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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /modules/libpref/StaticPrefsBase.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'modules/libpref/StaticPrefsBase.h')
-rw-r--r-- | modules/libpref/StaticPrefsBase.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/modules/libpref/StaticPrefsBase.h b/modules/libpref/StaticPrefsBase.h new file mode 100644 index 0000000000..597a5beda2 --- /dev/null +++ b/modules/libpref/StaticPrefsBase.h @@ -0,0 +1,93 @@ +/* -*- 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 |