#include <sys/time.h>
/* Protoypes (static) */
-static memcached_return_t server_add(memcached_st *ptr, const char *hostname,
- in_port_t port,
- uint32_t weight,
- memcached_connection_t type);
-
static memcached_return_t update_continuum(memcached_st *ptr);
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;
- return_value= strcmp(a->hostname, b->hostname);
+ int return_value= strcmp(a->hostname, b->hostname);
if (return_value == 0)
{
- return_value= (int) (a->port - b->port);
+ return_value= int(a->port() - b->port());
}
return return_value;
{
if (memcached_server_count(ptr))
{
- memcached_server_write_instance_st instance;
-
- 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);
+ qsort(memcached_instance_list(ptr), memcached_server_count(ptr), sizeof(org::libmemcached::Instance), compare_servers);
}
}
memcached_return_t run_distribution(memcached_st *ptr)
{
if (ptr->flags.use_sort_hosts)
+ {
sort_hosts(ptr);
+ }
switch (ptr->distribution)
{
case MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA_SPY:
case MEMCACHED_DISTRIBUTION_CONSISTENT_WEIGHTED:
return update_continuum(ptr);
+
case MEMCACHED_DISTRIBUTION_VIRTUAL_BUCKET:
case MEMCACHED_DISTRIBUTION_MODULA:
break;
+
case MEMCACHED_DISTRIBUTION_RANDOM:
srandom((uint32_t) time(NULL));
break;
+
case MEMCACHED_DISTRIBUTION_CONSISTENT_MAX:
default:
- WATCHPOINT_ASSERT(0); /* We have added a distribution without extending the logic */
+ assert_msg(0, "Invalid distribution type passed to run_distribution()");
}
return MEMCACHED_SUCCESS;
/* Why 153? Hmmm... */
WATCHPOINT_ASSERT(ct1->value != 153);
if (ct1->value == ct2->value)
+ {
return 0;
+ }
else if (ct1->value > ct2->value)
+ {
return 1;
+ }
else
+ {
return -1;
+ }
}
static memcached_return_t update_continuum(memcached_st *ptr)
{
uint32_t continuum_index= 0;
- memcached_server_st *list;
uint32_t pointer_counter= 0;
uint32_t pointer_per_server= MEMCACHED_POINTS_PER_SERVER;
uint32_t pointer_per_hash= 1;
return memcached_set_errno(*ptr, errno, MEMCACHED_AT);
}
- list= memcached_server_list(ptr);
+ org::libmemcached::Instance* list= memcached_instance_list(ptr);
/* count live servers (those without a retry delay set) */
bool is_auto_ejecting= _is_auto_eject_host(ptr);
}
else
{
- if (ptr->ketama.next_distribution_rebuild == 0 || list[host_index].next_retry < ptr->ketama.next_distribution_rebuild)
+ if (ptr->ketama.next_distribution_rebuild == 0 or list[host_index].next_retry < ptr->ketama.next_distribution_rebuild)
{
ptr->ketama.next_distribution_rebuild= list[host_index].next_retry;
}
live_servers= memcached_server_count(ptr);
}
- uint64_t is_ketama_weighted= memcached_behavior_get(ptr, MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED);
- uint32_t points_per_server= (uint32_t) (is_ketama_weighted ? MEMCACHED_POINTS_PER_SERVER_KETAMA : MEMCACHED_POINTS_PER_SERVER);
+ uint32_t points_per_server= (uint32_t) (memcached_is_weighted_ketama(ptr) ? MEMCACHED_POINTS_PER_SERVER_KETAMA : MEMCACHED_POINTS_PER_SERVER);
- if (not live_servers)
+ if (live_servers == 0)
{
return MEMCACHED_SUCCESS;
}
{
memcached_continuum_item_st *new_ptr;
- new_ptr= static_cast<memcached_continuum_item_st*>(libmemcached_realloc(ptr, ptr->ketama.continuum,
- sizeof(memcached_continuum_item_st) * (live_servers + MEMCACHED_CONTINUUM_ADDITION) * points_per_server));
+ new_ptr= libmemcached_xrealloc(ptr, ptr->ketama.continuum, (live_servers + MEMCACHED_CONTINUUM_ADDITION) * points_per_server, memcached_continuum_item_st);
if (new_ptr == 0)
+ {
return MEMCACHED_MEMORY_ALLOCATION_FAILURE;
+ }
ptr->ketama.continuum= new_ptr;
ptr->ketama.continuum_count= live_servers + MEMCACHED_CONTINUUM_ADDITION;
}
uint64_t total_weight= 0;
- if (is_ketama_weighted)
+ if (memcached_is_weighted_ketama(ptr))
{
for (uint32_t host_index = 0; host_index < memcached_server_count(ptr); ++host_index)
