assert');
-const Signal = process.binding('signal_wrap').Signal;
+const { internalBinding } = require('internal/test/binding');
+const { Signal } = internalBinding('signal_wrap');
 
 // Test Signal `this` safety
 // https://github.com/joyent/node/issues/6690

test/sequential/test-async-wrap-getasyncid.js

@@ -1,5 +1,5 @@
 'use strict';
-// Flags: --expose-gc --expose-internals
+// Flags: --expose-gc --expose-internals --no-warnings
 
 const common = require('../common');
 const { internalBinding } = require('internal/test/binding');
@@ -187,7 +187,7 @@ if (common.hasCrypto) { // eslint-disable-line node-core/crypto-check
 }
 
 {
-  const Signal = process.binding('signal_wrap').Signal;
+  const { Signal } = internalBinding('signal_wrap');
   testInitialized(new Signal(), 'Signal');
 }