i2pd/i2p.cpp
orignal 70cab34026 Merge pull request #35 from meeh420/master
Rewrite of signal handler, pid file
2014-02-05 07:51:02 -05:00

174 lines
3.8 KiB
C++

#ifdef _WIN32
#define _CRT_SECURE_NO_WARNINGS // to use freopen
#endif
#include <iostream>
#include <thread>
#include <cryptopp/integer.h>
#include <boost/filesystem.hpp>
#ifndef _WIN32
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
#endif
#include "Log.h"
#include "base64.h"
#include "Transports.h"
#include "NTCPSession.h"
#include "RouterInfo.h"
#include "RouterContext.h"
#include "Tunnel.h"
#include "NetDb.h"
#include "HTTPServer.h"
#include "util.h"
// Global
int running = 1;
#ifndef _WIN32
void handle_signal(int sig)
{
switch (sig)
{
case SIGHUP:
if (i2p::util::config::GetArg("daemon", 0) == 1)
{
static bool first=true;
if (first)
{
first=false;
return;
}
}
LogPrint("Reloading config.");
i2p::util::filesystem::ReadConfigFile(i2p::util::config::mapArgs, i2p::util::config::mapMultiArgs);
break;
case SIGABRT:
case SIGTERM:
case SIGINT:
running = 0; // Exit loop
break;
}
}
#endif
int main( int argc, char* argv[] )
{
i2p::util::config::OptionParser(argc,argv);
#ifdef _WIN32
setlocale(LC_CTYPE, "");
SetConsoleCP(1251);
SetConsoleOutputCP(1251);
setlocale(LC_ALL, "Russian");
#endif
LogPrint("\n\n\n\ni2pd starting\n");
LogPrint("data directory: ", i2p::util::filesystem::GetDataDir().string());
i2p::util::filesystem::ReadConfigFile(i2p::util::config::mapArgs, i2p::util::config::mapMultiArgs);
#ifndef _WIN32
if (i2p::util::config::GetArg("-daemon", 0) == 1)
{
pid_t pid;
pid = fork();
if (pid > 0)
{
g_Log.Stop();
return 0;
}
if (pid < 0)
{
return -1;
}
umask(0);
int sid = setsid();
if (sid < 0)
{
LogPrint("Error, could not create process group.");
return -1;
}
chdir(i2p::util::filesystem::GetDataDir().string().c_str());
}
// Pidfile
std::string pidfile = i2p::util::filesystem::GetDataDir().string();
pidfile.append("/i2pd.pid");
int pidFilehandle = open(pidfile.c_str(), O_RDWR|O_CREAT, 0600);
if (pidFilehandle == -1 )
{
LogPrint("Error, could not create pid file (", pidfile, ")\nIs an instance already running?");
return -1;
}
if (lockf(pidFilehandle,F_TLOCK,0) == -1)
{
LogPrint("Error, could not lock pid file (", pidfile, ")\nIs an instance already running?");
return -1;
}
char pid[10];
sprintf(pid,"%d\n",getpid());
write(pidFilehandle, pid, strlen(pid));
// Signal handler
struct sigaction sa;
sa.sa_handler = handle_signal;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART;
sigaction(SIGHUP,&sa,0);
sigaction(SIGABRT,&sa,0);
sigaction(SIGTERM,&sa,0);
sigaction(SIGINT,&sa,0);
#endif
if (i2p::util::config::GetArg("-log", 0) == 1)
{
std::string logfile = i2p::util::filesystem::GetDataDir().string();
#ifndef _WIN32
logfile.append("/debug.log");
#else
logfile.append("\\debug.log");
#endif
LogPrint("Logging to file enabled.");
freopen(logfile.c_str(),"a",stdout);
}
//TODO: This is an ugly workaround. fix it.
//TODO: Autodetect public IP.
i2p::context.OverrideNTCPAddress(i2p::util::config::GetCharArg("-host", "127.0.0.1"),
i2p::util::config::GetArg("-port", 17070));
i2p::util::HTTPServer httpServer (i2p::util::config::GetArg("-httpport", 7070));
httpServer.Start ();
i2p::data::netdb.Start ();
i2p::transports.Start ();
i2p::tunnel::tunnels.Start ();
while (running)
{
//TODO Meeh: Find something better to do here.
std::this_thread::sleep_for (std::chrono::seconds(1));
}
LogPrint("Shutdown started.");
i2p::tunnel::tunnels.Stop ();
i2p::transports.Stop ();
i2p::data::netdb.Stop ();
httpServer.Stop ();
if (i2p::util::config::GetArg("-log", 0) == 1)
{
fclose (stdout);
}
#ifndef _WIN32
close(pidFilehandle);
unlink(pidfile.c_str());
#endif
return 0;
}