wip: fix ipc on stdio

lib/internal/process.js

@@ -224,6 +224,12 @@ function setupChannel() {
     const fd = parseInt(process.env.NODE_CHANNEL_FD, 10);
     assert(fd >= 0);
 
+    Object.defineProperty(process, 'ipcChannelFd', {
+      configurable: true,
+      enumerable: true,
+      value: fd
+    });
+
     // Make sure it's not accidentally inherited by child processes.
     delete process.env.NODE_CHANNEL_FD;
 

lib/net.js

@@ -59,7 +59,11 @@ function noop() {}
 
 function createHandle(fd) {
   const type = TTYWrap.guessHandleType(fd);
-  if (type === 'PIPE') return new Pipe();
+  if (type === 'PIPE') {
+    const useIPCPipe = process.platform === 'win32' &&
+                       process.ipcChannelFd === fd;
+    return new Pipe(useIPCPipe);
+  }
   if (type === 'TCP') return new TCP();
   throw new errors.TypeError('ERR_INVALID_FD_TYPE', type);
 }

test/parallel/test-child-process-stdout-ipc.js

@@ -1,11 +1,25 @@
 'use strict';
 const common = require('../common');
 const assert = require('assert');
-
+const util = require('util');
+const fs = require('fs');
 const spawn = require('child_process').spawn;
 
 if (process.argv[2] === 'child') {
-  process.send('hahah');
+  const consoleLog = common.mustCall(() => {
+    console.log('{"method": "console.log"}');
+  })
+  const processSend = common.mustCall(() => {
+    process.send({method: 'process.send'}, consoleLog);
+  });
+  const fsWrite = common.mustCall(() => {
+    fs.write(1, '{"method": "process.fs.write"}\n', processSend);
+  });
+  const stdoutWrite = () => {
+    process.stdout.write('{"method": "process.stdout.write"}\n', fsWrite);
+  };
+
+  stdoutWrite();
   return;
 }
 
@@ -16,3 +30,13 @@ const proc = spawn(process.execPath, [__filename, 'child'], {
 proc.on('exit', common.mustCall(function(code) {
   assert.strictEqual(code, 0);
 }));
+
+let messagesReceived = 0;
+proc.on('message', (message) => {
+  console.log(`Received: ${util.inspect(message)}`);
+  ++messagesReceived;
+});
+
+process.on('exit', () => {
+  assert.equal(messagesReceived, 4, 'Not all messages has been received');
+})