/* LibMemcached
- * Copyright (C) 2006-2009 Brian Aker
+ * Copyright (C) 2006-2009 Brian Aker
* All rights reserved.
*
* Use and distribution licensed under the BSD license. See
size_t number_of_keys,
bool mget_mode)
{
- uint32_t x;
memcached_return_t rc= MEMCACHED_NOTFOUND;
const char *get_command= "get ";
uint8_t get_command_length= 4;
{
if (ptr->flags.verify_key && (memcached_key_test((const char * const *)&master_key, &master_key_length, 1) == MEMCACHED_BAD_KEY_PROVIDED))
return MEMCACHED_BAD_KEY_PROVIDED;
- master_server_key= memcached_generate_hash(ptr, master_key, master_key_length);
+ master_server_key= memcached_generate_hash_with_redistribution(ptr, master_key, master_key_length);
is_master_key_set= true;
}
It might be optimum to bounce the connection if count > some number.
*/
- for (x= 0; x < memcached_server_count(ptr); x++)
+ for (uint32_t x= 0; x < memcached_server_count(ptr); x++)
{
- memcached_server_instance_st *instance=
+ memcached_server_write_instance_st instance=
memcached_server_instance_fetch(ptr, x);
if (memcached_server_response_count(instance))
}
if (ptr->flags.binary_protocol)
+ {
return binary_mget_by_key(ptr, master_server_key, is_master_key_set, keys,
key_length, number_of_keys, mget_mode);
+ }
if (ptr->flags.support_cas)
{
If a server fails we warn about errors and start all over with sending keys
to the server.
*/
- for (x= 0; x < number_of_keys; x++)
+ for (uint32_t x= 0; x < number_of_keys; x++)
{
- memcached_server_instance_st *instance;
+ memcached_server_write_instance_st instance;
uint32_t server_key;
if (is_master_key_set)
}
else
{
- server_key= memcached_generate_hash(ptr, keys[x], key_length[x]);
+ server_key= memcached_generate_hash_with_redistribution(ptr, keys[x], key_length[x]);
}
instance= memcached_server_instance_fetch(ptr, server_key);
+ struct libmemcached_io_vector_st vector[]=
+ {
+ { .length= get_command_length, .buffer= get_command },
+ { .length= ptr->prefix_key_length, .buffer= ptr->prefix_key },
+ { .length= key_length[x], .buffer= keys[x] },
+ { .length= 1, .buffer= " " }
+ };
+
+
if (memcached_server_response_count(instance) == 0)
{
rc= memcached_connect(instance);
if (rc != MEMCACHED_SUCCESS)
continue;
- if ((memcached_io_write(instance, get_command, get_command_length, false)) == -1)
+ if ((memcached_io_writev(instance, vector, 4, false)) == -1)
{
rc= MEMCACHED_SOME_ERRORS;
continue;
memcached_server_response_increment(instance);
WATCHPOINT_ASSERT(instance->cursor_active == 1);
}
-
- /* Only called when we have a prefix key */
- if (ptr->prefix_key_length)
+ else
{
- if ((memcached_io_write(instance, ptr->prefix_key, ptr->prefix_key_length, false)) == -1)
+ if ((memcached_io_writev(instance, (vector + 1), 3, false)) == -1)
{
memcached_server_response_reset(instance);
rc= MEMCACHED_SOME_ERRORS;
continue;
}
}
-
- if ((memcached_io_write(instance, keys[x], key_length[x], false)) == -1)
- {
- memcached_server_response_reset(instance);
- rc= MEMCACHED_SOME_ERRORS;
- continue;
- }
-
- if ((memcached_io_write(instance, " ", 1, false)) == -1)
- {
- memcached_server_response_reset(instance);
- rc= MEMCACHED_SOME_ERRORS;
- continue;
- }
}
/*
Should we muddle on if some servers are dead?
*/
- for (x= 0; x < memcached_server_count(ptr); x++)
+ for (uint32_t x= 0; x < memcached_server_count(ptr); x++)
{
- memcached_server_instance_st *instance=
+ memcached_server_write_instance_st instance=
memcached_server_instance_fetch(ptr, x);
if (memcached_server_response_count(instance))
size_t number_of_keys, bool mget_mode)
{
memcached_return_t rc= MEMCACHED_NOTFOUND;
- uint32_t x;
int flush= number_of_keys == 1;
If a server fails we warn about errors and start all over with sending keys
to the server.
