1 /* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
5 * Copyright (C) 2011 Data Differential, http://datadifferential.com/
6 * Copyright (C) 2006-2009 Brian Aker All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are
12 * * Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * * Redistributions in binary form must reproduce the above
16 * copyright notice, this list of conditions and the following disclaimer
17 * in the documentation and/or other materials provided with the
20 * * The names of its contributors may not be used to endorse or
21 * promote products derived from this software without specific prior
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
27 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
28 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
29 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
31 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 #include <libmemcached/common.h>
39 #include <libmemcached/options.hpp>
40 #include <libmemcached/virtual_bucket.h>
43 #include <sys/types.h>
46 This function is used to modify the behavior of running client.
48 We quit all connections so we can reset the sockets.
51 memcached_return_t
memcached_behavior_set(memcached_st
*ptr
,
52 const memcached_behavior_t flag
,
57 return MEMCACHED_INVALID_ARGUMENTS
;
62 case MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS
:
63 ptr
->number_of_replicas
= (uint32_t)data
;
66 case MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK
:
67 ptr
->io_msg_watermark
= (uint32_t) data
;
70 case MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK
:
71 ptr
->io_bytes_watermark
= (uint32_t)data
;
74 case MEMCACHED_BEHAVIOR_IO_KEY_PREFETCH
:
75 ptr
->io_key_prefetch
= (uint32_t)data
;
78 case MEMCACHED_BEHAVIOR_SND_TIMEOUT
:
79 ptr
->snd_timeout
= (int32_t)data
;
82 case MEMCACHED_BEHAVIOR_RCV_TIMEOUT
:
83 ptr
->rcv_timeout
= (int32_t)data
;
86 case MEMCACHED_BEHAVIOR_REMOVE_FAILED_SERVERS
:
87 ptr
->flags
.auto_eject_hosts
= bool(data
);
89 case MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT
:
92 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
93 memcached_literal_param("MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT requires a value greater then zero."));
95 ptr
->server_failure_limit
= uint32_t(data
);
98 case MEMCACHED_BEHAVIOR_BINARY_PROTOCOL
:
99 send_quit(ptr
); // We need t shutdown all of the connections to make sure we do the correct protocol
102 ptr
->flags
.verify_key
= false;
104 ptr
->flags
.binary_protocol
= bool(data
);
107 case MEMCACHED_BEHAVIOR_SUPPORT_CAS
:
108 ptr
->flags
.support_cas
= bool(data
);
111 case MEMCACHED_BEHAVIOR_NO_BLOCK
:
112 ptr
->flags
.no_block
= bool(data
);
116 case MEMCACHED_BEHAVIOR_BUFFER_REQUESTS
:
117 ptr
->flags
.buffer_requests
= bool(data
);
121 case MEMCACHED_BEHAVIOR_USE_UDP
:
122 if (memcached_server_count(ptr
))
124 return MEMCACHED_FAILURE
;
126 ptr
->flags
.use_udp
= bool(data
);
129 ptr
->flags
.no_reply
= bool(data
);
133 case MEMCACHED_BEHAVIOR_TCP_NODELAY
:
134 ptr
->flags
.tcp_nodelay
= bool(data
);
138 case MEMCACHED_BEHAVIOR_TCP_KEEPALIVE
:
139 ptr
->flags
.tcp_keepalive
= bool(data
);
143 case MEMCACHED_BEHAVIOR_DISTRIBUTION
:
144 return memcached_behavior_set_distribution(ptr
, (memcached_server_distribution_t
)data
);
146 case MEMCACHED_BEHAVIOR_KETAMA
:
149 return memcached_behavior_set_distribution(ptr
, MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
);
151 return memcached_behavior_set_distribution(ptr
, MEMCACHED_DISTRIBUTION_MODULA
);
154 case MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED
:
156 (void)memcached_behavior_set_key_hash(ptr
, MEMCACHED_HASH_MD5
);
157 (void)memcached_behavior_set_distribution_hash(ptr
, MEMCACHED_HASH_MD5
);
158 ptr
->ketama
.weighted
= bool(data
);
160 @note We try to keep the same distribution going. This should be deprecated and rewritten.
