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/virtual_bucket.h>
42 #include <sys/types.h>
45 This function is used to modify the behavior of running client.
47 We quit all connections so we can reset the sockets.
50 memcached_return_t
memcached_behavior_set(memcached_st
*ptr
,
51 const memcached_behavior_t flag
,
55 return MEMCACHED_INVALID_ARGUMENTS
;
59 case MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS
:
60 ptr
->number_of_replicas
= (uint32_t)data
;
63 case MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK
:
64 ptr
->io_msg_watermark
= (uint32_t) data
;
67 case MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK
:
68 ptr
->io_bytes_watermark
= (uint32_t)data
;
71 case MEMCACHED_BEHAVIOR_IO_KEY_PREFETCH
:
72 ptr
->io_key_prefetch
= (uint32_t)data
;
75 case MEMCACHED_BEHAVIOR_SND_TIMEOUT
:
76 ptr
->snd_timeout
= (int32_t)data
;
79 case MEMCACHED_BEHAVIOR_RCV_TIMEOUT
:
80 ptr
->rcv_timeout
= (int32_t)data
;
83 case MEMCACHED_BEHAVIOR_REMOVE_FAILED_SERVERS
:
84 ptr
->flags
.auto_eject_hosts
= bool(data
);
86 case MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT
:
87 ptr
->server_failure_limit
= (uint32_t)data
;
90 case MEMCACHED_BEHAVIOR_BINARY_PROTOCOL
:
91 send_quit(ptr
); // We need t shutdown all of the connections to make sure we do the correct protocol
94 ptr
->flags
.verify_key
= false;
96 ptr
->flags
.binary_protocol
= bool(data
);
99 case MEMCACHED_BEHAVIOR_SUPPORT_CAS
:
100 ptr
->flags
.support_cas
= bool(data
);
103 case MEMCACHED_BEHAVIOR_NO_BLOCK
:
104 ptr
->flags
.no_block
= bool(data
);
108 case MEMCACHED_BEHAVIOR_BUFFER_REQUESTS
:
109 ptr
->flags
.buffer_requests
= bool(data
);
113 case MEMCACHED_BEHAVIOR_USE_UDP
:
114 if (memcached_server_count(ptr
))
116 return MEMCACHED_FAILURE
;
118 ptr
->flags
.use_udp
= bool(data
);
121 ptr
->flags
.no_reply
= bool(data
);
125 case MEMCACHED_BEHAVIOR_TCP_NODELAY
:
126 ptr
->flags
.tcp_nodelay
= bool(data
);
130 case MEMCACHED_BEHAVIOR_TCP_KEEPALIVE
:
131 ptr
->flags
.tcp_keepalive
= bool(data
);
135 case MEMCACHED_BEHAVIOR_DISTRIBUTION
:
136 return memcached_behavior_set_distribution(ptr
, (memcached_server_distribution_t
)data
);
138 case MEMCACHED_BEHAVIOR_KETAMA
:
141 return memcached_behavior_set_distribution(ptr
, MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
);
143 return memcached_behavior_set_distribution(ptr
, MEMCACHED_DISTRIBUTION_MODULA
);
146 case MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED
:
148 (void)memcached_behavior_set_key_hash(ptr
, MEMCACHED_HASH_MD5
);
149 (void)memcached_behavior_set_distribution_hash(ptr
, MEMCACHED_HASH_MD5
);
150 ptr
->ketama
.weighted
= bool(data
);
152 @note We try to keep the same distribution going. This should be deprecated and rewritten.
