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NTP sync in separate thread

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orignal 2018-11-16 12:49:04 -05:00
parent d7081c5f23
commit 8a549b83a2
3 changed files with 110 additions and 11 deletions
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76
libi2pd/Timestamp.cpp
View file

@ -1,7 +1,5 @@
#include <inttypes.h>
#include <string.h>
#include <string>
#include <vector>
#include <chrono>
#include <future>
#include <boost/asio.hpp>
@ -92,15 +90,77 @@ namespace util
LogPrint (eLogError, "Timestamp: Couldn't resove address ", address);
}
void RequestNTPTimeSync ()
NTPTimeSync::NTPTimeSync (): m_IsRunning (false), m_Timer (m_Service)
{
i2p::config::GetOption("nettime.ntpsyncinterval", m_SyncInterval);
std::string ntpservers; i2p::config::GetOption("nettime.ntpservers", ntpservers);
if (ntpservers.length () > 0)
boost::split (m_NTPServersList, ntpservers, boost::is_any_of(","), boost::token_compress_on);
}
NTPTimeSync::~NTPTimeSync ()
{
Stop ();
}
void NTPTimeSync::Start()
{
if (m_NTPServersList.size () > 0)
{
std::vector<std::string> ntpList;
boost::split (ntpList, ntpservers, boost::is_any_of(","), boost::token_compress_on);
if (ntpList.size () > 0)
std::async (std::launch::async, SyncTimeWithNTP, ntpList[rand () % ntpList.size ()]);
m_IsRunning = true;
LogPrint(eLogInfo, "Timestamp: NTP time sync starting");
m_Service.post (std::bind (&NTPTimeSync::Sync, this));
m_Thread.reset (new std::thread (std::bind (&NTPTimeSync::Run, this)));
}
else
LogPrint (eLogWarning, "Timestamp: No NTP server found");
}
void NTPTimeSync::Stop ()
{
if (m_IsRunning)
{
LogPrint(eLogInfo, "Timestamp: NTP time sync stopping");
m_IsRunning = false;
m_Timer.cancel ();
m_Service.stop ();
if (m_Thread)
{
m_Thread->join ();
m_Thread.reset (nullptr);
}
}
}
void NTPTimeSync::Run ()
{
while (m_IsRunning)
{
try
{
m_Service.run ();
}
catch (std::exception& ex)
{
LogPrint (eLogError, "Timestamp: NTP time sync exception: ", ex.what ());
}
}
}
void NTPTimeSync::Sync ()
{
if (m_NTPServersList.size () > 0)
SyncTimeWithNTP (m_NTPServersList[rand () % m_NTPServersList.size ()]);
else
m_IsRunning = false;
if (m_IsRunning)
{
m_Timer.expires_from_now (boost::posix_time::hours (m_SyncInterval));
m_Timer.async_wait ([this](const boost::system::error_code& ecode)
{
if (ecode != boost::asio::error::operation_aborted)
Sync ();
});
}
}

29
libi2pd/Timestamp.h
View file

@ -2,6 +2,10 @@
#define TIMESTAMP_H__
#include <inttypes.h>
#include <thread>
#include <vector>
#include <string>
#include <boost/asio.hpp>
namespace i2p
{
@ -11,7 +15,30 @@ namespace util
uint32_t GetHoursSinceEpoch ();
uint64_t GetSecondsSinceEpoch ();
void RequestNTPTimeSync ();
class NTPTimeSync
{
public:
NTPTimeSync ();
~NTPTimeSync ();
void Start ();
void Stop ();
private:
void Run ();
void Sync ();
private:
bool m_IsRunning;
std::unique_ptr<std::thread> m_Thread;
boost::asio::io_service m_Service;
boost::asio::deadline_timer m_Timer;
int m_SyncInterval;
std::vector<std::string> m_NTPServersList;
};
}
}