74 lines
1.4 KiB
C++
74 lines
1.4 KiB
C++
#pragma once
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#include "../shard.h"
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#include "pch.h"
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#include "petal.h"
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namespace crib::internal::vase {
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struct LineIterator {
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PetalIterator it;
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const char *chunk;
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uint64_t len;
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Direction dir;
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uint64_t current_offset = 0;
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uint64_t last_line_offset = 0;
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LineIterator(Shard *root, uint64_t line_num, Direction dir);
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~LineIterator() = default;
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bool next(std::string *line);
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uint64_t byte_offset();
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};
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struct Iterator {
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Shard *root;
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std::string line;
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Iterator(Shard *root, uint64_t line_num, Direction dir)
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: root(root), it(root, line_num, dir) {
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Shard::retain(root);
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}
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~Iterator() {
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Shard::release(root);
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}
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Iterator(const Iterator &other)
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: root(other.root), it(other.it) {
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Shard::retain(root);
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}
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Iterator &operator=(const Iterator &other) {
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if (this != &other) {
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Shard::retain(other.root);
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Shard::release(root);
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root = other.root;
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it = other.it;
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}
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return *this;
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}
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Iterator(Iterator &&other) noexcept
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: root(other.root), it(std::move(other.it)) {
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other.root = nullptr;
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}
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Iterator &operator=(Iterator &&other) noexcept {
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if (this != &other) {
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Shard::release(root);
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root = other.root;
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it = std::move(other.it);
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other.root = nullptr;
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}
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return *this;
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}
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bool next() {
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return it.next(&line);
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}
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private:
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LineIterator it;
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};
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} // namespace crib::internal::vase
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