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// Spectre 2
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//
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// Douglas Thrift
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//
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// $Id$
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#include "Mounter.hpp"
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#include "Unmounter.hpp"
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#include "Matcher/Matcher.hpp"
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#include <menes-api/exename.hpp>
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#include <menes-app/simple.hpp>
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#include <sys/types.h>
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#include <signal.h>
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int Main(const app::Options& options)
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{
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api::Path config(Spectre2::prefix + "/etc/spectre.xml");
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bool fork(false);
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_foreach (const app::ArgumentList, arg, app::GetArguments())
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{
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Matcher matcher;
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if (*arg == matcher("^-config=(.*)$"))
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config = matcher[1];
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else if (*arg == "-fork")
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fork = true;
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else if (*arg == "-D")
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Spectre2::debug = true;
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else
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{
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api::Cerr << "Usage: " << Spectre2::program << " [-config=config] [-fork] [-D]" << ios::NewLine;
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return 1;
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}
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}
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if (!config.Exists())
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{
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api::Cerr << Spectre2::program << ": configuration file " << config.GetPath() << " does not exist." << ios::NewLine;
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return 2;
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}
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if (fork && api::Posix::CheckError(::fork()))
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return 0;
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Spectre2 spectre(config);
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return 0;
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}
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extern "C"
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{
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void reload(int signal, ::siginfo_t* info, void* uap);
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void stop(int signal, ::siginfo_t* info, void* uap);
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}
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Spectre2::Spectre2(const api::Path& config)
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{
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{
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_H<xml::Document> document(xml::Parse(config.GetPath()));
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pid = *document/"spectre"/"pid";
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}
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{
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api::FileWriter out(pid);
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ios::FormatWriter fout(out);
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fout << ::getpid() << ios::NewLine;
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}
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Mounter mounter(config);
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Unmounter unmounter(config);
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daemons.InsertLast(dynamic_cast<Daemon*>(&mounter));
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daemons.InsertLast(dynamic_cast<Daemon*>(&unmounter));
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{
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struct ::sigaction action;
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action.sa_sigaction = reload;
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action.sa_flags = SA_SIGINFO;
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api::Posix::CheckError(::sigemptyset(&action.sa_mask));
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api::Posix::CheckError(::sigaction(SIGUSR1, &action, NULL));
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action.sa_sigaction = stop;
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api::Posix::CheckError(::sigaction(SIGTERM, &action, NULL));
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}
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_foreach (ext::Vector<Daemon*>, daemon, daemons) (*daemon)->start();
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_foreach (ext::Vector<Daemon*>, daemon, daemons) (*daemon)->wait();
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}
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Spectre2::~Spectre2()
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{
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api::Posix::CheckError(::unlink(pid.NullTerminate()));
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}
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ext::String Spectre2::program(api::GetExecutablePath().GetName()), Spectre2::prefix(_Spectre2_prefix_), Spectre2::root(_Spectre2_root_);
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bool Spectre2::debug(false);
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ext::Vector<Daemon*> Spectre2::daemons;
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extern "C"
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{
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void reload(int signal, ::siginfo_t* info, void* uap)
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{
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_foreach (ext::Vector<Daemon*>, daemon, Spectre2::daemons) (*daemon)->reload();
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}
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void stop(int signal, ::siginfo_t* info, void* uap)
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{
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_foreach (ext::Vector<Daemon*>, daemon, Spectre2::daemons) (*daemon)->stop();
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}
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}
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