X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=libmemcached%2Fcommon.h;h=97899ea95eb9e6b35d2b77eb7b7f877be419d92c;hb=c38f53f67c27b36858e456fcb86a725d5c27b977;hp=ab61a22c424a37db9263e08f11da6edbf8756ae9;hpb=5ef15e8c3826baead436f0d4fe6a4889956a3124;p=m6w6%2Flibmemcached diff --git a/libmemcached/common.h b/libmemcached/common.h index ab61a22c..97899ea9 100644 --- a/libmemcached/common.h +++ b/libmemcached/common.h @@ -1,9 +1,22 @@ +/* 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: + * + */ + /* Common include file for libmemached */ -#ifndef __COMMON_H__ -#define __COMMON_H__ +#ifndef LIBMEMCACHED_COMMON_H +#define LIBMEMCACHED_COMMON_H + +#include "config.h" #include #include @@ -21,7 +34,6 @@ #include #include #include - #ifdef TIME_WITH_SYS_TIME # include # include @@ -33,13 +45,29 @@ # endif #endif +/* Define this here, which will turn on the visibilty controls while we're + * building libmemcached. + */ +#define BUILDING_LIBMEMCACHED 1 + + +#include "libmemcached/memcached.h" +#include "libmemcached/watchpoint.h" +/* These are private not to be installed headers */ +#include "libmemcached/io.h" +#include "libmemcached/internal.h" +#include "libmemcached/libmemcached_probes.h" +#include "libmemcached/memcached/protocol_binary.h" +#include "libmemcached/byteorder.h" -#include -#include "memcached_io.h" +/* string value */ +struct memcached_continuum_item_st +{ + uint32_t index; + uint32_t value; +}; -#include "memcached/protocol_binary.h" -#include "libmemcached_config.h" #if !defined(__GNUC__) || (__GNUC__ == 2 && __GNUC_MINOR__ < 96) @@ -48,11 +76,10 @@ #else -#define likely(x) if(__builtin_expect(!!(x), 1)) -#define unlikely(x) if(__builtin_expect((x), 0)) +#define likely(x) if(__builtin_expect((x) != 0, 1)) +#define unlikely(x) if(__builtin_expect((x) != 0, 0)) #endif -#include "libmemcached_probes.h" #define MEMCACHED_BLOCK_SIZE 1024 #define MEMCACHED_DEFAULT_COMMAND_SIZE 350 @@ -75,49 +102,81 @@ typedef enum { /* 11 used for weighted ketama */ MEM_KETAMA_WEIGHTED= (1 << 11), MEM_BINARY_PROTOCOL= (1 << 12), - MEM_HASH_WITH_PREFIX_KEY= (1 << 13) + MEM_HASH_WITH_PREFIX_KEY= (1 << 13), + MEM_NOREPLY= (1 << 14), + MEM_USE_UDP= (1 << 15), + MEM_AUTO_EJECT_HOSTS= (1 << 16), + MEM_RANDOMIZE_REPLICA_READ= (1 << 17) } memcached_flags; /* Hashing algo */ + +LIBMEMCACHED_LOCAL void md5_signature(const unsigned char *key, unsigned int length, unsigned char *result); +LIBMEMCACHED_LOCAL uint32_t hash_crc32(const char *data, size_t data_len); +#ifdef HAVE_HSIEH_HASH +LIBMEMCACHED_LOCAL uint32_t hsieh_hash(const char *key, size_t key_length); +#endif +LIBMEMCACHED_LOCAL uint32_t murmur_hash(const char *key, size_t key_length); +LIBMEMCACHED_LOCAL uint32_t jenkins_hash(const void *key, size_t length, uint32_t initval); -memcached_return memcached_connect(memcached_server_st *ptr); -memcached_return memcached_response(memcached_server_st *ptr, - char *buffer, size_t buffer_length, - memcached_result_st *result); -uint32_t memcached_generate_hash(memcached_st *ptr, const char *key, size_t key_length); +LIBMEMCACHED_LOCAL +memcached_return_t memcached_connect(memcached_server_st *ptr); +LIBMEMCACHED_LOCAL +memcached_return_t memcached_response(memcached_server_st *ptr, + char *buffer, size_t buffer_length, + memcached_result_st *result); +LIBMEMCACHED_LOCAL void memcached_quit_server(memcached_server_st *ptr, uint8_t io_death); #define memcached_server_response_increment(A) (A)->cursor_active++ #define memcached_server_response_decrement(A) (A)->cursor_active-- #define memcached_server_response_reset(A) (A)->cursor_active=0 -memcached_return memcached_do(memcached_server_st *ptr, const void *commmand, - size_t command_length, uint8_t with_flush); -memcached_return memcached_version(memcached_st *ptr); -memcached_return value_fetch(memcached_server_st *ptr, - char *buffer, - memcached_result_st *result); +LIBMEMCACHED_LOCAL +memcached_return_t memcached_do(memcached_server_st *ptr, const void *commmand, + size_t command_length, uint8_t with_flush); +LIBMEMCACHED_LOCAL +memcached_return_t value_fetch(memcached_server_st *ptr, + char *buffer, + memcached_result_st *result); +LIBMEMCACHED_LOCAL void server_list_free(memcached_st *ptr, memcached_server_st *servers); -memcached_return memcachd_key_test(char **keys, size_t *key_length, - unsigned int number_of_keys); - -memcached_return run_distribution(memcached_st *ptr); +LIBMEMCACHED_LOCAL +memcached_return_t memcached_key_test(const char * const *keys, + const size_t *key_length, + size_t number_of_keys); -uint32_t generate_hash_value(const char *key, size_t key_length, memcached_hash hash_algorithm); +LIBMEMCACHED_LOCAL uint32_t generate_hash(memcached_st *ptr, const char *key, size_t key_length); -memcached_return memcached_server_remove(memcached_server_st *st_ptr); - -extern uint64_t ntohll(uint64_t); -extern uint64_t htonll(uint64_t); - -memcached_return memcached_purge(memcached_server_st *ptr); -#endif /* __COMMON_H__ */ +LIBMEMCACHED_LOCAL +memcached_return_t memcached_purge(memcached_server_st *ptr); + +static inline memcached_return_t memcached_validate_key_length(size_t key_length, bool binary) +{ + unlikely (key_length == 0) + return MEMCACHED_BAD_KEY_PROVIDED; + + if (binary) + { + unlikely (key_length > 0xffff) + return MEMCACHED_BAD_KEY_PROVIDED; + } + else + { + unlikely (key_length >= MEMCACHED_MAX_KEY) + return MEMCACHED_BAD_KEY_PROVIDED; + } + + return MEMCACHED_SUCCESS; +} + +#endif /* LIBMEMCACHED_COMMON_H */