{
switch (verb)
{
- case SET_OP:
- return "set ";
case REPLACE_OP:
return "replace ";
+
case ADD_OP:
return "add ";
+
case PREPEND_OP:
return "prepend ";
+
case APPEND_OP:
return "append ";
+
case CAS_OP:
return "cas ";
- default:
- return "tosserror"; /* This is impossible, fixes issue for compiler warning in VisualStudio */
+
+ case SET_OP:
+ break;
}
- /* NOTREACHED */
+ return "set ";
+}
+
+static inline uint8_t get_com_code(memcached_storage_action_t verb, bool noreply)
+{
+ /* 0 isn't a value we want, but GCC 4.2 seems to think ret can otherwise
+ * be used uninitialized in this function. FAIL */
+ uint8_t ret= 0;
+
+ if (noreply)
+ switch (verb)
+ {
+ case SET_OP:
+ ret=PROTOCOL_BINARY_CMD_SETQ;
+ break;
+ case ADD_OP:
+ ret=PROTOCOL_BINARY_CMD_ADDQ;
+ break;
+ case CAS_OP: /* FALLTHROUGH */
+ case REPLACE_OP:
+ ret=PROTOCOL_BINARY_CMD_REPLACEQ;
+ break;
+ case APPEND_OP:
+ ret=PROTOCOL_BINARY_CMD_APPENDQ;
+ break;
+ case PREPEND_OP:
+ ret=PROTOCOL_BINARY_CMD_PREPENDQ;
+ break;
+ default:
+ WATCHPOINT_ASSERT(verb);
+ break;
+ }
+ else
+ switch (verb)
+ {
+ case SET_OP:
+ ret=PROTOCOL_BINARY_CMD_SET;
+ break;
+ case ADD_OP:
+ ret=PROTOCOL_BINARY_CMD_ADD;
+ break;
+ case CAS_OP: /* FALLTHROUGH */
+ case REPLACE_OP:
+ ret=PROTOCOL_BINARY_CMD_REPLACE;
+ break;
+ case APPEND_OP:
+ ret=PROTOCOL_BINARY_CMD_APPEND;
+ break;
+ case PREPEND_OP:
+ ret=PROTOCOL_BINARY_CMD_PREPEND;
+ break;
+ default:
+ WATCHPOINT_ASSERT(verb);
+ break;
+ }
+
+ return ret;
}
static memcached_return_t memcached_send_binary(memcached_st *ptr,
time_t expiration,
uint32_t flags,
uint64_t cas,
- memcached_storage_action_t verb);
-
-static inline memcached_return_t memcached_send(memcached_st *ptr,
- const char *group_key, size_t group_key_length,
- const char *key, size_t key_length,
- const char *value, size_t value_length,
- time_t expiration,
- uint32_t flags,
- uint64_t cas,
memcached_storage_action_t verb)
{
- bool to_write;
- size_t write_length;
- char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
+ bool flush;
+ protocol_binary_request_set request= {};
+ size_t send_length= sizeof(request.bytes);
- WATCHPOINT_ASSERT(!(value == NULL && value_length > 0));
+ bool noreply= server->root->flags.no_reply;
- memcached_return_t rc;
- if (memcached_failed(rc= initialize_query(ptr)))
+ request.message.header.request.magic= PROTOCOL_BINARY_REQ;
+ request.message.header.request.opcode= get_com_code(verb, noreply);
+ request.message.header.request.keylen= htons((uint16_t)(key_length + memcached_array_size(ptr->_namespace)));
+ request.message.header.request.datatype= PROTOCOL_BINARY_RAW_BYTES;
+ if (verb == APPEND_OP || verb == PREPEND_OP)
+ send_length -= 8; /* append & prepend does not contain extras! */
+ else
{
- return rc;
+ request.message.header.request.extlen= 8;
+ request.message.body.flags= htonl(flags);
+ request.message.body.expiration= htonl((uint32_t)expiration);
}
- if (memcached_failed(rc= memcached_validate_key_length(key_length, ptr->flags.binary_protocol)))
- {
- return rc;
- }
