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 if (memcached_is_udp(ptr
))
119 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
120 memcached_literal_param("MEMCACHED_BEHAVIOR_BUFFER_REQUESTS cannot be set while MEMCACHED_BEHAVIOR_USE_UDP is enabled."));
122 ptr
->flags
.buffer_requests
= bool(data
);
126 case MEMCACHED_BEHAVIOR_USE_UDP
:
127 send_quit(ptr
); // We need t shutdown all of the connections to make sure we do the correct protocol
128 ptr
->flags
.use_udp
= bool(data
);
131 ptr
->flags
.reply
= false;
132 ptr
->flags
.buffer_requests
= false;
136 ptr
->flags
.reply
= true;
140 case MEMCACHED_BEHAVIOR_TCP_NODELAY
:
141 ptr
->flags
.tcp_nodelay
= bool(data
);
145 case MEMCACHED_BEHAVIOR_TCP_KEEPALIVE
:
146 ptr
->flags
.tcp_keepalive
= bool(data
);
150 case MEMCACHED_BEHAVIOR_DISTRIBUTION
:
151 return memcached_behavior_set_distribution(ptr
, (memcached_server_distribution_t
)data
);
153 case MEMCACHED_BEHAVIOR_KETAMA
:
157 return memcached_behavior_set_distribution(ptr
, MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
);
160 return memcached_behavior_set_distribution(ptr
, MEMCACHED_DISTRIBUTION_MODULA
);
163 case MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED
:
165 (void)memcached_behavior_set_key_hash(ptr
, MEMCACHED_HASH_MD5
);
166 (void)memcached_behavior_set_distribution_hash(ptr
, MEMCACHED_HASH_MD5
);
167 ptr
->ketama
.weighted
= bool(data
);
169 @note We try to keep the same distribution going. This should be deprecated and rewritten.
171 return memcached_behavior_set_distribution(ptr
, MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
);
174 case MEMCACHED_BEHAVIOR_HASH
:
175 return memcached_behavior_set_key_hash(ptr
, (memcached_hash_t
)(data
));
177 case MEMCACHED_BEHAVIOR_KETAMA_HASH
:
178 return memcached_behavior_set_distribution_hash(ptr
, (memcached_hash_t
)(data
));
180 case MEMCACHED_BEHAVIOR_CACHE_LOOKUPS
:
181 return memcached_set_error(*ptr
, MEMCACHED_DEPRECATED
, MEMCACHED_AT
,
182 memcached_literal_param("MEMCACHED_BEHAVIOR_CACHE_LOOKUPS has been deprecated."));
184 case MEMCACHED_BEHAVIOR_VERIFY_KEY
:
185 if (ptr
->flags
.binary_protocol
)
187 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
188 memcached_literal_param("MEMCACHED_BEHAVIOR_VERIFY_KEY if the binary protocol has been enabled."));
190 ptr
->flags
.verify_key
= bool(data
);
193 case MEMCACHED_BEHAVIOR_SORT_HOSTS
:
195 ptr
->flags
.use_sort_hosts
= bool(data
);
196 return run_distribution(ptr
);
199 case MEMCACHED_BEHAVIOR_POLL_TIMEOUT
:
200 ptr
->poll_timeout
= (int32_t)data
;
203 case MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT
:
204 ptr
->connect_timeout
= (int32_t)data
;
207 case MEMCACHED_BEHAVIOR_RETRY_TIMEOUT
:
210 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
211 memcached_literal_param("MEMCACHED_BEHAVIOR_RETRY_TIMEOUT requires a value greater then zero."));
213 ptr
->retry_timeout
= int32_t(data
);
216 case MEMCACHED_BEHAVIOR_DEAD_TIMEOUT
:
217 ptr
->dead_timeout
= int32_t(data
);
220 case MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE
:
221 ptr
->send_size
= (int32_t)data
;
225 case MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE
:
226 ptr
->recv_size
= (int32_t)data
;
230 case MEMCACHED_BEHAVIOR_TCP_KEEPIDLE
:
231 ptr
->tcp_keepidle
= (uint32_t)data
;
235 case MEMCACHED_BEHAVIOR_USER_DATA
:
236 return memcached_set_error(*ptr
, MEMCACHED_DEPRECATED
, MEMCACHED_AT
,
