X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=avahi-core%2Fbrowse-domain.c;h=9705b2a52a620ecf9088f08b42511ad9fe7ef25b;hb=ee63948824faca1cf7d3a83920c4f55d08d31fc5;hp=e2eab44bafc79ad9fcf032c10ecf86b3660d2aca;hpb=d1dd07145bb3db5c6fd77c55aea762eb79ab3b5c;p=catta

diff --git a/avahi-core/browse-domain.c b/avahi-core/browse-domain.c
index e2eab44..9705b2a 100644
--- a/avahi-core/browse-domain.c
+++ b/avahi-core/browse-domain.c
@@ -1,18 +1,16 @@
-/* $Id$ */
-
 /***
   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
@@ -23,23 +21,40 @@
 #include <config.h>
 #endif
 
+#include <stdlib.h>
+
 #include <avahi-common/domain.h>
 #include <avahi-common/malloc.h>
 #include <avahi-common/error.h>
 
 #include "browse.h"
+#include "log.h"
 
 struct AvahiSDomainBrowser {
+    int ref;
+
     AvahiServer *server;
-    
+
     AvahiSRecordBrowser *record_browser;
-    
+
+    AvahiDomainBrowserType type;
     AvahiSDomainBrowserCallback callback;
     void* userdata;
 
+    AvahiTimeEvent *defer_event;
+
+    int all_for_now_scheduled;
+
     AVAHI_LLIST_FIELDS(AvahiSDomainBrowser, browser);
 };
 
+static void inc_ref(AvahiSDomainBrowser *b) {
+    assert(b);
+    assert(b->ref >= 1);
+
+    b->ref++;
+}
+
 static void record_browser_callback(
     AvahiSRecordBrowser*rr,
     AvahiIfIndex interface,
@@ -48,21 +63,77 @@ static void record_browser_callback(
     AvahiRecord *record,
     AvahiLookupResultFlags flags,
     void* userdata) {
-    
+
     AvahiSDomainBrowser *b = userdata;
     char *n = NULL;
 
     assert(rr);
     assert(b);
-    
+
+    if (event == AVAHI_BROWSER_ALL_FOR_NOW &&
+        b->defer_event) {
+
+        b->all_for_now_scheduled = 1;
+        return;
+    }
+
+    /* Filter flags */
+    flags &= AVAHI_LOOKUP_RESULT_CACHED | AVAHI_LOOKUP_RESULT_MULTICAST | AVAHI_LOOKUP_RESULT_WIDE_AREA;
+
     if (record) {
         assert(record->key->type == AVAHI_DNS_TYPE_PTR);
         n = record->data.ptr.name;
+
+        if (b->type == AVAHI_DOMAIN_BROWSER_BROWSE) {
+            AvahiStringList *l;
+
+            /* Filter out entries defined statically */
+
+            for (l = b->server->config.browse_domains; l; l = l->next)
+                if (avahi_domain_equal((char*) l->text, n))
+                    return;
+        }
+
     }
-        
+
     b->callback(b, interface, protocol, event, n, flags, b->userdata);
 }
 
+static void defer_callback(AvahiTimeEvent *e, void *userdata) {
+    AvahiSDomainBrowser *b = userdata;
+    AvahiStringList *l;
+
+    assert(e);
+    assert(b);
+
+    assert(b->type == AVAHI_DOMAIN_BROWSER_BROWSE);
+
+    avahi_time_event_free(b->defer_event);
+    b->defer_event = NULL;
+
+    /* Increase ref counter */
+    inc_ref(b);
+
+    for (l = b->server->config.browse_domains; l; l = l->next) {
+
+        /* Check whether this object still exists outside our own
+         * stack frame */
+        if (b->ref <= 1)
+            break;
+
+        b->callback(b, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, AVAHI_BROWSER_NEW, (char*) l->text, AVAHI_LOOKUP_RESULT_STATIC, b->userdata);
+    }
+
+    if (b->ref > 1) {
+        /* If the ALL_FOR_NOW event has already been scheduled, execute it now */
+
+        if (b->all_for_now_scheduled)
+            b->callback(b, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, AVAHI_BROWSER_ALL_FOR_NOW, NULL, 0, b->userdata);
+    }
+
+    /* Decrease ref counter */
+    avahi_s_domain_browser_free(b);
+}
 
 AvahiSDomainBrowser *avahi_s_domain_browser_new(
     AvahiServer *server,
@@ -75,18 +146,18 @@ AvahiSDomainBrowser *avahi_s_domain_browser_new(
     void* userdata) {
 
     static const char * const type_table[AVAHI_DOMAIN_BROWSER_MAX] = {
-        "r",
-        "dr",
         "b",
         "db",
+        "r",
+        "dr",
         "lb"
     };
-    
+
     AvahiSDomainBrowser *b;
     AvahiKey *k = NULL;
     char n[AVAHI_DOMAIN_NAME_MAX];
     int r;
-    
+
     assert(server);
     assert(callback);
 
@@ -103,16 +174,20 @@ AvahiSDomainBrowser *avahi_s_domain_browser_new(
         avahi_server_set_errno(server, r);
         return NULL;
     }
-    
+
     if (!(b = avahi_new(AvahiSDomainBrowser, 1))) {
         avahi_server_set_errno(server, AVAHI_ERR_NO_MEMORY);
         return NULL;
     }
-    
+
+    b->ref = 1;
     b->server = server;
     b->callback = callback;
     b->userdata = userdata;
     b->record_browser = NULL;
+    b->type = type;
+    b->all_for_now_scheduled = 0;
+    b->defer_event = NULL;
 
     AVAHI_LLIST_PREPEND(AvahiSDomainBrowser, browser, server->domain_browsers, b);
 
@@ -120,30 +195,41 @@ AvahiSDomainBrowser *avahi_s_domain_browser_new(
         avahi_server_set_errno(server, AVAHI_ERR_NO_MEMORY);
         goto fail;
     }
-    
+
     if (!(b->record_browser = avahi_s_record_browser_new(server, interface, protocol, k, flags, record_browser_callback, b)))
         goto fail;
-    
+
     avahi_key_unref(k);
+
+    if (type == AVAHI_DOMAIN_BROWSER_BROWSE && b->server->config.browse_domains)
+        b->defer_event = avahi_time_event_new(server->time_event_queue, NULL, defer_callback, b);
+
     return b;
-    
+
 fail:
-    
+
     if (k)
         avahi_key_unref(k);
-    
+
     avahi_s_domain_browser_free(b);
-    
+
     return NULL;
 }
 
 void avahi_s_domain_browser_free(AvahiSDomainBrowser *b) {
     assert(b);
 
+    assert(b->ref >= 1);
+    if (--b->ref > 0)
+        return;
+
     AVAHI_LLIST_REMOVE(AvahiSDomainBrowser, browser, b->server->domain_browsers, b);
 
     if (b->record_browser)
         avahi_s_record_browser_free(b->record_browser);
-    
+
+    if (b->defer_event)
+        avahi_time_event_free(b->defer_event);
+
     avahi_free(b);
 }