test/test-channel.c

   1 /* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
   2 /* test-channel.c - Test for the `open_as_channel' functionality of the GNOME
   3    Virtual File System.
   4
   5    Copyright (C) 1999 Free Software Foundation
   6
   7    The Gnome Library is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU Library General Public License as
   9    published by the Free Software Foundation; either version 2 of the
  10    License, or (at your option) any later version.
  11
  12    The Gnome Library 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 GNU
  15    Library General Public License for more details.
  16
  17    You should have received a copy of the GNU Library General Public
  18    License along with the Gnome Library; see the file COPYING.LIB.  If not,
  19    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.
  21
  22    Author: Ettore Perazzoli <ettore@comm2000.it> */
  23
  24 #include <config.h>
  25
  26 #include <glib/gconvert.h> /* workaround for bug in giochannel.h */
  27 #include <glib/giochannel.h>
  28 #include <glib/gmain.h>
  29 #include <glib/gmessages.h>
  30 #include <libgnomevfs/gnome-vfs-async-ops.h>
  31 #include <libgnomevfs/gnome-vfs-init.h>
  32 #include <stdio.h>
  33
  34 #define BUFFER_SIZE 4096
  35
  36 static GMainLoop *main_loop;
  37
  38 static gboolean
  39 io_channel_callback (GIOChannel *source,
  40                      GIOCondition condition,
  41                      gpointer data)
  42 {
  43         gchar buffer[BUFFER_SIZE + 1];
  44         gsize bytes_read;
  45
  46         printf ("\n\n************ IO Channel callback!\n");
  47
  48         if (condition & G_IO_IN) {
  49                 g_io_channel_read_chars (source, buffer, sizeof (buffer) - 1, &bytes_read, NULL);
  50                 buffer[bytes_read] = 0;
  51                 printf ("---> Read %lu byte(s):\n%s\n\n(***END***)\n",
  52                         (gulong)bytes_read, buffer);
  53                 fflush (stdout);
  54         }
  55
  56         if (condition & G_IO_NVAL) {
  57                 g_warning ("channel_callback got NVAL condition.");
  58                 return FALSE;
  59         }
  60
  61         if (condition & G_IO_HUP) {
  62                 printf ("\n----- EOF -----\n");
  63                 fflush (stdout);
  64                 g_io_channel_shutdown (source, FALSE, NULL);
  65                 g_main_loop_quit (main_loop);
  66                 return FALSE;
  67         }
  68
  69         return TRUE;
  70 }
  71
  72 static void open_callback (GnomeVFSAsyncHandle *handle,
  73                            GIOChannel *channel,
  74                            GnomeVFSResult result,
  75                            gpointer data)
  76 {
  77         if (result != GNOME_VFS_OK) {
  78                 printf ("Error opening: %s.\n",
  79                         gnome_vfs_result_to_string (result));
  80                 return;
  81         }
  82
  83         printf ("Open successful, callback data `%s'.\n", (gchar *) data);
  84         g_io_add_watch_full (channel,
  85                              G_PRIORITY_HIGH,
  86                              G_IO_IN | G_IO_NVAL | G_IO_HUP,
  87                              io_channel_callback, handle,
  88                              NULL);
  89
  90         g_io_channel_unref (channel);
  91 }
  92
  93 \f
  94 int
  95 main (int argc, char **argv)
  96 {
  97         GnomeVFSAsyncHandle *handle;
  98
  99         if (argc < 2) {
 100                 fprintf (stderr, "Usage: %s <uri>\n", argv[0]);
 101                 return 1;
 102         }
 103
 104         puts ("Initializing gnome-vfs...");
 105         gnome_vfs_init ();
 106
 107         printf ("Starting open for `%s'...\n", argv[1]);
 108         gnome_vfs_async_open_as_channel (&handle, argv[1],
 109                                          GNOME_VFS_OPEN_READ,
 110                                          BUFFER_SIZE,
 111                                          0,
 112                                          open_callback,
 113                                          "open_callback");
 114
 115         puts ("GTK+ main loop running.");
 116         main_loop = g_main_loop_new (NULL, TRUE);
 117         g_main_loop_run (main_loop);
 118         g_main_loop_unref (main_loop);
 119
 120         puts ("GTK+ main loop finished.");
 121
 122         puts ("All done");
 123
 124         while (1)
 125                 ;
 126
 127         return 0;
 128 }