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/* Services -- main source file.
*
* (C) 2003-2012 Anope Team
* Contact us at team@anope.org
*
* Please read COPYING and README for further details.
*
* Based on the original code of Epona by Lara.
* Based on the original code of Services by Andy Church.
*
*/
#include "services.h"
#include "timers.h"
#include "config.h"
#include "bots.h"
#include "signals.h"
#include "socketengine.h"
#include "uplink.h"
#ifndef _WIN32
#include <limits.h>
#else
#include <process.h>
#endif
/* Command-line options: */
int Anope::Debug = 0;
bool Anope::ReadOnly = false, Anope::NoFork = false, Anope::NoThird = false, Anope::NoExpire = false, Anope::ProtocolDebug = false;
Anope::string Anope::ServicesDir;
Anope::string Anope::ServicesBin;
int Anope::ReturnValue = 0;
bool Anope::Quitting = false;
bool Anope::Restarting = false;
Anope::string Anope::QuitReason;
static Anope::string BinaryDir; /* Full path to services bin directory */
time_t Anope::StartTime = time(NULL);
time_t Anope::CurTime = time(NULL);
int Anope::CurrentUplink = -1;
class UpdateTimer : public Timer
{
public:
UpdateTimer(time_t timeout) : Timer(timeout, Anope::CurTime, true) { }
void Tick(time_t)
{
Anope::SaveDatabases();
}
};
void Anope::SaveDatabases()
{
if (Anope::ReadOnly)
return;
EventReturn MOD_RESULT;
FOREACH_RESULT(I_OnSaveDatabase, OnSaveDatabase());
Log(LOG_DEBUG) << "Saving databases";
}
std::vector<Signal *> Signal::SignalHandlers;
void Signal::SignalHandler(int signal)
{
for (unsigned i = 0, j = SignalHandlers.size(); i < j; ++i)
if (SignalHandlers[i]->signal == signal)
SignalHandlers[i]->Notify();
}
Signal::Signal(int s) : Pipe(), signal(s)
{
memset(&this->old, 0, sizeof(this->old));
this->action.sa_flags = 0;
sigemptyset(&this->action.sa_mask);
this->action.sa_handler = SignalHandler;
if (sigaction(s, &this->action, &this->old) == -1)
throw CoreException("Unable to install signal " + stringify(s) + ": " + Anope::LastError());
SignalHandlers.push_back(this);
}
Signal::~Signal()
{
std::vector<Signal *>::iterator it = std::find(SignalHandlers.begin(), SignalHandlers.end(), this);
if (it != SignalHandlers.end())
SignalHandlers.erase(it);
sigaction(this->signal, &this->old, NULL);
}
/*************************************************************************/
/** The following comes from InspIRCd to get the full path of the Anope executable
*/
static Anope::string GetFullProgDir(const Anope::string &argv0)
{
char buffer[PATH_MAX];
#ifdef _WIN32
/* Windows has specific API calls to get the EXE path that never fail.
* For once, Windows has something of use, compared to the POSIX code
* for this, this is positively neato.
*/
if (GetModuleFileName(NULL, buffer, PATH_MAX))
{
Anope::string fullpath = buffer;
Anope::string::size_type n = fullpath.rfind("\\");
Anope::ServicesBin = fullpath.substr(n + 1, fullpath.length());
return fullpath.substr(0, n);
}
#else
// Get the current working directory
if (getcwd(buffer, PATH_MAX))
{
Anope::string remainder = argv0;
Anope::ServicesBin = remainder;
Anope::string::size_type n = Anope::ServicesBin.rfind("/");
Anope::string fullpath;
if (Anope::ServicesBin[0] == '/')
fullpath = Anope::ServicesBin.substr(0, n);
else
fullpath = Anope::string(buffer) + "/" + Anope::ServicesBin.substr(0, n);
Anope::ServicesBin = Anope::ServicesBin.substr(n + 1, remainder.length());
return fullpath;
}
#endif
return "/";
}
/*************************************************************************/
/* Main routine. (What does it look like? :-) ) */
int main(int ac, char **av, char **envp)
{
BinaryDir = GetFullProgDir(av[0]);
if (BinaryDir[BinaryDir.length() - 1] == '.')
BinaryDir = BinaryDir.substr(0, BinaryDir.length() - 2);
#ifdef _WIN32
Anope::string::size_type n = BinaryDir.rfind('\\');
#else
Anope::string::size_type n = BinaryDir.rfind('/');
#endif
Anope::ServicesDir = BinaryDir.substr(0, n);
/* Clean out the module runtime directory prior to running, just in case files were left behind during a previous run */
ModuleManager::CleanupRuntimeDirectory();
#ifdef _WIN32
OnStartup();
#endif
try
{
/* General initialization first */
Anope::Init(ac, av);
}
catch (const CoreException &ex)
{
Log() << ex.GetReason();
return -1;
}
try
{
Uplink::Connect();
}
catch (const SocketException &ex)
{
Log(LOG_TERMINAL) << "Unable to connect to uplink #" << Anope::CurrentUplink << " (" << Config->Uplinks[Anope::CurrentUplink]->host << ":" << Config->Uplinks[Anope::CurrentUplink]->port << "): " << ex.GetReason();
}
/* Set up timers */
time_t last_check = Anope::CurTime;
UpdateTimer updateTimer(Config->UpdateTimeout);
/*** Main loop. ***/
while (!Anope::Quitting)
{
Log(LOG_DEBUG_2) << "Top of main loop";
/* Process timers */
if (Anope::CurTime - last_check >= Config->TimeoutCheck)
{
TimerManager::TickTimers(Anope::CurTime);
last_check = Anope::CurTime;
}
/* Process the socket engine */
SocketEngine::Process();
}
if (Anope::Restarting)
{
FOREACH_MOD(I_OnRestart, OnRestart());
}
else
{
FOREACH_MOD(I_OnShutdown, OnShutdown());
}
if (Anope::QuitReason.empty())
Anope::QuitReason = "Terminating, reason unknown";
Log() << Anope::QuitReason;
delete UplinkSock;
ModuleManager::UnloadAll();
SocketEngine::Shutdown();
for (Module *m; (m = ModuleManager::FindFirstOf(PROTOCOL)) != NULL;)
ModuleManager::UnloadModule(m, NULL);
ModuleManager::CleanupRuntimeDirectory();
#ifdef _WIN32
OnShutdown();
#endif
if (Anope::Restarting)
{
chdir(BinaryDir.c_str());
Anope::string sbin = "./" + Anope::ServicesBin;
av[0] = const_cast<char *>(sbin.c_str());
execve(Anope::ServicesBin.c_str(), av, envp);
Log() << "Restart failed";
Anope::ReturnValue = -1;
}
return Anope::ReturnValue;
}
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