{
- if (! is_auto_ejecting || list[host_index].next_retry <= now.tv_sec)
+ if (is_auto_ejecting == false or list[host_index].next_retry <= now.tv_sec)
{
total_weight += list[host_index].weight;
}
for (uint32_t host_index= 0; host_index < memcached_server_count(ptr); ++host_index)
{
- if (is_auto_ejecting && list[host_index].next_retry > now.tv_sec)
+ if (is_auto_ejecting and list[host_index].next_retry > now.tv_sec)
+ {
continue;
+ }
- if (is_ketama_weighted)
+ if (memcached_is_weighted_ketama(ptr))
{
- float pct = (float)list[host_index].weight / (float)total_weight;
- pointer_per_server= (uint32_t) ((floorf((float) (pct * MEMCACHED_POINTS_PER_SERVER_KETAMA / 4 * (float)live_servers + 0.0000000001))) * 4);
+ float pct= (float)list[host_index].weight / (float)total_weight;
+ pointer_per_server= (uint32_t) ((::floor((float) (pct * MEMCACHED_POINTS_PER_SERVER_KETAMA / 4 * (float)live_servers + 0.0000000001))) * 4);
pointer_per_hash= 4;
-#ifdef DEBUG
- printf("ketama_weighted:%s|%d|%llu|%u\n",
- list[host_index].hostname,
- list[host_index].port,
- (unsigned long long)list[host_index].weight,
- pointer_per_server);
-#endif
+ if (DEBUG)
+ {
+ printf("ketama_weighted:%s|%d|%llu|%u\n",
+ list[host_index].hostname,
+ list[host_index].port(),
+ (unsigned long long)list[host_index].weight,
+ pointer_per_server);
+ }
}
pointer_index < pointer_per_server / pointer_per_hash;
pointer_index++)
{
- char sort_host[MEMCACHED_MAX_HOST_SORT_LENGTH]= "";
+ char sort_host[1 +MEMCACHED_NI_MAXHOST +1 +MEMCACHED_NI_MAXSERV +1 + MEMCACHED_NI_MAXSERV ]= "";
int sort_host_length;
// Spymemcached ketema key format is: hostname/ip:port-index
// If hostname is not available then: /ip:port-index
- sort_host_length= snprintf(sort_host, MEMCACHED_MAX_HOST_SORT_LENGTH,
+ sort_host_length= snprintf(sort_host, sizeof(sort_host),
"/%s:%u-%u",
list[host_index].hostname,
- (uint32_t)list[host_index].port,
+ (uint32_t)list[host_index].port(),
pointer_index);
- if (sort_host_length >= MEMCACHED_MAX_HOST_SORT_LENGTH || sort_host_length < 0)
+ if (size_t(sort_host_length) >= sizeof(sort_host) or sort_host_length < 0)
{
- return MEMCACHED_FAILURE;
+ return memcached_set_error(*ptr, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT,
+ memcached_literal_param("snprintf(sizeof(sort_host))"));
}
-#ifdef DEBUG
- printf("update_continuum: key is %s\n", sort_host);
-#endif
- WATCHPOINT_ASSERT(sort_host_length);
+ if (DEBUG)
+ {
+ fprintf(stdout, "update_continuum: key is %s\n", sort_host);
+ }
- if (is_ketama_weighted)
+ if (memcached_is_weighted_ketama(ptr))
{
for (uint32_t x= 0; x < pointer_per_hash; x++)
{
pointer_index <= pointer_per_server / pointer_per_hash;
pointer_index++)
{
- char sort_host[MEMCACHED_MAX_HOST_SORT_LENGTH]= "";
+ char sort_host[MEMCACHED_NI_MAXHOST +1 +MEMCACHED_NI_MAXSERV +1 +MEMCACHED_NI_MAXSERV]= "";
int sort_host_length;
- if (list[host_index].port == MEMCACHED_DEFAULT_PORT)
+ if (list[host_index].port() == MEMCACHED_DEFAULT_PORT)
{
- sort_host_length= snprintf(sort_host, MEMCACHED_MAX_HOST_SORT_LENGTH,
+ sort_host_length= snprintf(sort_host, sizeof(sort_host),
"%s-%u",
list[host_index].hostname,
pointer_index - 1);
}
else
{
- sort_host_length= snprintf(sort_host, MEMCACHED_MAX_HOST_SORT_LENGTH,
+ sort_host_length= snprintf(sort_host, sizeof(sort_host),
"%s:%u-%u",
list[host_index].hostname,
- (uint32_t)list[host_index].port,
+ (uint32_t)list[host_index].port(),
pointer_index - 1);
}
- if (sort_host_length >= MEMCACHED_MAX_HOST_SORT_LENGTH || sort_host_length < 0)
+ if (size_t(sort_host_length) >= sizeof(sort_host) or sort_host_length < 0)
{
- return MEMCACHED_FAILURE;
+ return memcached_set_error(*ptr, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT,
+ memcached_literal_param("snprintf(sizeof(sort_host)))"));
