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4261669447
Add a new `counts` property to PlacesObservers counting the number of times a PlacesEvent has been fired. This can be used to statistically evaluate the user activity, and increase/decrease rate of background recalculations when large events (migrations) happen, without having to do expensive I/O. Differential Revision: https://phabricator.services.mozilla.com/D204338
58 lines
2 KiB
C++
58 lines
2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "PlacesEventCounts.h"
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#include "mozilla/ErrorResult.h"
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#include "mozilla/dom/BindingUtils.h"
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#include "mozilla/dom/PlacesEventCounts.h"
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#include "mozilla/dom/PlacesEventBinding.h"
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#include "mozilla/dom/PlacesObserversBinding.h"
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namespace mozilla::dom {
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// Only needed for refcounted objects.
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(PlacesEventCounts)
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NS_IMPL_CYCLE_COLLECTING_ADDREF(PlacesEventCounts)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(PlacesEventCounts)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(PlacesEventCounts)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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PlacesEventCounts::PlacesEventCounts() {
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ErrorResult rv;
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for (auto eventType : MakeWebIDLEnumeratedRange<PlacesEventType>()) {
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PlacesEventCounts_Binding::MaplikeHelpers::Set(
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this, NS_ConvertUTF8toUTF16(GetEnumString(eventType)), 0, rv);
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if (NS_WARN_IF(rv.Failed())) {
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rv.SuppressException();
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return;
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}
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}
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}
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nsresult PlacesEventCounts::Increment(PlacesEventType aEventType) {
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ErrorResult rv;
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nsAutoCString eventName(GetEnumString(aEventType));
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uint64_t count = PlacesEventCounts_Binding::MaplikeHelpers::Get(
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this, NS_ConvertUTF8toUTF16(eventName), rv);
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if (MOZ_UNLIKELY(rv.Failed())) {
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return rv.StealNSResult();
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}
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PlacesEventCounts_Binding::MaplikeHelpers::Set(
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this, NS_ConvertUTF8toUTF16(eventName), ++count, rv);
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if (MOZ_UNLIKELY(rv.Failed())) {
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return rv.StealNSResult();
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}
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return NS_OK;
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}
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JSObject* PlacesEventCounts::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return PlacesEventCounts_Binding::Wrap(aCx, this, aGivenProto);
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}
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} // namespace mozilla::dom
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