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 if (bool(data
) == false)
167 return memcached_behavior_set(ptr
, MEMCACHED_BEHAVIOR_KETAMA
, true);
170 (void)memcached_behavior_set_key_hash(ptr
, MEMCACHED_HASH_MD5
);
171 (void)memcached_behavior_set_distribution_hash(ptr
, MEMCACHED_HASH_MD5
);
173 @note We try to keep the same distribution going. This should be deprecated and rewritten.
175 return memcached_behavior_set_distribution(ptr
, MEMCACHED_DISTRIBUTION_CONSISTENT_WEIGHTED
);
178 case MEMCACHED_BEHAVIOR_HASH
:
179 return memcached_behavior_set_key_hash(ptr
, (memcached_hash_t
)(data
));
181 case MEMCACHED_BEHAVIOR_KETAMA_HASH
:
182 return memcached_behavior_set_distribution_hash(ptr
, (memcached_hash_t
)(data
));
184 case MEMCACHED_BEHAVIOR_CACHE_LOOKUPS
:
185 return memcached_set_error(*ptr
, MEMCACHED_DEPRECATED
, MEMCACHED_AT
,
186 memcached_literal_param("MEMCACHED_BEHAVIOR_CACHE_LOOKUPS has been deprecated."));
188 case MEMCACHED_BEHAVIOR_VERIFY_KEY
:
189 if (ptr
->flags
.binary_protocol
)
191 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
192 memcached_literal_param("MEMCACHED_BEHAVIOR_VERIFY_KEY if the binary protocol has been enabled."));
194 ptr
->flags
.verify_key
= bool(data
);
197 case MEMCACHED_BEHAVIOR_SORT_HOSTS
:
199 ptr
->flags
.use_sort_hosts
= bool(data
);
200 return run_distribution(ptr
);
203 case MEMCACHED_BEHAVIOR_POLL_TIMEOUT
:
204 ptr
->poll_timeout
= (int32_t)data
;
207 case MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT
:
208 ptr
->connect_timeout
= (int32_t)data
;
211 case MEMCACHED_BEHAVIOR_RETRY_TIMEOUT
:
214 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
215 memcached_literal_param("MEMCACHED_BEHAVIOR_RETRY_TIMEOUT requires a value greater then zero."));
217 ptr
->retry_timeout
= int32_t(data
);
220 case MEMCACHED_BEHAVIOR_DEAD_TIMEOUT
:
221 ptr
->dead_timeout
= int32_t(data
);
224 case MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE
:
225 ptr
->send_size
= (int32_t)data
;
229 case MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE
:
230 ptr
->recv_size
= (int32_t)data
;
234 case MEMCACHED_BEHAVIOR_TCP_KEEPIDLE
:
235 ptr
->tcp_keepidle
= (uint32_t)data
;
239 case MEMCACHED_BEHAVIOR_USER_DATA
:
240 return memcached_set_error(*ptr
, MEMCACHED_DEPRECATED
, MEMCACHED_AT
,
241 memcached_literal_param("MEMCACHED_BEHAVIOR_USER_DATA deprecated."));
243 case MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY
:
244 ptr
->flags
.hash_with_namespace
= bool(data
);
247 case MEMCACHED_BEHAVIOR_NOREPLY
:
248 if (memcached_is_udp(ptr
) and bool(data
) == false)
250 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
251 memcached_literal_param("MEMCACHED_BEHAVIOR_NOREPLY cannot be disabled while MEMCACHED_BEHAVIOR_USE_UDP is enabled."));
253 // We reverse the logic here to make it easier to understand throughout the
255 ptr
->flags
.reply
= bool(data
) ? false : true;
258 case MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS
:
259 ptr
->flags
.auto_eject_hosts
= bool(data
);
262 case MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ
:
263 srandom((uint32_t) time(NULL
));
264 ptr
->flags
.randomize_replica_read
= bool(data
);
267 case MEMCACHED_BEHAVIOR_CORK
:
268 return memcached_set_error(*ptr
, MEMCACHED_DEPRECATED