154 return memcached_behavior_set_distribution(ptr
, MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
);
157 case MEMCACHED_BEHAVIOR_HASH
:
158 return memcached_behavior_set_key_hash(ptr
, (memcached_hash_t
)(data
));
160 case MEMCACHED_BEHAVIOR_KETAMA_HASH
:
161 return memcached_behavior_set_distribution_hash(ptr
, (memcached_hash_t
)(data
));
163 case MEMCACHED_BEHAVIOR_CACHE_LOOKUPS
:
164 return memcached_set_error(*ptr
, MEMCACHED_DEPRECATED
, MEMCACHED_AT
,
165 memcached_literal_param("MEMCACHED_BEHAVIOR_CACHE_LOOKUPS has been deprecated."));
167 case MEMCACHED_BEHAVIOR_VERIFY_KEY
:
168 if (ptr
->flags
.binary_protocol
)
169 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
170 memcached_literal_param("MEMCACHED_BEHAVIOR_VERIFY_KEY if the binary protocol has been enabled."));
171 ptr
->flags
.verify_key
= bool(data
);
174 case MEMCACHED_BEHAVIOR_SORT_HOSTS
:
176 ptr
->flags
.use_sort_hosts
= bool(data
);
177 run_distribution(ptr
);
182 case MEMCACHED_BEHAVIOR_POLL_TIMEOUT
:
183 ptr
->poll_timeout
= (int32_t)data
;
186 case MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT
:
187 ptr
->connect_timeout
= (int32_t)data
;
190 case MEMCACHED_BEHAVIOR_RETRY_TIMEOUT
:
191 ptr
->retry_timeout
= (int32_t)data
;
194 case MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE
:
195 ptr
->send_size
= (int32_t)data
;
199 case MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE
:
200 ptr
->recv_size
= (int32_t)data
;
204 case MEMCACHED_BEHAVIOR_TCP_KEEPIDLE
:
205 ptr
->tcp_keepidle
= (uint32_t)data
;
209 case MEMCACHED_BEHAVIOR_USER_DATA
:
210 return memcached_set_error(*ptr
, MEMCACHED_DEPRECATED
, MEMCACHED_AT
,
211 memcached_literal_param("MEMCACHED_BEHAVIOR_USER_DATA deprecated."));
213 case MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY
:
214 ptr
->flags
.hash_with_prefix_key
= bool(data
);
217 case MEMCACHED_BEHAVIOR_NOREPLY
:
218 ptr
->flags
.no_reply
= bool(data
);
221 case MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS
:
222 ptr
->flags
.auto_eject_hosts
= bool(data
);
225 case MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ
:
226 srandom((uint32_t) time(NULL
));
227 ptr
->flags
.randomize_replica_read
= bool(data
);
230 case MEMCACHED_BEHAVIOR_CORK
:
231 return memcached_set_error(*ptr
, MEMCACHED_DEPRECATED
, MEMCACHED_AT
,
232 memcached_literal_param("MEMCACHED_BEHAVIOR_CORK is now incorporated into the driver by default."));
234 case MEMCACHED_BEHAVIOR_LOAD_FROM_FILE
:
235 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
236 memcached_literal_param("MEMCACHED_BEHAVIOR_LOAD_FROM_FILE can not be set with memcached_behavior_set()"));
238 case MEMCACHED_BEHAVIOR_MAX
:
240 /* Shouldn't get here */
241 WATCHPOINT_ASSERT(0);
242 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
243 memcached_literal_param("Invalid behavior passed to memcached_behavior_set()"));
246 return MEMCACHED_SUCCESS
;
249 bool _is_auto_eject_host(const memcached_st
*ptr
)
251 return ptr
->flags
.auto_eject_hosts
;
254 uint64_t memcached_behavior_get(memcached_st
*ptr
,
255 const memcached_behavior_t flag
)
259 case MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS
:
260 return ptr
->number_of_replicas
;
262 case MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK
:
263 return ptr
->io_msg_watermark
;
265 case MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK
:
266 return ptr
->io_bytes_watermark
;
268 case MEMCACHED_BEHAVIOR_IO_KEY_PREFETCH
:
269 return ptr
->io_key_prefetch
;
271 case MEMCACHED_BEHAVIOR_BINARY_PROTOCOL
:
272 return ptr
->flags
.binary_protocol
;
274 case MEMCACHED_BEHAVIOR_SUPPORT_CAS
:
275 return ptr
->flags
.support_cas
;
277 case MEMCACHED_BEHAVIOR_CACHE_LOOKUPS