*/
- for (x= 0; x < number_of_keys; x++)
+ for (uint32_t x= 0; x < number_of_keys; ++x)
{
uint32_t server_key;
- memcached_server_instance_st *instance;
+ memcached_server_write_instance_st instance;
if (is_master_key_set)
{
}
else
{
- server_key= memcached_generate_hash(ptr, keys[x], key_length[x]);
+ server_key= memcached_generate_hash_with_redistribution(ptr, keys[x], key_length[x]);
}
instance= memcached_server_instance_fetch(ptr, server_key);
return vk;
}
- request.message.header.request.keylen= htons((uint16_t)key_length[x]);
+ request.message.header.request.keylen= htons((uint16_t)(key_length[x] + ptr->prefix_key_length));
request.message.header.request.datatype= PROTOCOL_BINARY_RAW_BYTES;
- request.message.header.request.bodylen= htonl((uint32_t) key_length[x]);
+ request.message.header.request.bodylen= htonl((uint32_t)( key_length[x] + ptr->prefix_key_length));
- if ((memcached_io_write(instance, request.bytes,
- sizeof(request.bytes), false) == -1) ||
- (memcached_io_write(instance, keys[x],
- key_length[x], flush) == -1))
+ struct libmemcached_io_vector_st vector[]=
+ {
+ { .length= sizeof(request.bytes), .buffer= request.bytes },
+ { .length= ptr->prefix_key_length, .buffer= ptr->prefix_key },
+ { .length= key_length[x], .buffer= keys[x] }
+ };
+
+ if (memcached_io_writev(instance, vector, 3, flush) == -1)
{
memcached_server_response_reset(instance);
rc= MEMCACHED_SOME_ERRORS;
/* We just want one pending response per server */
memcached_server_response_reset(instance);
memcached_server_response_increment(instance);
- if ((x > 0 && x == ptr->io_key_prefetch) &&
- memcached_flush_buffers(ptr) != MEMCACHED_SUCCESS)
+ if ((x > 0 && x == ptr->io_key_prefetch) && memcached_flush_buffers(ptr) != MEMCACHED_SUCCESS)
+ {
rc= MEMCACHED_SOME_ERRORS;
+ }
}
if (mget_mode)
request.message.header.request.opcode= PROTOCOL_BINARY_CMD_NOOP;
request.message.header.request.datatype= PROTOCOL_BINARY_RAW_BYTES;
- for (x= 0; x < memcached_server_count(ptr); x++)
+ for (uint32_t x= 0; x < memcached_server_count(ptr); ++x)
{
- memcached_server_instance_st *instance=
+ memcached_server_write_instance_st instance=
memcached_server_instance_fetch(ptr, x);
if (memcached_server_response_count(instance))
size_t number_of_keys)
{
memcached_return_t rc= MEMCACHED_NOTFOUND;
- uint32_t x, start= 0;
+ uint32_t start= 0;
uint64_t randomize_read= memcached_behavior_get(ptr, MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ);
if (randomize_read)
{
bool success= true;
- for (x= 0; x < number_of_keys; ++x)
+ for (uint32_t x= 0; x < number_of_keys; ++x)
{
- memcached_server_instance_st *instance;
+ memcached_server_write_instance_st instance;
if (hash[x] == memcached_server_count(ptr))
continue; /* Already successfully sent */
.message.header.request= {
.magic= PROTOCOL_BINARY_REQ,
.opcode= PROTOCOL_BINARY_CMD_GETK,
- .keylen= htons((uint16_t)key_length[x]),
+ .keylen= htons((uint16_t)(key_length[x] + ptr->prefix_key_length)),
.datatype= PROTOCOL_BINARY_RAW_BYTES,
- .bodylen= htonl((uint32_t)key_length[x])
+ .bodylen= htonl((uint32_t)(key_length[x] + ptr->prefix_key_length))
}
};
* that we might have processed some of the responses etc. For now,
* just make sure we work _correctly_
*/
- if ((memcached_io_write(instance, request.bytes,
- sizeof(request.bytes), false) == -1) ||
- (memcached_io_write(instance, keys[x],
- key_length[x], true) == -1))
+ struct libmemcached_io_vector_st vector[]=
+ {
+ { .length= sizeof(request.bytes), .buffer= request.bytes },
+ { .length= ptr->prefix_key_length, .buffer= ptr->prefix_key },
+ { .length= key_length[x], .buffer= keys[x] }
+ };
+
+ if (memcached_io_writev(instance, vector, 3, true) == -1)
{
memcached_io_reset(instance);
dead_servers[server]= true;
}
if (is_master_key_set)
+ {
for (size_t x= 0; x < number_of_keys; x++)
+ {
hash[x]= master_server_key;
+ }
+ }
else
+ {
for (size_t x= 0; x < number_of_keys; x++)
- hash[x]= memcached_generate_hash(ptr, keys[x], key_length[x]);
+ {
+ hash[x]= memcached_generate_hash_with_redistribution(ptr, keys[x], key_length[x]);
+ }
+ }
rc= replication_binary_mget(ptr, hash, dead_servers, keys,
key_length, number_of_keys);
projects / m6w6 / libmemcached / blobdiff