-/* LibMemcached
- * Copyright (C) 2006-2009 Brian Aker
- * All rights reserved.
+/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
+ *
+ * Libmemcached library
*
- * Use and distribution licensed under the BSD license. See
- * the COPYING file in the parent directory for full text.
+ * Copyright (C) 2011 Data Differential, http://datadifferential.com/
+ * Copyright (C) 2006-2009 Brian Aker All rights reserved.
*
- * Summary: Change the behavior of the memcached connection.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * * The names of its contributors may not be used to endorse or
+ * promote products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <libmemcached/common.h>
+#include <libmemcached/options.hpp>
#include <libmemcached/virtual_bucket.h>
-#include <time.h>
+#include <ctime>
#include <sys/types.h>
-static bool set_flag(uint64_t data)
+static bool __is_ketama(memcached_st *ptr)
{
- // Wordy :)
- return data ? true : false;
+ switch (ptr->distribution)
+ {
+ case MEMCACHED_DISTRIBUTION_CONSISTENT:
+ case MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA:
+ case MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA_SPY:
+ case MEMCACHED_DISTRIBUTION_CONSISTENT_WEIGHTED:
+ return true;
+
+ case MEMCACHED_DISTRIBUTION_MODULA:
+ case MEMCACHED_DISTRIBUTION_RANDOM:
+ case MEMCACHED_DISTRIBUTION_VIRTUAL_BUCKET:
+ case MEMCACHED_DISTRIBUTION_CONSISTENT_MAX:
+ break;
+ }
+
+ return false;
}
/*
const memcached_behavior_t flag,
uint64_t data)
{
- if (not ptr)
+ if (ptr == NULL)
+ {
return MEMCACHED_INVALID_ARGUMENTS;
+ }
switch (flag)
{
break;
case MEMCACHED_BEHAVIOR_REMOVE_FAILED_SERVERS:
- ptr->flags.auto_eject_hosts= set_flag(data);
+ ptr->flags.auto_eject_hosts= bool(data);
case MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT:
- ptr->server_failure_limit= (uint32_t)data;
+ if (data == 0)
+ {
+ return memcached_set_error(*ptr, MEMCACHED_INVALID_ARGUMENTS, MEMCACHED_AT,
+ memcached_literal_param("MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT requires a value greater then zero."));
+ }
+ ptr->server_failure_limit= uint32_t(data);
break;
case MEMCACHED_BEHAVIOR_BINARY_PROTOCOL:
{
ptr->flags.verify_key= false;
}
- ptr->flags.binary_protocol= set_flag(data);
+ ptr->flags.binary_protocol= bool(data);
break;
case MEMCACHED_BEHAVIOR_SUPPORT_CAS:
- ptr->flags.support_cas= set_flag(data);
+ ptr->flags.support_cas= bool(data);
break;
case MEMCACHED_BEHAVIOR_NO_BLOCK:
- ptr->flags.no_block= set_flag(data);
+ ptr->flags.no_block= bool(data);
send_quit(ptr);
break;
case MEMCACHED_BEHAVIOR_BUFFER_REQUESTS:
- ptr->flags.buffer_requests= set_flag(data);
+ if (memcached_is_udp(ptr))
+ {
+ return memcached_set_error(*ptr, MEMCACHED_INVALID_ARGUMENTS, MEMCACHED_AT,
+ memcached_literal_param("MEMCACHED_BEHAVIOR_BUFFER_REQUESTS cannot be set while MEMCACHED_BEHAVIOR_USE_UDP is enabled."));
+ }
+ ptr->flags.buffer_requests= bool(data);
send_quit(ptr);
break;
case MEMCACHED_BEHAVIOR_USE_UDP:
- if (memcached_server_count(ptr))
+ send_quit(ptr); // We need t shutdown all of the connections to make sure we do the correct protocol
+ ptr->flags.use_udp= bool(data);
+ if (bool(data))