162 return memcached_behavior_set_distribution(ptr
, MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
);
165 case MEMCACHED_BEHAVIOR_HASH
:
166 return memcached_behavior_set_key_hash(ptr
, (memcached_hash_t
)(data
));
168 case MEMCACHED_BEHAVIOR_KETAMA_HASH
:
169 return memcached_behavior_set_distribution_hash(ptr
, (memcached_hash_t
)(data
));
171 case MEMCACHED_BEHAVIOR_CACHE_LOOKUPS
:
172 return memcached_set_error(*ptr
, MEMCACHED_DEPRECATED
, MEMCACHED_AT
,
173 memcached_literal_param("MEMCACHED_BEHAVIOR_CACHE_LOOKUPS has been deprecated."));
175 case MEMCACHED_BEHAVIOR_VERIFY_KEY
:
176 if (ptr
->flags
.binary_protocol
)
177 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
178 memcached_literal_param("MEMCACHED_BEHAVIOR_VERIFY_KEY if the binary protocol has been enabled."));
179 ptr
->flags
.verify_key
= bool(data
);
182 case MEMCACHED_BEHAVIOR_SORT_HOSTS
:
184 ptr
->flags
.use_sort_hosts
= bool(data
);
185 run_distribution(ptr
);
190 case MEMCACHED_BEHAVIOR_POLL_TIMEOUT
:
191 ptr
->poll_timeout
= (int32_t)data
;
194 case MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT
:
195 ptr
->connect_timeout
= (int32_t)data
;
198 case MEMCACHED_BEHAVIOR_RETRY_TIMEOUT
:
201 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
202 memcached_literal_param("MEMCACHED_BEHAVIOR_RETRY_TIMEOUT requires a value greater then zero."));
204 ptr
->retry_timeout
= int32_t(data
);
207 case MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE
:
208 ptr
->send_size
= (int32_t)data
;
212 case MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE
:
213 ptr
->recv_size
= (int32_t)data
;
217 case MEMCACHED_BEHAVIOR_TCP_KEEPIDLE
:
218 ptr
->tcp_keepidle
= (uint32_t)data
;
222 case MEMCACHED_BEHAVIOR_USER_DATA
:
223 return memcached_set_error(*ptr
, MEMCACHED_DEPRECATED
, MEMCACHED_AT
,
224 memcached_literal_param("MEMCACHED_BEHAVIOR_USER_DATA deprecated."));
226 case MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY
:
227 ptr
->flags
.hash_with_namespace
= bool(data
);
230 case MEMCACHED_BEHAVIOR_NOREPLY
:
231 ptr
->flags
.no_reply
= bool(data
);
234 case MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS
:
235 ptr
->flags
.auto_eject_hosts
= bool(data
);
238 case MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ
:
239 srandom((uint32_t) time(NULL
));
240 ptr
->flags
.randomize_replica_read
= bool(data
);
243 case MEMCACHED_BEHAVIOR_CORK
:
244 return memcached_set_error(*ptr
, MEMCACHED_DEPRECATED
, MEMCACHED_AT
,
245 memcached_literal_param("MEMCACHED_BEHAVIOR_CORK is now incorporated into the driver by default."));
247 case MEMCACHED_BEHAVIOR_LOAD_FROM_FILE
:
248 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
249 memcached_literal_param("MEMCACHED_BEHAVIOR_LOAD_FROM_FILE can not be set with memcached_behavior_set()"));
251 case MEMCACHED_BEHAVIOR_MAX
:
253 /* Shouldn't get here */
254 assert_msg(0, "Invalid behavior passed to memcached_behavior_set()");
255 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
256 memcached_literal_param("Invalid behavior passed to memcached_behavior_set()"));
259 return MEMCACHED_SUCCESS
;
262 bool _is_auto_eject_host(const memcached_st
*ptr
)
264 return ptr
->flags
.auto_eject_hosts
;
267 uint64_t memcached_behavior_get(memcached_st
*ptr
,
268 const memcached_behavior_t flag
)
272 return MEMCACHED_INVALID_ARGUMENTS
;
277 case MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS
:
278 return ptr
->number_of_replicas
;
280 case MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK
:
281 return ptr
->io_msg_watermark
;
283 case MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK
:
284 return ptr
->io_bytes_watermark
;
286 case MEMCACHED_BEHAVIOR_IO_KEY_PREFETCH
:
287 return ptr
->io_key_prefetch
;
289 case MEMCACHED_BEHAVIOR_BINARY_PROTOCOL
