tdlight/td/telegram/Logging.cpp

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//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include "td/telegram/Logging.h"
#include "td/mtproto/SessionConnection.h"
#include "td/mtproto/Transport.h"
#include "td/telegram/ConfigManager.h"
#include "td/telegram/FileReferenceManager.h"
#include "td/telegram/files/FileGcWorker.h"
#include "td/telegram/files/FileLoaderUtils.h"
#include "td/telegram/files/FileManager.h"
#include "td/telegram/net/ConnectionCreator.h"
#include "td/telegram/net/DcAuthManager.h"
#include "td/telegram/net/NetQuery.h"
#include "td/telegram/NotificationManager.h"
#include "td/telegram/Td.h"
#include "td/telegram/UpdatesManager.h"
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#include "td/db/binlog/Binlog.h"
#include "td/db/SqliteStatement.h"
#include "td/net/GetHostByNameActor.h"
#include "td/net/TransparentProxy.h"
#include "td/actor/actor.h"
#include "td/utils/algorithm.h"
#include "td/utils/ExitGuard.h"
#include "td/utils/FileLog.h"
#include "td/utils/logging.h"
#include "td/utils/misc.h"
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#include "td/utils/NullLog.h"
#include "td/utils/port/detail/NativeFd.h"
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#include "td/utils/TsLog.h"
#include <atomic>
#include <map>
#include <mutex>
namespace td {
static std::mutex logging_mutex;
static FileLog file_log;
static TsLog ts_log(&file_log);
static NullLog null_log;
static ExitGuard exit_guard;
#define ADD_TAG(tag) \
{ #tag, &VERBOSITY_NAME(tag) }
static const std::map<Slice, int *> log_tags{
ADD_TAG(td_init), ADD_TAG(update_file), ADD_TAG(connections), ADD_TAG(binlog),
ADD_TAG(proxy), ADD_TAG(net_query), ADD_TAG(td_requests), ADD_TAG(dc),
ADD_TAG(file_loader), ADD_TAG(mtproto), ADD_TAG(raw_mtproto), ADD_TAG(fd),
ADD_TAG(actor), ADD_TAG(sqlite), ADD_TAG(notifications), ADD_TAG(get_difference),
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ADD_TAG(file_gc), ADD_TAG(config_recoverer), ADD_TAG(dns_resolver), ADD_TAG(file_references),
ADD_TAG(messages), ADD_TAG(postponed_pts_update), ADD_TAG(add_pending_update)};
#undef ADD_TAG
Status Logging::set_current_stream(td_api::object_ptr<td_api::LogStream> stream) {
if (stream == nullptr) {
return Status::Error("Log stream must be non-empty");
}
std::lock_guard<std::mutex> lock(logging_mutex);
switch (stream->get_id()) {
case td_api::logStreamDefault::ID:
log_interface = default_log_interface;
return Status::OK();
case td_api::logStreamFile::ID: {
auto file_stream = td_api::move_object_as<td_api::logStreamFile>(stream);
auto max_log_file_size = file_stream->max_file_size_;
if (max_log_file_size <= 0) {
return Status::Error("Max log file size must be positive");
}
auto redirect_stderr = file_stream->redirect_stderr_;
TRY_STATUS(file_log.init(file_stream->path_, max_log_file_size, redirect_stderr));
std::atomic_thread_fence(std::memory_order_release); // better than nothing
log_interface = &ts_log;
return Status::OK();
}
case td_api::logStreamEmpty::ID:
log_interface = &null_log;
return Status::OK();
default:
UNREACHABLE();
return Status::OK();
}
}
Result<td_api::object_ptr<td_api::LogStream>> Logging::get_current_stream() {
std::lock_guard<std::mutex> lock(logging_mutex);
if (log_interface == default_log_interface) {
return td_api::make_object<td_api::logStreamDefault>();
}
if (log_interface == &null_log) {
return td_api::make_object<td_api::logStreamEmpty>();
}
if (log_interface == &ts_log) {
return td_api::make_object<td_api::logStreamFile>(file_log.get_path().str(), file_log.get_rotate_threshold(),
file_log.get_redirect_stderr());
}
return Status::Error("Log stream is unrecognized");
}
Status Logging::set_verbosity_level(int new_verbosity_level) {
std::lock_guard<std::mutex> lock(logging_mutex);
if (0 <= new_verbosity_level && new_verbosity_level <= VERBOSITY_NAME(NEVER)) {
SET_VERBOSITY_LEVEL(VERBOSITY_NAME(FATAL) + new_verbosity_level);
return Status::OK();
}
return Status::Error("Wrong new verbosity level specified");
}
int Logging::get_verbosity_level() {
std::lock_guard<std::mutex> lock(logging_mutex);
return GET_VERBOSITY_LEVEL();
}
vector<string> Logging::get_tags() {
return transform(log_tags, [](auto &tag) { return tag.first.str(); });
}
Status Logging::set_tag_verbosity_level(Slice tag, int new_verbosity_level) {
auto it = log_tags.find(tag);
if (it == log_tags.end()) {
return Status::Error("Log tag is not found");
}
std::lock_guard<std::mutex> lock(logging_mutex);
*it->second = clamp(new_verbosity_level, 1, VERBOSITY_NAME(NEVER));
return Status::OK();
}
Result<int> Logging::get_tag_verbosity_level(Slice tag) {
auto it = log_tags.find(tag);
if (it == log_tags.end()) {
return Status::Error("Log tag is not found");
}
std::lock_guard<std::mutex> lock(logging_mutex);
return *it->second;
}
void Logging::add_message(int log_verbosity_level, Slice message) {
int VERBOSITY_NAME(client) = clamp(log_verbosity_level, 0, VERBOSITY_NAME(NEVER));
VLOG(client) << message;
}
} // namespace td