62 lines
1.5 KiB
C++
62 lines
1.5 KiB
C++
/*
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* Copyright (C) 2018-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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#include <seastar/core/iostream.hh>
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#include <seastar/core/temporary_buffer.hh>
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#include "utils/small_vector.hh"
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#include "seastarx.hh"
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#pragma once
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// Accumulates data sent to the memory_data_sink allowing it
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// to be examined later.
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class memory_data_sink_buffers {
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using buffers_type = utils::small_vector<temporary_buffer<char>, 1>;
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buffers_type _bufs;
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size_t _size = 0;
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public:
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size_t size() const { return _size; }
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buffers_type& buffers() { return _bufs; }
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// Strong exception guarantees
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void put(temporary_buffer<char>&& buf) {
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auto size = buf.size();
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_bufs.emplace_back(std::move(buf));
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_size += size;
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}
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void clear() {
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_bufs.clear();
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_size = 0;
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}
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};
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class memory_data_sink : public data_sink_impl {
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memory_data_sink_buffers& _bufs;
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public:
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memory_data_sink(memory_data_sink_buffers& b) : _bufs(b) {}
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virtual future<> put(net::packet data) override {
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abort();
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return make_ready_future<>();
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}
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virtual future<> put(temporary_buffer<char> buf) override {
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_bufs.put(std::move(buf));
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return make_ready_future<>();
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}
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virtual future<> flush() override {
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return make_ready_future<>();
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}
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virtual future<> close() override {
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return make_ready_future<>();
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}
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size_t buffer_size() const noexcept override {
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return 128*1024;
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}
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};
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