+ request.message.header.request.bodylen= htonl((uint32_t) (key_length + memcached_array_size(ptr->_namespace) + value_length +
+ request.message.header.request.extlen));
- if (memcached_failed(memcached_key_test(*ptr, (const char **)&key, &key_length, 1)))
+ if (cas)
+ request.message.header.request.cas= memcached_htonll(cas);
+
+ flush= (bool) ((server->root->flags.buffer_requests && verb == SET_OP) ? 0 : 1);
+
+ if (server->root->flags.use_udp && ! flush)
{
- return MEMCACHED_BAD_KEY_PROVIDED;
- }
+ size_t cmd_size= send_length + key_length + value_length;
- uint32_t server_key= memcached_generate_hash_with_redistribution(ptr, group_key, group_key_length);
- memcached_server_write_instance_st instance= memcached_server_instance_fetch(ptr, server_key);
+ if (cmd_size > MAX_UDP_DATAGRAM_LENGTH - UDP_DATAGRAM_HEADER_LENGTH)
+ {
+ return MEMCACHED_WRITE_FAILURE;
+ }
+ if (cmd_size + server->write_buffer_offset > MAX_UDP_DATAGRAM_LENGTH)
+ {
+ memcached_io_write(server, NULL, 0, true);
+ }
+ }
- WATCHPOINT_SET(instance->io_wait_count.read= 0);
- WATCHPOINT_SET(instance->io_wait_count.write= 0);
+ struct libmemcached_io_vector_st vector[]=
+ {
+ { send_length, request.bytes },
+ { memcached_array_size(ptr->_namespace), memcached_array_string(ptr->_namespace) },
+ { key_length, key },
+ { value_length, value }
+ };
- if (ptr->flags.binary_protocol)
+ /* write the header */
+ memcached_return_t rc;
+ if ((rc= memcached_vdo(server, vector, 4, flush)) != MEMCACHED_SUCCESS)
{
- rc= memcached_send_binary(ptr, instance, server_key,
- key, key_length,
- value, value_length, expiration,
- flags, cas, verb);
- WATCHPOINT_IF_LABELED_NUMBER(instance->io_wait_count.read > 2, "read IO_WAIT", instance->io_wait_count.read);
- WATCHPOINT_IF_LABELED_NUMBER(instance->io_wait_count.write > 2, "write_IO_WAIT", instance->io_wait_count.write);
+ memcached_io_reset(server);
+ return (rc == MEMCACHED_SUCCESS) ? MEMCACHED_WRITE_FAILURE : rc;
}
- else
+
+ if (verb == SET_OP && ptr->number_of_replicas > 0)
{
+ request.message.header.request.opcode= PROTOCOL_BINARY_CMD_SETQ;
+ WATCHPOINT_STRING("replicating");
- if (cas)
+ for (uint32_t x= 0; x < ptr->number_of_replicas; x++)
{
- int check_length;
- check_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
- "%s %.*s%.*s %u %llu %lu %llu%s\r\n",
- storage_op_string(verb),
- memcached_print_array(ptr->_namespace),
- (int)key_length, key, flags,
- (unsigned long long)expiration, (unsigned long)value_length,
- (unsigned long long)cas,
- (ptr->flags.no_reply) ? " noreply" : "");
- if (check_length >= MEMCACHED_DEFAULT_COMMAND_SIZE || check_length < 0)
+ memcached_server_write_instance_st instance;
+
+ ++server_key;
+ if (server_key == memcached_server_count(ptr))
+ server_key= 0;
+
+ instance= memcached_server_instance_fetch(ptr, server_key);
+
+ if (memcached_vdo(instance, vector, 4, false) != MEMCACHED_SUCCESS)
{
- rc= memcached_set_error(*instance, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT,
- memcached_literal_param("snprintf(MEMCACHED_DEFAULT_COMMAND_SIZE)"));
memcached_io_reset(instance);
-
- return rc;
}
- write_length= check_length;
- }
- else
- {
