-/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
- *
- * Libmemcached library
- *
- * Copyright (C) 2011 Data Differential, http://datadifferential.com/
- * All rights reserved.
- *
- * 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.
- *
- */
+/*
+ +--------------------------------------------------------------------+
+ | libmemcached - C/C++ Client Library for memcached |
+ +--------------------------------------------------------------------+
+ | Redistribution and use in source and binary forms, with or without |
+ | modification, are permitted under the terms of the BSD license. |
+ | You should have received a copy of the license in a bundled file |
+ | named LICENSE; in case you did not receive a copy you can review |
+ | the terms online at: https://opensource.org/licenses/BSD-3-Clause |
+ +--------------------------------------------------------------------+
+ | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ |
+ | Copyright (c) 2020 Michael Wallner <mike@php.net> |
+ +--------------------------------------------------------------------+
+*/
-#include <libmemcached/common.h>
+#include "libmemcached/common.h"
struct bucket_t {
uint32_t master;
struct bucket_t buckets[];
};
-memcached_return_t memcached_virtual_bucket_create(memcached_st *self,
- const uint32_t *host_map,
+memcached_return_t memcached_virtual_bucket_create(memcached_st *self, const uint32_t *host_map,
const uint32_t *forward_map,
const uint32_t buckets,
- const uint32_t replicas)
-{
- if (self == NULL || host_map == NULL || buckets == 0U)
- {
+ const uint32_t replicas) {
+ if (self == NULL || host_map == NULL || buckets == 0U) {
return MEMCACHED_INVALID_ARGUMENTS;
}
memcached_virtual_bucket_free(self);
- struct memcached_virtual_bucket_t *virtual_bucket= (struct memcached_virtual_bucket_t *)malloc(sizeof(struct memcached_virtual_bucket_t) + sizeof(struct bucket_t) *buckets);
-
- if (virtual_bucket == NULL)
- {
+ struct memcached_virtual_bucket_t *virtual_bucket = (struct memcached_virtual_bucket_t *) malloc(
+ sizeof(struct memcached_virtual_bucket_t) + sizeof(struct bucket_t) * buckets);
+
+ if (virtual_bucket == NULL) {
return MEMCACHED_MEMORY_ALLOCATION_FAILURE;
}
+ virtual_bucket->size = buckets;
+ virtual_bucket->replicas = replicas;
+ self->virtual_bucket = virtual_bucket;
- virtual_bucket->size= buckets;
- virtual_bucket->replicas= replicas;
- self->virtual_bucket= virtual_bucket;
-
- uint32_t x= 0;
- for (; x < buckets; x++)
- {
- virtual_bucket->buckets[x].master= host_map[x];
- if (forward_map)
- {
- virtual_bucket->buckets[x].forward= forward_map[x];
- }
- else
- {
- virtual_bucket->buckets[x].forward= 0;
+ uint32_t x = 0;
+ for (; x < buckets; x++) {
+ virtual_bucket->buckets[x].master = host_map[x];
+ if (forward_map) {
+ virtual_bucket->buckets[x].forward = forward_map[x];
+ } else {
+ virtual_bucket->buckets[x].forward = 0;
}
}
return MEMCACHED_SUCCESS;
}
-void memcached_virtual_bucket_free(memcached_st *self)
-{
- if (self)
- {
- if (self->virtual_bucket)
- {
+void memcached_virtual_bucket_free(memcached_st *self) {
+ if (self) {
+ if (self->virtual_bucket) {
free(self->virtual_bucket);
- self->virtual_bucket= NULL;
+ self->virtual_bucket = NULL;
}
}
}
-uint32_t memcached_virtual_bucket_get(const memcached_st *self, uint32_t digest)
-{
- if (self)
- {
- if (self->virtual_bucket)
- {
- uint32_t result= (uint32_t) (digest & (self->virtual_bucket->size -1));
+uint32_t memcached_virtual_bucket_get(const memcached_st *self, uint32_t digest) {
+ if (self) {
+ if (self->virtual_bucket) {
+ uint32_t result = (uint32_t)(digest & (self->virtual_bucket->size - 1));
return self->virtual_bucket->buckets[result].master;
}
- return (uint32_t) (digest & (self->number_of_hosts -1));
+ return (uint32_t)(digest & (self->number_of_hosts - 1));
}
return 0;