// Copyright (c) 2014-2016, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "data_logger.hpp"
#include <stdexcept>
#include <boost/chrono.hpp>
#include <boost/filesystem.hpp>
#include <boost/thread.hpp>
#include <chrono>
#include "../../contrib/otshell_utils/utils.hpp"
namespace epee
{
namespace net_utils
{
data_logger &data_logger::get_instance() {
boost::call_once(m_singleton,
[] {
_info_c("dbg/data","Creating singleton of data_logger");
if (m_state != data_logger_state::state_before_init) { _erro_c("dbg/data","Internal error in singleton"); throw std::runtime_error("data_logger singleton"); }
m_state = data_logger_state::state_during_init;
m_obj.reset(new data_logger());
m_state = data_logger_state::state_ready_to_use;
}
);
if (m_state != data_logger_state::state_ready_to_use) {
_erro ("trying to use not working data_logger");
throw std::runtime_error("data_logger ctor state");
}
return * m_obj;
}
data_logger::data_logger() {
_note_c("dbg/data","Starting data logger (for graphs data)");
if (m_state != data_logger_state::state_during_init) { _erro_c("dbg/data","Singleton ctor state"); throw std::runtime_error("data_logger ctor state"); }
boost::lock_guard<boost::mutex> lock(mMutex); // lock
// prepare all the files for given data channels:
mFilesMap["peers"] = data_logger::fileData("log/dr-monero/peers.data");
mFilesMap["download"] = data_logger::fileData("log/dr-monero/net/in-all.data");
mFilesMap["upload"] = data_logger::fileData("log/dr-monero/net/out-all.data");
mFilesMap["request"] = data_logger::fileData("log/dr-monero/net/req-all.data");
mFilesMap["sleep_down"] = data_logger::fileData("log/dr-monero/down_sleep_log.data");
mFilesMap["sleep_up"] = data_logger::fileData("log/dr-monero/up_sleep_log.data");
mFilesMap["calc_time"] = data_logger::fileData("log/dr-monero/get_objects_calc_time.data");
mFilesMap["blockchain_processing_time"] = data_logger::fileData("log/dr-monero/blockchain_log.data");
mFilesMap["block_processing"] = data_logger::fileData("log/dr-monero/block_proc.data");
mFilesMap["peers_limit"] = data_logger::fileData("log/dr-monero/peers_limit.info");
mFilesMap["download_limit"] = data_logger::fileData("log/dr-monero/limit_down.info");
mFilesMap["upload_limit"] = data_logger::fileData("log/dr-monero/limit_up.info");
mFilesMap["peers_limit"].mLimitFile = true;
mFilesMap["download_limit"].mLimitFile = true;
mFilesMap["upload_limit"].mLimitFile = true;
// do NOT modify mFilesMap below this point, since there is no locking for this used (yet)
_info_c("dbg/data","Creating thread for data logger"); // create timer thread
m_thread_maybe_running=true;
std::shared_ptr<boost::thread> logger_thread(new boost::thread([&]() {
_info_c("dbg/data","Inside thread for data logger");
while (m_state == data_logger_state::state_during_init) { // wait for creation to be done (in other thread, in singleton) before actually running
boost::this_thread::sleep_for(boost::chrono::seconds(1));
}
_info_c("dbg/data","Inside thread for data logger - going into main loop");
while (m_state == data_logger_state::state_ready_to_use) { // run as long as we are not closing the single object
boost::this_thread::sleep_for(boost::chrono::seconds(1));
saveToFile(); // save all the pending data
}
_info_c("dbg/data","Inside thread for data logger - done the main loop");
m_thread_maybe_running=false;
}));
logger_thread->detach();
_info_c("dbg/data","Data logger constructed");
}
data_logger::~data_logger() noexcept(false) {
_note_c("dbg/data","Destructor of the data logger");
{
boost::lock_guard<boost::mutex> lock(mMutex);
m_state = data_logger_state::state_dying;
}
_info_c("dbg/data","State was set to dying");
while(m_thread_maybe_running) { // wait for the thread to exit
boost::this_thread::sleep_for(boost::chrono::seconds(1));
_info_c("dbg/data","Waiting for background thread to exit");
}
_info_c("dbg/data","Thread exited");
}
void data_logger::kill_instance() {
m_state = data_logger_state::state_dying;
m_obj.reset();
}
void data_logger::add_data(std::string filename, unsigned int data) {
boost::lock_guard<boost::mutex> lock(mMutex);
if (m_state != data_logger_state::state_ready_to_use) { _info_c("dbg/data","Data logger is not ready, returning."); return; }
if (mFilesMap.find(filename) == mFilesMap.end()) { // no such file/counter
_erro_c("dbg/data","Trying to use not opened data file filename="<<filename);
_erro_c("dbg/data","Disabling saving of graphs due to error");
m_save_graph=false; // <--- disabling saving graphs
return;
}
if (mFilesMap[filename].mLimitFile) { // this holds a number (that is not additive) - e.g. the limit setting
mFilesMap[filename].mDataToSave = data;
} else {
mFilesMap[filename].mDataToSave += data; // this holds a number that should be sum of all accumulated samples
}
}
bool data_logger::is_dying() {
if (m_state == data_logger_state::state_dying) {
return true;
}
else {
return false;
}
}
void data_logger::saveToFile() {
_dbg2_c("dbg/data","saving to files");
boost::lock_guard<boost::mutex> lock(mMutex);
if (m_state != data_logger_state::state_ready_to_use) { _info_c("dbg/data","Data logger is not ready, returning."); return; }
nOT::nUtils::cFilesystemUtils::CreateDirTree("log/dr-monero/net/");
for (auto &element : mFilesMap)
{
element.second.save();
if (!element.second.mLimitFile) element.second.mDataToSave = 0;
}
}
// the inner class:
double data_logger::fileData::get_current_time() {
#if defined(__APPLE__)
auto point = std::chrono::system_clock::now();
#else
auto point = std::chrono::steady_clock::now();
#endif
auto time_from_epoh = point.time_since_epoch();
auto ms = std::chrono::duration_cast< std::chrono::milliseconds >( time_from_epoh ).count();
double ms_f = ms;
return ms_f / 1000.;
}
data_logger::fileData::fileData(std::string pFile) {
_dbg3_c("dbg/data","opening data file named pFile="<<pFile<<" for this="<<this);
mFile = std::make_shared<std::ofstream> (pFile);
_dbg1_c("dbg/data","opened data file named pFile="<<pFile<<" in mFile="<<mFile<<" for this="<<this);
mPath = pFile;
}
void data_logger::fileData::save() {
if (!data_logger::m_save_graph) return; // <--- disabled
_dbg2_c("dbg/data","saving to the file now, mFile="<<mFile);
mFile->open(mPath, std::ios::app);
*mFile << static_cast<int>(get_current_time()) << " " << mDataToSave << std::endl;
mFile->close();
}
data_logger_state data_logger::m_state(data_logger_state::state_before_init); ///< (static) state of the singleton object
std::atomic<bool> data_logger::m_save_graph(false); // (static)
std::atomic<bool> data_logger::m_thread_maybe_running(false); // (static)
boost::once_flag data_logger::m_singleton; // (static)
std::unique_ptr<data_logger> data_logger::m_obj; // (static)
} // namespace
} // namespace