}
- WATCHPOINT_ASSERT(sort_host_length);
-
- if (is_ketama_weighted)
+ if (memcached_is_weighted_ketama(ptr))
{
for (uint32_t x = 0; x < pointer_per_hash; x++)
{
ptr->ketama.continuum_points_counter= pointer_counter;
qsort(ptr->ketama.continuum, ptr->ketama.continuum_points_counter, sizeof(memcached_continuum_item_st), continuum_item_cmp);
-#ifdef DEBUG
- for (uint32_t pointer_index= 0; memcached_server_count(ptr) && pointer_index < ((live_servers * MEMCACHED_POINTS_PER_SERVER) - 1); pointer_index++)
+ if (DEBUG)
{
- WATCHPOINT_ASSERT(ptr->ketama.continuum[pointer_index].value <= ptr->ketama.continuum[pointer_index + 1].value);
+ for (uint32_t pointer_index= 0; memcached_server_count(ptr) && pointer_index < ((live_servers * MEMCACHED_POINTS_PER_SERVER) - 1); pointer_index++)
+ {
+ WATCHPOINT_ASSERT(ptr->ketama.continuum[pointer_index].value <= ptr->ketama.continuum[pointer_index + 1].value);
+ }
}
-#endif
return MEMCACHED_SUCCESS;
}
+static memcached_return_t server_add(memcached_st *ptr,
+ const memcached_string_t& hostname,
+ in_port_t port,
+ uint32_t weight,
+ memcached_connection_t type)
+{
+ assert_msg(ptr, "Programmer mistake, somehow server_add() was passed a NULL memcached_st");
+
+ if (ptr->number_of_hosts)
+ {
+ assert(memcached_instance_list(ptr));
+ }
+
+ if (memcached_instance_list(ptr))
+ {
+ assert(ptr->number_of_hosts);
+ }
+
+ uint32_t host_list_size= ptr->number_of_hosts +1;
+ org::libmemcached::Instance* new_host_list= libmemcached_xrealloc(ptr, memcached_instance_list(ptr), host_list_size, org::libmemcached::Instance);
+
+ if (new_host_list == NULL)
+ {
+ return memcached_set_error(*ptr, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT);
+ }
+
+ memcached_instance_set(ptr, new_host_list, host_list_size);
+ assert(ptr->number_of_hosts == host_list_size);
+
+ /* TODO: Check return type */
+ org::libmemcached::Instance* instance= memcached_instance_fetch(ptr, memcached_server_count(ptr) -1);
+
+ if (__instance_create_with(ptr, instance, hostname, port, weight, type) == NULL)
+ {
+ return memcached_set_error(*ptr, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT);
+ }
+
+ if (weight > 1)
+ {
+ if (memcached_is_consistent_distribution(ptr))
+ {
+ memcached_set_weighted_ketama(ptr, true);
+ }
+ }
+
+ return run_distribution(ptr);
+}
+
memcached_return_t memcached_server_push(memcached_st *ptr, const memcached_server_list_st list)
{
- if (not list)
+ if (list == NULL)
+ {
return MEMCACHED_SUCCESS;
+ }
+ uint32_t original_host_size= memcached_server_count(ptr);
uint32_t count= memcached_server_list_count(list);
+ uint32_t host_list_size= count +original_host_size;
- memcached_server_st *new_host_list;
- new_host_list= static_cast<memcached_server_st*>(libmemcached_realloc(ptr, memcached_server_list(ptr),
- sizeof(memcached_server_st) * (count + memcached_server_count(ptr))));
+ org::libmemcached::Instance* new_host_list= libmemcached_xrealloc(ptr, memcached_instance_list(ptr), host_list_size, org::libmemcached::Instance);
- if (not new_host_list)
+ if (new_host_list == NULL)
+ {
return MEMCACHED_MEMORY_ALLOCATION_FAILURE;
+ }
- memcached_server_list_set(ptr, new_host_list);
+ memcached_instance_set(ptr, new_host_list, host_list_size);
- for (uint32_t x= 0; x < count; x++)
+ ptr->state.is_parsing= true;
+ for (uint32_t x= 0; x < count; ++x, ++original_host_size)
{
- memcached_server_write_instance_st instance;
-
- if ((ptr->flags.use_udp && list[x].type != MEMCACHED_CONNECTION_UDP)
- || ((list[x].type == MEMCACHED_CONNECTION_UDP)
- && ! (ptr->flags.use_udp)) )
- {
- return MEMCACHED_INVALID_HOST_PROTOCOL;
- }
-
WATCHPOINT_ASSERT(list[x].hostname[0] != 0);
- instance= memcached_server_instance_fetch(ptr, memcached_server_count(ptr));
+ // We have extended the array, and now we will find it, and use it.
