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ircd: hash: use an irc_radixtree for storing resv's

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This commit is contained in:
William Pitcock 2016-01-09 04:59:02 -06:00
parent 5c7c7d65c2
commit 46be39faab
6 changed files with 32 additions and 62 deletions
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6
extensions/m_sendbans.c
View file

@ -43,6 +43,7 @@
#include "hash.h"
#include "modules.h"
#include "messages.h"
#include "irc_radixtree.h"
static int mo_sendbans(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
@ -89,6 +90,7 @@ static int mo_sendbans(struct Client *client_p, struct Client *source_p, int par
int i, count;
const char *target, *mask2;
struct Client *server_p;
struct irc_radixtree_iteration_state state;
if (!IsOperRemoteBan(source_p))
{
@ -142,9 +144,8 @@ static int mo_sendbans(struct Client *client_p, struct Client *source_p, int par
target, aconf->host, aconf->passwd);
}
HASH_WALK(i, R_MAX, ptr, resvTable)
IRC_RADIXTREE_FOREACH(aconf, &state, resv_tree)
{
aconf = ptr->data;
if (aconf->hold)
continue;
sendto_match_servs(source_p, target,
@ -152,7 +153,6 @@ static int mo_sendbans(struct Client *client_p, struct Client *source_p, int par
"ENCAP %s RESV 0 %s 0 :%s",
target, aconf->host, aconf->passwd);
}
HASH_WALK_END
RB_DLINK_FOREACH(ptr, xline_conf_list.head)
{

3
include/hash.h
View file

@ -28,15 +28,16 @@
#define INCLUDED_hash_h
struct Dictionary;
struct irc_radixtree;
extern rb_dlink_list *clientTable;
extern rb_dlink_list *channelTable;
extern rb_dlink_list *idTable;
extern rb_dlink_list *resvTable;
extern rb_dlink_list *hostTable;
extern rb_dlink_list *helpTable;
extern struct Dictionary *nd_dict;
extern struct irc_radixtree *resv_tree;
/* Magic value for FNV hash functions */
#define FNV1_32_INIT 0x811c9dc5UL

57
ircd/hash.c
View file

@ -40,16 +40,18 @@
#include "s_newconf.h"
#include "s_assert.h"
#include "irc_dictionary.h"
#include "irc_radixtree.h"
rb_dlink_list *clientTable;
rb_dlink_list *channelTable;
rb_dlink_list *idTable;
rb_dlink_list *resvTable;
rb_dlink_list *hostTable;
struct Dictionary *client_connid_tree = NULL;
struct Dictionary *client_zconnid_tree = NULL;
struct irc_radixtree *resv_tree = NULL;
/*
* look in whowas.c for the missing ...[WW_MAX]; entry
*/
@ -98,10 +100,11 @@ init_hash(void)
idTable = 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);
resvTable = rb_malloc(sizeof(rb_dlink_list) * R_MAX);
client_connid_tree = irc_dictionary_create("client connid", irc_uint32cmp);
client_zconnid_tree = irc_dictionary_create("client zconnid", irc_uint32cmp);
resv_tree = irc_radixtree_create("resv", irc_radixtree_irccasecanon);
}
u_int32_t
@ -205,16 +208,6 @@ hash_hostname(const char *name)
return fnv_hash_upper_len((const unsigned char *) name, HOST_MAX_BITS, 30);
}
/* hash_resv()
*
* hashes a resv channel name, based on first 30 chars only
*/
static u_int32_t
hash_resv(const char *name)
{
return fnv_hash_upper_len((const unsigned char *) name, R_MAX_BITS, 30);
}
/* add_to_id_hash()
*
* adds an entry to the id hash table
@ -274,15 +267,12 @@ add_to_hostname_hash(const char *hostname, struct Client *client_p)
void
add_to_resv_hash(const char *name, struct ConfItem *aconf)
{
unsigned int hashv;
s_assert(!EmptyString(name));
s_assert(aconf != NULL);
if(EmptyString(name) || aconf == NULL)
return;
hashv = hash_resv(name);
rb_dlinkAddAlloc(aconf, &resvTable[hashv]);
irc_radixtree_add(resv_tree, name, aconf);
}
/* del_from_id_hash()
@ -365,16 +355,12 @@ del_from_hostname_hash(const char *hostname, struct Client *client_p)
void
del_from_resv_hash(const char *name, struct ConfItem *aconf)
{
unsigned int hashv;
s_assert(name != NULL);
s_assert(aconf != NULL);
if(EmptyString(name) || aconf == NULL)
return;
hashv = hash_resv(name);
rb_dlinkFindDestroy(aconf, &resvTable[hashv]);
irc_radixtree_delete(resv_tree, name);
}
/* find_id()
@ -621,24 +607,16 @@ struct ConfItem *
hash_find_resv(const char *name)
{
struct ConfItem *aconf;
rb_dlink_node *ptr;
unsigned int hashv;
s_assert(name != NULL);
if(EmptyString(name))
return NULL;
hashv = hash_resv(name);
RB_DLINK_FOREACH(ptr, resvTable[hashv].head)
aconf = irc_radixtree_retrieve(resv_tree, name);
if (aconf != NULL)
{
aconf = ptr->data;
if(!irccmp(name, aconf->host))
{
aconf->port++;
return aconf;
}
aconf->port++;
return aconf;
}
return NULL;
@ -648,22 +626,17 @@ void
clear_resv_hash(void)
{
struct ConfItem *aconf;
rb_dlink_node *ptr;
rb_dlink_node *next_ptr;
int i;
struct irc_radixtree_iteration_state iter;
HASH_WALK_SAFE(i, R_MAX, ptr, next_ptr, resvTable)
IRC_RADIXTREE_FOREACH(aconf, &iter, resv_tree)
{
aconf = ptr->data;
/* skip temp resvs */
if(aconf->hold)
continue;
free_conf(ptr->data);
rb_dlinkDestroy(ptr, &resvTable[i]);
irc_radixtree_delete(resv_tree, aconf->host);
free_conf(aconf);
}
HASH_WALK_END
}
void

