timer deopt

timers.patch

commit 8550e47a3da1537d1eb5abc590615ed09ac2b9b2
Author: Rod Vagg <rod@vagg.org>
Date:   Thu Jan 14 15:25:35 2016 +1100

    _timer

diff --git a/lib/timers.js b/lib/timers.js
index 27c03ad..2c95154 100644
--- a/lib/timers.js
+++ b/lib/timers.js
@@ -90,16 +90,18 @@ function insert(item, unrefed) {
     // Make a new linked list of timers.
     // The list object is a TimerWrap, a C++ handle backing the timers for
     // efficiency, and the linked list is appended onto it.
-    list = new Timer();
-    if (unrefed === true) list.unref();
+    list = {}
+    list._timer = new Timer();
+    list._timer._list = list;
+    if (unrefed === true) list._timer.unref();
     list._unrefed = unrefed;
-    list.start(msecs, 0);
+    list._timer.start(msecs, 0);
 
     L.init(list);
 
     lists[msecs] = list;
     list.msecs = msecs;
-    list[kOnTimeout] = listOnTimeout;
+    list._timer[kOnTimeout] = listOnTimeout;
   }
 
   L.append(list, item);
@@ -108,7 +110,7 @@ function insert(item, unrefed) {
 
 function listOnTimeout() {
   var msecs = this.msecs;
-  var list = this;
+  var list = this._list;
 
   debug('timeout callback %d', msecs);
 
@@ -124,7 +126,7 @@ function listOnTimeout() {
     // - There are more timers scheduled for later in the list. (Most common)
     // - The earliest timer was canceled (unenrolled). (Less common)
     if (diff < msecs) {
-      list.start(msecs - diff, 0);
+      list._timer.start(msecs - diff, 0);
       debug('%d list wait because diff is %d', msecs, diff);
       return;
     }
@@ -161,7 +163,7 @@ function listOnTimeout() {
   // As such, we can remove and clean up the timer list. (The TimerWrap)
   debug('%d list empty', msecs);
   assert(L.isEmpty(list));
-  list.close();
+  list._timer.close();
   if (list._unrefed === true) {
     delete unrefedLists[msecs];
   } else {
@@ -194,7 +196,7 @@ function _tryOnTimeout(timer, list) {
 
 
 function listOnTimeoutNT(list) {
-  list[kOnTimeout]();
+  list._timer[kOnTimeout]();
 }
 
 
@@ -211,7 +213,7 @@ function reuse(item) {
   // if empty - reuse the watcher
   if (list && L.isEmpty(list)) {
     debug('reuse hit');
-    list.stop();
+    list._timer.stop();
     delete refedLists[item._idleTimeout];
     return list;
   }
@@ -225,7 +227,7 @@ const unenroll = exports.unenroll = function(item) {
   var list = reuse(item);
   if (list) {
     debug('unenroll: list empty');
-    list.close();
+    list._timer.close();
   }
   // if active is called later, then we want to make sure not to insert again
   item._idleTimeout = -1;
@@ -428,6 +430,8 @@ Timeout.prototype.unref = function() {
     }
 
     var handle = reuse(this);
+    if (handle)
+      handle = handle._timer;
 
     this._handle = handle || new Timer();
     this._handle.owner = this;