* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
- * $Id: scache.c 6 2005-09-10 01:02:21Z nenolod $
*/
#include "stdinc.h"
#include "client.h"
#include "common.h"
-#include "irc_string.h"
+#include "match.h"
#include "ircd.h"
#include "numeric.h"
#include "send.h"
#include "scache.h"
-#include "memory.h"
+#include "s_conf.h"
/*
* in its lifetime is at most a few hundred. by tokenizing server
* names internally, the server can easily save 2 or 3 megs of RAM.
* -orabidoo
+ *
+ * reworked to serve for flattening/delaying /links also
+ * -- jilles
*/
#define SCACHE_HASH_SIZE 257
-typedef struct scache_entry
+#define SC_ONLINE 1
+#define SC_HIDDEN 2
+
+struct scache_entry
{
char name[HOSTLEN + 1];
+ char info[REALLEN + 1];
+ int flags;
+ time_t known_since;
+ time_t last_connect;
+ time_t last_split;
struct scache_entry *next;
-}
-SCACHE;
+};
-static SCACHE *scache_hash[SCACHE_HASH_SIZE];
+static struct scache_entry *scache_hash[SCACHE_HASH_SIZE];
void
clear_scache_hash_table(void)
return hash_value % SCACHE_HASH_SIZE;
}
-/*
- * this takes a server name, and returns a pointer to the same string
- * (up to case) in the server name token list, adding it to the list if
- * it's not there. care must be taken not to call this with
- * user-supplied arguments that haven't been verified to be a valid,
- * existing, servername. use the hash in list.c for those. -orabidoo
- */
-
-const char *
+static struct scache_entry *
find_or_add(const char *name)
{
int hash_index;
- SCACHE *ptr;
+ struct scache_entry *ptr;
ptr = scache_hash[hash_index = sc_hash(name)];
for (; ptr; ptr = ptr->next)
{
if(!irccmp(ptr->name, name))
- return (ptr->name);
+ return ptr;
}
- ptr = (SCACHE *) MyMalloc(sizeof(SCACHE));
+ ptr = (struct scache_entry *) rb_malloc(sizeof(struct scache_entry));
s_assert(0 != ptr);
- strlcpy(ptr->name, name, sizeof(ptr->name));
+ rb_strlcpy(ptr->name, name, sizeof(ptr->name));
+ ptr->info[0] = '\0';
+ ptr->flags = 0;
+ ptr->known_since = rb_current_time();
+ ptr->last_connect = 0;
+ ptr->last_split = 0;
ptr->next = scache_hash[hash_index];
scache_hash[hash_index] = ptr;
+ return ptr;
+}
+
+struct scache_entry *
+scache_connect(const char *name, const char *info, int hidden)
+{
+ struct scache_entry *ptr;
+
+ ptr = find_or_add(name);
+ rb_strlcpy(ptr->info, info, sizeof(ptr->info));
+ ptr->flags |= SC_ONLINE;
+ if (hidden)
+ ptr->flags |= SC_HIDDEN;
+ else
+ ptr->flags &= ~SC_HIDDEN;
+ ptr->last_connect = rb_current_time();
+ return ptr;
+}
+
+void
+scache_split(struct scache_entry *ptr)
+{
+ if (ptr == NULL)
+ return;
+ ptr->flags &= ~SC_ONLINE;
+ ptr->last_split = rb_current_time();
+}
+
+const char *scache_get_name(struct scache_entry *ptr)
+{
return ptr->name;
}
+/* scache_send_flattened_links()
+ *
+ * inputs - client to send to
+ * outputs - the cached links, us, and RPL_ENDOFLINKS
+ * side effects -
+ */
+void
+scache_send_flattened_links(struct Client *source_p)
+{
+ struct scache_entry *scache_ptr;
+ int i;
+ int show;
+
+ for (i = 0; i < SCACHE_HASH_SIZE; i++)
+ {
+ scache_ptr = scache_hash[i];
+ while (scache_ptr)
+ {
+ if (!irccmp(scache_ptr->name, me.name))
+ show = FALSE;
+ else if (scache_ptr->flags & SC_HIDDEN &&
+ !ConfigServerHide.disable_hidden)
+ show = FALSE;
+ else if (scache_ptr->flags & SC_ONLINE)
+ show = scache_ptr->known_since < rb_current_time() - ConfigServerHide.links_delay;
+ else
+ show = scache_ptr->last_split > rb_current_time() - ConfigServerHide.links_delay && scache_ptr->last_split - scache_ptr->known_since > ConfigServerHide.links_delay;
+ if (show)
+ sendto_one_numeric(source_p, RPL_LINKS, form_str(RPL_LINKS),
+ scache_ptr->name, me.name, 1, scache_ptr->info);
+
+ scache_ptr = scache_ptr->next;
+ }
+ }
+ sendto_one_numeric(source_p, RPL_LINKS, form_str(RPL_LINKS),
+ me.name, me.name, 0, me.info);
+
+ sendto_one_numeric(source_p, RPL_ENDOFLINKS, form_str(RPL_ENDOFLINKS), "*");
+}
+
+#define MISSING_TIMEOUT 86400
+
+/* scache_send_missing()
+ *
+ * inputs - client to send to
+ * outputs - recently split servers
+ * side effects -
+ */
+void
+scache_send_missing(struct Client *source_p)
+{
+ struct scache_entry *scache_ptr;
+ int i;
+
+ for (i = 0; i < SCACHE_HASH_SIZE; i++)
+ {
+ scache_ptr = scache_hash[i];
+ while (scache_ptr)
+ {
+ if (!(scache_ptr->flags & SC_ONLINE) && scache_ptr->last_split > rb_current_time() - MISSING_TIMEOUT)
+ sendto_one_numeric(source_p, RPL_MAP, "** %s (recently split)",
+ scache_ptr->name);
+
+ scache_ptr = scache_ptr->next;
+ }
+ }
+}
/*
* count_scache
* inputs - pointer to where to leave number of servers cached
void
count_scache(size_t * number_servers_cached, size_t * mem_servers_cached)
{
- SCACHE *scache_ptr;
+ struct scache_entry *scache_ptr;
int i;
*number_servers_cached = 0;
{
*number_servers_cached = *number_servers_cached + 1;
*mem_servers_cached = *mem_servers_cached +
- (strlen(scache_ptr->name) + sizeof(SCACHE *));
+ sizeof(struct scache_entry );
scache_ptr = scache_ptr->next;
}
projects / irc / rqf / shadowircd.git / blobdiff