*
* Libmemcached library
*
- * Copyright (C) 2011 Data Differential, http://datadifferential.com/
+ * Copyright (C) 2011-2012 Data Differential, http://datadifferential.com/
* Copyright (C) 2006-2009 Brian Aker All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
{
memcached_return_t unused;
if (error == NULL)
+ {
error= &unused;
+ }
- unlikely (ptr->flags.use_udp)
+ uint64_t query_id= 0;
+ if (ptr)
{
- if (value_length)
- *value_length= 0;
-
- *error= memcached_set_error(*ptr, MEMCACHED_NOT_SUPPORTED, MEMCACHED_AT);
- return NULL;
+ query_id= ptr->query_id;
}
- uint64_t query_id= ptr->query_id;
- (void)query_id;
-
/* Request the key */
*error= memcached_mget_by_key_real(ptr, group_key, group_key_length,
(const char * const *)&key, &key_length,
1, false);
- assert_msg(ptr->query_id == query_id +1, "Programmer error, the query_id was not incremented.");
-
+ if (ptr)
+ {
+ assert_msg(ptr->query_id == query_id +1, "Programmer error, the query_id was not incremented.");
+ }
if (memcached_failed(*error))
{
- if (memcached_has_current_error(*ptr)) // Find the most accurate error
+ if (ptr)
{
- *error= memcached_last_error(ptr);
+ if (memcached_has_current_error(*ptr)) // Find the most accurate error
+ {
+ *error= memcached_last_error(ptr);
+ }
}
if (value_length)
+ {
*value_length= 0;
+ }
return NULL;
}
/* This is for historical reasons */
if (*error == MEMCACHED_END)
+ {
*error= MEMCACHED_NOTFOUND;
+ }
if (value == NULL)
{
- if (ptr->get_key_failure && *error == MEMCACHED_NOTFOUND)
+ if (ptr->get_key_failure and *error == MEMCACHED_NOTFOUND)
{
- memcached_result_reset(&ptr->result);
- memcached_return_t rc= ptr->get_key_failure(ptr, key, key_length, &ptr->result);
+ memcached_result_st key_failure_result;
+ memcached_result_st* result_ptr= memcached_result_create(ptr, &key_failure_result);
+ memcached_return_t rc= ptr->get_key_failure(ptr, key, key_length, result_ptr);
/* On all failure drop to returning NULL */
- if (rc == MEMCACHED_SUCCESS || rc == MEMCACHED_BUFFERED)
+ if (rc == MEMCACHED_SUCCESS or rc == MEMCACHED_BUFFERED)
{
if (rc == MEMCACHED_BUFFERED)
{
uint64_t latch; /* We use latch to track the state of the original socket */
latch= memcached_behavior_get(ptr, MEMCACHED_BEHAVIOR_BUFFER_REQUESTS);
if (latch == 0)
+ {
memcached_behavior_set(ptr, MEMCACHED_BEHAVIOR_BUFFER_REQUESTS, 1);
+ }
rc= memcached_set(ptr, key, key_length,
- (memcached_result_value(&ptr->result)),
- (memcached_result_length(&ptr->result)),
+ (memcached_result_value(result_ptr)),
+ (memcached_result_length(result_ptr)),
0,
- (memcached_result_flags(&ptr->result)));
+ (memcached_result_flags(result_ptr)));
- if (rc == MEMCACHED_BUFFERED && latch == 0)
+ if (rc == MEMCACHED_BUFFERED and latch == 0)
{
memcached_behavior_set(ptr, MEMCACHED_BEHAVIOR_BUFFER_REQUESTS, 0);
}
else
{
rc= memcached_set(ptr, key, key_length,
- (memcached_result_value(&ptr->result)),
- (memcached_result_length(&ptr->result)),
+ (memcached_result_value(result_ptr)),
+ (memcached_result_length(result_ptr)),
0,
- (memcached_result_flags(&ptr->result)));
+ (memcached_result_flags(result_ptr)));
}
- if (rc == MEMCACHED_SUCCESS || rc == MEMCACHED_BUFFERED)
+ if (rc == MEMCACHED_SUCCESS or rc == MEMCACHED_BUFFERED)
{
*error= rc;
- *value_length= memcached_result_length(&ptr->result);
- *flags= memcached_result_flags(&ptr->result);
- return memcached_string_take_value(&ptr->result.value);
+ *value_length= memcached_result_length(result_ptr);
+ *flags= memcached_result_flags(result_ptr);
+ char *result_value= memcached_string_take_value(&result_ptr->value);
+ memcached_result_free(result_ptr);
+
+ return result_value;
}
}
+
+ memcached_result_free(result_ptr);
}
assert_msg(ptr->query_id == query_id +1, "Programmer error, the query_id was not incremented.");
return NULL;
}
- size_t dummy_length;
- uint32_t dummy_flags;
- memcached_return_t dummy_error;
-
- char *dummy_value= memcached_fetch(ptr, NULL, NULL,
- &dummy_length, &dummy_flags,
- &dummy_error);