{
- return MEMCACHED_FAILURE;
+ ptr->flags.reply= false;
+ ptr->flags.buffer_requests= false;
}
- ptr->flags.use_udp= set_flag(data);
- if (data)
+ else
{
- ptr->flags.no_reply= set_flag(data);
+ ptr->flags.reply= true;
}
break;
case MEMCACHED_BEHAVIOR_TCP_NODELAY:
- ptr->flags.tcp_nodelay= set_flag(data);
+ ptr->flags.tcp_nodelay= bool(data);
send_quit(ptr);
break;
case MEMCACHED_BEHAVIOR_TCP_KEEPALIVE:
- ptr->flags.tcp_keepalive= set_flag(data);
+ ptr->flags.tcp_keepalive= bool(data);
send_quit(ptr);
break;
case MEMCACHED_BEHAVIOR_KETAMA:
{
if (data) // Turn on
+ {
return memcached_behavior_set_distribution(ptr, MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA);
+ }
return memcached_behavior_set_distribution(ptr, MEMCACHED_DISTRIBUTION_MODULA);
}
case MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED:
{
+ if (bool(data) == false)
+ {
+ return memcached_behavior_set(ptr, MEMCACHED_BEHAVIOR_KETAMA, true);
+ }
+
(void)memcached_behavior_set_key_hash(ptr, MEMCACHED_HASH_MD5);
(void)memcached_behavior_set_distribution_hash(ptr, MEMCACHED_HASH_MD5);
- ptr->ketama.weighted= set_flag(data);
/**
@note We try to keep the same distribution going. This should be deprecated and rewritten.
*/
- return memcached_behavior_set_distribution(ptr, MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA);
+ return memcached_behavior_set_distribution(ptr, MEMCACHED_DISTRIBUTION_CONSISTENT_WEIGHTED);
}
case MEMCACHED_BEHAVIOR_HASH:
case MEMCACHED_BEHAVIOR_VERIFY_KEY:
if (ptr->flags.binary_protocol)
+ {
return memcached_set_error(*ptr, MEMCACHED_INVALID_ARGUMENTS, MEMCACHED_AT,
memcached_literal_param("MEMCACHED_BEHAVIOR_VERIFY_KEY if the binary protocol has been enabled."));
- ptr->flags.verify_key= set_flag(data);
+ }
+ ptr->flags.verify_key= bool(data);
break;
case MEMCACHED_BEHAVIOR_SORT_HOSTS:
{
- ptr->flags.use_sort_hosts= set_flag(data);
- run_distribution(ptr);
-
- break;
+ ptr->flags.use_sort_hosts= bool(data);
+ return run_distribution(ptr);
}
case MEMCACHED_BEHAVIOR_POLL_TIMEOUT:
break;
case MEMCACHED_BEHAVIOR_RETRY_TIMEOUT:
- ptr->retry_timeout= (int32_t)data;
+ if (data == 0)
+ {
+ return memcached_set_error(*ptr, MEMCACHED_INVALID_ARGUMENTS, MEMCACHED_AT,
+ memcached_literal_param("MEMCACHED_BEHAVIOR_RETRY_TIMEOUT requires a value greater then zero."));
+ }
+ ptr->retry_timeout= int32_t(data);
+ break;
+
+ case MEMCACHED_BEHAVIOR_DEAD_TIMEOUT:
+ ptr->dead_timeout= int32_t(data);
break;
case MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE:
memcached_literal_param("MEMCACHED_BEHAVIOR_USER_DATA deprecated."));
case MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY:
- ptr->flags.hash_with_prefix_key= set_flag(data);
+ ptr->flags.hash_with_namespace= bool(data);
break;
case MEMCACHED_BEHAVIOR_NOREPLY:
- ptr->flags.no_reply= set_flag(data);
+ if (memcached_is_udp(ptr) and bool(data) == false)
+ {
+ return memcached_set_error(*ptr, MEMCACHED_INVALID_ARGUMENTS, MEMCACHED_AT,
+ memcached_literal_param("MEMCACHED_BEHAVIOR_NOREPLY cannot be disabled while MEMCACHED_BEHAVIOR_USE_UDP is enabled."));
+ }
+ // We reverse the logic here to make it easier to understand throughout the
+ // code.
