Branching for wide-area publishing work

  


git-svn-id: file:///home/lennart/svn/public/avahi/branches/federico@1344 941a03a8-eaeb-0310-b9a0-b1bbd8fe43fe

1 files changed, 190 insertions, 0 deletions

diff --git a/trunk/avahi-core/rrlist.c b/trunk/avahi-core/rrlist.c
new file mode 100644
index 0000000..915ecbb
--- /dev/null
+++ b/trunk/avahi-core/rrlist.c
@@ -0,0 +1,190 @@
+/* $Id$ */
+
+/***
+  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.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <assert.h>
+
+#include <avahi-common/llist.h>
+#include <avahi-common/malloc.h>
+
+#include "rrlist.h"
+#include "log.h"
+
+typedef struct AvahiRecordListItem AvahiRecordListItem;
+
+struct AvahiRecordListItem {
+    int read;
+    AvahiRecord *record;
+    int unicast_response;
+    int flush_cache;
+    int auxiliary;
+    AVAHI_LLIST_FIELDS(AvahiRecordListItem, items);
+};
+
+struct AvahiRecordList {
+    AVAHI_LLIST_HEAD(AvahiRecordListItem, read);
+    AVAHI_LLIST_HEAD(AvahiRecordListItem, unread);
+
+    int all_flush_cache;
+};
+
+AvahiRecordList *avahi_record_list_new(void) {
+    AvahiRecordList *l;
+
+    if (!(l = avahi_new(AvahiRecordList, 1))) {
+        avahi_log_error("avahi_new() failed.");
+        return NULL;
+    }
+    
+    AVAHI_LLIST_HEAD_INIT(AvahiRecordListItem, l->read);
+    AVAHI_LLIST_HEAD_INIT(AvahiRecordListItem, l->unread);
+
+    l->all_flush_cache = 1;
+    return l;
+}
+
+void avahi_record_list_free(AvahiRecordList *l) {
+    assert(l);
+
+    avahi_record_list_flush(l);
+    avahi_free(l);
+}
+
+static void item_free(AvahiRecordList *l, AvahiRecordListItem *i) {
+    assert(l);
+    assert(i);
+
+    if (i->read) 
+        AVAHI_LLIST_REMOVE(AvahiRecordListItem, items, l->read, i);
+    else
+        AVAHI_LLIST_REMOVE(AvahiRecordListItem, items, l->unread, i);
+    
+    avahi_record_unref(i->record);
+    avahi_free(i);
+}
+
+void avahi_record_list_flush(AvahiRecordList *l) {
+    assert(l);
+    
+    while (l->read)
+        item_free(l, l->read);
+    while (l->unread)
+        item_free(l, l->unread);
+
+    l->all_flush_cache = 1;
+}
+
+AvahiRecord* avahi_record_list_next(AvahiRecordList *l, int *ret_flush_cache, int *ret_unicast_response, int *ret_auxiliary) {
+    AvahiRecord *r;
+    AvahiRecordListItem *i;
+
+    if (!(i = l->unread))
+        return NULL;
+
+    assert(!i->read);
+    
+    r = avahi_record_ref(i->record);
+    if (ret_unicast_response)
+        *ret_unicast_response = i->unicast_response;
+    if (ret_flush_cache)
+        *ret_flush_cache = i->flush_cache;
+    if (ret_auxiliary)
+        *ret_auxiliary = i->auxiliary;
+
+    AVAHI_LLIST_REMOVE(AvahiRecordListItem, items, l->unread, i);
+    AVAHI_LLIST_PREPEND(AvahiRecordListItem, items, l->read, i);
+
+    i->read = 1;
+    
+    return r;
+}
+
+static AvahiRecordListItem *get(AvahiRecordList *l, AvahiRecord *r) {
+    AvahiRecordListItem *i;
+
+    assert(l);
+    assert(r);
+    
+    for (i = l->read; i; i = i->items_next)
+        if (avahi_record_equal_no_ttl(i->record, r))
+            return i;
+
+    for (i = l->unread; i; i = i->items_next)
+        if (avahi_record_equal_no_ttl(i->record, r))
+            return i;
+
+    return NULL;
+}
+
+void avahi_record_list_push(AvahiRecordList *l, AvahiRecord *r, int flush_cache, int unicast_response, int auxiliary) {
+    AvahiRecordListItem *i;
+        
+    assert(l);
+    assert(r);
+
+    if (get(l, r))
+        return;
+
+    if (!(i = avahi_new(AvahiRecordListItem, 1))) {
+        avahi_log_error("avahi_new() failed.");
+        return;
+    }
+    
+    i->unicast_response = unicast_response;
+    i->flush_cache = flush_cache;
+    i->auxiliary = auxiliary;
+    i->record = avahi_record_ref(r);
+    i->read = 0;
+
+    l->all_flush_cache = l->all_flush_cache && flush_cache;
+    
+    AVAHI_LLIST_PREPEND(AvahiRecordListItem, items, l->unread, i);
+}
+
+void avahi_record_list_drop(AvahiRecordList *l, AvahiRecord *r) {
+    AvahiRecordListItem *i;
+
+    assert(l);
+    assert(r);
+
+    if (!(i = get(l, r)))
+        return;
+
+    item_free(l, i);
+}
+
+int avahi_record_list_is_empty(AvahiRecordList *l) {
+    assert(l);
+    
+    return !l->unread && !l->read;
+}
+
+int avahi_record_list_all_flush_cache(AvahiRecordList *l) {
+    assert(l);
+
+    /* Return TRUE if all entries in this list have flush_cache set */
+    
+    return l->all_flush_cache;
+}