+ org::libmemcached::Instance* instance= memcached_instance_fetch(ptr, original_host_size);
WATCHPOINT_ASSERT(instance);
- /* TODO check return type */
- instance= memcached_server_create_with(ptr, instance, list[x].hostname,
- list[x].port, list[x].weight, list[x].type);
- if (not instance)
+ memcached_string_t hostname= { memcached_string_make_from_cstr(list[x].hostname) };
+ if (__instance_create_with(ptr, instance,
+ hostname,
+ list[x].port, list[x].weight, list[x].type) == NULL)
{
+ ptr->state.is_parsing= false;
return memcached_set_error(*ptr, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT);
}
if (list[x].weight > 1)
{
- ptr->ketama.weighted= true;
+ memcached_set_weighted_ketama(ptr, true);
}
+ }
+ ptr->state.is_parsing= false;
+
+ return run_distribution(ptr);
+}
- ptr->number_of_hosts++;
+memcached_return_t memcached_instance_push(memcached_st *ptr, const struct org::libmemcached::Instance* list, uint32_t number_of_hosts)
+{
+ if (list == NULL)
+ {
+ return MEMCACHED_SUCCESS;
}
- // Provides backwards compatibility with server list.
+ uint32_t original_host_size= memcached_server_count(ptr);
+ uint32_t host_list_size= number_of_hosts +original_host_size;
+ org::libmemcached::Instance* new_host_list= libmemcached_xrealloc(ptr, memcached_instance_list(ptr), host_list_size, org::libmemcached::Instance);
+
+ if (new_host_list == NULL)
{
- memcached_server_write_instance_st instance;
- instance= memcached_server_instance_fetch(ptr, 0);
- instance->number_of_hosts= memcached_server_count(ptr);
+ return MEMCACHED_MEMORY_ALLOCATION_FAILURE;
}
+ memcached_instance_set(ptr, new_host_list, host_list_size);
+
+ // We don't bother with lookups for this operation
+ ptr->state.is_parsing= true;
+
+ // We use original_host_size since size will now point to the first new
+ // instance allocated.
+ for (uint32_t x= 0; x < number_of_hosts; ++x, ++original_host_size)
+ {
+ WATCHPOINT_ASSERT(list[x].hostname[0] != 0);
+
+ // We have extended the array, and now we will find it, and use it.
