mainloop.c

/******************************************************************************
** This file is part of profile-qt
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are met:
**
** Redistributions of source code must retain the above copyright notice,
** this list of conditions and the following disclaimer. Redistributions in
** binary form must reproduce the above copyright notice, this list of
** conditions and the following disclaimer in the documentation  and/or
** other materials provided with the distribution.
**
** Neither the name of Nokia Corporation nor the names of its contributors
** may be used to endorse or promote products derived from this software 
** without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
** THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
** PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
** EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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******************************************************************************/

#include "profiled_config.h"

#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <glib.h>

#include "logging.h"
#include "sighnd.h"
#include "server.h"
#include "database.h"
#include "confmon.h"
#include "mainloop.h"

/* ========================================================================= *
 * Module Data
 * ========================================================================= */

static GMainLoop  *mainloop_addon     = 0;

/* ========================================================================= *
 * Module Functions
 * ========================================================================= */

/* ------------------------------------------------------------------------- *
 * mainloop_stop
 * ------------------------------------------------------------------------- */

void
mainloop_stop(void)
{
  if( mainloop_addon == 0 )
  {
    log_err("no main loop to stop, terminating immediately\n");
    exit(1);
  }

  g_main_loop_quit(mainloop_addon);
}

/* ------------------------------------------------------------------------- *
 * mainloop_run
 * ------------------------------------------------------------------------- */

int
mainloop_run(int argc, char* argv[])
{
  (void)argc; (void)argv;
  int exit_code = EXIT_FAILURE;

  log_debug("STARTUP");

  /* - - - - - - - - - - - - - - - - - - - *
   * make writing to closed sockets
   * return -1 instead of raising a
   * SIGPIPE signal
   * - - - - - - - - - - - - - - - - - - - */

  signal(SIGPIPE, SIG_IGN);

  /* - - - - - - - - - - - - - - - - - - - *
   * install signal handlers
   * - - - - - - - - - - - - - - - - - - - */

  if( sighnd_setup() == -1 )
  {
    goto cleanup;
  }

  /* - - - - - - - - - - - - - - - - - - - *
   * initialize profile database
   * - - - - - - - - - - - - - - - - - - - */

  if( database_init() == -1 )
  {
    goto cleanup;
  }

  /* - - - - - - - - - - - - - - - - - - - *
   * start profile dbus server
   * - - - - - - - - - - - - - - - - - - - */

  if( server_init() == -1 )
  {
    goto cleanup;
  }

  /* - - - - - - - - - - - - - - - - - - - *
   * start monitoring config directory
   * - - - - - - - - - - - - - - - - - - - */

  if( confmon_init() == -1 )
  {
    goto cleanup;
  }

  /* - - - - - - - - - - - - - - - - - - - *
   * enter mainloop
   * - - - - - - - - - - - - - - - - - - - */

  mainloop_addon = g_main_loop_new(NULL, FALSE);

  log_debug("ENTER MAIN LOOP");
  g_main_loop_run(mainloop_addon);
  log_debug("LEAVE MAIN LOOP");

  exit_code = EXIT_SUCCESS;

  /* - - - - - - - - - - - - - - - - - - - *
   * cleanup & exit
   * - - - - - - - - - - - - - - - - - - - */

  cleanup:

  log_debug("CLEANUP");

  if( mainloop_addon != 0 )
  {
    g_main_loop_unref(mainloop_addon);
    mainloop_addon = 0;
  }

  confmon_quit();

  server_quit();

  database_quit();

  log_debug("EXIT %d", exit_code);

  return exit_code;
}