* Add glib integration example.

git-svn-id: file:///home/lennart/svn/public/avahi/trunk@394 941a03a8-eaeb-0310-b9a0-b1bbd8fe43fe

3 files changed, 154 insertions, 0 deletions

diff --git a/avahi-client/client.h b/avahi-client/client.h
index 56672e3..20054ad 100644
--- a/avahi-client/client.h
+++ b/avahi-client/client.h
@@ -39,6 +39,9 @@
 
 /** \example client-browse-services.c Example how to browse for DNS-SD
  * services using the client interface to avahi-daemon. */
+
+/** \example glib-integration.c Example of how to integrate
+ * avahi use with GLIB/GTK applications */
  
 
 #ifndef DOXYGEN_SHOULD_SKIP_THIS
diff --git a/examples/Makefile.am b/examples/Makefile.am
index fa26456..137dd55 100644
--- a/examples/Makefile.am
+++ b/examples/Makefile.am
@@ -46,3 +46,13 @@ client_browse_services_CFLAGS = $(AM_CFLAGS)
 client_browse_services_LDADD = $(AM_LDADD) ../avahi-client/libavahi-client.la ../avahi-common/libavahi-common.la
 
 endif
+
+if HAVE_GTK
+
+noinst_PROGRAMS += \
+	glib-integration
+glib_integration_SOURCES = glib-integration.c
+glib_integration_CFLAGS = $(AM_CFLAGS) $(GLIB20_CFLAGS)
+glib_integration_LDADD = $(AM_LDADD) $(GLIB20_LIBS) ../avahi-client/libavahi-client.la ../avahi-common/libavahi-common.la ../avahi-glib/libavahi-glib.la
+
+endif
diff --git a/examples/glib-integration.c b/examples/glib-integration.c
new file mode 100644
index 0000000..4c17ebf
--- /dev/null
+++ b/examples/glib-integration.c
@@ -0,0 +1,141 @@
+/* $Id$ */
+
+/***
+  This file is part of avahi.
+ 
+  avahi is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as
+  published by the Free Software Foundation; either version 2.1 of the
+  License, or (at your option) any later version.
+ 
+  avahi is distributed in the hope that it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+  or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
+  Public License for more details.
+ 
+  You should have received a copy of the GNU Lesser General Public
+  License along with avahi; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+  USA.
+***/
+
+#include <glib.h>
+
+#include <avahi-client/client.h>
+#include <avahi-common/error.h>
+#include <avahi-common/timeval.h>
+#include <avahi-glib/glib-watch.h>
+#include <avahi-glib/glib-malloc.h>
+
+/* Callback for Avahi API Timeout Event */
+static void
+avahi_timeout_event (AvahiTimeout *timeout, void *userdata)
+{
+    g_message ("Avahi API Timeout reached!");
+}
+
+/* Callback for GLIB API Timeout Event */
+static gboolean
+avahi_timeout_event_glib (void *userdata)
+{
+    GMainLoop *loop = userdata;
+
+    g_message ("GLIB API Timeout reached, quitting main loop!");
+    
+    /* Quit the application */
+    g_main_loop_quit (loop);
+
+    return FALSE; /* Don't re-schedule timeout event */
+}
+
+/* Callback for state changes on the Client */
+static void
+avahi_client_callback (AvahiClient *client, AvahiClientState state, void *userdata)
+{
+    GMainLoop *loop = userdata;
+
+    g_message ("Avahi Client State Change: %d", state);
+
+    if (state == AVAHI_CLIENT_DISCONNECTED)
+    {
+        /* We we're disconnected from the Daemon */
+        g_message ("Disconnected from the Avahi Daemon");
+
+        /* Quit the application */
+        g_main_loop_quit (loop);
+    }
+}
+
+int
+main (int argc, char *argv[])
+{
+    GMainLoop *loop = NULL;
+    const AvahiPoll *poll_api;
+    AvahiGLibPoll *glib_poll;
+    AvahiClient *client;
+    struct timeval tv;
+    const char *version;
+    int error;
+
+    /* Optional: Tell avahi to use g_malloc and g_free */
+    avahi_set_allocator (avahi_glib_allocator ());
+
+    /* Create the GLIB main loop */
+    loop = g_main_loop_new (NULL, FALSE);
+
+    /* Create the GLIB Adaptor */
+    glib_poll = avahi_glib_poll_new (NULL, G_PRIORITY_DEFAULT);
+    poll_api = avahi_glib_poll_get (glib_poll);
+
+    /* Example, schedule a timeout event with the Avahi API */
+    avahi_elapse_time (&tv,                         /* timeval structure */
+            1000,                                   /* 1 second */
+            0);                                     /* "jitter" - Random additional delay from 0 to this value */
+
+    poll_api->timeout_new (poll_api,                /* The AvahiPoll object */
+                      &tv,                          /* struct timeval indicating when to go activate */
+                      avahi_timeout_event,          /* Pointer to function to call */
+                      NULL);                        /* User data to pass to function */
+
+    /* Schedule a timeout event with the glib api */
+    g_timeout_add (5000,                            /* 5 seconds */
+            avahi_timeout_event_glib,               /* Pointer to function callback */
+            loop);                                  /* User data to pass to function */
+
+    /* Create a new AvahiClient instance */
+    client = avahi_client_new (poll_api,            /* AvahiPoll object from above */
+            avahi_client_callback,                  /* Callback function for Client state changes */
+            loop,                                   /* User data */
+            &error);                                /* Error return */
+
+    /* Check the error return code */
+    if (client == NULL)
+    {
+        /* Print out the error string */
+        g_warning ("Error initializing Avahi: %s", avahi_strerror (error));
+
+        goto fail;
+    }
+   
+    /* Make a call to get the version string from the daemon */
+    version = avahi_client_get_version_string (client);
+
+    /* Check if the call suceeded */
+    if (version == NULL)
+    {
+        g_warning ("Error getting version string: %s", avahi_strerror (avahi_client_errno (client)));
+
+        goto fail;
+    }
+        
+    g_message ("Avahi Server Version: %s", version);
+
+    /* Start the GLIB Main Loop */
+    g_main_loop_run (loop);
+
+fail:
+    /* Clean up */
+    g_main_loop_unref (loop);
+    avahi_client_free (client);
+    avahi_glib_poll_free (glib_poll);
+}