, MEMCACHED_AT
,
269 memcached_literal_param("MEMCACHED_BEHAVIOR_CORK is now incorporated into the driver by default."));
271 case MEMCACHED_BEHAVIOR_LOAD_FROM_FILE
:
272 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
273 memcached_literal_param("MEMCACHED_BEHAVIOR_LOAD_FROM_FILE can not be set with memcached_behavior_set()"));
275 case MEMCACHED_BEHAVIOR_MAX
:
277 /* Shouldn't get here */
278 assert_msg(0, "Invalid behavior passed to memcached_behavior_set()");
279 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
280 memcached_literal_param("Invalid behavior passed to memcached_behavior_set()"));
283 return MEMCACHED_SUCCESS
;
286 bool _is_auto_eject_host(const memcached_st
*ptr
)
288 return ptr
->flags
.auto_eject_hosts
;
291 uint64_t memcached_behavior_get(memcached_st
*ptr
,
292 const memcached_behavior_t flag
)
296 return MEMCACHED_INVALID_ARGUMENTS
;
301 case MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS
:
302 return ptr
->number_of_replicas
;
304 case MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK
:
305 return ptr
->io_msg_watermark
;
307 case MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK
:
308 return ptr
->io_bytes_watermark
;
310 case MEMCACHED_BEHAVIOR_IO_KEY_PREFETCH
:
311 return ptr
->io_key_prefetch
;
313 case MEMCACHED_BEHAVIOR_BINARY_PROTOCOL
:
314 return ptr
->flags
.binary_protocol
;
316 case MEMCACHED_BEHAVIOR_SUPPORT_CAS
:
317 return ptr
->flags
.support_cas
;
319 case MEMCACHED_BEHAVIOR_CACHE_LOOKUPS
:
322 case MEMCACHED_BEHAVIOR_NO_BLOCK
:
323 return ptr
->flags
.no_block
;
325 case MEMCACHED_BEHAVIOR_BUFFER_REQUESTS
:
326 return ptr
->flags
.buffer_requests
;
328 case MEMCACHED_BEHAVIOR_USE_UDP
:
329 return memcached_is_udp(ptr
);
331 case MEMCACHED_BEHAVIOR_TCP_NODELAY
:
332 return ptr
->flags
.tcp_nodelay
;
334 case MEMCACHED_BEHAVIOR_VERIFY_KEY
:
335 return ptr
->flags
.verify_key
;
337 case MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED
:
338 return ptr
->ketama
.weighted
;
340 case MEMCACHED_BEHAVIOR_DISTRIBUTION
:
341 return ptr
->distribution
;
343 case MEMCACHED_BEHAVIOR_KETAMA
:
344 return (ptr
->distribution
== MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
) ? (uint64_t) 1 : 0;
346 case MEMCACHED_BEHAVIOR_HASH
:
347 return hashkit_get_function(&ptr
->hashkit
);
349 case MEMCACHED_BEHAVIOR_KETAMA_HASH
:
350 return hashkit_get_function(&ptr
->hashkit
);
352 case MEMCACHED_BEHAVIOR_REMOVE_FAILED_SERVERS
:
353 case MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT
:
354 return ptr
->server_failure_limit
;
356 case MEMCACHED_BEHAVIOR_SORT_HOSTS
:
357 return ptr
->flags
.use_sort_hosts
;
359 case MEMCACHED_BEHAVIOR_POLL_TIMEOUT
:
360 return (uint64_t)ptr
->poll_timeout
;
362 case MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT
:
363 return (uint64_t)ptr
->connect_timeout
;
365 case MEMCACHED_BEHAVIOR_RETRY_TIMEOUT
:
366 return (uint64_t)ptr
->retry_timeout
;
368 case MEMCACHED_BEHAVIOR_DEAD_TIMEOUT
:
369 return uint64_t(ptr
->dead_timeout
);
371 case MEMCACHED_BEHAVIOR_SND_TIMEOUT
:
372 return (uint64_t)ptr
->snd_timeout
;
374 case MEMCACHED_BEHAVIOR_RCV_TIMEOUT
:
375 return (uint64_t)ptr
->rcv_timeout
;
377 case MEMCACHED_BEHAVIOR_TCP_KEEPIDLE
:
378 return (uint64_t)ptr
->tcp_keepidle
