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-rw-r--r--dom/performance/PerformanceTiming.cpp48
1 files changed, 48 insertions, 0 deletions
diff --git a/dom/performance/PerformanceTiming.cpp b/dom/performance/PerformanceTiming.cpp
index 527cf9441..4070b6a0f 100644
--- a/dom/performance/PerformanceTiming.cpp
+++ b/dom/performance/PerformanceTiming.cpp
@@ -63,12 +63,40 @@ PerformanceTiming::InitializeTimingInfo(nsITimedChannel* aChannel)
aChannel->GetDomainLookupStart(&mDomainLookupStart);
aChannel->GetDomainLookupEnd(&mDomainLookupEnd);
aChannel->GetConnectStart(&mConnectStart);
+ aChannel->GetSecureConnectionStart(&mSecureConnectionStart);
aChannel->GetConnectEnd(&mConnectEnd);
aChannel->GetRequestStart(&mRequestStart);
aChannel->GetResponseStart(&mResponseStart);
aChannel->GetCacheReadStart(&mCacheReadStart);
aChannel->GetResponseEnd(&mResponseEnd);
aChannel->GetCacheReadEnd(&mCacheReadEnd);
+
+ // the performance timing api essentially requires that the event timestamps
+ // are >= asyncOpen().. but in truth the browser engages in a number of
+ // speculative activities that sometimes mean connections and lookups begin
+ // earlier. Workaround that here by just using asyncOpen as the minimum
+ // timestamp for dns and connection info.
+ if (!mAsyncOpen.IsNull()) {
+ if (!mDomainLookupStart.IsNull() && mDomainLookupStart < mAsyncOpen) {
+ mDomainLookupStart = mAsyncOpen;
+ }
+
+ if (!mDomainLookupEnd.IsNull() && mDomainLookupEnd < mAsyncOpen) {
+ mDomainLookupEnd = mAsyncOpen;
+ }
+
+ if (!mConnectStart.IsNull() && mConnectStart < mAsyncOpen) {
+ mConnectStart = mAsyncOpen;
+ }
+
+ if (!mSecureConnectionStart.IsNull() && mSecureConnectionStart < mAsyncOpen) {
+ mSecureConnectionStart = mAsyncOpen;
+ }
+
+ if (!mConnectEnd.IsNull() && mConnectEnd < mAsyncOpen) {
+ mConnectEnd = mAsyncOpen;
+ }
+ }
}
}
@@ -274,6 +302,26 @@ PerformanceTiming::ConnectStart()
}
DOMHighResTimeStamp
+PerformanceTiming::SecureConnectionStartHighRes()
+{
+ if (!nsContentUtils::IsPerformanceTimingEnabled() || !IsInitialized()) {
+ return mZeroTime;
+ }
+
+ // Round down to the nearest 1ms
+ const double maxResolutionMs = 1;
+ return mSecureConnectionStart.IsNull()
+ ? mZeroTime
+ : floor(TimeStampToDOMHighRes(mSecureConnectionStart) / maxResolutionMs) * maxResolutionMs;
+}
+
+DOMTimeMilliSec
+PerformanceTiming::SecureConnectionStart()
+{
+ return static_cast<int64_t>(SecureConnectionStartHighRes());
+}
+
+DOMHighResTimeStamp
PerformanceTiming::ConnectEndHighRes()
{
if (!nsContentUtils::IsPerformanceTimingEnabled() || !IsInitialized()) {