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59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of clio: https://github.com/XRPLF/clio
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Copyright (c) 2024, the clio developers.
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Permission to use, copy, modify, and distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#pragma once
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#include "util/Assert.hpp"
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#include <cstddef>
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#include <functional>
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#include <iterator>
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namespace util {
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/**
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* @brief Iterate over a container in batches
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*
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* @param container The container to iterate over
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* @param batchSize The size of each batch
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* @param fn The function to call for each batch
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*/
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void
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forEachBatch(std::ranges::forward_range auto&& container, std::size_t batchSize, auto&& fn)
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{
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ASSERT(batchSize > 0, "Batch size must be greater than 0");
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auto to = std::begin(container);
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auto end = std::end(container);
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while (to != end) {
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auto from = to;
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auto cnt = batchSize;
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while (to != end and cnt > 0) {
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++to;
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--cnt;
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}
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std::invoke(fn, from, to);
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}
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}
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} // namespace util
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