+++ /dev/null
-/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
- *
- * Libmemcached library
- *
- * Copyright (C) 2011 Data Differential, http://datadifferential.com/
- * Copyright (C) 2006-2009 Brian Aker 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.
- *
- */
-
-#include <libmemcached/common.h>
-
-#include <libmemcached/options.hpp>
-#include <libmemcached/virtual_bucket.h>
-
-static inline bool _memcached_init(Memcached *self)
-{
- self->state.is_purging= false;
- self->state.is_processing_input= false;
- self->state.is_time_for_rebuild= false;
- self->state.is_parsing= false;
-
- self->flags.auto_eject_hosts= false;
- self->flags.binary_protocol= false;
- self->flags.buffer_requests= false;
- self->flags.hash_with_namespace= false;
- self->flags.no_block= false;
- self->flags.reply= true;
- self->flags.randomize_replica_read= false;
- self->flags.support_cas= false;
- self->flags.tcp_nodelay= false;
- self->flags.use_sort_hosts= false;
- self->flags.use_udp= false;
- self->flags.verify_key= false;
- self->flags.tcp_keepalive= false;
- self->flags.is_aes= false;
- self->flags.is_fetching_version= false;
-
- self->virtual_bucket= NULL;
-
- self->distribution= MEMCACHED_DISTRIBUTION_MODULA;
-
- if (hashkit_create(&self->hashkit) == NULL)
- {
- return false;
- }
-
- self->server_info.version= 0;
-
- self->ketama.continuum= NULL;
- self->ketama.continuum_count= 0;
- self->ketama.continuum_points_counter= 0;
- self->ketama.next_distribution_rebuild= 0;
- self->ketama.weighted_= false;
-
- self->number_of_hosts= 0;
- self->servers= NULL;
- self->last_disconnected_server= NULL;
-
- self->snd_timeout= 0;
- self->rcv_timeout= 0;
- self->server_failure_limit= MEMCACHED_SERVER_FAILURE_LIMIT;
- self->server_timeout_limit= MEMCACHED_SERVER_TIMEOUT_LIMIT;
- self->query_id= 1; // 0 is considered invalid
-
- /* TODO, Document why we picked these defaults */
- self->io_msg_watermark= 500;
- self->io_bytes_watermark= 65 * 1024;
-
- self->tcp_keepidle= 0;
-
- self->io_key_prefetch= 0;
- self->poll_timeout= MEMCACHED_DEFAULT_TIMEOUT;
- self->connect_timeout= MEMCACHED_DEFAULT_CONNECT_TIMEOUT;
- self->retry_timeout= MEMCACHED_SERVER_FAILURE_RETRY_TIMEOUT;
- self->dead_timeout= MEMCACHED_SERVER_FAILURE_DEAD_TIMEOUT;
-
- self->send_size= -1;
- self->recv_size= -1;
-
- self->user_data= NULL;
- self->number_of_replicas= 0;
-
- self->allocators= memcached_allocators_return_default();
-
- self->on_clone= NULL;
- self->on_cleanup= NULL;
- self->get_key_failure= NULL;
- self->delete_trigger= NULL;
- self->callbacks= NULL;
- self->sasl.callbacks= NULL;
- self->sasl.is_allocated= false;
-
- self->error_messages= NULL;
- self->_namespace= NULL;
- self->configure.initial_pool_size= 1;
- self->configure.max_pool_size= 1;
- self->configure.version= -1;
- self->configure.filename= NULL;
-
- return true;
-}
-
-static void __memcached_free(Memcached *ptr, bool release_st)
-{
- /* If we have anything open, lets close it now */
- send_quit(ptr);
- memcached_instance_list_free(memcached_instance_list(ptr), memcached_instance_list_count(ptr));
- memcached_result_free(&ptr->result);
-
- memcached_virtual_bucket_free(ptr);
-
- memcached_instance_free((memcached_instance_st*)ptr->last_disconnected_server);
-
- if (ptr->on_cleanup)
- {
- ptr->on_cleanup(ptr);
- }
-
- libmemcached_free(ptr, ptr->ketama.continuum);
- ptr->ketama.continuum= NULL;
-
- memcached_array_free(ptr->_namespace);
- ptr->_namespace= NULL;
-
