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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
commit43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree620249daf56c0258faa40cbdcf9cfba06de2a846 /toolkit/modules/ResponsivenessMonitor.sys.mjs
parentInitial commit. (diff)
downloadfirefox-upstream.tar.xz
firefox-upstream.zip
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'toolkit/modules/ResponsivenessMonitor.sys.mjs')
-rw-r--r--toolkit/modules/ResponsivenessMonitor.sys.mjs38
1 files changed, 38 insertions, 0 deletions
diff --git a/toolkit/modules/ResponsivenessMonitor.sys.mjs b/toolkit/modules/ResponsivenessMonitor.sys.mjs
new file mode 100644
index 0000000000..e92563d8ec
--- /dev/null
+++ b/toolkit/modules/ResponsivenessMonitor.sys.mjs
@@ -0,0 +1,38 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+export function ResponsivenessMonitor(intervalMS = 100) {
+ this._intervalMS = intervalMS;
+ this._prevTimestamp = Date.now();
+ this._accumulatedDelay = 0;
+ this._timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
+ this._timer.initWithCallback(
+ this,
+ this._intervalMS,
+ Ci.nsITimer.TYPE_REPEATING_SLACK
+ );
+}
+
+ResponsivenessMonitor.prototype = {
+ notify() {
+ let now = Date.now();
+ this._accumulatedDelay += Math.max(
+ 0,
+ now - this._prevTimestamp - this._intervalMS
+ );
+ this._prevTimestamp = now;
+ },
+
+ abort() {
+ if (this._timer) {
+ this._timer.cancel();
+ this._timer = null;
+ }
+ },
+
+ finish() {
+ this.abort();
+ return this._accumulatedDelay;
+ },
+};