libipc-old/pubsub/app/pubsubd.c

#include "../../core/communication.h"
#include "../../core/client.h"
#include "../../core/error.h"
#include "../lib/pubsubd.h"
#include <stdlib.h>

#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#include <signal.h>

// to quit them properly if a signal occurs
struct ipc_service srv;
struct channels chans;

void handle_signal (int signalnumber)
{
    // the application will shut down, and remove the service named pipe
    if (ipc_server_close (&srv) < 0) {
        handle_error("ipc_server_close < 0");
    }

    pubsubd_channels_del_all (&chans);

    fprintf (stderr, "received a signal %d\n", signalnumber);
    exit (EXIT_SUCCESS);
}

int
main(int argc, char **argv, char **env)
{
    memset (&srv, 0, sizeof (struct ipc_service));
    srv.index = 0;
    srv.version = 0;

    signal(SIGHUP, handle_signal);
    signal(SIGINT, handle_signal);
    signal(SIGQUIT, handle_signal);

    memset (&chans, 0, sizeof (struct channels));
    pubsubd_channels_init (&chans);

    if (ipc_server_init (argc, argv, env, &srv, PUBSUBD_SERVICE_NAME) < 0) {
        handle_error("ipc_server_init < 0");
        return EXIT_FAILURE;
    }
    printf ("Listening on %s.\n", srv.spath);

    printf("MAIN: server created\n" );

    // the service will loop until the end of time, a specific message, a signal
    pubsubd_main_loop (&srv, &chans);

    // the application will shut down, and remove the service named pipe
    if (ipc_server_close (&srv) < 0) {
        handle_error("ipc_server_close < 0");
    }

    return EXIT_SUCCESS;
}