In-memory thread-safe cache for language pack strings.
GitOrigin-RevId: 71dc10a925f1000590501c4ddfc307806e242e51
This commit is contained in:
levlam
parent
f3aaff1e1a
commit
08db51cdce
@ -1661,7 +1661,7 @@ languagePackStringValue key:string value:string = LanguagePackString;
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//@few_value Value for few objects @many_value Value for many objects @other_value Default value
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languagePackStringPluralized key:string zero_value:string one_value:string two_value:string few_value:string many_value:string other_value:string = LanguagePackString;
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//@description A deleted language pack string @key String key
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//@description A deleted language pack string, the value should be taken from a built-in english language pack @key String key
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languagePackStringDeleted key:string = LanguagePackString;
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@ -66,6 +66,117 @@ void LanguagePackManager::inc_generation() {
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language_pack_version_ = -1;
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}
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LanguagePackManager::Language *LanguagePackManager::get_language(const string &language_pack,
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const string &language_code) {
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std::unique_lock<std::mutex> lock(language_packs_mutex_);
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auto it = language_packs_.find(language_pack);
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if (it == language_packs_.end()) {
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return nullptr;
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}
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LanguagePack *pack = it->second.get();
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lock.unlock();
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return get_language(pack, language_code);
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}
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LanguagePackManager::Language *LanguagePackManager::get_language(LanguagePack *language_pack,
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const string &language_code) {
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CHECK(language_pack != nullptr);
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std::lock_guard<std::mutex> lock(language_pack->mutex_);
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auto it = language_pack->languages_.find(language_code);
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if (it == language_pack->languages_.end()) {
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return nullptr;
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}
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return it->second.get();
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}
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LanguagePackManager::Language *LanguagePackManager::add_language(const string &language_pack,
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const string &language_code) {
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std::lock_guard<std::mutex> packs_lock(language_packs_mutex_);
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auto pack_it = language_packs_.find(language_pack);
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if (pack_it == language_packs_.end()) {
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pack_it = language_packs_.emplace(language_pack, make_unique<LanguagePack>()).first;
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}
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LanguagePack *pack = pack_it->second.get();
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std::lock_guard<std::mutex> languages_lock(pack->mutex_);
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auto code_it = pack->languages_.find(language_code);
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if (code_it == pack->languages_.end()) {
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code_it = pack->languages_.emplace(language_code, make_unique<Language>()).first;
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}
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return code_it->second.get();
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}
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bool LanguagePackManager::language_has_string_unsafe(Language *language, const string &key) {
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return language->ordinary_strings_.count(key) != 0 || language->pluralized_strings_.count(key) != 0 ||
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language->deleted_strings_.count(key) != 0;
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}
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bool LanguagePackManager::language_has_strings(Language *language, const vector<string> &keys) {
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if (language == nullptr) {
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return false;
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}
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std::lock_guard<std::mutex> lock(language->mutex_);
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if (keys.empty()) {
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return language->version_ != -1;
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}
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for (auto &key : keys) {
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if (!language_has_string_unsafe(language, key)) {
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return false;
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}
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}
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return true;
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}
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td_api::object_ptr<td_api::LanguagePackString> LanguagePackManager::get_language_pack_string_object(
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const std::pair<string, string> &str) {
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return td_api::make_object<td_api::languagePackStringValue>(str.first, str.second);
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}
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td_api::object_ptr<td_api::LanguagePackString> LanguagePackManager::get_language_pack_string_object(
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const std::pair<string, PluralizedString> &str) {
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return td_api::make_object<td_api::languagePackStringPluralized>(
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str.first, str.second.zero_value_, str.second.one_value_, str.second.two_value_, str.second.few_value_,
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str.second.many_value_, str.second.other_value_);
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}
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td_api::object_ptr<td_api::LanguagePackString> LanguagePackManager::get_language_pack_string_object(const string &str) {
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return td_api::make_object<td_api::languagePackStringDeleted>(str);
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}
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td_api::object_ptr<td_api::languagePackStrings> LanguagePackManager::get_language_pack_strings_object(
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Language *language, const vector<string> &keys) {
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CHECK(language != nullptr);
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std::lock_guard<std::mutex> lock(language->mutex_);
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vector<td_api::object_ptr<td_api::LanguagePackString>> strings;
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if (keys.empty()) {
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for (auto &str : language->ordinary_strings_) {
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strings.push_back(get_language_pack_string_object(str));
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}
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for (auto &str : language->pluralized_strings_) {
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strings.push_back(get_language_pack_string_object(str));
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}
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} else {
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for (auto &key : keys) {
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auto ordinary_it = language->ordinary_strings_.find(key);
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if (ordinary_it != language->ordinary_strings_.end()) {
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strings.push_back(get_language_pack_string_object(*ordinary_it));
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continue;
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}
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auto pluralized_it = language->pluralized_strings_.find(key);
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if (pluralized_it != language->pluralized_strings_.end()) {
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strings.push_back(get_language_pack_string_object(*pluralized_it));
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continue;
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}
