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