- char *buffer_ptr= buffer;
- const char *command= storage_op_string(verb);
-
- /* Copy in the command, no space needed, we handle that in the command function*/
- memcpy(buffer_ptr, command, strlen(command));
-
- /* Copy in the key prefix, switch to the buffer_ptr */
- buffer_ptr= (char *)memcpy((char *)(buffer_ptr + strlen(command)), (char *)memcached_array_string(ptr->_namespace), memcached_array_size(ptr->_namespace));
-
- /* Copy in the key, adjust point if a key prefix was used. */
- buffer_ptr= (char *)memcpy(buffer_ptr + memcached_array_size(ptr->_namespace),
- key, key_length);
- buffer_ptr+= key_length;
- buffer_ptr[0]= ' ';
- buffer_ptr++;
-
- write_length= (size_t)(buffer_ptr - buffer);
- int check_length= snprintf(buffer_ptr, MEMCACHED_DEFAULT_COMMAND_SIZE -(size_t)(buffer_ptr - buffer),
- "%u %llu %lu%s\r\n",
- flags,
- (unsigned long long)expiration, (unsigned long)value_length,
- ptr->flags.no_reply ? " noreply" : "");
- if ((size_t)check_length >= MEMCACHED_DEFAULT_COMMAND_SIZE -size_t(buffer_ptr - buffer) || check_length < 0)
+ else
{
- rc= memcached_set_error(*ptr, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT,
- memcached_literal_param("snprintf(MEMCACHED_DEFAULT_COMMAND_SIZE)"));
- memcached_io_reset(instance);
-
- return rc;
+ memcached_server_response_decrement(instance);
}
-
- write_length+= (size_t)check_length;
- WATCHPOINT_ASSERT(write_length < MEMCACHED_DEFAULT_COMMAND_SIZE);
}
+ }
+
+ if (flush == false)
+ {
+ return MEMCACHED_BUFFERED;
+ }
- if (ptr->flags.use_udp && ptr->flags.buffer_requests)
+ if (noreply)
+ {
+ return MEMCACHED_SUCCESS;
+ }
+
+ return memcached_response(server, NULL, 0, NULL);
+}
+
+static memcached_return_t memcached_send_ascii(memcached_st *ptr,
+ memcached_server_write_instance_st instance,
+ const char *key,
+ size_t key_length,
+ const char *value,
+ size_t value_length,
+ time_t expiration,
+ uint32_t flags,
+ uint64_t cas,
+ memcached_storage_action_t verb)
+{
+ bool to_write;
+ size_t write_length;
+ char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
+ memcached_return_t rc;
+
+ if (cas)
+ {
+ int check_length;
+ check_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
+ "%s %.*s%.*s %u %llu %lu %llu%s\r\n",
+ storage_op_string(verb),
+ memcached_print_array(ptr->_namespace),
+ (int)key_length, key, flags,
+ (unsigned long long)expiration, (unsigned long)value_length,
+ (unsigned long long)cas,
+ (ptr->flags.no_reply) ? " noreply" : "");
+ if (check_length >= MEMCACHED_DEFAULT_COMMAND_SIZE || check_length < 0)
{
- size_t cmd_size= write_length + value_length +2;
- if (cmd_size > MAX_UDP_DATAGRAM_LENGTH - UDP_DATAGRAM_HEADER_LENGTH)
- return memcached_set_error(*ptr, MEMCACHED_WRITE_FAILURE, MEMCACHED_AT);
+ rc= memcached_set_error(*instance, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT,
+ memcached_literal_param("snprintf(MEMCACHED_DEFAULT_COMMAND_SIZE)"));
+ memcached_io_reset(instance);
- if (cmd_size + instance->write_buffer_offset > MAX_UDP_DATAGRAM_LENGTH)
- memcached_io_write(instance, NULL, 0, true);
+ return rc;
}
+ write_length= check_length;
