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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/ThreadLocal.h"
#include "mozilla/dom/quota/StringifyUtils.h"
#include "nsTHashSet.h"
namespace mozilla {
MOZ_THREAD_LOCAL(nsTHashSet<Stringifyable*>*)
Stringifyable::sActiveStringifyableInstances;
#ifdef DEBUG
Atomic<bool> sStringifyableTLSInitialized(false);
#endif
void Stringifyable::Stringify(nsACString& aData) {
if (IsActive()) {
aData.Append("(...)"_ns);
return;
}
SetActive(true);
aData.Append(kStringifyStartInstance);
DoStringify(aData);
aData.Append(kStringifyEndInstance);
SetActive(false);
}
/* static */ void Stringifyable::InitTLS() {
if (sActiveStringifyableInstances.init()) {
#ifdef DEBUG
sStringifyableTLSInitialized = true;
#endif
}
}
bool Stringifyable::IsActive() {
MOZ_ASSERT(sStringifyableTLSInitialized);
auto* set = sActiveStringifyableInstances.get();
return set && set->Contains(this);
}
void Stringifyable::SetActive(bool aIsActive) {
MOZ_ASSERT(sStringifyableTLSInitialized);
auto* myset = sActiveStringifyableInstances.get();
if (!myset && aIsActive) {
myset = new nsTHashSet<Stringifyable*>();
sActiveStringifyableInstances.set(myset);
}
MOZ_ASSERT(myset);
if (aIsActive) {
myset->Insert(this);
} else {
myset->Remove(this);
if (myset->IsEmpty()) {
sActiveStringifyableInstances.set(nullptr);
delete myset;
}
}
}
} // namespace mozilla
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