:
290 return ptr
->flags
.binary_protocol
;
292 case MEMCACHED_BEHAVIOR_SUPPORT_CAS
:
293 return ptr
->flags
.support_cas
;
295 case MEMCACHED_BEHAVIOR_CACHE_LOOKUPS
:
298 case MEMCACHED_BEHAVIOR_NO_BLOCK
:
299 return ptr
->flags
.no_block
;
301 case MEMCACHED_BEHAVIOR_BUFFER_REQUESTS
:
302 return ptr
->flags
.buffer_requests
;
304 case MEMCACHED_BEHAVIOR_USE_UDP
:
305 return ptr
->flags
.use_udp
;
307 case MEMCACHED_BEHAVIOR_TCP_NODELAY
:
308 return ptr
->flags
.tcp_nodelay
;
310 case MEMCACHED_BEHAVIOR_VERIFY_KEY
:
311 return ptr
->flags
.verify_key
;
313 case MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED
:
314 return ptr
->ketama
.weighted
;
316 case MEMCACHED_BEHAVIOR_DISTRIBUTION
:
317 return ptr
->distribution
;
319 case MEMCACHED_BEHAVIOR_KETAMA
:
320 return (ptr
->distribution
== MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
) ? (uint64_t) 1 : 0;
322 case MEMCACHED_BEHAVIOR_HASH
:
323 return hashkit_get_function(&ptr
->hashkit
);
325 case MEMCACHED_BEHAVIOR_KETAMA_HASH
:
326 return hashkit_get_function(&ptr
->hashkit
);
328 case MEMCACHED_BEHAVIOR_REMOVE_FAILED_SERVERS
:
329 case MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT
:
330 return ptr
->server_failure_limit
;
332 case MEMCACHED_BEHAVIOR_SORT_HOSTS
:
333 return ptr
->flags
.use_sort_hosts
;
335 case MEMCACHED_BEHAVIOR_POLL_TIMEOUT
:
336 return (uint64_t)ptr
->poll_timeout
;
338 case MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT
:
339 return (uint64_t)ptr
->connect_timeout
;
341 case MEMCACHED_BEHAVIOR_RETRY_TIMEOUT
:
342 return (uint64_t)ptr
->retry_timeout
;
344 case MEMCACHED_BEHAVIOR_SND_TIMEOUT
:
345 return (uint64_t)ptr
->snd_timeout
;
347 case MEMCACHED_BEHAVIOR_RCV_TIMEOUT
:
348 return (uint64_t)ptr
->rcv_timeout
;
350 case MEMCACHED_BEHAVIOR_TCP_KEEPIDLE
:
351 return (uint64_t)ptr
->tcp_keepidle
;
353 case MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE
:
356 socklen_t sock_length
= sizeof(int);
358 if (ptr
->send_size
!= -1) // If value is -1 then we are using the default
359 return (uint64_t) ptr
->send_size
;
361 memcached_server_write_instance_st instance
= memcached_server_instance_fetch(ptr
, 0);
363 if (instance
) // If we have an instance we test, otherwise we just set and pray
366 /* We just try the first host, and if it is down we return zero */
367 if (memcached_failed(memcached_connect(instance
)))
372 if (memcached_failed(memcached_io_wait_for_write(instance
)))
377 if (getsockopt(instance
->fd
, SOL_SOCKET
, SO_SNDBUF
, &sock_size
, &sock_length
) < 0)
379 memcached_set_errno(*ptr
, errno
, MEMCACHED_AT
);
380 return 0; /* Zero means error */
384 return (uint64_t) sock_size
;
387 case MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE
:
390 socklen_t sock_length
= sizeof(int);
392 if (ptr
->recv_size
!= -1) // If value is -1 then we are using the default
393 return (uint64_t) ptr
->recv_size
;
395 memcached_server_write_instance_st instance
= memcached_server_instance_fetch(ptr
, 0);
402 /* We just try the first host, and if it is down we return zero */
403 if (memcached_failed(memcached_connect(instance
)))
408 if (memcached_failed(memcached_io_wait_for_write(instance
)))
413 if (getsockopt(instance
->fd
, SOL_SOCKET
, SO_RCVBUF
, &sock_size
, &sock_length
) < 0)
415 memcached_set_errno(*ptr
, errno
, MEMCACHED_AT
);
416 return 0; /* Zero means error */
421 return (uint64_t) sock_size
;
424 case MEMCACHED_BEHAVIOR_USER_DATA
:
425 memcached_set_error(*ptr
, MEMCACHED_DEPRECATED
, MEMCACHED_AT
,
426 memcached_literal_param("MEMCACHED_BEHAVIOR_USER_DATA deprecated."));
429 case MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY
:
430 return ptr
->flags
.hash_with_namespace
;
432 case MEMCACHED_BEHAVIOR_NOREPLY
:
433 return ptr
