X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=libmemcached%2Fmemcached_server.c;h=2cff36da2eedf007a0c3d163137a2cf169151b77;hb=521e830fe336a17bee6e7376e3bf01a3b35ddc37;hp=fd86e6d66233eee1a02c8360b5376cb8ceb9c907;hpb=26c1a71921b1468d56f6edaa7e6e3855ec1c879f;p=m6w6%2Flibmemcached diff --git a/libmemcached/memcached_server.c b/libmemcached/memcached_server.c index fd86e6d6..2cff36da 100644 --- a/libmemcached/memcached_server.c +++ b/libmemcached/memcached_server.c @@ -1,9 +1,117 @@ +/* LibMemcached + * Copyright (C) 2006-2009 Brian Aker + * All rights reserved. + * + * Use and distribution licensed under the BSD license. See + * the COPYING file in the parent directory for full text. + * + * Summary: String structure used for libmemcached. + * + */ + +/* + This is a partial implementation for fetching/creating memcached_server_st objects. +*/ #include "common.h" -memcached_return memcached_server_cursor(memcached_st *ptr, - memcached_server_function *callback, - void *context, - unsigned int number_of_callbacks) +memcached_server_st *memcached_server_create(memcached_st *memc, memcached_server_st *ptr) +{ + if (ptr == NULL) + { + ptr= (memcached_server_st *)calloc(1, sizeof(memcached_server_st)); + + if (!ptr) + return NULL; /* MEMCACHED_MEMORY_ALLOCATION_FAILURE */ + + ptr->options.is_allocated= true; + } + else + { + memset(ptr, 0, sizeof(memcached_server_st)); + } + + ptr->root= memc; + + return ptr; +} + +memcached_server_st *memcached_server_create_with(memcached_st *memc, memcached_server_st *host, + const char *hostname, in_port_t port, + uint32_t weight, memcached_connection_t type) +{ + host= memcached_server_create(memc, host); + + if (host == NULL) + return NULL; + + strncpy(host->hostname, hostname, MEMCACHED_MAX_HOST_LENGTH - 1); + host->root= memc ? memc : NULL; + host->port= port; + host->weight= weight; + host->fd= -1; + host->type= type; + host->read_ptr= host->read_buffer; + if (memc) + host->next_retry= memc->retry_timeout; + if (type == MEMCACHED_CONNECTION_UDP) + { + host->write_buffer_offset= UDP_DATAGRAM_HEADER_LENGTH; + memcached_io_init_udp_header(host, 0); + } + + return host; +} + +void memcached_server_free(memcached_server_st *ptr) +{ + memcached_quit_server(ptr, 0); + + if (ptr->cached_server_error) + free(ptr->cached_server_error); + + if (ptr->address_info) + freeaddrinfo(ptr->address_info); + + + if (memcached_is_allocated(ptr)) + { + ptr->root->call_free(ptr->root, ptr); + } + else + { + memset(ptr, 0, sizeof(memcached_server_st)); + } +} + +/* + If we do not have a valid object to clone from, we toss an error. +*/ +memcached_server_st *memcached_server_clone(memcached_server_st *clone, memcached_server_st *ptr) +{ + memcached_server_st *rv= NULL; + + /* We just do a normal create if ptr is missing */ + if (ptr == NULL) + return NULL; + + rv = memcached_server_create_with(ptr->root, clone, + ptr->hostname, ptr->port, ptr->weight, + ptr->type); + if (rv != NULL) + { + rv->cached_errno= ptr->cached_errno; + if (ptr->cached_server_error) + rv->cached_server_error= strdup(ptr->cached_server_error); + } + + return rv; + +} + +memcached_return_t memcached_server_cursor(memcached_st *ptr, + memcached_server_fn *callback, + void *context, + uint32_t number_of_callbacks) { unsigned int y; @@ -24,3 +132,48 @@ memcached_return memcached_server_cursor(memcached_st *ptr, return MEMCACHED_SUCCESS; } + +memcached_server_st *memcached_server_by_key(memcached_st *ptr, const char *key, size_t key_length, memcached_return_t *error) +{ + uint32_t server_key; + + *error= memcached_validate_key_length(key_length, + ptr->flags.binary_protocol); + unlikely (*error != MEMCACHED_SUCCESS) + return NULL; + + unlikely (ptr->number_of_hosts == 0) + { + *error= MEMCACHED_NO_SERVERS; + return NULL; + } + + if (ptr->flags.verify_key && (memcached_key_test((const char **)&key, &key_length, 1) == MEMCACHED_BAD_KEY_PROVIDED)) + { + *error= MEMCACHED_BAD_KEY_PROVIDED; + return NULL; + } + + server_key= memcached_generate_hash(ptr, key, key_length); + + return memcached_server_clone(NULL, &ptr->hosts[server_key]); + +} + +const char *memcached_server_error(memcached_server_st *ptr) +{ + if (ptr) + return ptr->cached_server_error; + else + return NULL; +} + +void memcached_server_error_reset(memcached_server_st *ptr) +{ + ptr->cached_server_error[0]= 0; +} + +memcached_server_st *memcached_server_get_last_disconnect(memcached_st *ptr) +{ + return ptr->last_disconnected_server; +}