lib: implement async_hooks API in core

Implement async_hooks support in the following:

* fatalException handler
* process.nextTick
* Timers
* net/dgram/http

PR-URL: https://github.com/nodejs/node/pull/12892
Ref: https://github.com/nodejs/node/pull/11883
Ref: https://github.com/nodejs/node/pull/8531
Reviewed-By: Andreas Madsen <amwebdk@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/lib/_http_client.js b/lib/_http_client.js
index e1f064e832..a238a4f14c 100644
--- a/lib/_http_client.js
+++ b/lib/_http_client.js
@@ -36,6 +36,7 @@ const Agent = require('_http_agent');
 const Buffer = require('buffer').Buffer;
 const urlToOptions = require('internal/url').urlToOptions;
 const outHeadersKey = require('internal/http').outHeadersKey;
+const nextTick = require('internal/process/next_tick').nextTick;
 
 // The actual list of disallowed characters in regexp form is more like:
 //    /[^A-Za-z0-9\-._~!$&'()*+,;=/:@]/
@@ -587,9 +588,12 @@ function responseKeepAlive(res, req) {
     socket.removeListener('close', socketCloseListener);
     socket.removeListener('error', socketErrorListener);
     socket.once('error', freeSocketErrorListener);
+    // There are cases where _handle === null. Avoid those. Passing null to
+    // nextTick() will call initTriggerId() to retrieve the id.
+    const asyncId = socket._handle ? socket._handle.getAsyncId() : null;
     // Mark this socket as available, AFTER user-added end
     // handlers have a chance to run.
-    process.nextTick(emitFreeNT, socket);
+    nextTick(asyncId, emitFreeNT, socket);
   }
 }