client/main.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2012  Intel Corporation. All rights reserved.
   6  *
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License version 2 as
  10  *  published by the Free Software Foundation.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  20  *
  21  */
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <unistd.h>
  26 #include <getopt.h>
  27 #include <string.h>
  28 #include <errno.h>
  29 #include <readline/readline.h>
  30
  31 #include <glib.h>
  32
  33 #include <dbus/dbus.h>
  34 #include <gdbus.h>
  35
  36 #include "client/data_manager.h"
  37 #include "client/services.h"
  38 #include "client/technology.h"
  39 #include "client/interactive.h"
  40 #include "client/monitor.h"
  41
  42 static GMainLoop *main_loop;
  43
  44 static gboolean timeout_wait(gpointer data)
  45 {
  46         static int i;
  47         i++;
  48         /* Set to whatever number of retries is wanted/needed */
  49         if (i == 1) {
  50                 g_main_loop_quit(data);
  51                 return FALSE;
  52         }
  53         return TRUE;
  54 }
  55
  56 static void rl_handler(char *input)
  57 {
  58
  59         if (input == NULL)
  60                 exit(EXIT_FAILURE);
  61         else
  62                 printf("Use ctrl-d to exit\n");
  63 }
  64
  65 static gboolean readmonitor(GIOChannel *channel, GIOCondition condition,
  66                                                 gpointer user_data){
  67         rl_callback_read_char();
  68         return TRUE;
  69 }
  70
  71 int main(int argc, char *argv[])
  72 {
  73         DBusConnection *connection;
  74         DBusError err;
  75         int events, error;
  76         GIOChannel *gchan;
  77         main_loop = g_main_loop_new(NULL, FALSE);
  78
  79         dbus_error_init(&err);
  80
  81         connection = g_dbus_setup_bus(DBUS_BUS_SYSTEM, NULL, &err);
  82
  83         if (dbus_error_is_set(&err)) {
  84                 fprintf(stderr, "Connection Error: %s\n", err.message);
  85                 dbus_error_free(&err);
  86         }
  87
  88         if (connection == NULL) {
  89                 fprintf(stderr, "Could not connect to system bus...exiting\n");
  90                 exit(EXIT_FAILURE);
  91         }
  92
  93         if (argc < 2) {
  94                 show_help();
  95                 exit(EXIT_SUCCESS);
  96         }
  97
  98         if (strcmp(argv[1], "interactive") == 0) {
  99                 if (argc != 2) {
 100                         fprintf(stderr, "Interactive cannot accept an argument,"
 101                                                                 " see help\n");
 102                         return -EINVAL;
 103                 }
 104                 show_interactive(connection, main_loop);
 105         }
 106
 107         error = commands_no_options(connection, argv + 1, argc - 1);
 108         if (error == -1) {
 109                 error = commands_options(connection, argv + 1, argc - 1);
 110                 if (strcmp(argv[1], "monitor") != 0)
 111                         return error;
 112         } else {
 113                 return error;
 114         }
 115
 116         if (error == -1) {
 117                 fprintf(stderr, "%s is not a valid command, check help.\n",
 118                                                         argv[1]);
 119                 return -EINVAL;
 120         }
 121         gchan = g_io_channel_unix_new(fileno(stdin));
 122         events = G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL;
 123         g_io_add_watch(gchan, events, readmonitor, NULL);
 124         rl_callback_handler_install("", rl_handler);
 125
 126         if (strcmp(argv[1], "monitor") != 0)
 127                 g_timeout_add_full(G_PRIORITY_DEFAULT, 100, timeout_wait,
 128                                                                main_loop, NULL);
 129         g_main_loop_run(main_loop);
 130         rl_callback_handler_remove();
 131         g_io_channel_unref(gchan);
 132         if (main_loop != NULL)
 133                 g_main_loop_unref(main_loop);
 134         return 0;
 135 }