->flags
.no_reply
;
435 case MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS
:
436 return ptr
->flags
.auto_eject_hosts
;
438 case MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ
:
439 return ptr
->flags
.randomize_replica_read
;
441 case MEMCACHED_BEHAVIOR_CORK
:
448 case MEMCACHED_BEHAVIOR_TCP_KEEPALIVE
:
449 return ptr
->flags
.tcp_keepalive
;
451 case MEMCACHED_BEHAVIOR_LOAD_FROM_FILE
:
452 return bool(memcached_parse_filename(ptr
));
454 case MEMCACHED_BEHAVIOR_MAX
:
456 assert_msg(0, "Invalid behavior passed to memcached_behavior_set()");
464 memcached_return_t
memcached_behavior_set_distribution(memcached_st
*ptr
, memcached_server_distribution_t type
)
466 if (type
< MEMCACHED_DISTRIBUTION_CONSISTENT_MAX
)
468 if (MEMCACHED_DISTRIBUTION_CONSISTENT_WEIGHTED
)
470 ptr
->ketama
.weighted
= true;
474 ptr
->ketama
.weighted
= false;
477 ptr
->distribution
= type
;
478 run_distribution(ptr
);
480 return MEMCACHED_SUCCESS
;
483 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
484 memcached_literal_param("Invalid memcached_server_distribution_t"));
488 memcached_server_distribution_t
memcached_behavior_get_distribution(memcached_st
*ptr
)
490 return ptr
->distribution
;
493 memcached_return_t
memcached_behavior_set_key_hash(memcached_st
*ptr
, memcached_hash_t type
)
495 if (hashkit_success(hashkit_set_function(&ptr
->hashkit
, (hashkit_hash_algorithm_t
)type
)))
496 return MEMCACHED_SUCCESS
;
498 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
499 memcached_literal_param("Invalid memcached_hash_t()"));
502 memcached_hash_t
memcached_behavior_get_key_hash(memcached_st
*ptr
)
504 return (memcached_hash_t
)hashkit_get_function(&ptr
->hashkit
);
507 memcached_return_t
memcached_behavior_set_distribution_hash(memcached_st
*ptr
, memcached_hash_t type
)
509 if (hashkit_success(hashkit_set_distribution_function(&ptr
->hashkit
, (hashkit_hash_algorithm_t
)type
)))
510 return MEMCACHED_SUCCESS
;
512 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
513 memcached_literal_param("Invalid memcached_hash_t()"));
516 memcached_hash_t
memcached_behavior_get_distribution_hash(memcached_st
*ptr
)
518 return (memcached_hash_t
)hashkit_get_function(&ptr
->hashkit
);
521 const char *libmemcached_string_behavior(const memcached_behavior_t flag
)
525 case MEMCACHED_BEHAVIOR_NO_BLOCK
: return "MEMCACHED_BEHAVIOR_NO_BLOCK";
526 case MEMCACHED_BEHAVIOR_TCP_NODELAY
: return "MEMCACHED_BEHAVIOR_TCP_NODELAY";
527 case MEMCACHED_BEHAVIOR_HASH
: return "MEMCACHED_BEHAVIOR_HASH";
528 case MEMCACHED_BEHAVIOR_KETAMA
: return "MEMCACHED_BEHAVIOR_KETAMA";
529 case MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE
: return "MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE";
530 case MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE
: return "MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE";
531 case MEMCACHED_BEHAVIOR_CACHE_LOOKUPS
: return "MEMCACHED_BEHAVIOR_CACHE_LOOKUPS";
532 case MEMCACHED_BEHAVIOR_SUPPORT_CAS
: return "MEMCACHED_BEHAVIOR_SUPPORT_CAS";
533 case MEMCACHED_BEHAVIOR_POLL_TIMEOUT
: return "MEMCACHED_BEHAVIOR_POLL_TIMEOUT";
534 case MEMCACHED_BEHAVIOR_DISTRIBUTION
: return "MEMCACHED_BEHAVIOR_DISTRIBUTION";
535 case MEMCACHED_BEHAVIOR_BUFFER_REQUESTS
: return "MEMCACHED_BEHAVIOR_BUFFER_REQUESTS";
536 case MEMCACHED_BEHAVIOR_USER_DATA
: return "MEMCACHED_BEHAVIOR_USER_DATA";
537 case MEMCACHED_BEHAVIOR_SORT_HOSTS
: return "MEMCACHED_BEHAVIOR_SORT_HOSTS";
538 case MEMCACHED_BEHAVIOR_VERIFY_KEY
: return "MEMCACHED_BEHAVIOR_VERIFY_KEY";
539 case MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT
: return "MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT";
540 case MEMCACHED_BEHAVIOR_RETRY_TIMEOUT
: return "MEMCACHED_BEHAVIOR_RETRY_TIMEOUT";