+ }
+ else
+ {
+ char *buffer_ptr= buffer;
+ const char *command= storage_op_string(verb);
+
+ /* Copy in the command, no space needed, we handle that in the command function*/
+ memcpy(buffer_ptr, command, strlen(command));
+
+ /* Copy in the key prefix, switch to the buffer_ptr */
+ buffer_ptr= (char *)memcpy((char *)(buffer_ptr + strlen(command)), (char *)memcached_array_string(ptr->_namespace), memcached_array_size(ptr->_namespace));
+
+ /* Copy in the key, adjust point if a key prefix was used. */
+ buffer_ptr= (char *)memcpy(buffer_ptr + memcached_array_size(ptr->_namespace),
+ key, key_length);
+ buffer_ptr+= key_length;
+ buffer_ptr[0]= ' ';
+ buffer_ptr++;
+
+ write_length= (size_t)(buffer_ptr - buffer);
+ int check_length= snprintf(buffer_ptr, MEMCACHED_DEFAULT_COMMAND_SIZE -(size_t)(buffer_ptr - buffer),
+ "%u %llu %lu%s\r\n",
+ flags,
+ (unsigned long long)expiration, (unsigned long)value_length,
+ ptr->flags.no_reply ? " noreply" : "");
+ if ((size_t)check_length >= MEMCACHED_DEFAULT_COMMAND_SIZE -size_t(buffer_ptr - buffer) || check_length < 0)
+ {
+ rc= memcached_set_error(*ptr, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT,
+ memcached_literal_param("snprintf(MEMCACHED_DEFAULT_COMMAND_SIZE)"));
+ memcached_io_reset(instance);
+
+ return rc;
+ }
+
+ write_length+= (size_t)check_length;
+ WATCHPOINT_ASSERT(write_length < MEMCACHED_DEFAULT_COMMAND_SIZE);
+ }
+
+ if (ptr->flags.use_udp && ptr->flags.buffer_requests)
+ {
+ size_t cmd_size= write_length + value_length +2;
+ if (cmd_size > MAX_UDP_DATAGRAM_LENGTH - UDP_DATAGRAM_HEADER_LENGTH)
+ return memcached_set_error(*ptr, MEMCACHED_WRITE_FAILURE, MEMCACHED_AT);
+
+ if (cmd_size + instance->write_buffer_offset > MAX_UDP_DATAGRAM_LENGTH)
+ memcached_io_write(instance, NULL, 0, true);
+ }
+
+ if (write_length >= MEMCACHED_DEFAULT_COMMAND_SIZE)
+ {
+ rc= memcached_set_error(*ptr, MEMCACHED_WRITE_FAILURE, MEMCACHED_AT);
+ }
+ else
+ {
+ struct libmemcached_io_vector_st vector[]=
+ {
+ { write_length, buffer },
+ { value_length, value },
+ { 2, "\r\n" }
+ };
- if (write_length >= MEMCACHED_DEFAULT_COMMAND_SIZE)
+ if (ptr->flags.buffer_requests && verb == SET_OP)
{
- rc= memcached_set_error(*ptr, MEMCACHED_WRITE_FAILURE, MEMCACHED_AT);
+ to_write= false;
}
else
{
- struct libmemcached_io_vector_st vector[]=
- {
- { write_length, buffer },
- { value_length, value },
- { 2, "\r\n" }
- };
+ to_write= true;
+ }
- if (ptr->flags.buffer_requests && verb == SET_OP)
+ /* Send command header */
+ rc= memcached_vdo(instance, vector, 3, to_write);
+ if (rc == MEMCACHED_SUCCESS)
+ {
+
+ if (ptr->flags.no_reply)
{
- to_write= false;
+ rc= (to_write == false) ? MEMCACHED_BUFFERED : MEMCACHED_SUCCESS;
}
- else
+ else if (to_write == false)
{
- to_write= true;
+ rc= MEMCACHED_BUFFERED;
}
-
- /* Send command header */
- rc= memcached_vdo(instance, vector, 3, to_write);
- if (rc == MEMCACHED_SUCCESS)
+ else
{
+ rc= memcached_response(instance, buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, NULL);
- if (ptr->flags.no_reply)
- {
- rc= (to_write == false) ? MEMCACHED_BUFFERED : MEMCACHED_SUCCESS;