:
280 case MEMCACHED_BEHAVIOR_NO_BLOCK
:
281 return ptr
->flags
.no_block
;
283 case MEMCACHED_BEHAVIOR_BUFFER_REQUESTS
:
284 return ptr
->flags
.buffer_requests
;
286 case MEMCACHED_BEHAVIOR_USE_UDP
:
287 return ptr
->flags
.use_udp
;
289 case MEMCACHED_BEHAVIOR_TCP_NODELAY
:
290 return ptr
->flags
.tcp_nodelay
;
292 case MEMCACHED_BEHAVIOR_VERIFY_KEY
:
293 return ptr
->flags
.verify_key
;
295 case MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED
:
296 return ptr
->ketama
.weighted
;
298 case MEMCACHED_BEHAVIOR_DISTRIBUTION
:
299 return ptr
->distribution
;
301 case MEMCACHED_BEHAVIOR_KETAMA
:
302 return (ptr
->distribution
== MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
) ? (uint64_t) 1 : 0;
304 case MEMCACHED_BEHAVIOR_HASH
:
305 return hashkit_get_function(&ptr
->hashkit
);
307 case MEMCACHED_BEHAVIOR_KETAMA_HASH
:
308 return hashkit_get_function(&ptr
->hashkit
);
310 case MEMCACHED_BEHAVIOR_REMOVE_FAILED_SERVERS
:
311 case MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT
:
312 return ptr
->server_failure_limit
;
314 case MEMCACHED_BEHAVIOR_SORT_HOSTS
:
315 return ptr
->flags
.use_sort_hosts
;
317 case MEMCACHED_BEHAVIOR_POLL_TIMEOUT
:
318 return (uint64_t)ptr
->poll_timeout
;
320 case MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT
:
321 return (uint64_t)ptr
->connect_timeout
;
323 case MEMCACHED_BEHAVIOR_RETRY_TIMEOUT
:
324 return (uint64_t)ptr
->retry_timeout
;
326 case MEMCACHED_BEHAVIOR_SND_TIMEOUT
:
327 return (uint64_t)ptr
->snd_timeout
;
329 case MEMCACHED_BEHAVIOR_RCV_TIMEOUT
:
330 return (uint64_t)ptr
->rcv_timeout
;
332 case MEMCACHED_BEHAVIOR_TCP_KEEPIDLE
:
333 return (uint64_t)ptr
->tcp_keepidle
;
335 case MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE
:
338 socklen_t sock_length
= sizeof(int);
340 if (ptr
->send_size
!= -1) // If value is -1 then we are using the default
341 return (uint64_t) ptr
->send_size
;
343 memcached_server_write_instance_st instance
= memcached_server_instance_fetch(ptr
, 0);
345 if (instance
) // If we have an instance we test, otherwise we just set and pray
348 /* We just try the first host, and if it is down we return zero */
349 if (memcached_failed(memcached_connect(instance
)))
354 if (memcached_failed(memcached_io_wait_for_write(instance
)))
359 if (getsockopt(instance
->fd
, SOL_SOCKET
, SO_SNDBUF
, &sock_size
, &sock_length
) < 0)
361 memcached_set_errno(*ptr
, errno
, MEMCACHED_AT
);
362 return 0; /* Zero means error */
366 return (uint64_t) sock_size
;
369 case MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE
:
372 socklen_t sock_length
= sizeof(int);
374 if (ptr
->recv_size
!= -1) // If value is -1 then we are using the default
375 return (uint64_t) ptr
->recv_size
;
377 memcached_server_write_instance_st instance
= memcached_server_instance_fetch(ptr
, 0);
384 /* We just try the first host, and if it is down we return zero */
385 if (memcached_failed(memcached_connect(instance
)))
390 if (memcached_failed(memcached_io_wait_for_write(instance
)))
395 if (getsockopt(instance
->fd
, SOL_SOCKET
, SO_RCVBUF
, &sock_size
, &sock_length
) < 0)
397 memcached_set_errno(*ptr
, errno
, MEMCACHED_AT
);
398 return 0; /* Zero means error */
403 return (uint64_t) sock_size
;
406 case MEMCACHED_BEHAVIOR_USER_DATA
:
407 memcached_set_error(*ptr
, MEMCACHED_DEPRECATED
, MEMCACHED_AT
,
408 memcached_literal_param("MEMCACHED_BEHAVIOR_USER_DATA deprecated."));
411 case MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY
:
412 return ptr
->flags
.hash_with_prefix_key
;
414 case MEMCACHED_BEHAVIOR_NOREPLY
:
415 return ptr
->flags
.no_reply
;
417 case MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS
:
418 return ptr
->flags