237 memcached_literal_param("MEMCACHED_BEHAVIOR_USER_DATA deprecated."));
239 case MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY
:
240 ptr
->flags
.hash_with_namespace
= bool(data
);
243 case MEMCACHED_BEHAVIOR_NOREPLY
:
244 if (memcached_is_udp(ptr
) and bool(data
) == false)
246 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
247 memcached_literal_param("MEMCACHED_BEHAVIOR_NOREPLY cannot be disabled while MEMCACHED_BEHAVIOR_USE_UDP is enabled."));
249 // We reverse the logic here to make it easier to understand throughout the
251 ptr
->flags
.reply
= bool(data
) ? false : true;
254 case MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS
:
255 ptr
->flags
.auto_eject_hosts
= bool(data
);
258 case MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ
:
259 srandom((uint32_t) time(NULL
));
260 ptr
->flags
.randomize_replica_read
= bool(data
);
263 case MEMCACHED_BEHAVIOR_CORK
:
264 return memcached_set_error(*ptr
, MEMCACHED_DEPRECATED
, MEMCACHED_AT
,
265 memcached_literal_param("MEMCACHED_BEHAVIOR_CORK is now incorporated into the driver by default."));
267 case MEMCACHED_BEHAVIOR_LOAD_FROM_FILE
:
268 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
269 memcached_literal_param("MEMCACHED_BEHAVIOR_LOAD_FROM_FILE can not be set with memcached_behavior_set()"));
271 case MEMCACHED_BEHAVIOR_MAX
:
273 /* Shouldn't get here */
274 assert_msg(0, "Invalid behavior passed to memcached_behavior_set()");
275 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
276 memcached_literal_param("Invalid behavior passed to memcached_behavior_set()"));
279 return MEMCACHED_SUCCESS
;
282 bool _is_auto_eject_host(const memcached_st
*ptr
)
284 return ptr
->flags
.auto_eject_hosts
;
287 uint64_t memcached_behavior_get(memcached_st
*ptr
,
288 const memcached_behavior_t flag
)
292 return MEMCACHED_INVALID_ARGUMENTS
;
297 case MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS
:
298 return ptr
->number_of_replicas
;
300 case MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK
:
301 return ptr
->io_msg_watermark
;
303 case MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK
:
304 return ptr
->io_bytes_watermark
;
306 case MEMCACHED_BEHAVIOR_IO_KEY_PREFETCH
:
307 return ptr
->io_key_prefetch
;
309 case MEMCACHED_BEHAVIOR_BINARY_PROTOCOL
:
310 return ptr
->flags
.binary_protocol
;
312 case MEMCACHED_BEHAVIOR_SUPPORT_CAS
:
313 return ptr
->flags
.support_cas
;
315 case MEMCACHED_BEHAVIOR_CACHE_LOOKUPS
:
318 case MEMCACHED_BEHAVIOR_NO_BLOCK
:
319 return ptr
->flags
.no_block
;
321 case MEMCACHED_BEHAVIOR_BUFFER_REQUESTS
:
322 return ptr
->flags
.buffer_requests
;
324 case MEMCACHED_BEHAVIOR_USE_UDP
:
325 return memcached_is_udp(ptr
);
327 case MEMCACHED_BEHAVIOR_TCP_NODELAY
:
328 return ptr
->flags
.tcp_nodelay
;
330 case MEMCACHED_BEHAVIOR_VERIFY_KEY
:
331 return ptr
->flags
.verify_key
;
333 case MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED
:
334 return ptr
->ketama
.weighted
;
336 case MEMCACHED_BEHAVIOR_DISTRIBUTION
:
337 return ptr
->distribution
;
339 case MEMCACHED_BEHAVIOR_KETAMA
:
340 return (ptr
->distribution
== MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
) ? (uint64_t) 1 : 0;
342 case MEMCACHED_BEHAVIOR_HASH
:
343 return hashkit_get_function(&ptr
->hashkit
);
345 case MEMCACHED_BEHAVIOR_KETAMA_HASH
:
346 return hashkit_get_function(&ptr
->hashkit
);
348 case MEMCACHED_BEHAVIOR_REMOVE_FAILED_SERVERS
:
349 case MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT
