I2P: End-to-End encrypted and anonymous Internet https://i2pd.website/
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#include "Daemon.h"
#ifndef _WIN32
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
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//#include <boost/filesystem.hpp>
#include "util.h"
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:
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Daemon.running = 0; // Exit loop
break;
}
}
namespace i2p
{
namespace util
{
bool DaemonLinux::start()
{
if (isDaemon == 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
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pidfile = i2p::util::filesystem::GetDataDir().string();
pidfile.append("/i2pd.pid");
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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);
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return Daemon_Singleton::start();
}
bool DaemonLinux::stop()
{
Daemon_Singleton::stop();
close(pidFilehandle);
unlink(pidfile.c_str());
return true;
}
}
}
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#endif