;
380 case MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE
:
383 socklen_t sock_length
= sizeof(int);
385 if (ptr
->send_size
!= -1) // If value is -1 then we are using the default
387 return (uint64_t) ptr
->send_size
;
390 memcached_server_write_instance_st instance
= memcached_server_instance_fetch(ptr
, 0);
392 if (instance
) // If we have an instance we test, otherwise we just set and pray
395 /* We just try the first host, and if it is down we return zero */
396 if (memcached_failed(memcached_connect(instance
)))
401 if (memcached_failed(memcached_io_wait_for_write(instance
)))
406 if (getsockopt(instance
->fd
, SOL_SOCKET
, SO_SNDBUF
, &sock_size
, &sock_length
) < 0)
408 memcached_set_errno(*ptr
, get_socket_errno(), MEMCACHED_AT
);
409 return 0; /* Zero means error */
413 return (uint64_t) sock_size
;
416 case MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE
:
419 socklen_t sock_length
= sizeof(int);
421 if (ptr
->recv_size
!= -1) // If value is -1 then we are using the default
422 return (uint64_t) ptr
->recv_size
;
424 memcached_server_write_instance_st instance
= memcached_server_instance_fetch(ptr
, 0);
431 /* We just try the first host, and if it is down we return zero */
432 if (memcached_failed(memcached_connect(instance
)))
437 if (memcached_failed(memcached_io_wait_for_write(instance
)))
442 if (getsockopt(instance
->fd
, SOL_SOCKET
, SO_RCVBUF
, &sock_size
, &sock_length
) < 0)
444 memcached_set_errno(*ptr
, get_socket_errno(), MEMCACHED_AT
);
445 return 0; /* Zero means error */
449 return (uint64_t) sock_size
;
452 case MEMCACHED_BEHAVIOR_USER_DATA
:
453 memcached_set_error(*ptr
, MEMCACHED_DEPRECATED
, MEMCACHED_AT
,
454 memcached_literal_param("MEMCACHED_BEHAVIOR_USER_DATA deprecated."));
457 case MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY
:
458 return ptr
->flags
.hash_with_namespace
;
460 case MEMCACHED_BEHAVIOR_NOREPLY
:
461 return ptr
->flags
.reply
? false : true;
463 case MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS
:
464 return ptr
->flags
.auto_eject_hosts
;
466 case MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ
:
467 return ptr
->flags
.randomize_replica_read
;
469 case MEMCACHED_BEHAVIOR_CORK
:
476 case MEMCACHED_BEHAVIOR_TCP_KEEPALIVE
:
477 return ptr
->flags
.tcp_keepalive
;
479 case MEMCACHED_BEHAVIOR_LOAD_FROM_FILE
:
480 return bool(memcached_parse_filename(ptr
));
482 case MEMCACHED_BEHAVIOR_MAX
:
484 assert_msg(0, "Invalid behavior passed to memcached_behavior_set()");
492 memcached_return_t
memcached_behavior_set_distribution(memcached_st
*ptr
, memcached_server_distribution_t type
)
496 case MEMCACHED_DISTRIBUTION_MODULA
:
499 case MEMCACHED_DISTRIBUTION_CONSISTENT
:
500 case MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
:
501 ptr
->ketama
.weighted
= false;
504 case MEMCACHED_DISTRIBUTION_RANDOM
:
507 case MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA_SPY
:
510 case MEMCACHED_DISTRIBUTION_CONSISTENT_WEIGHTED
:
511 ptr
->ketama
.weighted
= true;
514 case MEMCACHED_DISTRIBUTION_VIRTUAL_BUCKET
:
518 case MEMCACHED_DISTRIBUTION_CONSISTENT_MAX
:
519 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
520 memcached_literal_param("Invalid memcached_server_distribution_t"));