- assert_msg(dummy_value == 0, "memcached_fetch() returned additional values beyond the single get it expected");
- assert_msg(dummy_length == 0, "memcached_fetch() returned additional values beyond the single get it expected");
- assert_msg(ptr->query_id == query_id +1, "Programmer error, the query_id was not incremented.");
-
return value;
}
bool mget_mode)
{
bool failures_occured_in_sending= false;
- const char *get_command= "get ";
- uint8_t get_command_length= 4;
+ const char *get_command= "get";
+ uint8_t get_command_length= 3;
unsigned int master_server_key= (unsigned int)-1; /* 0 is a valid server id! */
memcached_return_t rc;
- if (memcached_failed(rc= initialize_query(ptr)))
+ if (memcached_failed(rc= initialize_query(ptr, true)))
{
return rc;
}
- unlikely (ptr->flags.use_udp)
+ if (memcached_is_udp(ptr))
{
return memcached_set_error(*ptr, MEMCACHED_NOT_SUPPORTED, MEMCACHED_AT);
}
if (memcached_failed(memcached_key_test(*ptr, keys, key_length, number_of_keys)))
{
- return memcached_set_error(*ptr, MEMCACHED_BAD_KEY_PROVIDED, MEMCACHED_AT, memcached_literal_param("A bad key value was provided"));
+ return memcached_last_error(ptr);
}
bool is_group_key_set= false;
- if (group_key && group_key_length)
+ if (group_key and group_key_length)
{
- if (memcached_failed(memcached_key_test(*ptr, (const char * const *)&group_key, &group_key_length, 1)))
- {
- return memcached_set_error(*ptr, MEMCACHED_BAD_KEY_PROVIDED, MEMCACHED_AT, memcached_literal_param("A bad group key was provided."));
- }
-
master_server_key= memcached_generate_hash_with_redistribution(ptr, group_key, group_key_length);
is_group_key_set= true;
}
*/
for (uint32_t x= 0; x < memcached_server_count(ptr); x++)
{
- memcached_server_write_instance_st instance=
- memcached_server_instance_fetch(ptr, x);
+ org::libmemcached::Instance* instance= memcached_instance_fetch(ptr, x);
- if (memcached_server_response_count(instance))
+ if (memcached_instance_response_count(instance))
{
char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
if (ptr->flags.no_block)
- (void)memcached_io_write(instance, NULL, 0, true);
+ {
+ memcached_io_write(instance);
+ }
- while(memcached_server_response_count(instance))
+ while(memcached_instance_response_count(instance))
+ {
(void)memcached_response(instance, buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, &ptr->result);
+ }
}
}
- if (ptr->flags.binary_protocol)
+ if (memcached_is_binary(ptr))
{
return binary_mget_by_key(ptr, master_server_key, is_group_key_set, keys,
key_length, number_of_keys, mget_mode);
if (ptr->flags.support_cas)
{
- get_command= "gets ";
- get_command_length= 5;
+ get_command= "gets";
+ get_command_length= 4;
}
/*
size_t hosts_connected= 0;
for (uint32_t x= 0; x < number_of_keys; x++)
{
- memcached_server_write_instance_st instance;
uint32_t server_key;
if (is_group_key_set)
server_key= memcached_generate_hash_with_redistribution(ptr, keys[x], key_length[x]);
}
- instance= memcached_server_instance_fetch(ptr, server_key);
+ org::libmemcached::Instance* instance= memcached_instance_fetch(ptr, server_key);
- struct libmemcached_io_vector_st vector[]=
+ libmemcached_io_vector_st vector[]=
{
- { get_command_length, get_command },
- { memcached_array_size(ptr->_namespace), memcached_array_string(ptr->_namespace) },
- { key_length[x], keys[x] },
- { 1, " " }
+ { get_command, get_command_length },
+ { memcached_literal_param(" ") },
+ { memcached_array_string(ptr->_namespace), memcached_array_size(ptr->_namespace) },
+ { keys[x], key_length[x] }
};
- if (memcached_server_response_count(instance) == 0)
+ if (memcached_instance_response_count(instance) == 0)
{
rc= memcached_connect(instance);
}
hosts_connected++;
- if ((memcached_io_writev(instance, vector, 4, false)) == -1)
+ if ((memcached_io_writev(instance, vector, 4, false)) == false)
{
failures_occured_in_sending= true;
continue;
}
WATCHPOINT_ASSERT(instance->cursor_active == 0);
- memcached_server_response_increment(instance);
