Seastar
High performance C++ framework for concurrent servers
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buffer_allocator.hh
1/*
2 * This file is open source software, licensed to you under the terms
3 * of the Apache License, Version 2.0 (the "License"). See the NOTICE file
4 * distributed with this work for additional information regarding copyright
5 * ownership. You may not use this file except in compliance with the License.
6 *
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing,
12 * software distributed under the License is distributed on an
13 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14 * KIND, either express or implied. See the License for the
15 * specific language governing permissions and limitations
16 * under the License.
17 */
18/*
19 * Copyright (C) 2020 ScyllaDB
20 */
21
22#pragma once
23
24namespace seastar {
25
26template <typename CharType>
27class temporary_buffer;
28
29namespace internal {
30
31// Internal interface for allocating buffers for reads. Used to decouple
32// allocation strategies (where to allocate from, and what sizes) from the
33// point where allocation happens, to make it as late as possible.
34class buffer_allocator {
35public:
36 virtual ~buffer_allocator() = default;
37 virtual temporary_buffer<char> allocate_buffer() = 0;
38};
39
40
41}
42
43}
Seastar API namespace.
Definition: abort_on_ebadf.hh:26