9
ircd/s_newconf.c
View file

@ -44,6 +44,7 @@
#include "newconf.h"
#include "hash.h"
#include "irc_dictionary.h"
#include "irc_radixtree.h"
#include "s_assert.h"
#include "logger.h"
#include "dns.h"
@ -687,11 +688,10 @@ expire_temp_rxlines(void *unused)
rb_dlink_node *ptr;
rb_dlink_node *next_ptr;
int i;
struct irc_radixtree_iteration_state state;
HASH_WALK_SAFE(i, R_MAX, ptr, next_ptr, resvTable)
IRC_RADIXTREE_FOREACH(aconf, &state, resv_tree)
{
aconf = ptr->data;
if(aconf->lifetime != 0)
continue;
if(aconf->hold && aconf->hold <= rb_current_time())
@ -701,11 +701,10 @@ expire_temp_rxlines(void *unused)
"Temporary RESV for [%s] expired",
aconf->host);
irc_radixtree_delete(resv_tree, aconf->host);
free_conf(aconf);
rb_dlinkDestroy(ptr, &resvTable[i]);
}
}
HASH_WALK_END
RB_DLINK_FOREACH_SAFE(ptr, next_ptr, resv_conf_list.head)
{

9
modules/m_rehash.c
View file

@ -43,6 +43,7 @@
#include "reject.h"
#include "hash.h"
#include "cache.h"
#include "irc_radixtree.h"
static int mo_rehash(struct Client *, struct Client *, int, const char **);
static int me_rehash(struct Client *, struct Client *, int, const char **);
@ -185,6 +186,7 @@ static void
rehash_tresvs(struct Client *source_p)
{
struct ConfItem *aconf;
struct irc_radixtree_iteration_state iter;
rb_dlink_node *ptr;
rb_dlink_node *next_ptr;
int i;
@ -194,17 +196,14 @@ rehash_tresvs(struct Client *source_p)
if (!MyConnect(source_p))
remote_rehash_oper_p = source_p;
HASH_WALK_SAFE(i, R_MAX, ptr, next_ptr, resvTable)
IRC_RADIXTREE_FOREACH(aconf, &iter, resv_tree)
{
aconf = ptr->data;
if(!aconf->hold || aconf->lifetime)
continue;
irc_radixtree_delete(resv_tree, aconf->host);
free_conf(aconf);
rb_dlinkDestroy(ptr, &resvTable[i]);
}
HASH_WALK_END
RB_DLINK_FOREACH_SAFE(ptr, next_ptr, resv_conf_list.head)
{

10
modules/m_stats.c
View file

@ -831,6 +831,7 @@ static void
stats_tresv(struct Client *source_p)
{
struct ConfItem *aconf;
struct irc_radixtree_iteration_state state;
rb_dlink_node *ptr;
int i;
@ -843,15 +844,13 @@ stats_tresv(struct Client *source_p)
'q', aconf->port, aconf->host, aconf->passwd);
}
HASH_WALK(i, R_MAX, ptr, resvTable)
IRC_RADIXTREE_FOREACH(aconf, &state, resv_tree)
{
aconf = ptr->data;
if(aconf->hold)
sendto_one_numeric(source_p, RPL_STATSQLINE,
form_str(RPL_STATSQLINE),
'q', aconf->port, aconf->host, aconf->passwd);
}
HASH_WALK_END
}
@ -859,6 +858,7 @@ static void
stats_resv(struct Client *source_p)
{
struct ConfItem *aconf;
struct irc_radixtree_iteration_state state;
rb_dlink_node *ptr;
int i;
@ -871,15 +871,13 @@ stats_resv(struct Client *source_p)
'Q', aconf->port, aconf->host, aconf->passwd);
}
HASH_WALK(i, R_MAX, ptr, resvTable)
IRC_RADIXTREE_FOREACH(aconf, &state, resv_tree)
{
aconf = ptr->data;
if(!aconf->hold)
sendto_one_numeric(source_p, RPL_STATSQLINE,
form_str(RPL_STATSQLINE),
'Q', aconf->port, aconf->host, aconf->passwd);
}
HASH_WALK_END
}
static void