+ ptr->flags.reply= bool(data) ? false : true;
break;
case MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS:
- ptr->flags.auto_eject_hosts= set_flag(data);
+ ptr->flags.auto_eject_hosts= bool(data);
break;
case MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ:
srandom((uint32_t) time(NULL));
- ptr->flags.randomize_replica_read= set_flag(data);
+ ptr->flags.randomize_replica_read= bool(data);
break;
case MEMCACHED_BEHAVIOR_CORK:
case MEMCACHED_BEHAVIOR_MAX:
default:
- /* Shouldn't get here */
- WATCHPOINT_ASSERT(0);
- return memcached_set_error(*ptr, MEMCACHED_INVALID_ARGUMENTS, MEMCACHED_AT,
- memcached_literal_param("Invalid behavior passed to memcached_behavior_set()"));
+ /* Shouldn't get here */
+ assert_msg(0, "Invalid behavior passed to memcached_behavior_set()");
+ return memcached_set_error(*ptr, MEMCACHED_INVALID_ARGUMENTS, MEMCACHED_AT,
+ memcached_literal_param("Invalid behavior passed to memcached_behavior_set()"));
}
return MEMCACHED_SUCCESS;
uint64_t memcached_behavior_get(memcached_st *ptr,
const memcached_behavior_t flag)
{
+ if (ptr == NULL)
+ {
+ return MEMCACHED_INVALID_ARGUMENTS;
+ }
+
switch (flag)
{
case MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS:
return ptr->flags.buffer_requests;
case MEMCACHED_BEHAVIOR_USE_UDP:
- return ptr->flags.use_udp;
+ return memcached_is_udp(ptr);
case MEMCACHED_BEHAVIOR_TCP_NODELAY:
return ptr->flags.tcp_nodelay;
return ptr->flags.verify_key;
case MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED:
- return ptr->ketama.weighted;
+ if (__is_ketama(ptr))
+ {
+ return ptr->ketama.weighted;
+ }
+ return false;
case MEMCACHED_BEHAVIOR_DISTRIBUTION:
return ptr->distribution;
case MEMCACHED_BEHAVIOR_KETAMA:
- return (ptr->distribution == MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA) ? (uint64_t) 1 : 0;
+ return __is_ketama(ptr);
case MEMCACHED_BEHAVIOR_HASH:
return hashkit_get_function(&ptr->hashkit);
case MEMCACHED_BEHAVIOR_RETRY_TIMEOUT:
return (uint64_t)ptr->retry_timeout;
+ case MEMCACHED_BEHAVIOR_DEAD_TIMEOUT:
+ return uint64_t(ptr->dead_timeout);
+
case MEMCACHED_BEHAVIOR_SND_TIMEOUT:
return (uint64_t)ptr->snd_timeout;
socklen_t sock_length= sizeof(int);
if (ptr->send_size != -1) // If value is -1 then we are using the default
+ {
return (uint64_t) ptr->send_size;
+ }
memcached_server_write_instance_st instance= memcached_server_instance_fetch(ptr, 0);
if (getsockopt(instance->fd, SOL_SOCKET, SO_SNDBUF, &sock_size, &sock_length) < 0)
{
- memcached_set_errno(*ptr, errno, MEMCACHED_AT);
+ memcached_set_errno(*ptr, get_socket_errno(), MEMCACHED_AT);
return 0; /* Zero means error */
}
}
if (getsockopt(instance->fd, SOL_SOCKET, SO_RCVBUF, &sock_size, &sock_length) < 0)
{
- memcached_set_errno(*ptr, errno, MEMCACHED_AT);
+ memcached_set_errno(*ptr, get_socket_errno(), MEMCACHED_AT);
return 0; /* Zero means error */
}
-
}
return (uint64_t) sock_size;
return 0;
case MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY:
- return ptr->flags.hash_with_prefix_key;
+ return ptr->flags.hash_with_namespace;
case MEMCACHED_BEHAVIOR_NOREPLY:
- return ptr->flags.no_reply;
+ return ptr->flags.reply ? false : true;
case MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS:
