From 6f37f0e1126ad3776b80dbd64701f38a58738921 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Sun, 6 Nov 2005 15:00:43 +0000
Subject: [PATCH 1/1] add new client state AVAHI_CLIENT_FAILURE

git-svn-id: file:///home/lennart/svn/public/avahi/trunk@931 941a03a8-eaeb-0310-b9a0-b1bbd8fe43fe
---
 avahi-client/client.c             | 1 +
 avahi-client/client.h             | 9 +++++----
 avahi-common/gccmacro.h           | 8 ++------
 avahi-compat-howl/compat.c        | 1 +
 avahi-compat-libdns_sd/compat.c   | 4 +++-
 avahi-utils/avahi-browse.c        | 7 ++++++-
 examples/client-publish-service.c | 7 +++++++
 7 files changed, 25 insertions(+), 12 deletions(-)

diff --git a/avahi-client/client.c b/avahi-client/client.c
index ce4cfa0..d4faed0 100644
--- a/avahi-client/client.c
+++ b/avahi-client/client.c
@@ -62,6 +62,7 @@ static void client_set_state (AvahiClient *client, AvahiServerState state) {
 
     switch (client->state) {
         case AVAHI_CLIENT_DISCONNECTED:
+        case AVAHI_CLIENT_FAILURE:
             if (client->bus) {
                 dbus_connection_disconnect(client->bus);
                 dbus_connection_unref(client->bus);
diff --git a/avahi-client/client.h b/avahi-client/client.h
index 5128bd9..36bf7cd 100644
--- a/avahi-client/client.h
+++ b/avahi-client/client.h
@@ -43,10 +43,11 @@ typedef struct AvahiClient AvahiClient;
 
 /** States of a client object, a superset of AvahiServerState */
 typedef enum {
-    AVAHI_CLIENT_S_REGISTERING = AVAHI_SERVER_REGISTERING,
-    AVAHI_CLIENT_S_RUNNING = AVAHI_SERVER_RUNNING,
-    AVAHI_CLIENT_S_COLLISION = AVAHI_SERVER_COLLISION,
-    AVAHI_CLIENT_DISCONNECTED = 100 /**< Lost DBUS connection to the Avahi daemon */
+    AVAHI_CLIENT_S_REGISTERING = AVAHI_SERVER_REGISTERING,  /**< Server state: REGISTERING */
+    AVAHI_CLIENT_S_RUNNING = AVAHI_SERVER_RUNNING,          /**< Server state: RUNNING */
+    AVAHI_CLIENT_S_COLLISION = AVAHI_SERVER_COLLISION,      /**< Server state: COLLISION */
+    AVAHI_CLIENT_DISCONNECTED = 100,                        /**< Lost DBUS connection to the Avahi daemon */
+    AVAHI_CLIENT_FAILURE = 101                              /**< Some kind of error happened on the client side */
 } AvahiClientState;
 
 /** The function prototype for the callback of an AvahiClient */
diff --git a/avahi-common/gccmacro.h b/avahi-common/gccmacro.h
index 2e427b7..78a09a7 100644
--- a/avahi-common/gccmacro.h
+++ b/avahi-common/gccmacro.h
@@ -28,13 +28,9 @@
 
 AVAHI_C_DECL_BEGIN
 
-#ifdef __GNUC__
-#if __GNUC__ >= 4
+#if defined(__GNUC__) && (__GNUC__ >= 4)
 #define AVAHI_GCC_SENTINEL __attribute__ ((sentinel))
-#endif
-#endif
-
-#ifndef AVAHI_GCC_SENTINEL
+#else
 /** Macro for usage of GCC's sentinel compilation warnings */
 #define AVAHI_GCC_SENTINEL
 #endif
diff --git a/avahi-compat-howl/compat.c b/avahi-compat-howl/compat.c
index 18171f8..8db8fe0 100644
--- a/avahi-compat-howl/compat.c
+++ b/avahi-compat-howl/compat.c
@@ -694,6 +694,7 @@ static void reg_client_callback(oid_data *data, AvahiClientState state) {
         return;
     
     switch (state) {
+        case AVAHI_CLIENT_FAILURE:
         case AVAHI_CLIENT_DISCONNECTED:
             reg_report_status(data, SW_DISCOVERY_PUBLISH_INVALID);
             break;
diff --git a/avahi-compat-libdns_sd/compat.c b/avahi-compat-libdns_sd/compat.c
index 70ccd4b..6fec3c9 100644
--- a/avahi-compat-libdns_sd/compat.c
+++ b/avahi-compat-libdns_sd/compat.c
@@ -479,7 +479,8 @@ static void generic_client_callback(AvahiClient *s, AvahiClientState state, void
     assert(sdref->n_ref >= 1);
 
     switch (state) {
-            
+
+        case AVAHI_CLIENT_FAILURE:
         case AVAHI_CLIENT_DISCONNECTED:
 
             if (sdref->service_browser_callback)
@@ -860,6 +861,7 @@ static void reg_client_callback(AvahiClient *s, AvahiClientState state, void* us
         return;
     
     switch (state) {
+        case AVAHI_CLIENT_FAILURE:
         case AVAHI_CLIENT_DISCONNECTED:
             reg_report_error(sdref, kDNSServiceErr_Unknown);
             break;
diff --git a/avahi-utils/avahi-browse.c b/avahi-utils/avahi-browse.c
index 169f62b..b8910fc 100644
--- a/avahi-utils/avahi-browse.c
+++ b/avahi-utils/avahi-browse.c
@@ -473,8 +473,13 @@ static void browse_domains(Config *c) {
     n_all_for_now++;
 }
 
-static void client_callback(AVAHI_GCC_UNUSED AvahiClient *c, AvahiClientState state, AVAHI_GCC_UNUSED void * userdata) {
+static void client_callback(AvahiClient *c, AvahiClientState state, AVAHI_GCC_UNUSED void * userdata) {
     switch (state) {
+        case AVAHI_CLIENT_FAILURE:
+            fprintf(stderr, "Client failure, exiting: %s\n", avahi_strerror(avahi_client_errno(c)));
+            avahi_simple_poll_quit(simple_poll);
+            break;
+            
         case AVAHI_CLIENT_DISCONNECTED:
             fprintf(stderr, "Client disconnected, exiting.\n");
             avahi_simple_poll_quit(simple_poll);
diff --git a/examples/client-publish-service.c b/examples/client-publish-service.c
index 7013156..2f126c1 100644
--- a/examples/client-publish-service.c
+++ b/examples/client-publish-service.c
@@ -157,6 +157,13 @@ static void client_callback(AvahiClient *c, AvahiClientState state, AVAHI_GCC_UN
 
             break;
 
+        case AVAHI_CLIENT_FAILURE:
+            
+            fprintf(stderr, "Client failure: %s\n", avahi_strerror(avahi_client_errno(c)));
+            avahi_simple_poll_quit(simple_poll);
+            
+            break;
+
         case AVAHI_CLIENT_S_REGISTERING:
             ;
     }
-- 
2.39.2