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https://github.com/transmission/transmission.git
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48cde98788
* refactor: load stats with new tr_variant API * refactor: save stats with new tr_variant API
110 lines
3.2 KiB
C++
110 lines
3.2 KiB
C++
// This file Copyright © Mnemosyne LLC.
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// It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
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// or any future license endorsed by Mnemosyne LLC.
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// License text can be found in the licenses/ folder.
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#include <optional>
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#include <utility>
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#include "libtransmission/transmission.h"
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#include "libtransmission/file.h"
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#include "libtransmission/quark.h"
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#include "libtransmission/stats.h"
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#include "libtransmission/tr-strbuf.h"
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#include "libtransmission/utils.h" // for tr_getRatio(), tr_time()
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#include "libtransmission/variant.h"
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using namespace std::literals;
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namespace
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{
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std::optional<tr_variant> load_stats(std::string_view config_dir)
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{
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if (auto filename = tr_pathbuf{ config_dir, "/stats.json"sv }; tr_sys_path_exists(filename))
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{
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return tr_variant_serde::json().parse_file(filename);
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}
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// maybe the user just upgraded from an old version of Transmission
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// that was still using stats.benc
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if (auto filename = tr_pathbuf{ config_dir, "/stats.benc"sv }; tr_sys_path_exists(filename))
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{
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return tr_variant_serde::benc().parse_file(filename);
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}
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return {};
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}
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} // namespace
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tr_session_stats tr_stats::load_old_stats(std::string_view config_dir)
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{
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auto const stats = load_stats(config_dir);
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if (!stats)
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{
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return {};
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}
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auto const* const map = stats->get_if<tr_variant::Map>();
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if (map == nullptr)
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{
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return {};
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}
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auto const load = [map](tr_quark const quark, uint64_t& dst)
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{
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if (auto const val = map->value_if<int64_t>(quark); val)
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{
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dst = *val;
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}
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};
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auto ret = tr_session_stats{};
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load(TR_KEY_downloaded_bytes, ret.downloadedBytes);
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load(TR_KEY_files_added, ret.filesAdded);
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load(TR_KEY_seconds_active, ret.secondsActive);
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load(TR_KEY_session_count, ret.sessionCount);
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load(TR_KEY_uploaded_bytes, ret.uploadedBytes);
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return ret;
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}
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void tr_stats::save() const
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{
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auto const saveme = cumulative();
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auto map = tr_variant::Map{ 5 };
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map.try_emplace(TR_KEY_downloaded_bytes, saveme.downloadedBytes);
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map.try_emplace(TR_KEY_files_added, saveme.filesAdded);
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map.try_emplace(TR_KEY_seconds_active, saveme.secondsActive);
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map.try_emplace(TR_KEY_session_count, saveme.sessionCount);
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map.try_emplace(TR_KEY_uploaded_bytes, saveme.uploadedBytes);
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tr_variant_serde::json().to_file(tr_variant{ std::move(map) }, tr_pathbuf{ config_dir_, "/stats.json"sv });
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}
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void tr_stats::clear()
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{
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single_ = old_ = Zero;
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start_time_ = tr_time();
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}
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[[nodiscard]] tr_session_stats tr_stats::current() const
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{
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auto ret = single_;
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ret.secondsActive = time(nullptr) - start_time_;
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ret.ratio = tr_getRatio(ret.uploadedBytes, ret.downloadedBytes);
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return ret;
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}
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tr_session_stats tr_stats::add(tr_session_stats const& a, tr_session_stats const& b)
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{
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auto ret = tr_session_stats{};
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ret.uploadedBytes = a.uploadedBytes + b.uploadedBytes;
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ret.downloadedBytes = a.downloadedBytes + b.downloadedBytes;
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ret.filesAdded = a.filesAdded + b.filesAdded;
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ret.sessionCount = a.sessionCount + b.sessionCount;
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ret.secondsActive = a.secondsActive + b.secondsActive;
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ret.ratio = tr_getRatio(ret.uploadedBytes, ret.downloadedBytes);
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return ret;
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}
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