mf_keycaches.cc File Reference

Handling of multiple key caches. More...

#include <string.h>
#include <sys/types.h>
#include <string>
#include "keycache.h"
#include "m_ctype.h"
#include "map_helpers.h"
#include "my_dbug.h"
#include "my_inttypes.h"
#include "my_sys.h"
#include "mysql/psi/mysql_rwlock.h"
#include "mysql/service_mysql_alloc.h"
#include "mysys/mysys_priv.h"
#include "template_utils.h"

Classes
struct	SAFE_HASH_ENTRY
struct	SAFE_HASH

Functions
static bool	safe_hash_init (SAFE_HASH *hash, uchar *default_value)
static void	safe_hash_free (SAFE_HASH *hash)
static uchar *	safe_hash_search (SAFE_HASH *hash, const uchar *key, uint length)
static bool	safe_hash_set (SAFE_HASH *hash, const uchar *key, uint length, uchar *data)
static void	safe_hash_change (SAFE_HASH *hash, uchar *old_data, uchar *new_data)
bool	multi_keycache_init (void)
void	multi_keycache_free (void)
KEY_CACHE *	multi_key_cache_search (uchar *key, uint length)
bool	multi_key_cache_set (const uchar *key, uint length, KEY_CACHE *key_cache)
void	multi_key_cache_change (KEY_CACHE *old_data, KEY_CACHE *new_data)

Variables
static SAFE_HASH	key_cache_hash

Detailed Description

Handling of multiple key caches.

The idea is to have a thread safe hash on the table name, with a default key cache value that is returned if the table name is not in the cache.

Function Documentation

multi_key_cache_change()

void multi_key_cache_change	(	KEY_CACHE *	old_data,
		KEY_CACHE *	new_data
	)

multi_key_cache_search()

KEY_CACHE * multi_key_cache_search	(	uchar *	key,
		uint	length
	)

multi_key_cache_set()

bool multi_key_cache_set	(	const uchar *	key,
		uint	length,
		KEY_CACHE *	key_cache
	)

multi_keycache_free()

void multi_keycache_free

(

void

)

multi_keycache_init()

bool multi_keycache_init

(

void

)

safe_hash_change()

static void safe_hash_change ( SAFE_HASH *  hash, uchar *  old_data, uchar *  new_data  )

static

safe_hash_free()

static void safe_hash_free ( SAFE_HASH *  hash )

static

safe_hash_init()

static bool safe_hash_init ( SAFE_HASH *  hash, uchar *  default_value  )

static

safe_hash_search()

static uchar * safe_hash_search ( SAFE_HASH *  hash, const uchar *  key, uint  length  )

static

safe_hash_set()

static bool safe_hash_set ( SAFE_HASH *  hash, const uchar *  key, uint  length, uchar *  data  )

static

Variable Documentation

key_cache_hash

SAFE_HASH key_cache_hash

static