return ptr->flags.auto_eject_hosts;
case MEMCACHED_BEHAVIOR_MAX:
default:
- WATCHPOINT_ASSERT(0); /* Programming mistake if it gets this far */
+ assert_msg(0, "Invalid behavior passed to memcached_behavior_set()");
return 0;
}
memcached_return_t memcached_behavior_set_distribution(memcached_st *ptr, memcached_server_distribution_t type)
{
- if (type < MEMCACHED_DISTRIBUTION_CONSISTENT_MAX)
+ switch (type)
{
- if (MEMCACHED_DISTRIBUTION_CONSISTENT_WEIGHTED)
- {
- ptr->ketama.weighted= true;
- }
- else
- {
- ptr->ketama.weighted= false;
- }
- ptr->distribution= type;
- run_distribution(ptr);
- return MEMCACHED_SUCCESS;
+ case MEMCACHED_DISTRIBUTION_MODULA:
+ break;
+
+ case MEMCACHED_DISTRIBUTION_CONSISTENT:
+ case MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA:
+ ptr->ketama.weighted= false;
+ break;
+
+ case MEMCACHED_DISTRIBUTION_RANDOM:
+ break;
+
+ case MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA_SPY:
+ break;
+
+ case MEMCACHED_DISTRIBUTION_CONSISTENT_WEIGHTED:
+ ptr->ketama.weighted= true;
+ break;
+
+ case MEMCACHED_DISTRIBUTION_VIRTUAL_BUCKET:
+ break;
+
+ default:
+ case MEMCACHED_DISTRIBUTION_CONSISTENT_MAX:
+ return memcached_set_error(*ptr, MEMCACHED_INVALID_ARGUMENTS, MEMCACHED_AT,
+ memcached_literal_param("Invalid memcached_server_distribution_t"));
}
+ ptr->distribution= type;
- return memcached_set_error(*ptr, MEMCACHED_INVALID_ARGUMENTS, MEMCACHED_AT,
- memcached_literal_param("Invalid memcached_server_distribution_t"));
+ return run_distribution(ptr);
}
memcached_return_t memcached_behavior_set_key_hash(memcached_st *ptr, memcached_hash_t type)
{
if (hashkit_success(hashkit_set_function(&ptr->hashkit, (hashkit_hash_algorithm_t)type)))
+ {
return MEMCACHED_SUCCESS;
+ }
return memcached_set_error(*ptr, MEMCACHED_INVALID_ARGUMENTS, MEMCACHED_AT,
memcached_literal_param("Invalid memcached_hash_t()"));
memcached_return_t memcached_behavior_set_distribution_hash(memcached_st *ptr, memcached_hash_t type)
{
if (hashkit_success(hashkit_set_distribution_function(&ptr->hashkit, (hashkit_hash_algorithm_t)type)))
+ {
return MEMCACHED_SUCCESS;
+ }
return memcached_set_error(*ptr, MEMCACHED_INVALID_ARGUMENTS, MEMCACHED_AT,
memcached_literal_param("Invalid memcached_hash_t()"));
case MEMCACHED_BEHAVIOR_VERIFY_KEY: return "MEMCACHED_BEHAVIOR_VERIFY_KEY";
case MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT: return "MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT";
case MEMCACHED_BEHAVIOR_RETRY_TIMEOUT: return "MEMCACHED_BEHAVIOR_RETRY_TIMEOUT";
+ case MEMCACHED_BEHAVIOR_DEAD_TIMEOUT: return "MEMCACHED_BEHAVIOR_DEAD_TIMEOUT";
case MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED: return "MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED";
case MEMCACHED_BEHAVIOR_KETAMA_HASH: return "MEMCACHED_BEHAVIOR_KETAMA_HASH";
case MEMCACHED_BEHAVIOR_BINARY_PROTOCOL: return "MEMCACHED_BEHAVIOR_BINARY_PROTOCOL";
{
memcached_return_t rc;
- if (not self)
+ if (self == NULL)
+ {
return MEMCACHED_INVALID_ARGUMENTS;
+ }
- if (not host_map)
+ if (host_map == NULL)
+ {
return MEMCACHED_INVALID_ARGUMENTS;
+ }
memcached_server_distribution_t old= memcached_behavior_get_distribution(self);
projects / m6w6 / libmemcached / blobdiff