+ memcached_instance_response_increment(instance);
WATCHPOINT_ASSERT(instance->cursor_active == 1);
}
else
{
- if ((memcached_io_writev(instance, (vector + 1), 3, false)) == -1)
+ if ((memcached_io_writev(instance, (vector + 1), 3, false)) == false)
{
- memcached_server_response_reset(instance);
+ memcached_instance_response_reset(instance);
failures_occured_in_sending= true;
continue;
}
LIBMEMCACHED_MEMCACHED_MGET_END();
if (memcached_failed(rc))
+ {
return rc;
+ }
return memcached_set_error(*ptr, MEMCACHED_NO_SERVERS, MEMCACHED_AT);
}
bool success_happened= false;
for (uint32_t x= 0; x < memcached_server_count(ptr); x++)
{
- memcached_server_write_instance_st instance=
- memcached_server_instance_fetch(ptr, x);
+ org::libmemcached::Instance* instance= memcached_instance_fetch(ptr, x);
- if (memcached_server_response_count(instance))
+ if (memcached_instance_response_count(instance))
{
/* We need to do something about non-connnected hosts in the future */
if ((memcached_io_write(instance, "\r\n", 2, true)) == -1)
LIBMEMCACHED_MEMCACHED_MGET_END();
- if (failures_occured_in_sending && success_happened)
+ if (failures_occured_in_sending and success_happened)
{
return MEMCACHED_SOME_ERRORS;
}
if (success_happened)
+ {
return MEMCACHED_SUCCESS;
+ }
return MEMCACHED_FAILURE; // Complete failure occurred
}
void *context,
unsigned int number_of_callbacks)
{
- if ((ptr->flags.binary_protocol) == 0)
- return MEMCACHED_NOT_SUPPORTED;
-
memcached_return_t rc;
+ if (memcached_failed(rc= initialize_query(ptr, false)))
+ {
+ return rc;
+ }
+
+ if (memcached_is_udp(ptr))
+ {
+ return memcached_set_error(*ptr, MEMCACHED_NOT_SUPPORTED, MEMCACHED_AT);
+ }
+
+ if (memcached_is_binary(ptr) == false)
+ {
+ return memcached_set_error(*ptr, MEMCACHED_NOT_SUPPORTED, MEMCACHED_AT,
+ memcached_literal_param("ASCII protocol is not supported for memcached_mget_execute_by_key()"));
+ }
+
memcached_callback_st *original_callbacks= ptr->callbacks;
memcached_callback_st cb= {
callback,
server_key= memcached_generate_hash_with_redistribution(ptr, keys[x], key_length[x]);
}
- memcached_server_write_instance_st instance= memcached_server_instance_fetch(ptr, server_key);
+ org::libmemcached::Instance* instance= memcached_instance_fetch(ptr, server_key);
- if (memcached_server_response_count(instance) == 0)
+ if (memcached_instance_response_count(instance) == 0)
{
rc= memcached_connect(instance);
if (memcached_failed(rc))
+ {
continue;
+ }
}
protocol_binary_request_getk request= { }; //= {.bytes= {0}};
- request.message.header.request.magic= PROTOCOL_BINARY_REQ;
+ initialize_binary_request(instance, request.message.header);
if (mget_mode)
+ {
request.message.header.request.opcode= PROTOCOL_BINARY_CMD_GETKQ;
+ }
else
+ {
request.message.header.request.opcode= PROTOCOL_BINARY_CMD_GETK;
+ }
memcached_return_t vk;
vk= memcached_validate_key_length(key_length[x],
ptr->flags.binary_protocol);
- unlikely (vk != MEMCACHED_SUCCESS)
+ if (vk != MEMCACHED_SUCCESS)
{
if (x > 0)
{
request.message.header.request.datatype= PROTOCOL_BINARY_RAW_BYTES;
request.message.header.request.bodylen= htonl((uint32_t)( key_length[x] + memcached_array_size(ptr->_namespace)));
- struct libmemcached_io_vector_st vector[]=
+ libmemcached_io_vector_st vector[]=
{
- { sizeof(request.bytes), request.bytes },
- { memcached_array_size(ptr->_namespace), memcached_array_string(ptr->_namespace) },
- { key_length[x], keys[x] }
+ { request.bytes, sizeof(request.bytes) },
+ { memcached_array_string(ptr->_namespace), memcached_array_size(ptr->_namespace) },
+ { keys[x], key_length[x] }
};
- if (memcached_io_writev(instance, vector, 3, flush) == -1)
+ if (memcached_io_writev(instance, vector, 3, flush) == false)
{
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 and x == ptr->io_key_prefetch) and memcached_flush_buffers(ptr) != MEMCACHED_SUCCESS)
{
rc= MEMCACHED_SOME_ERRORS;
}
Send a noop command to flush the buffers
*/
protocol_binary_request_noop request= {}; //= {.bytes= {0}};
