85 lines
2.6 KiB
C++
85 lines
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 "mozilla/glean/bindings/Ping.h"
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#include "mozilla/AppShutdown.h"
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#include "mozilla/ClearOnShutdown.h"
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#include "mozilla/Components.h"
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#include "nsIClassInfoImpl.h"
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#include "nsTHashMap.h"
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#include "nsString.h"
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namespace mozilla::glean {
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namespace impl {
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using CallbackMapType = nsTHashMap<uint32_t, PingTestCallback>;
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using MetricIdToCallbackMutex = StaticDataMutex<UniquePtr<CallbackMapType>>;
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static Maybe<MetricIdToCallbackMutex::AutoLock> GetCallbackMapLock() {
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static MetricIdToCallbackMutex sCallbacks("sCallbacks");
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auto lock = sCallbacks.Lock();
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// Test callbacks will continue to work until the end of AppShutdownTelemetry
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if (AppShutdown::IsInOrBeyond(ShutdownPhase::XPCOMWillShutdown)) {
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return Nothing();
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}
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if (!*lock) {
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*lock = MakeUnique<CallbackMapType>();
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RunOnShutdown(
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[&] {
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auto lock = sCallbacks.Lock();
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*lock = nullptr; // deletes, see UniquePtr.h
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},
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ShutdownPhase::XPCOMWillShutdown);
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}
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return Some(std::move(lock));
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}
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void Ping::Submit(const nsACString& aReason) const {
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{
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auto callback = Maybe<PingTestCallback>();
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GetCallbackMapLock().apply(
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[&](const auto& lock) { callback = lock.ref()->Extract(mId); });
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// Calling the callback outside of the lock allows it to register a new
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// callback itself.
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if (callback) {
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callback.extract()(aReason);
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}
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}
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fog_submit_ping_by_id(mId, &aReason);
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}
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void Ping::TestBeforeNextSubmit(PingTestCallback&& aCallback) const {
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{
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GetCallbackMapLock().apply(
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[&](const auto& lock) { lock.ref()->InsertOrUpdate(mId, aCallback); });
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}
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}
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} // namespace impl
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NS_IMPL_CLASSINFO(GleanPing, nullptr, 0, {0})
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NS_IMPL_ISUPPORTS_CI(GleanPing, nsIGleanPing)
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NS_IMETHODIMP
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GleanPing::Submit(const nsACString& aReason) {
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mPing.Submit(aReason);
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return NS_OK;
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}
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NS_IMETHODIMP
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GleanPing::TestBeforeNextSubmit(nsIGleanPingTestCallback* aCallback) {
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if (NS_WARN_IF(!aCallback)) {
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return NS_ERROR_INVALID_ARG;
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}
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// Throw the bare ptr into a COM ptr to keep it around in the lambda.
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nsCOMPtr<nsIGleanPingTestCallback> callback = aCallback;
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mPing.TestBeforeNextSubmit(
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[callback](const nsACString& aReason) { callback->Call(aReason); });
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return NS_OK;
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}
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} // namespace mozilla::glean
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