repos/Spectre2/Spectre2.cpp

// Spectre 2
//
// Douglas Thrift
//
// $Id$

#include "Mounter.hpp"
#include "Unmounter.hpp"
#include "Matcher/Matcher.hpp"

#include <menes-api/exename.hpp>
#include <menes-app/simple.hpp>

#include <sys/types.h>
#include <signal.h>

int Main(const app::Options& options)
{
        ext::String config("spectre.xml"), pid("spectre.pid");
        bool fork(false);

        _foreach (const app::ArgumentList, arg, app::GetArguments())
        {
                Matcher matcher;

                if (*arg == matcher("^-config=(.*)$"))
                        config = matcher[1];
                else if (*arg == "-fork")
                        fork = true;
                else if (*arg == matcher("^-pid=(.*)$"))
                        pid = matcher[1];
                else if (*arg == "-D")
                        Spectre2::debug = true;
                else
                {
                        api::Cerr << "Usage: " << Spectre2::program << " [-config=config] [-fork] [-pid=pid] [-D]" << ios::NewLine;

                        return 1;
                }
        }

        if (fork && api::Posix::CheckError(::fork()))
                return 0;

        api::Cerr << "Here!" << ios::NewLine;

        Spectre2(config, pid);

        return 0;
}

extern "C"
{
        void reload(int signal, ::siginfo_t* info, void* uap);
        void stop(int signal, ::siginfo_t* info, void* uap);
}

Spectre2::Spectre2(const ext::String& config, const ext::String& pid) : pid(pid)
{
        {
                api::FileWriter out(pid);
                ios::FormatWriter fout(out);

                fout << ::getpid() << ios::NewLine;
        }

        Mounter mounter(config);
        Unmounter unmounter(config);

        daemons.InsertLast(dynamic_cast<Daemon*>(&mounter));
        daemons.InsertLast(dynamic_cast<Daemon*>(&unmounter));

        {
                struct ::sigaction action;

                action.sa_sigaction = reload;
                action.sa_flags = SA_SIGINFO;

                api::Posix::CheckError(::sigemptyset(&action.sa_mask));
                api::Posix::CheckError(::sigaction(SIGUSR1, &action, NULL));

                action.sa_sigaction = stop;

                api::Posix::CheckError(::sigaction(SIGTERM, &action, NULL));
        }

        _foreach (ext::Vector<Daemon*>, daemon, daemons) (*daemon)->start();
        _foreach (ext::Vector<Daemon*>, daemon, daemons) (*daemon)->wait();
}

Spectre2::~Spectre2()
{
        api::Posix::CheckError(::unlink(pid.NullTerminate()));
}

ext::String Spectre2::program(api::GetExecutablePath().GetName()), Spectre2::prefix(_Spectre2_prefix_), Spectre2::root(_Spectre2_root_);
bool Spectre2::debug(false);
ext::Vector<Daemon*> Spectre2::daemons;

extern "C"
{
        void reload(int signal, ::siginfo_t* info, void* uap)
        {
                _foreach (ext::Vector<Daemon*>, daemon, Spectre2::daemons) (*daemon)->reload();
        }