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LOG_IF(ERROR, language->deleted_strings_.count(key) == 0) << "Have no string for key " << key;
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strings.push_back(get_language_pack_string_object(key));
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}
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}
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return td_api::make_object<td_api::languagePackStrings>(std::move(strings));
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}
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void LanguagePackManager::get_languages(Promise<td_api::object_ptr<td_api::languagePack>> promise) {
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auto request_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
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auto r_result = fetch_result<telegram_api::langpack_getLanguages>(std::move(r_query));
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@ -88,17 +199,15 @@ void LanguagePackManager::get_languages(Promise<td_api::object_ptr<td_api::langu
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void LanguagePackManager::get_language_pack_strings(string language_code, vector<string> keys,
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Promise<td_api::object_ptr<td_api::languagePackStrings>> promise) {
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bool is_all = keys.empty();
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auto result_promise =
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PromiseCreator::lambda([actor_id = actor_id(this), is_all, promise = std::move(promise)](
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Result<vector<tl_object_ptr<telegram_api::LangPackString>>> r_result) mutable {
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send_closure(actor_id, &LanguagePackManager::on_get_language_pack_strings, std::move(r_result), is_all,
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std::move(promise));
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});
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Language *language = get_language(language_pack_, language_code);
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if (language_has_strings(language, keys)) {
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return promise.set_value(get_language_pack_strings_object(language, keys));
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}
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if (is_all) {
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if (keys.empty()) {
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auto request_promise =
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PromiseCreator::lambda([promise = std::move(result_promise)](Result<NetQueryPtr> r_query) mutable {
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PromiseCreator::lambda([actor_id = actor_id(this), language_pack = language_pack_, language_code,
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promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
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auto r_result = fetch_result<telegram_api::langpack_getLangPack>(std::move(r_query));
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if (r_result.is_error()) {
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return promise.set_error(r_result.move_as_error());
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@ -108,19 +217,26 @@ void LanguagePackManager::get_language_pack_strings(string language_code, vector
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LOG(INFO) << "Receive language pack for language " << result->lang_code_ << " from version "
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<< result->from_version_ << " with version " << result->version_ << " of size "
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<< result->strings_.size();
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promise.set_value(std::move(result->strings_));
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LOG_IF(ERROR, result->lang_code_ != language_code)
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<< "Receive strings for " << result->lang_code_ << " instead of " << language_code;
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LOG_IF(ERROR, result->from_version_ != 0) << "Receive lang pack from version " << result->from_version_;
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send_closure(actor_id, &LanguagePackManager::on_get_language_pack_strings, std::move(language_pack),
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std::move(language_code), result->version_, vector<string>(), std::move(result->strings_),
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std::move(promise));
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});
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send_with_promise(G()->net_query_creator().create(create_storer(telegram_api::langpack_getLangPack(language_code))),
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std::move(request_promise));
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} else {
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auto request_promise =
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PromiseCreator::lambda([promise = std::move(result_promise)](Result<NetQueryPtr> r_query) mutable {
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PromiseCreator::lambda([actor_id = actor_id(this), language_pack = language_pack_, language_code, keys,
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promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
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auto r_result = fetch_result<telegram_api::langpack_getStrings>(std::move(r_query));
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if (r_result.is_error()) {
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return promise.set_error(r_result.move_as_error());
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}
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promise.set_value(r_result.move_as_ok());
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send_closure(actor_id, &LanguagePackManager::on_get_language_pack_strings, std::move(language_pack),
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std::move(language_code), -1, std::move(keys), r_result.move_as_ok(), std::move(promise));
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});
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send_with_promise(G()->net_query_creator().create(
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create_storer(telegram_api::langpack_getStrings(language_code, std::move(keys)))),
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@ -129,36 +245,57 @@ void LanguagePackManager::get_language_pack_strings(string language_code, vector
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}
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void LanguagePackManager::on_get_language_pack_strings(
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Result<vector<tl_object_ptr<telegram_api::LangPackString>>> r_result, bool ia_all,
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string language_pack, string language_code, int32 version, vector<string> keys,
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vector<tl_object_ptr<telegram_api::LangPackString>> results,
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Promise<td_api::object_ptr<td_api::languagePackStrings>> promise) {
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if (r_result.is_error()) {
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return promise.set_error(r_result.move_as_error());
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Language *language = get_language(language_pack, language_code);
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if (language == nullptr || (language->version_ < version || !keys.empty())) {
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if (language == nullptr) {
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language = add_language(language_pack, language_code);
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CHECK(language != nullptr);
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}
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auto result =
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transform(r_result.move_as_ok(), [](const auto &string_ptr) -> tl_object_ptr<td_api::LanguagePackString> {
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CHECK(string_ptr != nullptr);
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switch (string_ptr->get_id()) {
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std::lock_guard<std::mutex> lock(language->mutex_);
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if (language->version_ < version || !keys.empty()) {
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if (language->version_ < version) {
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language->version_ = version;
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}
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for (auto &result : results) {
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CHECK(result != nullptr);
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switch (result->get_id()) {
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case telegram_api::langPackString::ID: {
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auto str = static_cast<const telegram_api::langPackString *>(string_ptr.get());
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return make_tl_object<td_api::languagePackStringValue>(str->key_, str->value_);
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auto str = static_cast<telegram_api::langPackString *>(result.get());
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language->ordinary_strings_[str->key_] = std::move(str->value_);
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break;