- }
- else if (to_write == false)
- {
- rc= MEMCACHED_BUFFERED;
- }
- else
- {
- rc= memcached_response(instance, buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, NULL);
-
- if (rc == MEMCACHED_STORED)
- rc= MEMCACHED_SUCCESS;
- }
+ if (rc == MEMCACHED_STORED)
+ rc= MEMCACHED_SUCCESS;
}
}
+ }
- if (rc == MEMCACHED_WRITE_FAILURE)
- memcached_io_reset(instance);
+ if (rc == MEMCACHED_WRITE_FAILURE)
+ memcached_io_reset(instance);
+
+ return rc;
+}
+
+static inline memcached_return_t memcached_send(memcached_st *ptr,
+ const char *group_key, size_t group_key_length,
+ const char *key, size_t key_length,
+ const char *value, size_t value_length,
+ time_t expiration,
+ uint32_t flags,
+ uint64_t cas,
+ memcached_storage_action_t verb)
+{
+ WATCHPOINT_ASSERT(!(value == NULL && value_length > 0));
+
+ memcached_return_t rc;
+ if (memcached_failed(rc= initialize_query(ptr)))
+ {
+ return rc;
}
- WATCHPOINT_IF_LABELED_NUMBER(instance->io_wait_count.read > 2, "read IO_WAIT", instance->io_wait_count.read);
- WATCHPOINT_IF_LABELED_NUMBER(instance->io_wait_count.write > 2, "write_IO_WAIT", instance->io_wait_count.write);
+ if (memcached_failed(rc= memcached_validate_key_length(key_length, ptr->flags.binary_protocol)))
+ {
+ return rc;
+ }
+
+ if (memcached_failed(memcached_key_test(*ptr, (const char **)&key, &key_length, 1)))
+ {
+ return MEMCACHED_BAD_KEY_PROVIDED;
+ }
+
+ uint32_t server_key= memcached_generate_hash_with_redistribution(ptr, group_key, group_key_length);
+ memcached_server_write_instance_st instance= memcached_server_instance_fetch(ptr, server_key);
+
+ WATCHPOINT_SET(instance->io_wait_count.read= 0);
+ WATCHPOINT_SET(instance->io_wait_count.write= 0);
+
+ if (ptr->flags.binary_protocol)
+ {
+ rc= memcached_send_binary(ptr, instance, server_key,
+ key, key_length,
+ value, value_length, expiration,
+ flags, cas, verb);
+ }
+ else
+ {
+ rc= memcached_send_ascii(ptr, instance,
+ key, key_length,
+ value, value_length, expiration,
+ flags, cas, verb);
+ }
return rc;
}
return rc;
}
-static inline uint8_t get_com_code(memcached_storage_action_t verb, bool noreply)
-{
- /* 0 isn't a value we want, but GCC 4.2 seems to think ret can otherwise
- * be used uninitialized in this function. FAIL */
- uint8_t ret= 0;
-
- if (noreply)
- switch (verb)
- {
- case SET_OP:
- ret=PROTOCOL_BINARY_CMD_SETQ;
- break;
- case ADD_OP:
- ret=PROTOCOL_BINARY_CMD_ADDQ;
- break;
- case CAS_OP: /* FALLTHROUGH */
- case REPLACE_OP:
- ret=PROTOCOL_BINARY_CMD_REPLACEQ;
- break;
- case APPEND_OP:
- ret=PROTOCOL_BINARY_CMD_APPENDQ;
- break;
- case PREPEND_OP:
- ret=PROTOCOL_BINARY_CMD_PREPENDQ;
- break;
- default:
- WATCHPOINT_ASSERT(verb);
- break;
- }
- else
- switch (verb)
- {
- case SET_OP:
- ret=PROTOCOL_BINARY_CMD_SET;
- break;
- case ADD_OP:
- ret=PROTOCOL_BINARY_CMD_ADD;
- break;
- case CAS_OP: /* FALLTHROUGH */
- case REPLACE_OP:
- ret=PROTOCOL_BINARY_CMD_REPLACE;
- break;
- case APPEND_OP:
- ret=PROTOCOL_BINARY_CMD_APPEND;
- break;
- case PREPEND_OP:
- ret=PROTOCOL_BINARY_CMD_PREPEND;
- break;
- default:
