[WinCairo][CURL] NetworkProcess consumes CPU resource greedily

https://bugs.webkit.org/show_bug.cgi?id=214383

Reviewed by Fujii Hironori.

Add PolicyAction::Ignore handling routine in NetworkDataTaskCurl::invokeDidReceiveResponse()
If we don't cancel the ignored requests the worker thread for curl scheduler goes busy-looping because the fds of the requests continue to be monitored.

No tests needed as existing tests cover this change.

* NetworkProcess/curl/NetworkDataTaskCurl.cpp:
(WebKit::NetworkDataTaskCurl::invokeDidReceiveResponse):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@264485 268f45cc-cd09-0410-ab3c-d52691b4dbfc

Author: [email protected]

Source/WebKit/ChangeLog

@@ -1,3 +1,18 @@
+2020-07-16  Takashi Komori  <[email protected]>
+
+        [WinCairo][CURL] NetworkProcess consumes CPU resource greedily
+        https://bugs.webkit.org/show_bug.cgi?id=214383
+
+        Reviewed by Fujii Hironori.
+
+        Add PolicyAction::Ignore handling routine in NetworkDataTaskCurl::invokeDidReceiveResponse()
+        If we don't cancel the ignored requests the worker thread for curl scheduler goes busy-looping because the fds of the requests continue to be monitored.
+
+        No tests needed as existing tests cover this change.
+
+        * NetworkProcess/curl/NetworkDataTaskCurl.cpp:
+        (WebKit::NetworkDataTaskCurl::invokeDidReceiveResponse):
+
 2020-07-16  Tim Horton  <[email protected]>
 
         iPad cursor is sometimes slow to change to I-beam (e.g. on reddit.com)

Source/WebKit/NetworkProcess/curl/NetworkDataTaskCurl.cpp

@@ -236,6 +236,7 @@ void NetworkDataTaskCurl::invokeDidReceiveResponse()
                 m_curlRequest->completeDidReceiveResponse();
             break;
         case PolicyAction::Ignore:
+            invalidateAndCancel();
             break;
         default:
             notImplemented();