+/* LibMemcached
+ * Copyright (C) 2006-2010 Brian Aker
+ * All rights reserved.
+ *
+ * Use and distribution licensed under the BSD license. See
+ * the COPYING file in the parent directory for full text.
+ *
+ * Summary:
+ *
+ */
+
#include "common.h"
#include <math.h>
static int compare_servers(const void *p1, const void *p2)
{
int return_value;
- memcached_server_instance_st *a= (memcached_server_instance_st *)p1;
- memcached_server_instance_st *b= (memcached_server_instance_st *)p2;
+ memcached_server_instance_st a= (memcached_server_instance_st)p1;
+ memcached_server_instance_st b= (memcached_server_instance_st)p2;
return_value= strcmp(a->hostname, b->hostname);
{
if (memcached_server_count(ptr))
{
- memcached_server_instance_st *instance;
+ memcached_server_write_instance_st instance;
- qsort(memcached_server_list(ptr), memcached_server_count(ptr), sizeof(memcached_server_instance_st), compare_servers);
+ qsort(memcached_server_list(ptr), memcached_server_count(ptr), sizeof(memcached_server_st), compare_servers);
instance= memcached_server_instance_fetch(ptr, 0);
instance->number_of_hosts= memcached_server_count(ptr);
}
return MEMCACHED_SUCCESS;
}
-static uint32_t ketama_server_hash(const char *key, unsigned int key_length, uint32_t alignment)
+static uint32_t ketama_server_hash(const char *key, size_t key_length, uint32_t alignment)
{
unsigned char results[16];
uint32_t host_index;
uint32_t continuum_index= 0;
uint32_t value;
- memcached_server_instance_st *list;
+ memcached_server_st *list;
uint32_t pointer_index;
uint32_t pointer_counter= 0;
uint32_t pointer_per_server= MEMCACHED_POINTS_PER_SERVER;
list = memcached_server_list(ptr);
/* count live servers (those without a retry delay set) */
- is_auto_ejecting= memcached_behavior_get(ptr, MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS);
+ is_auto_ejecting= _is_auto_eject_host(ptr);
if (is_auto_ejecting)
{
live_servers= 0;
{
list[host_index].weight = 1;
}
- if (!is_auto_ejecting || list[host_index].next_retry <= now.tv_sec)
+ if (! is_auto_ejecting || list[host_index].next_retry <= now.tv_sec)
total_weight += list[host_index].weight;
}
}
- for (host_index = 0; host_index < memcached_server_count(ptr); ++host_index)
+ for (host_index= 0; host_index < memcached_server_count(ptr); ++host_index)
{
if (is_auto_ejecting && list[host_index].next_retry > now.tv_sec)
continue;
if (is_ketama_weighted)
{
- for (uint32_t x = 0; x < pointer_per_hash; x++)
+ for (uint32_t x= 0; x < pointer_per_hash; x++)
{
- value= ketama_server_hash(sort_host, (uint32_t) sort_host_length, x);
+ value= ketama_server_hash(sort_host, sort_host_length, x);
ptr->continuum[continuum_index].index= host_index;
ptr->continuum[continuum_index++].value= value;
}
{
for (uint32_t x = 0; x < pointer_per_hash; x++)
{
- value= ketama_server_hash(sort_host, (uint32_t) sort_host_length, (int) x);
+ value= ketama_server_hash(sort_host, sort_host_length, x);
ptr->continuum[continuum_index].index= host_index;
ptr->continuum[continuum_index++].value= value;
}
}
-memcached_return_t memcached_server_push(memcached_st *ptr, memcached_server_st *list)
+memcached_return_t memcached_server_push(memcached_st *ptr, const memcached_server_list_st list)
{
uint32_t count;
memcached_server_st *new_host_list;
if (! list)
return MEMCACHED_SUCCESS;
- count= memcached_servers_count(list);
+ count= memcached_server_list_count(list);
new_host_list= libmemcached_realloc(ptr, memcached_server_list(ptr),
- sizeof(memcached_server_instance_st) * (count + memcached_server_count(ptr)));
+ sizeof(memcached_server_st) * (count + memcached_server_count(ptr)));
if (! new_host_list)
return MEMCACHED_MEMORY_ALLOCATION_FAILURE;
for (uint32_t x= 0; x < count; x++)
{
- memcached_server_instance_st *instance;
+ memcached_server_write_instance_st instance;
if ((ptr->flags.use_udp && list[x].type != MEMCACHED_CONNECTION_UDP)
|| ((list[x].type == MEMCACHED_CONNECTION_UDP)
// Provides backwards compatibility with server list.