        void stop(int signal, ::siginfo_t* info, void* uap)
        {
                _foreach (ext::Vector<Daemon*>, daemon, Spectre2::daemons) (*daemon)->stop();
        }
}
Revision:	417
Committed:	2005-03-02T14:49:53-08:00 (20 years, 3 months ago) by douglas
File size:	2475 byte(s)
Log Message:	Yeah, this is probably easier and saner.
#	User	Rev	Content
1	douglas	402	// Spectre 2
2			//
3			// Douglas Thrift
4			//
5			// $Id$
6
7			#include "Mounter.hpp"
8			#include "Unmounter.hpp"
9			#include "Matcher/Matcher.hpp"
10
11			#include <menes-api/exename.hpp>
12	douglas	417	#include <menes-app/simple.hpp>
13	douglas	402
14			#include <sys/types.h>
15	douglas	405	#include <signal.h>
16	douglas	402
17	douglas	417	int Main(const app::Options& options)
18	douglas	402	{
19	douglas	417	ext::String config("spectre.xml"), pid("spectre.pid");
20			bool fork(false);
21
22			_foreach (const app::ArgumentList, arg, app::GetArguments())
23	douglas	402	{
24	douglas	417	Matcher matcher;
25	douglas	402
26	douglas	417	if (arg == matcher("^-config=(.)$"))
27			config = matcher[1];
28			else if (*arg == "-fork")
29			fork = true;
30			else if (arg == matcher("^-pid=(.)$"))
31			pid = matcher[1];
32			else if (*arg == "-D")
33			Spectre2::debug = true;
34			else
35	douglas	402	{
36	douglas	417	api::Cerr << "Usage: " << Spectre2::program << " [-config=config] [-fork] [-pid=pid] [-D]" << ios::NewLine;
37	douglas	402
38	douglas	417	return 1;
39	douglas	402	}
40	douglas	417	}
41	douglas	402
42	douglas	417	if (fork && api::Posix::CheckError(::fork()))
43	douglas	402	return 0;
44
45	douglas	417	api::Cerr << "Here!" << ios::NewLine;
46
47			Spectre2(config, pid);
48
49			return 0;
50			}
51
52	douglas	405	extern "C"
53			{
54			void reload(int signal, ::siginfo_t* info, void* uap);
55			void stop(int signal, ::siginfo_t* info, void* uap);
56			}
57
58	douglas	402	Spectre2::Spectre2(const ext::String& config, const ext::String& pid) : pid(pid)
59			{
60			{
61			api::FileWriter out(pid);
62			ios::FormatWriter fout(out);
63
64			fout << ::getpid() << ios::NewLine;
65			}
66
67			Mounter mounter(config);
68			Unmounter unmounter(config);
69	douglas	405
70	douglas	406	daemons.InsertLast(dynamic_cast<Daemon*>(&mounter));
71			daemons.InsertLast(dynamic_cast<Daemon*>(&unmounter));
72	douglas	405
73			{
74			struct ::sigaction action;
75
76			action.sa_sigaction = reload;
77			action.sa_flags = SA_SIGINFO;
78
79			api::Posix::CheckError(::sigemptyset(&action.sa_mask));
80	douglas	415	api::Posix::CheckError(::sigaction(SIGUSR1, &action, NULL));
81	douglas	405
82			action.sa_sigaction = stop;
83
84			api::Posix::CheckError(::sigaction(SIGTERM, &action, NULL));
85			}
86	douglas	406
87	douglas	417	_foreach (ext::Vector<Daemon>, daemon, daemons) (daemon)->start();
88			_foreach (ext::Vector<Daemon>, daemon, daemons) (daemon)->wait();
89	douglas	402	}
90
91			Spectre2::~Spectre2()
92			{
93			api::Posix::CheckError(::unlink(pid.NullTerminate()));
94			}
95
96	douglas	414	ext::String Spectre2::program(api::GetExecutablePath().GetName()), Spectre2::prefix(_Spectre2_prefix_), Spectre2::root(_Spectre2_root_);
97	douglas	402	bool Spectre2::debug(false);
98	douglas	405	ext::Vector<Daemon*> Spectre2::daemons;
99
100			extern "C"
101			{
102			void reload(int signal, ::siginfo_t* info, void* uap)
103			{
104	douglas	417	_foreach (ext::Vector<Daemon>, daemon, Spectre2::daemons) (daemon)->reload();
105	douglas	405	}
106
107			void stop(int signal, ::siginfo_t* info, void* uap)
108			{
109	douglas	417	_foreach (ext::Vector<Daemon>, daemon, Spectre2::daemons) (daemon)->stop();
110	douglas	405	}
111			}