.auto_eject_hosts
;
420 case MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ
:
421 return ptr
->flags
.randomize_replica_read
;
423 case MEMCACHED_BEHAVIOR_CORK
:
430 case MEMCACHED_BEHAVIOR_TCP_KEEPALIVE
:
431 return ptr
->flags
.tcp_keepalive
;
433 case MEMCACHED_BEHAVIOR_LOAD_FROM_FILE
:
434 return bool(memcached_parse_filename(ptr
));
436 case MEMCACHED_BEHAVIOR_MAX
:
438 WATCHPOINT_ASSERT(0); /* Programming mistake if it gets this far */
446 memcached_return_t
memcached_behavior_set_distribution(memcached_st
*ptr
, memcached_server_distribution_t type
)
448 if (type
< MEMCACHED_DISTRIBUTION_CONSISTENT_MAX
)
450 if (MEMCACHED_DISTRIBUTION_CONSISTENT_WEIGHTED
)
452 ptr
->ketama
.weighted
= true;
456 ptr
->ketama
.weighted
= false;
458 ptr
->distribution
= type
;
459 run_distribution(ptr
);
460 return MEMCACHED_SUCCESS
;
463 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
464 memcached_literal_param("Invalid memcached_server_distribution_t"));
468 memcached_server_distribution_t
memcached_behavior_get_distribution(memcached_st
*ptr
)
470 return ptr
->distribution
;
473 memcached_return_t
memcached_behavior_set_key_hash(memcached_st
*ptr
, memcached_hash_t type
)
475 if (hashkit_success(hashkit_set_function(&ptr
->hashkit
, (hashkit_hash_algorithm_t
)type
)))
476 return MEMCACHED_SUCCESS
;
478 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
479 memcached_literal_param("Invalid memcached_hash_t()"));
482 memcached_hash_t
memcached_behavior_get_key_hash(memcached_st
*ptr
)
484 return (memcached_hash_t
)hashkit_get_function(&ptr
->hashkit
);
487 memcached_return_t
memcached_behavior_set_distribution_hash(memcached_st
*ptr
, memcached_hash_t type
)
489 if (hashkit_success(hashkit_set_distribution_function(&ptr
->hashkit
, (hashkit_hash_algorithm_t
)type
)))
490 return MEMCACHED_SUCCESS
;
492 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
493 memcached_literal_param("Invalid memcached_hash_t()"));
496 memcached_hash_t
memcached_behavior_get_distribution_hash(memcached_st
*ptr
)
498 return (memcached_hash_t
)hashkit_get_function(&ptr
->hashkit
);
501 const char *libmemcached_string_behavior(const memcached_behavior_t flag
)
505 case MEMCACHED_BEHAVIOR_NO_BLOCK
: return "MEMCACHED_BEHAVIOR_NO_BLOCK";
506 case MEMCACHED_BEHAVIOR_TCP_NODELAY
: return "MEMCACHED_BEHAVIOR_TCP_NODELAY";
507 case MEMCACHED_BEHAVIOR_HASH
: return "MEMCACHED_BEHAVIOR_HASH";
508 case MEMCACHED_BEHAVIOR_KETAMA
: return "MEMCACHED_BEHAVIOR_KETAMA";
509 case MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE
: return "MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE";
510 case MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE
: return "MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE";
511 case MEMCACHED_BEHAVIOR_CACHE_LOOKUPS
: return "MEMCACHED_BEHAVIOR_CACHE_LOOKUPS";
512 case MEMCACHED_BEHAVIOR_SUPPORT_CAS
: return "MEMCACHED_BEHAVIOR_SUPPORT_CAS";
513 case MEMCACHED_BEHAVIOR_POLL_TIMEOUT
: return "MEMCACHED_BEHAVIOR_POLL_TIMEOUT";
514 case MEMCACHED_BEHAVIOR_DISTRIBUTION
: return "MEMCACHED_BEHAVIOR_DISTRIBUTION";
515 case MEMCACHED_BEHAVIOR_BUFFER_REQUESTS
: return "MEMCACHED_BEHAVIOR_BUFFER_REQUESTS";
516 case MEMCACHED_BEHAVIOR_USER_DATA
: return "MEMCACHED_BEHAVIOR_USER_DATA";
517 case MEMCACHED_BEHAVIOR_SORT_HOSTS
: return "MEMCACHED_BEHAVIOR_SORT_HOSTS";
518 case MEMCACHED_BEHAVIOR_VERIFY_KEY
: return "MEMCACHED_BEHAVIOR_VERIFY_KEY";
519 case MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT
: return "MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT";
520 case MEMCACHED_BEHAVIOR_RETRY_TIMEOUT
: return "MEMCACHED_BEHAVIOR_RETRY_TIMEOUT";
521 case MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED
