uint64_t *value)
{
size_t send_length;
- memcached_return rc;
char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
unsigned int server_key;
+ uint8_t replicas= 0;
+ memcached_return rc[MEMCACHED_MAX_REPLICAS];
if (key_length == 0)
return MEMCACHED_NO_KEY_PROVIDED;
if (ptr->hosts == NULL || ptr->number_of_hosts == 0)
return MEMCACHED_NO_SERVERS;
- if (key_test(&key, &key_length, 1) == MEMCACHED_BAD_KEY_PROVIDED)
+ if ((ptr->flags & MEM_VERIFY_KEY) && (memcachd_key_test(&key, &key_length, 1) == MEMCACHED_BAD_KEY_PROVIDED))
return MEMCACHED_BAD_KEY_PROVIDED;
server_key= memcached_generate_hash(ptr, key, key_length);
if (send_length >= MEMCACHED_DEFAULT_COMMAND_SIZE)
return MEMCACHED_WRITE_FAILURE;
- rc= memcached_do(&ptr->hosts[server_key], buffer, send_length, 1);
- if (rc != MEMCACHED_SUCCESS)
- return rc;
-
- rc= memcached_response(&ptr->hosts[server_key], buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, NULL);
-
- /*
- So why recheck responce? Because the protocol is brain dead :)
- The number returned might end up equaling one of the string
- values. Less chance of a mistake with strncmp() so we will
- use it. We still called memcached_response() though since it
- worked its magic for non-blocking IO.
- */
- if (!strncmp(buffer, "ERROR\r\n", 7))
+ do
{
- *value= 0;
- rc= MEMCACHED_PROTOCOL_ERROR;
- }
- else if (!strncmp(buffer, "NOT_FOUND\r\n", 11))
+ rc[replicas]= memcached_do(&ptr->hosts[server_key], buffer, send_length, 1);
+ if (rc[replicas] != MEMCACHED_SUCCESS)
+ goto error;
+
+ rc[replicas]= memcached_response(&ptr->hosts[server_key], buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, NULL);
+
+ /*
+ So why recheck responce? Because the protocol is brain dead :)
+ The number returned might end up equaling one of the string
+ values. Less chance of a mistake with strncmp() so we will
+ use it. We still called memcached_response() though since it
+ worked its magic for non-blocking IO.
+ */
+ if (!strncmp(buffer, "ERROR\r\n", 7))
+ {
+ *value= 0;
+ rc[replicas]= MEMCACHED_PROTOCOL_ERROR;
+ }
+ else if (!strncmp(buffer, "NOT_FOUND\r\n", 11))
+ {
+ *value= 0;
+ rc[replicas]= MEMCACHED_NOTFOUND;
+ }
+ else
+ {
+ *value= (uint64_t)strtoll(buffer, (char **)NULL, 10);
+ rc[replicas]= MEMCACHED_SUCCESS;
+ }
+ /* On error we just jump to the next potential server */
+error:
+ if (replicas > 1 && ptr->distribution == MEMCACHED_DISTRIBUTION_CONSISTENT)
+ {
+ if (server_key == (ptr->number_of_hosts - 1))
+ server_key= 0;
+ else
+ server_key++;
+ }
+ } while ((++replicas) < ptr->number_of_replicas);
+
+ /* As long as one object gets stored, we count this as a success */
+ while (replicas--)
{
- *value= 0;
- rc= MEMCACHED_NOTFOUND;
- }
- else
- {
- *value= (uint64_t)strtoll(buffer, (char **)NULL, 10);
- rc= MEMCACHED_SUCCESS;
+ if (rc[replicas] == MEMCACHED_STORED)
+ return MEMCACHED_SUCCESS;
}
- return rc;
+ return rc[0];
}
memcached_return memcached_increment(memcached_st *ptr,