libretrodb.c File Reference

#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <streams/file_stream.h>
#include <retro_endianness.h>
#include <string/stdstring.h>
#include <compat/strl.h>
#include "libretrodb.h"
#include "rmsgpack_dom.h"
#include "rmsgpack.h"
#include "bintree.h"
#include "query.h"

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Classes
struct	node_iter_ctx
struct	libretrodb
struct	libretrodb_index
struct	libretrodb_metadata
struct	libretrodb_header
struct	libretrodb_cursor

Macros
#define	MAGIC_NUMBER   "RARCHDB"

Typedefs
typedef struct libretrodb_metadata	libretrodb_metadata_t
typedef struct libretrodb_header	libretrodb_header_t

Functions
static int	libretrodb_read_metadata (RFILE *fd, libretrodb_metadata_t *md)
static int	libretrodb_write_metadata (RFILE *fd, libretrodb_metadata_t *md)
static int	libretrodb_validate_document (const struct rmsgpack_dom_value *doc)
int	libretrodb_create (RFILE *fd, libretrodb_value_provider value_provider, void *ctx)
static int	libretrodb_read_index_header (RFILE *fd, libretrodb_index_t *idx)
static void	libretrodb_write_index_header (RFILE *fd, libretrodb_index_t *idx)
void	libretrodb_close (libretrodb_t *db)
int	libretrodb_open (const char *path, libretrodb_t *db)
static int	libretrodb_find_index (libretrodb_t *db, const char *index_name, libretrodb_index_t *idx)
static int	binsearch (const void *buff, const void *item, uint64_t count, uint8_t field_size, uint64_t *offset)
int	libretrodb_find_entry (libretrodb_t *db, const char *index_name, const void *key, struct rmsgpack_dom_value *out)
int	libretrodb_cursor_reset (libretrodb_cursor_t *cursor)
int	libretrodb_cursor_read_item (libretrodb_cursor_t *cursor, struct rmsgpack_dom_value *out)
void	libretrodb_cursor_close (libretrodb_cursor_t *cursor)
int	libretrodb_cursor_open (libretrodb_t *db, libretrodb_cursor_t *cursor, libretrodb_query_t *q)
static int	node_iter (void *value, void *ctx)
static uint64_t	libretrodb_tell (libretrodb_t *db)
static int	node_compare (const void *a, const void *b, void *ctx)
int	libretrodb_create_index (libretrodb_t *db, const char *name, const char *field_name)
libretrodb_cursor_t *	libretrodb_cursor_new (void)
void	libretrodb_cursor_free (libretrodb_cursor_t *dbc)
libretrodb_t *	libretrodb_new (void)
void	libretrodb_free (libretrodb_t *db)

Variables
static struct rmsgpack_dom_value	sentinal

Macro Definition Documentation

MAGIC_NUMBER

#define MAGIC_NUMBER   "RARCHDB"

Typedef Documentation

libretrodb_header_t

typedef struct libretrodb_header libretrodb_header_t

libretrodb_metadata_t

typedef struct libretrodb_metadata libretrodb_metadata_t

Function Documentation

binsearch()

static int binsearch ( const void *  buff, const void *  item, uint64_t  count, uint8_t  field_size, uint64_t *  offset  )

static

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libretrodb_close()

void libretrodb_close

(

libretrodb_t *

db

)

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libretrodb_create()

int libretrodb_create	(	RFILE *	fd,
		libretrodb_value_provider	value_provider,
		void *	ctx
	)

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libretrodb_create_index()

int libretrodb_create_index	(	libretrodb_t *	db,
		const char *	name,
		const char *	field_name
	)

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libretrodb_cursor_close()

void libretrodb_cursor_close

(

libretrodb_cursor_t *

cursor

)

libretrodb_cursor_close: : Handle to database cursor.

Closes cursor and frees up allocated memory.

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libretrodb_cursor_free()

void libretrodb_cursor_free

(

libretrodb_cursor_t *

dbc

)

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libretrodb_cursor_new()

libretrodb_cursor_t* libretrodb_cursor_new

(

void

)

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libretrodb_cursor_open()

int libretrodb_cursor_open	(	libretrodb_t *	db,
		libretrodb_cursor_t *	cursor,
		libretrodb_query_t *	q
	)

libretrodb_cursor_open: : Handle to database. : Handle to database cursor. : Query to execute.

Opens cursor to database based on query .

Returns: 0 if successful, otherwise negative.

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libretrodb_cursor_read_item()

int libretrodb_cursor_read_item	(	libretrodb_cursor_t *	cursor,
		struct rmsgpack_dom_value *	out
	)

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libretrodb_cursor_reset()

int libretrodb_cursor_reset

(

libretrodb_cursor_t *

cursor

)

libretrodb_cursor_reset: : Handle to database cursor.

Resets cursor.

Returns: ???.

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libretrodb_find_entry()

int libretrodb_find_entry	(	libretrodb_t *	db,
		const char *	index_name,
		const void *	key,
		struct rmsgpack_dom_value *	out
	)

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libretrodb_find_index()

static int libretrodb_find_index ( libretrodb_t *  db, const char *  index_name, libretrodb_index_t *  idx  )

static

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libretrodb_free()

void libretrodb_free

(

libretrodb_t *

db

)

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libretrodb_new()

libretrodb_t* libretrodb_new

(

void

)

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libretrodb_open()

int libretrodb_open	(	const char *	path,
		libretrodb_t *	db
	)

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libretrodb_read_index_header()

static int libretrodb_read_index_header ( RFILE *  fd, libretrodb_index_t *  idx  )

static

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libretrodb_read_metadata()

static int libretrodb_read_metadata ( RFILE *  fd, libretrodb_metadata_t *  md  )

static

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libretrodb_tell()

static uint64_t libretrodb_tell ( libretrodb_t *  db )

static

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libretrodb_validate_document()

static int libretrodb_validate_document ( const struct rmsgpack_dom_value *  doc )

static

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libretrodb_write_index_header()

static void libretrodb_write_index_header ( RFILE *  fd, libretrodb_index_t *  idx  )

static

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libretrodb_write_metadata()

static int libretrodb_write_metadata ( RFILE *  fd, libretrodb_metadata_t *  md  )

static

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node_compare()

static int node_compare ( const void *  a, const void *  b, void *  ctx  )

static

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node_iter()

static int node_iter ( void *  value, void *  ctx  )

static

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Variable Documentation

sentinal

struct rmsgpack_dom_value sentinal

static