523 return run_distribution(ptr
);
527 memcached_server_distribution_t
memcached_behavior_get_distribution(memcached_st
*ptr
)
529 return ptr
->distribution
;
532 memcached_return_t
memcached_behavior_set_key_hash(memcached_st
*ptr
, memcached_hash_t type
)
534 if (hashkit_success(hashkit_set_function(&ptr
->hashkit
, (hashkit_hash_algorithm_t
)type
)))
536 return MEMCACHED_SUCCESS
;
539 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
540 memcached_literal_param("Invalid memcached_hash_t()"));
543 memcached_hash_t
memcached_behavior_get_key_hash(memcached_st
*ptr
)
545 return (memcached_hash_t
)hashkit_get_function(&ptr
->hashkit
);
548 memcached_return_t
memcached_behavior_set_distribution_hash(memcached_st
*ptr
, memcached_hash_t type
)
550 if (hashkit_success(hashkit_set_distribution_function(&ptr
->hashkit
, (hashkit_hash_algorithm_t
)type
)))
552 return MEMCACHED_SUCCESS
;
555 return memcached_set_error(*ptr
, MEMCACHED_INVALID_ARGUMENTS
, MEMCACHED_AT
,
556 memcached_literal_param("Invalid memcached_hash_t()"));
559 memcached_hash_t
memcached_behavior_get_distribution_hash(memcached_st
*ptr
)
561 return (memcached_hash_t
)hashkit_get_function(&ptr
->hashkit
);
564 const char *libmemcached_string_behavior(const memcached_behavior_t flag
)
568 case MEMCACHED_BEHAVIOR_NO_BLOCK
: return "MEMCACHED_BEHAVIOR_NO_BLOCK";
569 case MEMCACHED_BEHAVIOR_TCP_NODELAY
: return "MEMCACHED_BEHAVIOR_TCP_NODELAY";
570 case MEMCACHED_BEHAVIOR_HASH
: return "MEMCACHED_BEHAVIOR_HASH";
571 case MEMCACHED_BEHAVIOR_KETAMA
: return "MEMCACHED_BEHAVIOR_KETAMA";
572 case MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE
: return "MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE";
573 case MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE
: return "MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE";
574 case MEMCACHED_BEHAVIOR_CACHE_LOOKUPS
: return "MEMCACHED_BEHAVIOR_CACHE_LOOKUPS";
575 case MEMCACHED_BEHAVIOR_SUPPORT_CAS
: return "MEMCACHED_BEHAVIOR_SUPPORT_CAS";
576 case MEMCACHED_BEHAVIOR_POLL_TIMEOUT
: return "MEMCACHED_BEHAVIOR_POLL_TIMEOUT";
577 case MEMCACHED_BEHAVIOR_DISTRIBUTION
: return "MEMCACHED_BEHAVIOR_DISTRIBUTION";
578 case MEMCACHED_BEHAVIOR_BUFFER_REQUESTS
: return "MEMCACHED_BEHAVIOR_BUFFER_REQUESTS";
579 case MEMCACHED_BEHAVIOR_USER_DATA
: return "MEMCACHED_BEHAVIOR_USER_DATA";
580 case MEMCACHED_BEHAVIOR_SORT_HOSTS
: return "MEMCACHED_BEHAVIOR_SORT_HOSTS";
581 case MEMCACHED_BEHAVIOR_VERIFY_KEY
: return "MEMCACHED_BEHAVIOR_VERIFY_KEY";
582 case MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT
: return "MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT";
583 case MEMCACHED_BEHAVIOR_RETRY_TIMEOUT
: return "MEMCACHED_BEHAVIOR_RETRY_TIMEOUT";
584 case MEMCACHED_BEHAVIOR_DEAD_TIMEOUT
: return "MEMCACHED_BEHAVIOR_DEAD_TIMEOUT";
585 case MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED
: return "MEMCACHED_BEHAVIOR_KETAMA_WEIGHTED";
586 case MEMCACHED_BEHAVIOR_KETAMA_HASH
: return "MEMCACHED_BEHAVIOR_KETAMA_HASH";
587 case MEMCACHED_BEHAVIOR_BINARY_PROTOCOL
: return "MEMCACHED_BEHAVIOR_BINARY_PROTOCOL";
588 case MEMCACHED_BEHAVIOR_SND_TIMEOUT
: return "MEMCACHED_BEHAVIOR_SND_TIMEOUT";
589 case MEMCACHED_BEHAVIOR_RCV_TIMEOUT
: return "MEMCACHED_BEHAVIOR_RCV_TIMEOUT";