- memcached_error_free(*ptr);
-
- if (LIBMEMCACHED_WITH_SASL_SUPPORT and ptr->sasl.callbacks)
- {
- memcached_destroy_sasl_auth_data(ptr);
- }
-
- if (release_st)
- {
- memcached_array_free(ptr->configure.filename);
- ptr->configure.filename= NULL;
- }
-
- hashkit_free(&ptr->hashkit);
-
- if (memcached_is_allocated(ptr) and release_st)
- {
- libmemcached_free(ptr, ptr);
- }
-}
-
-memcached_st *memcached_create(memcached_st *shell)
-{
- if (shell)
- {
- shell->options.is_allocated= false;
- }
- else
- {
- shell= (memcached_st *)libmemcached_xmalloc(NULL, memcached_st);
-
- if (shell == NULL)
- {
- return NULL; /* MEMCACHED_MEMORY_ALLOCATION_FAILURE */
- }
-
- shell->options.is_allocated= true;
- }
-
- if (_memcached_init(shell) == false)
- {
- memcached_free(shell);
- return NULL;
- }
-
- Memcached* memc= memcached2Memcached(shell);
- if (memcached_result_create(shell, &memc->result) == NULL)
- {
- memcached_free(shell);
- return NULL;
- }
-
- WATCHPOINT_ASSERT_INITIALIZED(&memc->result);
-
- return shell;
-}
-
-memcached_st *memcached(const char *string, size_t length)
-{
- if (length == 0 and string)
- {
- return NULL;
- }
-
- if (length and string == NULL)
- {
- return NULL;
- }
-
- if (length == 0)
- {
- if (bool(getenv("LIBMEMCACHED")))
- {
- string= getenv("LIBMEMCACHED");
- length= string ? strlen(string) : 0;
- }
- }
-
- memcached_st *memc= memcached_create(NULL);
- if (memc == NULL)
- {
- return NULL;
- }
-
- if (length == 0 or string == NULL)
- {
- return memc;
- }
-
- memcached_return_t rc= memcached_parse_configuration(memc, string, length);
- if (memcached_success(rc) and memcached_parse_filename(memc))
- {
- rc= memcached_parse_configure_file(*memc, memcached_parse_filename(memc), memcached_parse_filename_length(memc));
- }
-
- if (memcached_failed(rc))
- {
- memcached_free(memc);
- return NULL;
- }
-
- return memc;
-}
-
-memcached_return_t memcached_reset(memcached_st *shell)
-{
- Memcached* ptr= memcached2Memcached(shell);
- WATCHPOINT_ASSERT(ptr);
- if (ptr == NULL)
- {
- return MEMCACHED_INVALID_ARGUMENTS;
- }
-
- bool stored_is_allocated= memcached_is_allocated(ptr);
- uint64_t query_id= ptr->query_id;
- __memcached_free(ptr, false);
- memcached_create(ptr);
- memcached_set_allocated(ptr, stored_is_allocated);
- ptr->query_id= query_id;
-
- if (ptr->configure.filename)
- {
- return memcached_parse_configure_file(*ptr, memcached_param_array(ptr->configure.filename));
- }
-
- return MEMCACHED_SUCCESS;
-}
-
-void memcached_servers_reset(memcached_st *shell)
-{
- Memcached* self= memcached2Memcached(shell);
- if (self)
- {
- libmemcached_free(self, self->ketama.continuum);
- self->ketama.continuum= NULL;
- self->ketama.continuum_count= 0;
- self->ketama.continuum_points_counter= 0;
-
- memcached_instance_list_free(memcached_instance_list(self), self->number_of_hosts);
- memcached_instance_set(self, NULL, 0);
-
- memcached_reset_last_disconnected_server(self);
- }
-}
-
-void memcached_reset_last_disconnected_server(memcached_st *shell)
-{
- Memcached* self= memcached2Memcached(shell);
- if (self)
- {
- memcached_instance_free((memcached_instance_st*)self->last_disconnected_server);
- self->last_disconnected_server= NULL;
- }
-}
-
-void memcached_free(memcached_st *ptr)
-{
- if (ptr)
- {
- __memcached_free(ptr, true);
- }
-}
-
-/*
- clone is the destination, while source is the structure to clone.
- If source is NULL the call is the same as if a memcached_create() was
- called.