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}
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case telegram_api::langPackStringPluralized::ID: {
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auto str = static_cast<const telegram_api::langPackStringPluralized *>(string_ptr.get());
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return make_tl_object<td_api::languagePackStringPluralized>(str->key_, str->zero_value_, str->one_value_,
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str->two_value_, str->few_value_,
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str->many_value_, str->other_value_);
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auto str = static_cast<const telegram_api::langPackStringPluralized *>(result.get());
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language->pluralized_strings_[str->key_] = PluralizedString{
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std::move(str->zero_value_), std::move(str->one_value_), std::move(str->two_value_),
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std::move(str->few_value_), std::move(str->many_value_), std::move(str->other_value_)};
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break;
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}
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case telegram_api::langPackStringDeleted::ID: {
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auto str = static_cast<const telegram_api::langPackStringDeleted *>(string_ptr.get());
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return make_tl_object<td_api::languagePackStringDeleted>(str->key_);
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auto str = static_cast<const telegram_api::langPackStringDeleted *>(result.get());
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language->deleted_strings_.insert(std::move(str->key_));
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break;
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}
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default:
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UNREACHABLE();
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return nullptr;
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break;
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}
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}
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for (auto &key : keys) {
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if (!language_has_string_unsafe(language, key)) {
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LOG(ERROR) << "Doesn't receive key " << key << " from server";
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language->deleted_strings_.insert(key);
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}
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}
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});
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promise.set_value(make_tl_object<td_api::languagePackStrings>(std::move(result)));
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// TODO save language
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}
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}
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promise.set_value(get_language_pack_strings_object(language, keys));
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}
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void LanguagePackManager::on_result(NetQueryPtr query) {
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@ -177,4 +314,7 @@ void LanguagePackManager::hangup() {
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stop();
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}
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std::mutex LanguagePackManager::language_packs_mutex_;
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std::unordered_map<string, std::unique_ptr<LanguagePackManager::LanguagePack>> LanguagePackManager::language_packs_;
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} // namespace td
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@ -17,6 +17,11 @@
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#include "td/utils/Container.h"
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#include "td/utils/Status.h"
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#include <atomic>
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#include <mutex>
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#include <unordered_map>
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#include <unordered_set>
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namespace td {
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class LanguagePackManager : public NetQueryCallback {
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@ -36,6 +41,28 @@ class LanguagePackManager : public NetQueryCallback {
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Promise<td_api::object_ptr<td_api::languagePackStrings>> promise);
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private:
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struct PluralizedString {
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string zero_value_;
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string one_value_;
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string two_value_;
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string few_value_;
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string many_value_;
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string other_value_;
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};
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struct Language {
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std::mutex mutex_; // TODO RwMutex
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std::atomic<int32> version_ = -1;
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std::unordered_map<string, string> ordinary_strings_;
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std::unordered_map<string, PluralizedString> pluralized_strings_;
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std::unordered_set<string> deleted_strings_;
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};
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struct LanguagePack {
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std::mutex mutex_;
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std::unordered_map<string, std::unique_ptr<Language>> languages_;
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};
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ActorShared<> parent_;
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string language_pack_;
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@ -44,9 +71,30 @@ class LanguagePackManager : public NetQueryCallback {
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int32 language_pack_version_ = -1;
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static std::mutex language_packs_mutex_;
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static std::unordered_map<string, std::unique_ptr<LanguagePack>> language_packs_;
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static Language *get_language(const string &language_pack, const string &language_code);
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static Language *get_language(LanguagePack *language_pack, const string &language_code);
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static Language *add_language(const string &language_pack, const string &language_code);
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static bool language_has_string_unsafe(Language *language, const string &key);
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static bool language_has_strings(Language *language, const vector<string> &keys);
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static td_api::object_ptr<td_api::LanguagePackString> get_language_pack_string_object(
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const std::pair<string, string> &str);
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static td_api::object_ptr<td_api::LanguagePackString> get_language_pack_string_object(
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const std::pair<string, PluralizedString> &str);
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static td_api::object_ptr<td_api::LanguagePackString> get_language_pack_string_object(const string &str);
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static td_api::object_ptr<td_api::languagePackStrings> get_language_pack_strings_object(Language *language,
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const vector<string> &keys);
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void inc_generation();
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void on_get_language_pack_strings(Result<vector<tl_object_ptr<telegram_api::LangPackString>>> r_result, bool ia_all,
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void on_get_language_pack_strings(string language_pack, string language_code, int32 version, vector<string> keys,
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vector<tl_object_ptr<telegram_api::LangPackString>> results,
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Promise<td_api::object_ptr<td_api::languagePackStrings>> promise);
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void on_result(NetQueryPtr query) override;
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@ -17,6 +17,7 @@
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#endif
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namespace td {
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class RwMutex {
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public:
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RwMutex() {
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