590 case MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT
: return "MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT";
591 case MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK
: return "MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK";
592 case MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK
: return "MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK";
593 case MEMCACHED_BEHAVIOR_IO_KEY_PREFETCH
: return "MEMCACHED_BEHAVIOR_IO_KEY_PREFETCH";
594 case MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY
: return "MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY";
595 case MEMCACHED_BEHAVIOR_NOREPLY
: return "MEMCACHED_BEHAVIOR_NOREPLY";
596 case MEMCACHED_BEHAVIOR_USE_UDP
: return "MEMCACHED_BEHAVIOR_USE_UDP";
597 case MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS
: return "MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS";
598 case MEMCACHED_BEHAVIOR_REMOVE_FAILED_SERVERS
: return "MEMCACHED_BEHAVIOR_REMOVE_FAILED_SERVERS";
599 case MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS
: return "MEMCACHED_BEHAVIOR_NUMBER_OF_REPLICAS";
600 case MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ
: return "MEMCACHED_BEHAVIOR_RANDOMIZE_REPLICA_READ";
601 case MEMCACHED_BEHAVIOR_CORK
: return "MEMCACHED_BEHAVIOR_CORK";
602 case MEMCACHED_BEHAVIOR_TCP_KEEPALIVE
: return "MEMCACHED_BEHAVIOR_TCP_KEEPALIVE";
603 case MEMCACHED_BEHAVIOR_TCP_KEEPIDLE
: return "MEMCACHED_BEHAVIOR_TCP_KEEPIDLE";
604 case MEMCACHED_BEHAVIOR_LOAD_FROM_FILE
: return "MEMCACHED_BEHAVIOR_LOAD_FROM_FILE";
606 case MEMCACHED_BEHAVIOR_MAX
: return "INVALID memcached_behavior_t";
610 const char *libmemcached_string_distribution(const memcached_server_distribution_t flag
)
614 case MEMCACHED_DISTRIBUTION_MODULA
: return "MEMCACHED_DISTRIBUTION_MODULA";
615 case MEMCACHED_DISTRIBUTION_CONSISTENT
: return "MEMCACHED_DISTRIBUTION_CONSISTENT";
616 case MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA
: return "MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA";
617 case MEMCACHED_DISTRIBUTION_RANDOM
: return "MEMCACHED_DISTRIBUTION_RANDOM";
618 case MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA_SPY
: return "MEMCACHED_DISTRIBUTION_CONSISTENT_KETAMA_SPY";
619 case MEMCACHED_DISTRIBUTION_CONSISTENT_WEIGHTED
: return "MEMCACHED_DISTRIBUTION_CONSISTENT_WEIGHTED";
620 case MEMCACHED_DISTRIBUTION_VIRTUAL_BUCKET
: return "MEMCACHED_DISTRIBUTION_VIRTUAL_BUCKET";
622 case MEMCACHED_DISTRIBUTION_CONSISTENT_MAX
: return "INVALID memcached_server_distribution_t";
626 memcached_return_t
memcached_bucket_set(memcached_st
*self
,
627 const uint32_t *host_map
,
628 const uint32_t *forward_map
,
629 const uint32_t buckets
,
630 const uint32_t replicas
)
632 memcached_return_t rc
;
636 return MEMCACHED_INVALID_ARGUMENTS
;
639 if (host_map
== NULL
)
641 return MEMCACHED_INVALID_ARGUMENTS
;
644 memcached_server_distribution_t old
= memcached_behavior_get_distribution(self
);
646 if (memcached_failed(rc
=memcached_behavior_set_distribution(self
, MEMCACHED_DISTRIBUTION_VIRTUAL_BUCKET
)))
651 if (memcached_failed(rc
= memcached_virtual_bucket_create(self
, host_map
, forward_map
, buckets
, replicas
)))
653 memcached_behavior_set_distribution(self
, old
);