Quelle StaticPrefsBase.h Sprache: C

/* -*- 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/. */

#ifndef mozilla_StaticPrefsBase_h
#define mozilla_StaticPrefsBase_h

#include <type_traits>

#include "mozilla/Atomics.h"
#include "mozilla/DataMutex.h"
#include "nsString.h"

namespace mozilla {

class SharedPrefMapBuilder;

// These typedefs are for use within init/StaticPrefList*.h.

typedef const char* String;

using DataMutexString = StaticDataMutex<nsCString>;

template <typename T>
struct IsString : std::false_type {};

template <>
struct IsString<String> : std::true_type {};

template <>
struct IsString<DataMutexString> : std::true_type {};

typedef Atomic<bool, Relaxed> RelaxedAtomicBool;
typedef Atomic<bool, ReleaseAcquire> ReleaseAcquireAtomicBool;
typedef Atomic<bool, SequentiallyConsistent> SequentiallyConsistentAtomicBool;

typedef Atomic<int32_t, Relaxed> RelaxedAtomicInt32;
typedef Atomic<int32_t, ReleaseAcquire> ReleaseAcquireAtomicInt32;
typedef Atomic<int32_t, SequentiallyConsistent>
    SequentiallyConsistentAtomicInt32;

typedef Atomic<uint32_t, Relaxed> RelaxedAtomicUint32;
typedef Atomic<uint32_t, ReleaseAcquire> ReleaseAcquireAtomicUint32;
typedef Atomic<uint32_t, SequentiallyConsistent>
    SequentiallyConsistentAtomicUint32;

// XXX: Atomic<float> currently doesn't work (see bug 1552086). Once it's
// supported we will be able to use Atomic<float> here.
typedef std::atomic<float> AtomicFloat;

template <typename T>
struct StripAtomicImpl {
  typedef T Type;
};

template <typename T, MemoryOrdering Order>
struct StripAtomicImpl<Atomic<T, Order>> {
  typedef T Type;
};

template <typename T>
struct StripAtomicImpl<std::atomic<T>> {
  typedef T Type;
};

template <>
struct StripAtomicImpl<DataMutexString> {
  typedef nsCString Type;
};

template <typename T>
using StripAtomic = typename StripAtomicImpl<T>::Type;

template <typename T>
struct IsAtomic : std::false_type {};

template <typename T, MemoryOrdering Order>
struct IsAtomic<Atomic<T, Order>> : std::true_type {};

template <typename T>
struct IsAtomic<std::atomic<T>> : std::true_type {};

namespace StaticPrefs {

void MaybeInitOncePrefs();

}  // namespace StaticPrefs

}  // namespace mozilla

#endif  // mozilla_StaticPrefsBase_h

quality100%

¤ Dauer der Verarbeitung: 0.16 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.