X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=libmemcached%2Fcommon.h;h=a03cabbf7655b014055fafd71f6cf718471d46c2;hb=d70dd7ca2db0a4f7d7c63367466567cc1efe9f68;hp=7942b27a34011bf96d18887779754a6f78c47866;hpb=c3dd2b1a405b440095f45b6f5ad8b4d4fd0d83a2;p=m6w6%2Flibmemcached diff --git a/libmemcached/common.h b/libmemcached/common.h index 7942b27a..a03cabbf 100644 --- a/libmemcached/common.h +++ b/libmemcached/common.h @@ -1,9 +1,20 @@ +/* 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 LIBMEMCACHED_COMMON_H -#define LIBMEMCACHED_COMMON_H +#ifndef __LIBMEMCACHED_COMMON_H__ +#define __LIBMEMCACHED_COMMON_H__ #include "config.h" @@ -41,20 +52,36 @@ #include "libmemcached/memcached.h" -#include "libmemcached/memcached_watchpoint.h" +#include "libmemcached/watchpoint.h" + +typedef struct memcached_server_st * memcached_server_write_instance_st; + +LIBMEMCACHED_LOCAL +memcached_server_write_instance_st memcached_server_instance_fetch(memcached_st *ptr, uint32_t server_key); /* These are private not to be installed headers */ -#include "libmemcached/memcached_io.h" -#include "libmemcached/memcached_internal.h" +#include "libmemcached/do.h" +#include "libmemcached/io.h" +#include "libmemcached/internal.h" #include "libmemcached/libmemcached_probes.h" #include "libmemcached/memcached/protocol_binary.h" +#include "libmemcached/byteorder.h" +#include "libmemcached/response.h" /* string value */ -struct memcached_continuum_item_st { +struct memcached_continuum_item_st +{ uint32_t index; uint32_t value; }; +/* Yum, Fortran.... can you make the reference? */ +typedef enum { + MEM_NOT= -1, + MEM_FALSE= false, + MEM_TRUE= true, +} memcached_ternary_t; + #if !defined(__GNUC__) || (__GNUC__ == 2 && __GNUC_MINOR__ < 96) @@ -63,100 +90,62 @@ struct memcached_continuum_item_st { #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 - #define MEMCACHED_BLOCK_SIZE 1024 #define MEMCACHED_DEFAULT_COMMAND_SIZE 350 #define SMALL_STRING_LEN 1024 #define HUGE_STRING_LEN 8196 - -typedef enum { - MEM_NO_BLOCK= (1 << 0), - MEM_TCP_NODELAY= (1 << 1), - MEM_REUSE_MEMORY= (1 << 2), - MEM_USE_MD5= (1 << 3), - /* 4 was once Ketama */ - MEM_USE_CRC= (1 << 5), - MEM_USE_CACHE_LOOKUPS= (1 << 6), - MEM_SUPPORT_CAS= (1 << 7), - MEM_BUFFER_REQUESTS= (1 << 8), - MEM_USE_SORT_HOSTS= (1 << 9), - MEM_VERIFY_KEY= (1 << 10), - /* 11 used for weighted ketama */ - MEM_KETAMA_WEIGHTED= (1 << 11), - MEM_BINARY_PROTOCOL= (1 << 12), - MEM_HASH_WITH_PREFIX_KEY= (1 << 13), - MEM_NOREPLY= (1 << 14), - MEM_USE_UDP= (1 << 15), - MEM_AUTO_EJECT_HOSTS= (1 << 16) -} 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); +#ifdef __cplusplus +extern "C" { #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); LIBMEMCACHED_LOCAL -memcached_return memcached_connect(memcached_server_st *ptr); -LIBMEMCACHED_LOCAL -memcached_return memcached_response(memcached_server_st *ptr, - char *buffer, size_t buffer_length, - memcached_result_st *result); +memcached_return_t memcached_connect(memcached_server_write_instance_st ptr); + LIBMEMCACHED_LOCAL -void memcached_quit_server(memcached_server_st *ptr, uint8_t io_death); +memcached_return_t run_distribution(memcached_st *ptr); #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 -LIBMEMCACHED_LOCAL -memcached_return memcached_do(memcached_server_st *ptr, const void *commmand, - size_t command_length, uint8_t with_flush); -LIBMEMCACHED_LOCAL -memcached_return 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); - -LIBMEMCACHED_LOCAL -memcached_return memcached_key_test(const char **keys, size_t *key_length, - unsigned int number_of_keys); +// These are private +#define memcached_is_allocated(__object) ((__object)->options.is_allocated) +#define memcached_is_initialized(__object) ((__object)->options.is_initialized) +#define memcached_is_purging(__object) ((__object)->state.is_purging) +#define memcached_is_processing_input(__object) ((__object)->state.is_processing_input) +#define memcached_set_purging(__object, __value) ((__object)->state.is_purging= (__value)) +#define memcached_set_processing_input(__object, __value) ((__object)->state.is_processing_input= (__value)) +#define memcached_set_initialized(__object, __value) ((__object)->options.is_initialized(= (__value)) +#define memcached_set_allocated(__object, __value) ((__object)->options.is_allocated(= (__value)) LIBMEMCACHED_LOCAL -uint32_t generate_hash(memcached_st *ptr, const char *key, size_t key_length); +memcached_return_t memcached_key_test(const char * const *keys, + const size_t *key_length, + size_t number_of_keys); -#ifndef HAVE_HTONLL LIBMEMCACHED_LOCAL -extern uint64_t ntohll(uint64_t); -LIBMEMCACHED_LOCAL -extern uint64_t htonll(uint64_t); -#endif +memcached_return_t memcached_purge(memcached_server_write_instance_st ptr); LIBMEMCACHED_LOCAL -memcached_return memcached_purge(memcached_server_st *ptr); +memcached_server_st *memcached_server_create_with(const memcached_st *memc, + memcached_server_write_instance_st host, + const char *hostname, + in_port_t port, + uint32_t weight, + memcached_connection_t type); + -static inline memcached_return memcached_validate_key_length(size_t key_length, - bool binary) { +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) @@ -164,11 +153,73 @@ static inline memcached_return memcached_validate_key_length(size_t key_length, } else { - unlikely (key_length >= MEMCACHED_MAX_KEY) + unlikely (key_length >= MEMCACHED_MAX_KEY) return MEMCACHED_BAD_KEY_PROVIDED; } return MEMCACHED_SUCCESS; } -#endif /* LIBMEMCACHED_COMMON_H */ +#ifdef TCP_CORK + #define CORK TCP_CORK +#elif defined TCP_NOPUSH + #define CORK TCP_NOPUSH +#endif + +/* + test_cork() tries to enable TCP_CORK. IF TCP_CORK is not an option + on the system it returns false but sets errno to 0. Otherwise on + failure errno is set. +*/ +static inline memcached_ternary_t test_cork(memcached_server_st *ptr, int enable) +{ +#ifdef CORK + if (ptr->type != MEMCACHED_CONNECTION_TCP) + return MEM_FALSE; + + int err= setsockopt(ptr->fd, IPPROTO_TCP, CORK, + &enable, (socklen_t)sizeof(int)); + if (! err) + { + return MEM_TRUE; + } + + perror(strerror(errno)); + ptr->cached_errno= errno; + + return MEM_FALSE; +#else + (void)ptr; + (void)enable; + + ptr->cached_errno= 0; + + return MEM_NOT; +#endif +} + +static inline void libmemcached_free(const memcached_st *ptr, void *mem) +{ + ptr->allocators.free(ptr, mem, ptr->allocators.context); +} + +static inline void *libmemcached_malloc(const memcached_st *ptr, const size_t size) +{ + return ptr->allocators.malloc(ptr, size, ptr->allocators.context); +} + +static inline void *libmemcached_realloc(const memcached_st *ptr, void *mem, const size_t size) +{ + return ptr->allocators.realloc(ptr, mem, size, ptr->allocators.context); +} + +static inline void *libmemcached_calloc(const memcached_st *ptr, size_t nelem, size_t size) +{ + return ptr->allocators.calloc(ptr, nelem, size, ptr->allocators.context); +} + +#ifdef __cplusplus +} +#endif + +#endif /* __LIBMEMCACHED_COMMON_H__ */