Referencia del Archivo src/libmysql_std/mf_iocache.c

#include "mysys_priv.h"
#include <m_string.h>
#include <errno.h>

'defines'
#define	MAP_TO_USE_RAID
#define	lock_append_buffer(info)
#define	unlock_append_buffer(info)
#define	IO_ROUND_UP(X)   (((X)+IO_SIZE-1) & ~(IO_SIZE-1))
#define	IO_ROUND_DN(X)   ( (X) & ~(IO_SIZE-1))
#define	LOCK_APPEND_BUFFER
#define	UNLOCK_APPEND_BUFFER
Funciones
void	setup_io_cache (IO_CACHE *info)
int	init_io_cache (IO_CACHE *info, File file, uint cachesize, enum cache_type type, my_off_t seek_offset, pbool use_async_io, myf cache_myflags)
my_bool	reinit_io_cache (IO_CACHE *info, enum cache_type type, my_off_t seek_offset, pbool use_async_io __attribute__((unused)), pbool clear_cache)
int	_my_b_read (register IO_CACHE *info, byte *Buffer, uint Count)
int	_my_b_seq_read (register IO_CACHE *info, byte *Buffer, uint Count)
int	_my_b_get (IO_CACHE *info)
int	_my_b_write (register IO_CACHE *info, const byte *Buffer, uint Count)
int	my_b_append (register IO_CACHE *info, const byte *Buffer, uint Count)
int	my_b_safe_write (IO_CACHE *info, const byte *Buffer, uint Count)
int	my_block_write (register IO_CACHE *info, const byte *Buffer, uint Count, my_off_t pos)
int	my_b_flush_io_cache (IO_CACHE *info, int need_append_buffer_lock)
int	end_io_cache (IO_CACHE *info)

---

Documentación de los 'defines'

#define IO_ROUND_DN

(

X

)

( (X) & ~(IO_SIZE-1))

#define IO_ROUND_UP

(

X

)

(((X)+IO_SIZE-1) & ~(IO_SIZE-1))

#define lock_append_buffer

(

info

)

#define LOCK_APPEND_BUFFER

#define MAP_TO_USE_RAID

#define UNLOCK_APPEND_BUFFER

#define unlock_append_buffer

(

info

)

---

Documentación de las funciones

int _my_b_get

(

IO_CACHE *

info

)

int _my_b_read	(	register IO_CACHE *	info,
		byte *	Buffer,
		uint	Count
	)

int _my_b_seq_read	(	register IO_CACHE *	info,
		byte *	Buffer,
		uint	Count
	)

int _my_b_write	(	register IO_CACHE *	info,
		const byte *	Buffer,
		uint	Count
	)

int end_io_cache

(

IO_CACHE *

info

)

int init_io_cache	(	IO_CACHE *	info,
		File	file,
		uint	cachesize,
		enum cache_type	type,
		my_off_t	seek_offset,
		pbool	use_async_io,
		myf	cache_myflags
	)

int my_b_append	(	register IO_CACHE *	info,
		const byte *	Buffer,
		uint	Count
	)

int my_b_flush_io_cache	(	IO_CACHE *	info,
		int	need_append_buffer_lock
	)

int my_b_safe_write	(	IO_CACHE *	info,
		const byte *	Buffer,
		uint	Count
	)

int my_block_write	(	register IO_CACHE *	info,
		const byte *	Buffer,
		uint	Count,
		my_off_t	pos
	)

my_bool reinit_io_cache	(	IO_CACHE *	info,
		enum cache_type	type,
		my_off_t	seek_offset,
		pbool use_async_io	__attribute__(unused),
		pbool	clear_cache
	)

void setup_io_cache

(

IO_CACHE *

info

)