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