- request.message.header.request.magic= PROTOCOL_BINARY_REQ;
request.message.header.request.opcode= PROTOCOL_BINARY_CMD_NOOP;
request.message.header.request.datatype= PROTOCOL_BINARY_RAW_BYTES;
for (uint32_t x= 0; x < memcached_server_count(ptr); ++x)
{
- memcached_server_write_instance_st instance=
- memcached_server_instance_fetch(ptr, x);
+ org::libmemcached::Instance* instance= memcached_instance_fetch(ptr, x);
+ initialize_binary_request(instance, request.message.header);
- if (memcached_server_response_count(instance))
+ if (memcached_instance_response_count(instance))
{
- if (memcached_io_write(instance, NULL, 0, true) == -1)
+ if (memcached_io_write(instance) == false)
{
- memcached_server_response_reset(instance);
+ memcached_instance_response_reset(instance);
memcached_io_reset(instance);
rc= MEMCACHED_SOME_ERRORS;
}
if (memcached_io_write(instance, request.bytes,
sizeof(request.bytes), true) == -1)
{
- memcached_server_response_reset(instance);
+ memcached_instance_response_reset(instance);
memcached_io_reset(instance);
rc= MEMCACHED_SOME_ERRORS;
}
uint64_t randomize_read= memcached_behavior_get(ptr, MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ);
if (randomize_read)
+ {
start= (uint32_t)random() % (uint32_t)(ptr->number_of_replicas + 1);
+ }
/* Loop for each replica */
for (uint32_t replica= 0; replica <= ptr->number_of_replicas; ++replica)
uint32_t server= hash[x] + replica;
/* In case of randomized reads */
- if (randomize_read && ((server + start) <= (hash[x] + ptr->number_of_replicas)))
- server += start;
+ if (randomize_read and ((server + start) <= (hash[x] + ptr->number_of_replicas)))
+ {
+ server+= start;
+ }
while (server >= memcached_server_count(ptr))
+ {
server -= memcached_server_count(ptr);
+ }
if (dead_servers[server])
+ {
continue;
+ }
- memcached_server_write_instance_st instance= memcached_server_instance_fetch(ptr, server);
+ org::libmemcached::Instance* instance= memcached_instance_fetch(ptr, server);
- if (memcached_server_response_count(instance) == 0)
+ if (memcached_instance_response_count(instance) == 0)
{
rc= memcached_connect(instance);
+
if (memcached_failed(rc))
{
memcached_io_reset(instance);
}
protocol_binary_request_getk request= {};
- request.message.header.request.magic= PROTOCOL_BINARY_REQ;
+ initialize_binary_request(instance, request.message.header);
request.message.header.request.opcode= PROTOCOL_BINARY_CMD_GETK;
request.message.header.request.keylen= htons((uint16_t)(key_length[x] + memcached_array_size(ptr->_namespace)));
request.message.header.request.datatype= PROTOCOL_BINARY_RAW_BYTES;
* that we might have processed some of the responses etc. For now,
* just make sure we work _correctly_
*/
- struct libmemcached_io_vector_st vector[]=
+ libmemcached_io_vector_st vector[]=
{
- { sizeof(request.bytes), request.bytes },
- { memcached_array_size(ptr->_namespace), memcached_array_string(ptr->_namespace) },
- { key_length[x], keys[x] }
+ { request.bytes, sizeof(request.bytes) },
+ { memcached_array_string(ptr->_namespace), memcached_array_size(ptr->_namespace) },
+ { keys[x], key_length[x] }
};
- if (memcached_io_writev(instance, vector, 3, true) == -1)
+ if (memcached_io_writev(instance, vector, 3, true) == false)
{
memcached_io_reset(instance);
dead_servers[server]= true;
}
if (success)
+ {
break;
+ }
}
return rc;
keys, key_length, number_of_keys, mget_mode);
}
- uint32_t* hash= static_cast<uint32_t*>(libmemcached_malloc(ptr, sizeof(uint32_t) * number_of_keys));
- bool* dead_servers= static_cast<bool*>(libmemcached_calloc(ptr, memcached_server_count(ptr), sizeof(bool)));
+ uint32_t* hash= libmemcached_xvalloc(ptr, number_of_keys, uint32_t);
+ bool* dead_servers= libmemcached_xcalloc(ptr, memcached_server_count(ptr), bool);
- if (hash == NULL || dead_servers == NULL)
+ if (hash == NULL or dead_servers == NULL)
{
libmemcached_free(ptr, hash);
libmemcached_free(ptr, dead_servers);
projects / m6w6 / libmemcached / blobdiff