: return "MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED";
522 case MEMCACHED_BEHAVIOR_KETAMA_HASH
: return "MEMCACHED_BEHAVIOR_KETAMA_HASH";
523 case MEMCACHED_BEHAVIOR_BINARY_PROTOCOL
: return "MEMCACHED_BEHAVIOR_BINARY_PROTOCOL";
524 case MEMCACHED_BEHAVIOR_SND_TIMEOUT
: return "MEMCACHED_BEHAVIOR_SND_TIMEOUT";
525 case MEMCACHED_BEHAVIOR_RCV_TIMEOUT
: return "MEMCACHED_BEHAVIOR_RCV_TIMEOUT";
526 case MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT
: return "MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT";
527 case MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK
: return "MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK";
528 case MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK
: return "MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK";
529 case MEMCACHED_BEHAVIOR_IO_KEY_PREFETCH
: return "MEMCACHED_BEHAVIOR_IO_KEY_PREFETCH";
530 case MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY
: return "MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY";
531 case MEMCACHED_BEHAVIOR_NOREPLY
: return "MEMCACHED_BEHAVIOR_NOREPLY";
532 case MEMCACHED_BEHAVIOR_USE_UDP
: return "MEMCACHED_BEHAVIOR_USE_UDP";
533 case MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS
: return "MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS";
534 case MEMCACHED_BEHAVIOR_REMOVE_FAILED_SERVERS
: return "MEMCACHED_BEHAVIOR_REMOVE_FAILED_SERVERS";
535 case MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS
: return "MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS";
536 case MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ
: return "MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ";
537 case MEMCACHED_BEHAVIOR_CORK
: return "MEMCACHED_BEHAVIOR_CORK";
538 case MEMCACHED_BEHAVIOR_TCP_KEEPALIVE
: return "MEMCACHED_BEHAVIOR_TCP_KEEPALIVE";
539 case MEMCACHED_BEHAVIOR_TCP_KEEPIDLE
: return "MEMCACHED_BEHAVIOR_TCP_KEEPIDLE";
540 case MEMCACHED_BEHAVIOR_LOAD_FROM_FILE
: return "MEMCACHED_BEHAVIOR_LOAD_FROM_FILE";
542 case MEMCACHED_BEHAVIOR_MAX
: return "INVALID memcached_behavior_t";
546 const char *libmemcached_string_distribution(const memcached_server_distribution_t flag
)
550 case MEMCACHED_DISTRIBUTION_MODULA
: return "MEMCACHED_DISTRIBUTION_MODULA";
551 case MEMCACHED_DISTRIBUTION_CONSISTENT
: return "MEMCACHED_DISTRIBUTION_CONSISTENT";
552 case MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
: return "MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA";
553 case MEMCACHED_DISTRIBUTION_RANDOM
: return "MEMCACHED_DISTRIBUTION_RANDOM";
554 case MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA_SPY
: return "MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA_SPY";
555 case MEMCACHED_DISTRIBUTION_CONSISTENT_WEIGHTED
: return "MEMCACHED_DISTRIBUTION_CONSISTENT_WEIGHTED";
556 case MEMCACHED_DISTRIBUTION_VIRTUAL_BUCKET
: return "MEMCACHED_DISTRIBUTION_VIRTUAL_BUCKET";
558 case MEMCACHED_DISTRIBUTION_CONSISTENT_MAX
: return "INVALID memcached_server_distribution_t";
562 memcached_return_t
memcached_bucket_set(memcached_st
*self
,
563 const uint32_t *host_map
,
564 const uint32_t *forward_map
,
565 const uint32_t buckets
,
566 const uint32_t replicas
)
568 memcached_return_t rc
;
571 return MEMCACHED_INVALID_ARGUMENTS
;
574 return MEMCACHED_INVALID_ARGUMENTS
;
576 memcached_server_distribution_t old
= memcached_behavior_get_distribution(self
);
578 if (memcached_failed(rc
=memcached_behavior_set_distribution(self
, MEMCACHED_DISTRIBUTION_VIRTUAL_BUCKET
)))
583 if (memcached_failed(rc
= memcached_virtual_bucket_create(self
, host_map
, forward_map
, buckets
, replicas
)))
585 memcached_behavior_set_distribution(self
, old
);