541 case MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED
: return "MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED";
542 case MEMCACHED_BEHAVIOR_KETAMA_HASH
: return "MEMCACHED_BEHAVIOR_KETAMA_HASH";
543 case MEMCACHED_BEHAVIOR_BINARY_PROTOCOL
: return "MEMCACHED_BEHAVIOR_BINARY_PROTOCOL";
544 case MEMCACHED_BEHAVIOR_SND_TIMEOUT
: return "MEMCACHED_BEHAVIOR_SND_TIMEOUT";
545 case MEMCACHED_BEHAVIOR_RCV_TIMEOUT
: return "MEMCACHED_BEHAVIOR_RCV_TIMEOUT";
546 case MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT
: return "MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT";
547 case MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK
: return "MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK";
548 case MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK
: return "MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK";
549 case MEMCACHED_BEHAVIOR_IO_KEY_PREFETCH
: return "MEMCACHED_BEHAVIOR_IO_KEY_PREFETCH";
550 case MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY
: return "MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY";
551 case MEMCACHED_BEHAVIOR_NOREPLY
: return "MEMCACHED_BEHAVIOR_NOREPLY";
552 case MEMCACHED_BEHAVIOR_USE_UDP
: return "MEMCACHED_BEHAVIOR_USE_UDP";
553 case MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS
: return "MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS";
554 case MEMCACHED_BEHAVIOR_REMOVE_FAILED_SERVERS
: return "MEMCACHED_BEHAVIOR_REMOVE_FAILED_SERVERS";
555 case MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS
: return "MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS";
556 case MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ
: return "MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ";
557 case MEMCACHED_BEHAVIOR_CORK
: return "MEMCACHED_BEHAVIOR_CORK";
558 case MEMCACHED_BEHAVIOR_TCP_KEEPALIVE
: return "MEMCACHED_BEHAVIOR_TCP_KEEPALIVE";
559 case MEMCACHED_BEHAVIOR_TCP_KEEPIDLE
: return "MEMCACHED_BEHAVIOR_TCP_KEEPIDLE";
560 case MEMCACHED_BEHAVIOR_LOAD_FROM_FILE
: return "MEMCACHED_BEHAVIOR_LOAD_FROM_FILE";
562 case MEMCACHED_BEHAVIOR_MAX
: return "INVALID memcached_behavior_t";
566 const char *libmemcached_string_distribution(const memcached_server_distribution_t flag
)
570 case MEMCACHED_DISTRIBUTION_MODULA
: return "MEMCACHED_DISTRIBUTION_MODULA";
571 case MEMCACHED_DISTRIBUTION_CONSISTENT
: return "MEMCACHED_DISTRIBUTION_CONSISTENT";
572 case MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
: return "MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA";
573 case MEMCACHED_DISTRIBUTION_RANDOM
: return "MEMCACHED_DISTRIBUTION_RANDOM";
574 case MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA_SPY
: return "MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA_SPY";
575 case MEMCACHED_DISTRIBUTION_CONSISTENT_WEIGHTED
: return "MEMCACHED_DISTRIBUTION_CONSISTENT_WEIGHTED";
576 case MEMCACHED_DISTRIBUTION_VIRTUAL_BUCKET
: return "MEMCACHED_DISTRIBUTION_VIRTUAL_BUCKET";
578 case MEMCACHED_DISTRIBUTION_CONSISTENT_MAX
: return "INVALID memcached_server_distribution_t";
582 memcached_return_t
memcached_bucket_set(memcached_st
*self
,
583 const uint32_t *host_map
,
584 const uint32_t *forward_map
,
585 const uint32_t buckets
,
586 const uint32_t replicas
)
588 memcached_return_t rc
;
591 return MEMCACHED_INVALID_ARGUMENTS
;
594 return MEMCACHED_INVALID_ARGUMENTS
;
596 memcached_server_distribution_t old
= memcached_behavior_get_distribution(self
);
598 if (memcached_failed(rc
=memcached_behavior_set_distribution(self
, MEMCACHED_DISTRIBUTION_VIRTUAL_BUCKET
)))
603 if (memcached_failed(rc
= memcached_virtual_bucket_create(self
, host_map
, forward_map
, buckets
, replicas
)))
605 memcached_behavior_set_distribution(self
, old
);