:
350 return ptr
->server_failure_limit
;
352 case MEMCACHED_BEHAVIOR_SORT_HOSTS
:
353 return ptr
->flags
.use_sort_hosts
;
355 case MEMCACHED_BEHAVIOR_POLL_TIMEOUT
:
356 return (uint64_t)ptr
->poll_timeout
;
358 case MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT
:
359 return (uint64_t)ptr
->connect_timeout
;
361 case MEMCACHED_BEHAVIOR_RETRY_TIMEOUT
:
362 return (uint64_t)ptr
->retry_timeout
;
364 case MEMCACHED_BEHAVIOR_DEAD_TIMEOUT
:
365 return uint64_t(ptr
->dead_timeout
);
367 case MEMCACHED_BEHAVIOR_SND_TIMEOUT
:
368 return (uint64_t)ptr
->snd_timeout
;
370 case MEMCACHED_BEHAVIOR_RCV_TIMEOUT
:
371 return (uint64_t)ptr
->rcv_timeout
;
373 case MEMCACHED_BEHAVIOR_TCP_KEEPIDLE
:
374 return (uint64_t)ptr
->tcp_keepidle
;
376 case MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE
:
379 socklen_t sock_length
= sizeof(int);
381 if (ptr
->send_size
!= -1) // If value is -1 then we are using the default
383 return (uint64_t) ptr
->send_size
;
386 memcached_server_write_instance_st instance
= memcached_server_instance_fetch(ptr
, 0);
388 if (instance
) // If we have an instance we test, otherwise we just set and pray
391 /* We just try the first host, and if it is down we return zero */
392 if (memcached_failed(memcached_connect(instance
)))
397 if (memcached_failed(memcached_io_wait_for_write(instance
)))
402 if (getsockopt(instance
->fd
, SOL_SOCKET
, SO_SNDBUF
, &sock_size
, &sock_length
) < 0)
404 memcached_set_errno(*ptr
, get_socket_errno(), MEMCACHED_AT
);
405 return 0; /* Zero means error */
409 return (uint64_t) sock_size
;
412 case MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE
:
415 socklen_t sock_length
= sizeof(int);
417 if (ptr
->recv_size
!= -1) // If value is -1 then we are using the default
418 return (uint64_t) ptr
->recv_size
;
420 memcached_server_write_instance_st instance
= memcached_server_instance_fetch(ptr
, 0);
427 /* We just try the first host, and if it is down we return zero */
428 if (memcached_failed(memcached_connect(instance
)))
433 if (memcached_failed(memcached_io_wait_for_write(instance
)))
438 if (getsockopt(instance
->fd
, SOL_SOCKET
, SO_RCVBUF
, &sock_size
, &sock_length
) < 0)
440 memcached_set_errno(*ptr
, get_socket_errno(), MEMCACHED_AT
);
441 return 0; /* Zero means error */
445 return (uint64_t) sock_size
;
448 case MEMCACHED_BEHAVIOR_USER_DATA
:
449 memcached_set_error(*ptr
, MEMCACHED_DEPRECATED
, MEMCACHED_AT
,
450 memcached_literal_param("MEMCACHED_BEHAVIOR_USER_DATA deprecated."));
453 case MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY
:
454 return ptr
->flags
.hash_with_namespace
;
456 case MEMCACHED_BEHAVIOR_NOREPLY
:
457 return ptr
->flags
.reply
? false : true;
459 case MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS
:
460 return ptr
->flags
.auto_eject_hosts
;
462 case MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ
:
463 return ptr
->flags
.randomize_replica_read
;
465 case MEMCACHED_BEHAVIOR_CORK
:
472 case MEMCACHED_BEHAVIOR_TCP_KEEPALIVE
:
473 return ptr
->flags
.tcp_keepalive
;
475 case MEMCACHED_BEHAVIOR_LOAD_FROM_FILE
:
476 return bool(memcached_parse_filename(ptr
));
478 case MEMCACHED_BEHAVIOR_MAX
:
480 assert_msg(0, "Invalid behavior passed to memcached_behavior_set()");
488 memcached_return_t
memcached_behavior_set_distribution(memcached_st
*ptr
, memcached_server_distribution_t type
)
490 if (type
< MEMCACHED_DISTRIBUTION_CONSISTENT_MAX