+ org::libmemcached::Instance* instance= memcached_instance_fetch(ptr, original_host_size);
+ WATCHPOINT_ASSERT(instance);
+
+ memcached_string_t hostname= { memcached_string_make_from_cstr(list[x].hostname) };
+ if (__instance_create_with(ptr, instance,
+ hostname,
+ list[x].port(), list[x].weight, list[x].type) == NULL)
+ {
+ ptr->state.is_parsing= false;
+ return memcached_set_error(*ptr, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT);
+ }
+
+ if (list[x].weight > 1)
+ {
+ memcached_set_weighted_ketama(ptr, true);
+ }
+ }
+ ptr->state.is_parsing= false;
+
return run_distribution(ptr);
}
const char *filename,
uint32_t weight)
{
- if (! filename)
+ if (ptr == NULL)
+ {
return MEMCACHED_FAILURE;
+ }
+
+ memcached_string_t _filename= { memcached_string_make_from_cstr(filename) };
+ if (memcached_is_valid_servername(_filename) == false)
+ {
+ memcached_set_error(*ptr, MEMCACHED_INVALID_ARGUMENTS, MEMCACHED_AT, memcached_literal_param("Invalid filename for socket provided"));
+ }
- return server_add(ptr, filename, 0, weight, MEMCACHED_CONNECTION_UNIX_SOCKET);
+ return server_add(ptr, _filename, 0, weight, MEMCACHED_CONNECTION_UNIX_SOCKET);
}
memcached_return_t memcached_server_add_udp(memcached_st *ptr,
}
memcached_return_t memcached_server_add_udp_with_weight(memcached_st *ptr,
- const char *hostname,
- in_port_t port,
- uint32_t weight)
+ const char *,
+ in_port_t,
+ uint32_t)
{
- if (not port)
- port= MEMCACHED_DEFAULT_PORT;
-
- if (not hostname)
- hostname= "localhost";
+ if (ptr == NULL)
+ {
+ return MEMCACHED_INVALID_ARGUMENTS;
+ }
- return server_add(ptr, hostname, port, weight, MEMCACHED_CONNECTION_UDP);
+ return memcached_set_error(*ptr, MEMCACHED_DEPRECATED, MEMCACHED_AT);
}
memcached_return_t memcached_server_add(memcached_st *ptr,
in_port_t port,
uint32_t weight)
{
- if (not port)
- port= MEMCACHED_DEFAULT_PORT;
-
- if (not hostname)
- hostname= "localhost";
-
- return server_add(ptr, hostname, port, weight, MEMCACHED_CONNECTION_TCP);
-}
-
-static memcached_return_t server_add(memcached_st *ptr, const char *hostname,
- in_port_t port,
- uint32_t weight,
- memcached_connection_t type)
-{
-
- if ( (ptr->flags.use_udp and type != MEMCACHED_CONNECTION_UDP)
- or ( (type == MEMCACHED_CONNECTION_UDP) and (not ptr->flags.use_udp) ) )
+ if (ptr == NULL)
{
- return MEMCACHED_INVALID_HOST_PROTOCOL;
+ return MEMCACHED_INVALID_ARGUMENTS;
}
- memcached_server_st *new_host_list= static_cast<memcached_server_st*>(libmemcached_realloc(ptr, memcached_server_list(ptr),
- sizeof(memcached_server_st) * (ptr->number_of_hosts + 1)));
-
- if (not new_host_list)
- return MEMCACHED_MEMORY_ALLOCATION_FAILURE;
-
- memcached_server_list_set(ptr, new_host_list);
-
- /* TODO: Check return type */
- memcached_server_write_instance_st instance= memcached_server_instance_fetch(ptr, memcached_server_count(ptr));
-
- (void)memcached_server_create_with(ptr, instance, hostname, port, weight, type);
+ if (port == 0)
+ {
+ port= MEMCACHED_DEFAULT_PORT;
+ }
- if (weight > 1)
+ size_t hostname_length= hostname ? strlen(hostname) : 0;
+ if (hostname_length == 0)
{
- ptr->ketama.weighted= true;
+ hostname= "localhost";
+ hostname_length= memcached_literal_param_size("localhost");
}
- ptr->number_of_hosts++;
+ memcached_string_t _hostname= { hostname, hostname_length };
- instance= memcached_server_instance_fetch(ptr, 0);
- memcached_servers_set_count(instance, memcached_server_count(ptr));
+ if (memcached_is_valid_servername(_hostname) == false)
+ {
+ return memcached_set_error(*ptr, MEMCACHED_INVALID_ARGUMENTS, MEMCACHED_AT, memcached_literal_param("Invalid hostname provided"));
+ }
- return run_distribution(ptr);
+ return server_add(ptr, _hostname, port, weight, _hostname.c_str[0] == '/' ? MEMCACHED_CONNECTION_UNIX_SOCKET : MEMCACHED_CONNECTION_TCP);
}
memcached_return_t memcached_server_add_parsed(memcached_st *ptr,
memcpy(buffer, hostname, hostname_length);
buffer[hostname_length]= 0;
- return server_add(ptr, buffer,
+ memcached_string_t _hostname= { buffer, hostname_length };
+
+ return server_add(ptr, _hostname,
port,
weight,
MEMCACHED_CONNECTION_TCP);
projects / awesomized / libmemcached / blobdiff