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-rw-r--r--components/script/timers.rs22
-rw-r--r--tests/wpt/mozilla/meta/MANIFEST.json6
-rw-r--r--tests/wpt/mozilla/tests/mozilla/timer_eventInvalidation.html21
-rw-r--r--tests/wpt/mozilla/tests/mozilla/timer_eventInvalidation_test.html14
4 files changed, 55 insertions, 8 deletions
diff --git a/components/script/timers.rs b/components/script/timers.rs
index 4b8a2b6d272..7e164bbe5eb 100644
--- a/components/script/timers.rs
+++ b/components/script/timers.rs
@@ -23,7 +23,7 @@ use std::rc::Rc;
use util::mem::HeapSizeOf;
use util::str::DOMString;
-#[derive(JSTraceable, PartialEq, Eq, Copy, Clone, HeapSizeOf, Hash, PartialOrd, Ord)]
+#[derive(JSTraceable, PartialEq, Eq, Copy, Clone, HeapSizeOf, Hash, PartialOrd, Ord, Debug)]
pub struct TimerHandle(i32);
#[derive(JSTraceable, HeapSizeOf)]
@@ -253,16 +253,22 @@ impl ActiveTimers {
// Since the event id was the expected one, at least one timer should be due.
assert!(base_time >= self.timers.borrow().last().unwrap().next_call);
+ // select timers to run to prevent firing timers
+ // that were installed during fire of another timer
+ let mut timers_to_run: Vec<Timer> = Vec::new();
+
loop {
- let timer = {
- let mut timers = self.timers.borrow_mut();
+ let mut timers = self.timers.borrow_mut();
- if timers.is_empty() || timers.last().unwrap().next_call > base_time {
- break;
- }
+ if timers.is_empty() || timers.last().unwrap().next_call > base_time {
+ break;
+ }
+
+ timers_to_run.push(timers.pop().unwrap());
+ }
+
+ for timer in timers_to_run {
- timers.pop().unwrap()
- };
let callback = timer.callback.clone();
// prep for step 6 in nested set_timeout_or_interval calls
diff --git a/tests/wpt/mozilla/meta/MANIFEST.json b/tests/wpt/mozilla/meta/MANIFEST.json
index e2b7aa33d2d..f65dfa849e2 100644
--- a/tests/wpt/mozilla/meta/MANIFEST.json
+++ b/tests/wpt/mozilla/meta/MANIFEST.json
@@ -5661,6 +5661,12 @@
"url": "/_mozilla/mozilla/textcontent.html"
}
],
+ "mozilla/timer_eventInvalidation.html": [
+ {
+ "path": "mozilla/timer_eventInvalidation.html",
+ "url": "/_mozilla/mozilla/timer_eventInvalidation.html"
+ }
+ ],
"mozilla/title.html": [
{
"path": "mozilla/title.html",
diff --git a/tests/wpt/mozilla/tests/mozilla/timer_eventInvalidation.html b/tests/wpt/mozilla/tests/mozilla/timer_eventInvalidation.html
new file mode 100644
index 00000000000..4a182a62f75
--- /dev/null
+++ b/tests/wpt/mozilla/tests/mozilla/timer_eventInvalidation.html
@@ -0,0 +1,21 @@
+<html>
+ <head>
+ <script src="/resources/testharness.js"></script>
+ <script src="/resources/testharnessreport.js"></script>
+ </head>
+ <body>
+ <script>
+ async_test(function(test) {
+ // couldn't reproduce this behaviour without iframe
+ var iframe = document.createElement('iframe');
+ window.addEventListener('test_done', function() {
+ // if event invalidation is not properly implemented
+ // servo will crash during a short period of time
+ setTimeout(() => test.done(), 50);
+ }, false);
+ iframe.src = 'timer_eventInvalidation_test.html';
+ document.body.appendChild(iframe);
+ });
+ </script>
+ </body>
+</html>
diff --git a/tests/wpt/mozilla/tests/mozilla/timer_eventInvalidation_test.html b/tests/wpt/mozilla/tests/mozilla/timer_eventInvalidation_test.html
new file mode 100644
index 00000000000..9656e578605
--- /dev/null
+++ b/tests/wpt/mozilla/tests/mozilla/timer_eventInvalidation_test.html
@@ -0,0 +1,14 @@
+<html>
+ <head>
+ </head>
+ <body>
+ <script>
+ setTimeout(function() {
+ setTimeout(function() {
+ var e = new Event('test_done');
+ window.parent.dispatchEvent(e);
+ }, 0);
+ }, 0);
+ </script>
+ </body>
+</html>