/* 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__
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <unistd.h>
#include <limits.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/un.h>
#include <netinet/tcp.h>
#ifdef TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# 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"
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/io.h"
#include "libmemcached/do.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
{
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)
#define likely(x) if((x))
#define unlikely(x) if((x))
#else
#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
#ifdef __cplusplus
extern "C" {
#endif
LIBMEMCACHED_LOCAL
memcached_return_t memcached_connect(memcached_server_write_instance_st ptr);
LIBMEMCACHED_LOCAL
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
// 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
void set_last_disconnected_host(memcached_server_write_instance_st ptr);
LIBMEMCACHED_LOCAL
memcached_return_t memcached_key_test(const char * const *keys,
const size_t *key_length,
size_t number_of_keys);
LIBMEMCACHED_LOCAL
memcached_return_t memcached_purge(memcached_server_write_instance_st ptr);
LIBMEMCACHED_LOCAL
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_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;
}
#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__ */