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ircd: hash: use an irc_radixtree for client names

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This commit is contained in:
William Pitcock 2016-01-09 05:30:13 -06:00
parent 3eeccbe3ce
commit bb4ac31447
2 changed files with 10 additions and 67 deletions
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1
include/hash.h
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@ -30,7 +30,6 @@
struct Dictionary;
struct irc_radixtree;
extern rb_dlink_list *clientTable;
extern rb_dlink_list *channelTable;
extern rb_dlink_list *hostTable;

76
ircd/hash.c
View file

@ -42,13 +42,13 @@
#include "irc_dictionary.h"
#include "irc_radixtree.h"
rb_dlink_list *clientTable;
rb_dlink_list *channelTable;
rb_dlink_list *hostTable;
struct Dictionary *client_connid_tree = NULL;
struct Dictionary *client_zconnid_tree = NULL;
struct irc_radixtree *client_id_tree = NULL;
struct irc_radixtree *client_name_tree = NULL;
struct irc_radixtree *resv_tree = NULL;
@ -96,13 +96,13 @@ struct irc_radixtree *resv_tree = NULL;
void
init_hash(void)
{
clientTable = rb_malloc(sizeof(rb_dlink_list) * U_MAX);
channelTable = rb_malloc(sizeof(rb_dlink_list) * CH_MAX);
hostTable = rb_malloc(sizeof(rb_dlink_list) * HOST_MAX);
client_connid_tree = irc_dictionary_create("client connid", irc_uint32cmp);
client_zconnid_tree = irc_dictionary_create("client zconnid", irc_uint32cmp);
client_id_tree = irc_radixtree_create("client id", NULL);
client_name_tree = irc_radixtree_create("client name", irc_radixtree_irccasecanon);
resv_tree = irc_radixtree_create("resv", irc_radixtree_irccasecanon);
}
@ -167,16 +167,6 @@ fnv_hash_upper_len(const unsigned char *s, int bits, int len)
return h;
}
/* hash_nick()
*
* hashes a nickname, first converting to lowercase
*/
static u_int32_t
hash_nick(const char *name)
{
return fnv_hash_upper((const unsigned char *) name, U_MAX_BITS);
}
/* hash_channel()
*
* hashes a channel name, based on first 30 chars only for efficiency
@ -218,15 +208,12 @@ add_to_id_hash(const char *name, struct Client *client_p)
void
add_to_client_hash(const char *name, struct Client *client_p)
{
unsigned int hashv;
s_assert(name != NULL);
s_assert(client_p != NULL);
if(EmptyString(name) || (client_p == NULL))
return;
hashv = hash_nick(name);
rb_dlinkAddAlloc(client_p, &clientTable[hashv]);
irc_radixtree_add(client_name_tree, name, client_p);
}
/* add_to_hostname_hash()
@ -284,16 +271,13 @@ del_from_id_hash(const char *id, struct Client *client_p)
void
del_from_client_hash(const char *name, struct Client *client_p)
{
unsigned int hashv;
/* no s_asserts, this can happen when removing a client that
* is unregistered.
*/
if(EmptyString(name) || client_p == NULL)
return;
hashv = hash_nick(name);
rb_dlinkFindDestroy(client_p, &clientTable[hashv]);
irc_radixtree_delete(client_name_tree, name);
}
/* del_from_channel_hash()
@ -354,10 +338,6 @@ del_from_resv_hash(const char *name, struct ConfItem *aconf)
struct Client *
find_id(const char *name)
{
struct Client *target_p;
rb_dlink_node *ptr;
unsigned int hashv;
if(EmptyString(name))
return NULL;
@ -371,10 +351,6 @@ find_id(const char *name)
struct Client *
find_client(const char *name)
{
struct Client *target_p;
rb_dlink_node *ptr;
unsigned int hashv;
s_assert(name != NULL);
if(EmptyString(name))
return NULL;
@ -383,17 +359,7 @@ find_client(const char *name)
if(IsDigit(*name))
return (find_id(name));
hashv = hash_nick(name);
RB_DLINK_FOREACH(ptr, clientTable[hashv].head)
{
target_p = ptr->data;
if(irccmp(name, target_p->name) == 0)
return target_p;
}
return NULL;
return irc_radixtree_retrieve(client_name_tree, name);
}
/* find_named_client()
@ -403,25 +369,11 @@ find_client(const char *name)
struct Client *
find_named_client(const char *name)
{
struct Client *target_p;
rb_dlink_node *ptr;
unsigned int hashv;
s_assert(name != NULL);
if(EmptyString(name))
return NULL;
hashv = hash_nick(name);
RB_DLINK_FOREACH(ptr, clientTable[hashv].head)
{
target_p = ptr->data;
if(irccmp(name, target_p->name) == 0)
return target_p;
}
return NULL;
return irc_radixtree_retrieve(client_name_tree, name);
}
/* find_server()
@ -432,8 +384,6 @@ struct Client *
find_server(struct Client *source_p, const char *name)
{
struct Client *target_p;
rb_dlink_node *ptr;
unsigned int hashv;
if(EmptyString(name))
return NULL;
@ -445,15 +395,11 @@ find_server(struct Client *source_p, const char *name)
return(target_p);
}
hashv = hash_nick(name);
RB_DLINK_FOREACH(ptr, clientTable[hashv].head)
target_p = irc_radixtree_retrieve(client_name_tree, name);
if (target_p != NULL)
{
target_p = ptr->data;
if((IsServer(target_p) || IsMe(target_p)) &&
irccmp(name, target_p->name) == 0)
return target_p;
if(IsServer(target_p) || IsMe(target_p))
return target_p;
}
return NULL;
@ -722,7 +668,5 @@ hash_stats(struct Client *source_p)
{
count_hash(source_p, channelTable, CH_MAX, "Channel");
sendto_one_numeric(source_p, RPL_STATSDEBUG, "B :--");
count_hash(source_p, clientTable, U_MAX, "Client");
sendto_one_numeric(source_p, RPL_STATSDEBUG, "B :--");
count_hash(source_p, hostTable, HOST_MAX, "Hostname");
}