-*/
-memcached_st *memcached_clone(memcached_st *clone, const memcached_st *source)
-{
- if (source == NULL)
- {
- return memcached_create(clone);
- }
-
- if (clone and memcached_is_allocated(clone))
- {
- return NULL;
- }
-
- memcached_st *new_clone= memcached_create(clone);
-
- if (new_clone == NULL)
- {
- return NULL;
- }
-
- new_clone->flags= source->flags;
- new_clone->send_size= source->send_size;
- new_clone->recv_size= source->recv_size;
- new_clone->poll_timeout= source->poll_timeout;
- new_clone->connect_timeout= source->connect_timeout;
- new_clone->retry_timeout= source->retry_timeout;
- new_clone->dead_timeout= source->dead_timeout;
- new_clone->distribution= source->distribution;
-
- if (hashkit_clone(&new_clone->hashkit, &source->hashkit) == NULL)
- {
- memcached_free(new_clone);
- return NULL;
- }
-
- new_clone->user_data= source->user_data;
-
- new_clone->snd_timeout= source->snd_timeout;
- new_clone->rcv_timeout= source->rcv_timeout;
-
- new_clone->on_clone= source->on_clone;
- new_clone->on_cleanup= source->on_cleanup;
-
- new_clone->allocators= source->allocators;
-
- new_clone->get_key_failure= source->get_key_failure;
- new_clone->delete_trigger= source->delete_trigger;
- new_clone->server_failure_limit= source->server_failure_limit;
- new_clone->server_timeout_limit= source->server_timeout_limit;
- new_clone->io_msg_watermark= source->io_msg_watermark;
- new_clone->io_bytes_watermark= source->io_bytes_watermark;
- new_clone->io_key_prefetch= source->io_key_prefetch;
- new_clone->number_of_replicas= source->number_of_replicas;
- new_clone->tcp_keepidle= source->tcp_keepidle;
-
- if (memcached_server_count(source))
- {
- if (memcached_failed(memcached_push(new_clone, source)))
- {
- return NULL;
- }
- }
-
-
- new_clone->_namespace= memcached_array_clone(new_clone, source->_namespace);
- new_clone->configure.filename= memcached_array_clone(new_clone, source->_namespace);
- new_clone->configure.version= source->configure.version;
-
- if (LIBMEMCACHED_WITH_SASL_SUPPORT and source->sasl.callbacks)
- {
- if (memcached_failed(memcached_clone_sasl(new_clone, source)))
- {
- memcached_free(new_clone);
- return NULL;
- }
- }
-
- if (memcached_failed(run_distribution(new_clone)))
- {
- memcached_free(new_clone);
-
- return NULL;
- }
-
- if (source->on_clone)
- {
- source->on_clone(new_clone, source);
- }
-
- return new_clone;
-}
-
-void *memcached_get_user_data(const memcached_st *shell)
-{
- const Memcached* memc= memcached2Memcached(shell);
- if (memc)
- {
- return memc->user_data;
- }
-
- return NULL;
-}
-
-void *memcached_set_user_data(memcached_st *shell, void *data)
-{
- Memcached* memc= memcached2Memcached(shell);
- if (memc)
- {
- void *ret= memc->user_data;
- memc->user_data= data;
-
- return ret;
- }
-
- return NULL;
-}
-
-memcached_return_t memcached_push(memcached_st *destination, const memcached_st *source)
-{
- return memcached_instance_push(destination, (memcached_instance_st*)source->servers, source->number_of_hosts);
-}
-
-memcached_instance_st* memcached_instance_fetch(Memcached *ptr, uint32_t server_key)
-{
- if (ptr == NULL)
- {
- return NULL;
- }
-
- return &ptr->servers[server_key];
-}
-
-const memcached_instance_st * memcached_server_instance_by_position(const memcached_st *shell, uint32_t server_key)
-{
- const Memcached* memc= memcached2Memcached(shell);
- if (memc)
- {
- return &memc->servers[server_key];
- }
-
- return NULL;
-}
-
-memcached_instance_st* memcached_instance_by_position(const memcached_st *shell, uint32_t server_key)
-{
- const Memcached* memc= memcached2Memcached(shell);
- if (memc)
- {
- return &memc->servers[server_key];
- }
-
- return NULL;
-}
-
-uint64_t memcached_query_id(const memcached_st *shell)
-{
- const Memcached* memc= memcached2Memcached(shell);
- if (memc)
- {
- return memc->query_id;
- }
-
- return 0;
-}
-
-memcached_instance_st* memcached_instance_list(const memcached_st *shell)
-{
- const Memcached* memc= memcached2Memcached(shell);
- if (memc)
- {
- return (memcached_instance_st*)memc->servers;
- }
-
- return NULL;
-}
-
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