From e040ed925030f899f845d458c226f7e439f4ec8b Mon Sep 17 00:00:00 2001
From: janekptacijarabaci <janekptacijarabaci@seznam.cz>
Date: Sun, 29 Apr 2018 11:49:50 +0200
Subject: moebius#158: The Performance Resource Timing (added support for
 "workerStart")

https://github.com/MoonchildProductions/moebius/pull/158
---
 dom/workers/ServiceWorkerPrivate.cpp | 45 +++++++++++++++++++++++++++++++++---
 1 file changed, 42 insertions(+), 3 deletions(-)

(limited to 'dom/workers/ServiceWorkerPrivate.cpp')

diff --git a/dom/workers/ServiceWorkerPrivate.cpp b/dom/workers/ServiceWorkerPrivate.cpp
index eaa548f95..24b2e11e6 100644
--- a/dom/workers/ServiceWorkerPrivate.cpp
+++ b/dom/workers/ServiceWorkerPrivate.cpp
@@ -13,6 +13,7 @@
 #include "nsINetworkInterceptController.h"
 #include "nsIPushErrorReporter.h"
 #include "nsISupportsImpl.h"
+#include "nsITimedChannel.h"
 #include "nsIUploadChannel2.h"
 #include "nsNetUtil.h"
 #include "nsProxyRelease.h"
@@ -1255,6 +1256,7 @@ class FetchEventRunnable : public ExtendableFunctionalEventWorkerRunnable
   nsCString mMethod;
   nsString mClientId;
   bool mIsReload;
+  bool mMarkLaunchServiceWorkerEnd;
   RequestCache mCacheMode;
   RequestMode mRequestMode;
   RequestRedirect mRequestRedirect;
@@ -1273,13 +1275,15 @@ public:
                      const nsACString& aScriptSpec,
                      nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo>& aRegistration,
                      const nsAString& aDocumentId,
-                     bool aIsReload)
+                     bool aIsReload,
+                     bool aMarkLaunchServiceWorkerEnd)
     : ExtendableFunctionalEventWorkerRunnable(
         aWorkerPrivate, aKeepAliveToken, aRegistration)
     , mInterceptedChannel(aChannel)
     , mScriptSpec(aScriptSpec)
     , mClientId(aDocumentId)
     , mIsReload(aIsReload)
+    , mMarkLaunchServiceWorkerEnd(aMarkLaunchServiceWorkerEnd)
     , mCacheMode(RequestCache::Default)
     , mRequestMode(RequestMode::No_cors)
     , mRequestRedirect(RequestRedirect::Follow)
@@ -1417,6 +1421,12 @@ public:
   WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
   {
     MOZ_ASSERT(aWorkerPrivate);
+
+    if (mMarkLaunchServiceWorkerEnd) {
+      mInterceptedChannel->SetLaunchServiceWorkerEnd(TimeStamp::Now());
+    }
+
+    mInterceptedChannel->SetDispatchFetchEventEnd(TimeStamp::Now());
     return DispatchFetchEvent(aCx, aWorkerPrivate);
   }
 
@@ -1445,6 +1455,10 @@ private:
     NS_IMETHOD Run() override
     {
       AssertIsOnMainThread();
+
+      mChannel->SetHandleFetchEventEnd(TimeStamp::Now());
+      mChannel->SaveTimeStampsToUnderlyingChannel();
+
       nsresult rv = mChannel->ResetInterception();
       NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
                            "Failed to resume intercepted network request");
@@ -1520,6 +1534,8 @@ private:
     event->PostInit(mInterceptedChannel, mRegistration, mScriptSpec);
     event->SetTrusted(true);
 
+    mInterceptedChannel->SetHandleFetchEventStart(TimeStamp::Now());
+
     RefPtr<EventTarget> target = do_QueryObject(aWorkerPrivate->GlobalScope());
     nsresult rv2 = target->DispatchDOMEvent(nullptr, event, nullptr, nullptr);
     if (NS_WARN_IF(NS_FAILED(rv2)) || !event->WaitToRespond()) {
@@ -1614,9 +1630,21 @@ ServiceWorkerPrivate::SendFetchEvent(nsIInterceptedChannel* aChannel,
   nsCOMPtr<nsIRunnable> failRunnable =
     NewRunnableMethod(aChannel, &nsIInterceptedChannel::ResetInterception);
 
-  nsresult rv = SpawnWorkerIfNeeded(FetchEvent, failRunnable, aLoadGroup);
+  aChannel->SetLaunchServiceWorkerStart(TimeStamp::Now());
+  aChannel->SetDispatchFetchEventStart(TimeStamp::Now());
+
+  bool newWorkerCreated = false;
+  nsresult rv = SpawnWorkerIfNeeded(FetchEvent,
+                                    failRunnable,
+                                    &newWorkerCreated,
+                                    aLoadGroup);
+       
   NS_ENSURE_SUCCESS(rv, rv);
 
+  if (!newWorkerCreated) {
+    aChannel->SetLaunchServiceWorkerEnd(TimeStamp::Now());
+  }
+
   nsMainThreadPtrHandle<nsIInterceptedChannel> handle(
     new nsMainThreadPtrHolder<nsIInterceptedChannel>(aChannel, false));
 
@@ -1646,7 +1674,7 @@ ServiceWorkerPrivate::SendFetchEvent(nsIInterceptedChannel* aChannel,
   RefPtr<FetchEventRunnable> r =
     new FetchEventRunnable(mWorkerPrivate, token, handle,
                            mInfo->ScriptSpec(), regInfo,
-                           aDocumentId, aIsReload);
+                           aDocumentId, aIsReload, newWorkerCreated);
   rv = r->Init();
   if (NS_WARN_IF(NS_FAILED(rv))) {
     return rv;
@@ -1669,6 +1697,7 @@ ServiceWorkerPrivate::SendFetchEvent(nsIInterceptedChannel* aChannel,
 nsresult
 ServiceWorkerPrivate::SpawnWorkerIfNeeded(WakeUpReason aWhy,
                                           nsIRunnable* aLoadFailedRunnable,
+                                          bool* aNewWorkerCreated,
                                           nsILoadGroup* aLoadGroup)
 {
   AssertIsOnMainThread();
@@ -1679,6 +1708,12 @@ ServiceWorkerPrivate::SpawnWorkerIfNeeded(WakeUpReason aWhy,
   // the overriden load group when intercepting a fetch.
   MOZ_ASSERT_IF(aWhy == FetchEvent, aLoadGroup);
 
+  // Defaults to no new worker created, but if there is one, we'll set the value
+  // to true at the end of this function.
+  if (aNewWorkerCreated) {
+    *aNewWorkerCreated = false;
+  }
+
   if (mWorkerPrivate) {
     mWorkerPrivate->UpdateOverridenLoadGroup(aLoadGroup);
     RenewKeepAliveToken(aWhy);
@@ -1762,6 +1797,10 @@ ServiceWorkerPrivate::SpawnWorkerIfNeeded(WakeUpReason aWhy,
 
   RenewKeepAliveToken(aWhy);
 
+  if (aNewWorkerCreated) {
+    *aNewWorkerCreated = true;
+  }
+
   return NS_OK;
 }
 
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