chromium/net/third_party/quiche/src/quiche/quic/core/quic_one_block_arena.h

// Copyright (c) 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// An arena that consists of a single inlined block of |ArenaSize|. Useful to
// avoid repeated calls to malloc/new and to improve memory locality.
// QUICHE_DCHECK's if an allocation out of the arena ever fails in debug builds;
// falls back to heap allocation in release builds.

#ifndef QUICHE_QUIC_CORE_QUIC_ONE_BLOCK_ARENA_H_
#define QUICHE_QUIC_CORE_QUIC_ONE_BLOCK_ARENA_H_

#include <cstdint>

#include "absl/base/optimization.h"
#include "quiche/quic/core/quic_arena_scoped_ptr.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_logging.h"

namespace quic {

template <uint32_t ArenaSize>
class QUICHE_EXPORT QuicOneBlockArena { … };

// QuicConnections currently use around 1KB of polymorphic types which would
// ordinarily be on the heap. Instead, store them inline in an arena.
QuicConnectionArena;

}  // namespace quic

#endif  // QUICHE_QUIC_CORE_QUIC_ONE_BLOCK_ARENA_H_