X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=avahi-core%2Fcache.h;h=49ba9b9c4d92bae42843eb49d19334862efc082b;hb=9c0f9c65093cfa53d45f9b68782321eb8063a032;hp=b6e3e8addf70cb7829e61f09475f4f15bfa6711b;hpb=48cfb3c876636d79dace3ebc8e82c946bc0b7ebf;p=catta diff --git a/avahi-core/cache.h b/avahi-core/cache.h index b6e3e8a..49ba9b9 100644 --- a/avahi-core/cache.h +++ b/avahi-core/cache.h @@ -1,42 +1,43 @@ #ifndef foocachehfoo #define foocachehfoo -/* $Id$ */ - /*** 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 - typedef struct AvahiCache AvahiCache; +#include #include "prioq.h" -#include "server.h" -#include "llist.h" +#include "internal.h" #include "timeeventq.h" +#include "hashmap.h" typedef enum { AVAHI_CACHE_VALID, AVAHI_CACHE_EXPIRY1, AVAHI_CACHE_EXPIRY2, AVAHI_CACHE_EXPIRY3, - AVAHI_CACHE_FINAL + AVAHI_CACHE_EXPIRY_FINAL, + AVAHI_CACHE_POOF, /* Passive observation of failure */ + AVAHI_CACHE_POOF_FINAL, + AVAHI_CACHE_GOODBYE_FINAL, + AVAHI_CACHE_REPLACE_FINAL } AvahiCacheEntryState; typedef struct AvahiCacheEntry AvahiCacheEntry; @@ -44,45 +45,56 @@ typedef struct AvahiCacheEntry AvahiCacheEntry; struct AvahiCacheEntry { AvahiCache *cache; AvahiRecord *record; - GTimeVal timestamp; - GTimeVal expiry; - gboolean cache_flush; - + struct timeval timestamp; + struct timeval poof_timestamp; + struct timeval expiry; + int cache_flush; + int poof_num; + AvahiAddress origin; AvahiCacheEntryState state; AvahiTimeEvent *time_event; + AvahiAddress poof_address; + AVAHI_LLIST_FIELDS(AvahiCacheEntry, by_key); AVAHI_LLIST_FIELDS(AvahiCacheEntry, entry); }; struct AvahiCache { AvahiServer *server; - + AvahiInterface *interface; - - GHashTable *hash_table; + + AvahiHashmap *hashmap; AVAHI_LLIST_HEAD(AvahiCacheEntry, entries); - guint n_entries; + unsigned n_entries; + + int last_rand; + time_t last_rand_timestamp; }; AvahiCache *avahi_cache_new(AvahiServer *server, AvahiInterface *interface); void avahi_cache_free(AvahiCache *c); -AvahiCacheEntry *avahi_cache_lookup_key(AvahiCache *c, AvahiKey *k); -AvahiCacheEntry *avahi_cache_lookup_record(AvahiCache *c, AvahiRecord *r); +void avahi_cache_update(AvahiCache *c, AvahiRecord *r, int cache_flush, const AvahiAddress *a); + +int avahi_cache_dump(AvahiCache *c, AvahiDumpCallback callback, void* userdata); -void avahi_cache_update(AvahiCache *c, AvahiRecord *r, gboolean cache_flush, const AvahiAddress *a); +typedef void* AvahiCacheWalkCallback(AvahiCache *c, AvahiKey *pattern, AvahiCacheEntry *e, void* userdata); +void* avahi_cache_walk(AvahiCache *c, AvahiKey *pattern, AvahiCacheWalkCallback cb, void* userdata); -void avahi_cache_dump(AvahiCache *c, AvahiDumpCallback callback, gpointer userdata); +int avahi_cache_entry_half_ttl(AvahiCache *c, AvahiCacheEntry *e); -typedef gpointer AvahiCacheWalkCallback(AvahiCache *c, AvahiKey *pattern, AvahiCacheEntry *e, gpointer userdata); -gpointer avahi_cache_walk(AvahiCache *c, AvahiKey *pattern, AvahiCacheWalkCallback cb, gpointer userdata); +/** Start the "Passive observation of Failure" algorithm for all + * records of the specified key. The specified address is */ +void avahi_cache_start_poof(AvahiCache *c, AvahiKey *key, const AvahiAddress *a); -gboolean avahi_cache_entry_half_ttl(AvahiCache *c, AvahiCacheEntry *e); +/* Stop a previously started POOF algorithm for a record. (Used for response suppresions records */ +void avahi_cache_stop_poof(AvahiCache *c, AvahiRecord *record, const AvahiAddress *a); void avahi_cache_flush(AvahiCache *c);