)
492 if (MEMCACHED_DISTRIBUTION_CONSISTENT_WEIGHTED
)
494 ptr
->ketama
.weighted
= true;
498 ptr
->ketama
.weighted
= false;
501 ptr
->distribution
= type
;
502 return run_distribution(ptr
);
505 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
506 memcached_literal_param("Invalid memcached_server_distribution_t"));
510 memcached_server_distribution_t
memcached_behavior_get_distribution(memcached_st
*ptr
)
512 return ptr
->distribution
;
515 memcached_return_t
memcached_behavior_set_key_hash(memcached_st
*ptr
, memcached_hash_t type
)
517 if (hashkit_success(hashkit_set_function(&ptr
->hashkit
, (hashkit_hash_algorithm_t
)type
)))
519 return MEMCACHED_SUCCESS
;
522 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
523 memcached_literal_param("Invalid memcached_hash_t()"));
526 memcached_hash_t
memcached_behavior_get_key_hash(memcached_st
*ptr
)
528 return (memcached_hash_t
)hashkit_get_function(&ptr
->hashkit
);
531 memcached_return_t
memcached_behavior_set_distribution_hash(memcached_st
*ptr
, memcached_hash_t type
)
533 if (hashkit_success(hashkit_set_distribution_function(&ptr
->hashkit
, (hashkit_hash_algorithm_t
)type
)))
534 return MEMCACHED_SUCCESS
;
536 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
537 memcached_literal_param("Invalid memcached_hash_t()"));
540 memcached_hash_t
memcached_behavior_get_distribution_hash(memcached_st
*ptr
)
542 return (memcached_hash_t
)hashkit_get_function(&ptr
->hashkit
);
545 const char *libmemcached_string_behavior(const memcached_behavior_t flag
)
549 case MEMCACHED_BEHAVIOR_NO_BLOCK
: return "MEMCACHED_BEHAVIOR_NO_BLOCK";
550 case MEMCACHED_BEHAVIOR_TCP_NODELAY
: return "MEMCACHED_BEHAVIOR_TCP_NODELAY";
551 case MEMCACHED_BEHAVIOR_HASH
: return "MEMCACHED_BEHAVIOR_HASH";
552 case MEMCACHED_BEHAVIOR_KETAMA
: return "MEMCACHED_BEHAVIOR_KETAMA";
553 case MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE
: return "MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE";
554 case MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE
: return "MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE";
555 case MEMCACHED_BEHAVIOR_CACHE_LOOKUPS
: return "MEMCACHED_BEHAVIOR_CACHE_LOOKUPS";
556 case MEMCACHED_BEHAVIOR_SUPPORT_CAS
: return "MEMCACHED_BEHAVIOR_SUPPORT_CAS";
557 case MEMCACHED_BEHAVIOR_POLL_TIMEOUT
: return "MEMCACHED_BEHAVIOR_POLL_TIMEOUT";
558 case MEMCACHED_BEHAVIOR_DISTRIBUTION
: return "MEMCACHED_BEHAVIOR_DISTRIBUTION";
559 case MEMCACHED_BEHAVIOR_BUFFER_REQUESTS
: return "MEMCACHED_BEHAVIOR_BUFFER_REQUESTS";
560 case MEMCACHED_BEHAVIOR_USER_DATA
: return "MEMCACHED_BEHAVIOR_USER_DATA";
561 case MEMCACHED_BEHAVIOR_SORT_HOSTS
: return "MEMCACHED_BEHAVIOR_SORT_HOSTS";
562 case MEMCACHED_BEHAVIOR_VERIFY_KEY
: return "MEMCACHED_BEHAVIOR_VERIFY_KEY";
563 case MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT
: return "MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT";
564 case MEMCACHED_BEHAVIOR_RETRY_TIMEOUT
: return "MEMCACHED_BEHAVIOR_RETRY_TIMEOUT";
565 case MEMCACHED_BEHAVIOR_DEAD_TIMEOUT
: return "MEMCACHED_BEHAVIOR_DEAD_TIMEOUT";
566 case MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED
: return "MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED";
567 case MEMCACHED_BEHAVIOR_KETAMA_HASH
: return "MEMCACHED_BEHAVIOR_KETAMA_HASH";
568 case MEMCACHED_BEHAVIOR_BINARY_PROTOCOL
: return "MEMCACHED_BEHAVIOR_BINARY_PROTOCOL";
569 case MEMCACHED_BEHAVIOR_SND_TIMEOUT
