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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /toolkit/modules/ResponsivenessMonitor.sys.mjs | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
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.mjs | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/toolkit/modules/ResponsivenessMonitor.sys.mjs b/toolkit/modules/ResponsivenessMonitor.sys.mjs new file mode 100644 index 0000000000..2437fbbd6c --- /dev/null +++ b/toolkit/modules/ResponsivenessMonitor.sys.mjs @@ -0,0 +1,42 @@ +/* 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 = { + QueryInterface: ChromeUtils.generateQI(["nsINamed", "nsITimerCallback"]), + + name: "ResponsivenessMonitor", + + 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; + }, +}; |