{
- memcached_server_instance_st *instance;
+ memcached_server_write_instance_st instance;
instance= memcached_server_instance_fetch(ptr, 0);
instance->number_of_hosts= memcached_server_count(ptr);
}
uint32_t weight,
memcached_connection_t type)
{
- memcached_server_instance_st *new_host_list;
- memcached_server_instance_st *instance;
+ memcached_server_st *new_host_list;
+ memcached_server_write_instance_st instance;
if ( (ptr->flags.use_udp && type != MEMCACHED_CONNECTION_UDP)
|| ( (type == MEMCACHED_CONNECTION_UDP) && (! ptr->flags.use_udp) ) )
return MEMCACHED_INVALID_HOST_PROTOCOL;
new_host_list= libmemcached_realloc(ptr, memcached_server_list(ptr),
- sizeof(memcached_server_instance_st) * (ptr->number_of_hosts + 1));
+ sizeof(memcached_server_st) * (ptr->number_of_hosts + 1));
if (new_host_list == NULL)
return MEMCACHED_MEMORY_ALLOCATION_FAILURE;
return run_distribution(ptr);
}
-
-/**
- @todo allow lists to query themselves even if they lack a root
-*/
-memcached_return_t memcached_server_remove(memcached_server_st *st_ptr)
-{
- uint32_t x, host_index;
- memcached_st *root= (memcached_st *)st_ptr->root;
- memcached_server_st *list;
-
- if (root == NULL)
- return MEMCACHED_FAILURE;
-
- list= memcached_server_list(root);
-
- for (x= 0, host_index= 0; x < memcached_server_count(root); x++)
- {
- if (strncmp(list[x].hostname, st_ptr->hostname, MEMCACHED_MAX_HOST_LENGTH) != 0 || list[x].port != st_ptr->port)
- {
- if (host_index != x)
- memcpy(list+host_index, list+x, sizeof(memcached_server_st));
- host_index++;
- }
- }
- root->number_of_hosts= host_index;
-
- if (st_ptr->address_info)
- {
- freeaddrinfo(st_ptr->address_info);
- st_ptr->address_info= NULL;
- }
- run_distribution(root);
-
- return MEMCACHED_SUCCESS;
-}
-
-memcached_server_st *memcached_server_list_append(memcached_server_st *ptr,
- const char *hostname, in_port_t port,
- memcached_return_t *error)
-{
- return memcached_server_list_append_with_weight(ptr, hostname, port, 0, error);
-}
-
-memcached_server_st *memcached_server_list_append_with_weight(memcached_server_st *ptr,
- const char *hostname, in_port_t port,
- uint32_t weight,
- memcached_return_t *error)
-{
- unsigned int count;
- memcached_server_instance_st *new_host_list;
-
- if (hostname == NULL || error == NULL)
- return NULL;
-
- if (! port)
- port= MEMCACHED_DEFAULT_PORT;
-
- /* Increment count for hosts */
- count= 1;
- if (ptr != NULL)
- {
- count+= memcached_servers_count(ptr);
- }
-
- new_host_list= (memcached_server_instance_st *)realloc(ptr, sizeof(memcached_server_instance_st) * count);
- if (!new_host_list)
- {
- *error= MEMCACHED_MEMORY_ALLOCATION_FAILURE;
- return NULL;
- }
-
- /* TODO: Check return type */
- memcached_server_create_with(NULL, &new_host_list[count-1], hostname, port, weight, MEMCACHED_CONNECTION_TCP);
-
- /* Backwards compatibility hack */
- memcached_servers_set_count(new_host_list, count);
-
- *error= MEMCACHED_SUCCESS;
- return new_host_list;
-}
projects / m6w6 / libmemcached / blobdiff