: return "MEMCACHED_BEHAVIOR_SND_TIMEOUT";
570 case MEMCACHED_BEHAVIOR_RCV_TIMEOUT
: return "MEMCACHED_BEHAVIOR_RCV_TIMEOUT";
571 case MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT
: return "MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT";
572 case MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK
: return "MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK";
573 case MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK
: return "MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK";
574 case MEMCACHED_BEHAVIOR_IO_KEY_PREFETCH
: return "MEMCACHED_BEHAVIOR_IO_KEY_PREFETCH";
575 case MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY
: return "MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY";
576 case MEMCACHED_BEHAVIOR_NOREPLY
: return "MEMCACHED_BEHAVIOR_NOREPLY";
577 case MEMCACHED_BEHAVIOR_USE_UDP
: return "MEMCACHED_BEHAVIOR_USE_UDP";
578 case MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS
: return "MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS";
579 case MEMCACHED_BEHAVIOR_REMOVE_FAILED_SERVERS
: return "MEMCACHED_BEHAVIOR_REMOVE_FAILED_SERVERS";
580 case MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS
: return "MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS";
581 case MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ
: return "MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ";
582 case MEMCACHED_BEHAVIOR_CORK
: return "MEMCACHED_BEHAVIOR_CORK";
583 case MEMCACHED_BEHAVIOR_TCP_KEEPALIVE
: return "MEMCACHED_BEHAVIOR_TCP_KEEPALIVE";
584 case MEMCACHED_BEHAVIOR_TCP_KEEPIDLE
: return "MEMCACHED_BEHAVIOR_TCP_KEEPIDLE";
585 case MEMCACHED_BEHAVIOR_LOAD_FROM_FILE
: return "MEMCACHED_BEHAVIOR_LOAD_FROM_FILE";
587 case MEMCACHED_BEHAVIOR_MAX
: return "INVALID memcached_behavior_t";
591 const char *libmemcached_string_distribution(const memcached_server_distribution_t flag
)
595 case MEMCACHED_DISTRIBUTION_MODULA
: return "MEMCACHED_DISTRIBUTION_MODULA";
596 case MEMCACHED_DISTRIBUTION_CONSISTENT
: return "MEMCACHED_DISTRIBUTION_CONSISTENT";
597 case MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
: return "MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA";
598 case MEMCACHED_DISTRIBUTION_RANDOM
: return "MEMCACHED_DISTRIBUTION_RANDOM";
599 case MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA_SPY
: return "MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA_SPY";
600 case MEMCACHED_DISTRIBUTION_CONSISTENT_WEIGHTED
: return "MEMCACHED_DISTRIBUTION_CONSISTENT_WEIGHTED";
601 case MEMCACHED_DISTRIBUTION_VIRTUAL_BUCKET
: return "MEMCACHED_DISTRIBUTION_VIRTUAL_BUCKET";
603 case MEMCACHED_DISTRIBUTION_CONSISTENT_MAX
: return "INVALID memcached_server_distribution_t";
607 memcached_return_t
memcached_bucket_set(memcached_st
*self
,
608 const uint32_t *host_map
,
609 const uint32_t *forward_map
,
610 const uint32_t buckets
,
611 const uint32_t replicas
)
613 memcached_return_t rc
;
617 return MEMCACHED_INVALID_ARGUMENTS
;
620 if (host_map
== NULL
)
622 return MEMCACHED_INVALID_ARGUMENTS
;
625 memcached_server_distribution_t old
= memcached_behavior_get_distribution(self
);
627 if (memcached_failed(rc
=memcached_behavior_set_distribution(self
, MEMCACHED_DISTRIBUTION_VIRTUAL_BUCKET
)))
632 if (memcached_failed(rc
= memcached_virtual_bucket_create(self
, host_map
, forward_map
, buckets
, replicas
)))
634 memcached_behavior_set_distribution(self
, old
);