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 #ifdef HAVE_CONFIG_H
  24 #include <config.h>
  25 #endif
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <unistd.h>
  30 #include <getopt.h>
  31 #include <string.h>
  32 #include <errno.h>
  33 #include <readline/readline.h>
  34
  35 #include <glib.h>
  36
  37 #include <dbus/dbus.h>
  38 #include <gdbus.h>
  39
  40 #include "client/data_manager.h"
  41 #include "client/services.h"
  42 #include "client/technology.h"
  43 #include "client/interactive.h"
  44 #include "client/monitor.h"
  45
  46 static GMainLoop *main_loop;
  47
  48 static gboolean timeout_wait(gpointer data)
  49 {
  50         static int i;
  51         i++;
  52         /* Set to whatever number of retries is wanted/needed */
  53         if (i == 1) {
  54                 g_main_loop_quit(data);
  55                 return FALSE;
  56         }
  57         return TRUE;
  58 }
  59
  60 static void rl_handler(char *input)
  61 {
  62
  63         if (input == NULL)
  64                 exit(EXIT_FAILURE);
  65         else
  66                 printf("Use ctrl-d to exit\n");
  67 }
  68
  69 static gboolean readmonitor(GIOChannel *channel, GIOCondition condition,
  70                                                 gpointer user_data){
  71         rl_callback_read_char();
  72         return TRUE;
  73 }
  74
  75 int main(int argc, char *argv[])
  76 {
  77         DBusConnection *connection;
  78         DBusError err;
  79         int events, error;
  80         GIOChannel *gchan;
  81         main_loop = g_main_loop_new(NULL, FALSE);
  82
  83         dbus_error_init(&err);
  84
  85         connection = g_dbus_setup_bus(DBUS_BUS_SYSTEM, NULL, &err);
  86
  87         if (dbus_error_is_set(&err)) {
  88                 fprintf(stderr, "Connection Error: %s\n", err.message);
  89                 dbus_error_free(&err);
  90         }
  91
  92         if (connection == NULL) {
  93                 fprintf(stderr, "Could not connect to system bus...exiting\n");
  94                 exit(EXIT_FAILURE);
  95         }
  96
  97         if (argc < 2)
  98                 show_interactive(connection, main_loop);
  99
 100         error = commands_no_options(connection, argv + 1, argc - 1);
 101         if (error == -1) {
 102                 error = commands_options(connection, argv + 1, argc - 1);
 103                 if (strcmp(argv[1], "monitor") != 0)
 104                         return error;
 105         } else {
 106                 return error;
 107         }
 108
 109         if (error == -1) {
 110                 fprintf(stderr, "%s is not a valid command, check help.\n",
 111                                                         argv[1]);
 112                 return -EINVAL;
 113         }
 114         gchan = g_io_channel_unix_new(fileno(stdin));
 115         events = G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL;
 116         g_io_add_watch(gchan, events, readmonitor, NULL);
 117         rl_callback_handler_install("", rl_handler);
 118
 119         if (strcmp(argv[1], "monitor") != 0)
 120                 g_timeout_add_full(G_PRIORITY_DEFAULT, 100, timeout_wait,
 121                                                                main_loop, NULL);
 122         g_main_loop_run(main_loop);
 123         rl_callback_handler_remove();
 124         g_io_channel_unref(gchan);
 125         if (main_loop != NULL)
 126                 g_main_loop_unref(main_loop);
 127         return 0;
 128 }