- WATCHPOINT_ASSERT(verb);
- break;
- }
-
- return ret;
-}
-
-
-
-static memcached_return_t memcached_send_binary(memcached_st *ptr,
- memcached_server_write_instance_st server,
- uint32_t server_key,
- const char *key,
- size_t key_length,
- const char *value,
- size_t value_length,
- time_t expiration,
- uint32_t flags,
- uint64_t cas,
- memcached_storage_action_t verb)
-{
- bool flush;
- protocol_binary_request_set request= {};
- size_t send_length= sizeof(request.bytes);
-
- bool noreply= server->root->flags.no_reply;
-
- request.message.header.request.magic= PROTOCOL_BINARY_REQ;
- request.message.header.request.opcode= get_com_code(verb, noreply);
- request.message.header.request.keylen= htons((uint16_t)(key_length + memcached_array_size(ptr->_namespace)));
- request.message.header.request.datatype= PROTOCOL_BINARY_RAW_BYTES;
- if (verb == APPEND_OP || verb == PREPEND_OP)
- send_length -= 8; /* append & prepend does not contain extras! */
- else
- {
- request.message.header.request.extlen= 8;
- request.message.body.flags= htonl(flags);
- request.message.body.expiration= htonl((uint32_t)expiration);
- }
-
- request.message.header.request.bodylen= htonl((uint32_t) (key_length + memcached_array_size(ptr->_namespace) + value_length +
- request.message.header.request.extlen));
-
- if (cas)
- request.message.header.request.cas= memcached_htonll(cas);
-
- flush= (bool) ((server->root->flags.buffer_requests && verb == SET_OP) ? 0 : 1);
-
- if (server->root->flags.use_udp && ! flush)
- {
- size_t cmd_size= send_length + key_length + value_length;
-
- if (cmd_size > MAX_UDP_DATAGRAM_LENGTH - UDP_DATAGRAM_HEADER_LENGTH)
- {
- return MEMCACHED_WRITE_FAILURE;
- }
- if (cmd_size + server->write_buffer_offset > MAX_UDP_DATAGRAM_LENGTH)
- {
- memcached_io_write(server, NULL, 0, true);
- }
- }
-
- struct libmemcached_io_vector_st vector[]=
- {
- { send_length, request.bytes },
- { memcached_array_size(ptr->_namespace), memcached_array_string(ptr->_namespace) },
- { key_length, key },
- { value_length, value }
- };
-
- /* write the header */
- memcached_return_t rc;
- if ((rc= memcached_vdo(server, vector, 4, flush)) != MEMCACHED_SUCCESS)
- {
- memcached_io_reset(server);
- return (rc == MEMCACHED_SUCCESS) ? MEMCACHED_WRITE_FAILURE : rc;
- }
-
- if (verb == SET_OP && ptr->number_of_replicas > 0)
- {
- request.message.header.request.opcode= PROTOCOL_BINARY_CMD_SETQ;
- WATCHPOINT_STRING("replicating");
-
- for (uint32_t x= 0; x < ptr->number_of_replicas; x++)
- {
- memcached_server_write_instance_st instance;
-
- ++server_key;
- if (server_key == memcached_server_count(ptr))
- server_key= 0;
-
- instance= memcached_server_instance_fetch(ptr, server_key);
-
- if (memcached_vdo(instance, vector, 4, false) != MEMCACHED_SUCCESS)
- {
- memcached_io_reset(instance);
- }
- else
- {
- memcached_server_response_decrement(instance);
- }
- }
- }
-
- if (flush == false)
- {
- return MEMCACHED_BUFFERED;
- }
-
- if (noreply)
- {
- return MEMCACHED_SUCCESS;
- }
-
- return memcached_response(server, NULL, 0, NULL);
-}
-
projects / awesomized / libmemcached / commitdiff
