datastore.c File Reference

#include "datastore.h"
#include "datastore_internals.h"
#include "sl_log.h"
#include "sl_status.h"
#include <sqlite3.h>
#include <stddef.h>
#include <string.h>
#include <stdio.h>

Macros
#define	LOG_TAG   "datastore"

Enumerations
enum	datastore_value_type_t { DATASTORE_VALUE_TYPE_INT , DATASTORE_VALUE_TYPE_BLOB }

Functions
sl_status_t	datastore_table_init ()
	Generic datastore table initialization. More...
static sl_status_t	datastore_fetch_internal (const datastore_key_t key, void *value, unsigned int *size, datastore_value_type_t value_type)
	Fetch from the datastore. More...
static sl_status_t	datastore_store_internal (const datastore_key_t key, const void *value, unsigned int size, datastore_value_type_t value_type)
	Internal function to handle storing to the datastore. More...
static bool	datastore_contains_internal (const char *table, const datastore_key_t key)
	Test if a table contains a key. More...
sl_status_t	datastore_start_transaction ()
	start a datastore transaction More...
sl_status_t	datastore_commit_transaction ()
	commit an open transaction More...
sl_status_t	datastore_store_int (const datastore_key_t key, int64_t value)
	Store integer in the persistent datastore. More...
sl_status_t	datastore_fetch_int (const datastore_key_t key, int64_t *value)
	Fetch integer from the persistent datastore. More...
sl_status_t	datastore_store_arr (const datastore_key_t key, const uint8_t *value, unsigned int size)
	Store array in the persistent datastore. More...
sl_status_t	datastore_fetch_arr (const datastore_key_t key, uint8_t *value, unsigned int *size)
	Fetch array from the persistent datastore. More...
bool	datastore_contains_int (const datastore_key_t key)
	Check if the datastore contains an int value for given key. More...
bool	datastore_contains_arr (const datastore_key_t key)
	Check if the datastore contains an array value for given key. More...
bool	datastore_is_initialized ()
	Checks if the datastore is initialized and can be used. More...

Variables
static bool	ongoing_transaction = false

Macro Definition Documentation

LOG_TAG

#define LOG_TAG   "datastore"

Enumeration Type Documentation

datastore_value_type_t

enum datastore_value_type_t

Enumerator
DATASTORE_VALUE_TYPE_INT
DATASTORE_VALUE_TYPE_BLOB

Function Documentation

datastore_contains_internal()

static bool datastore_contains_internal ( const char *  table, const datastore_key_t  key  )

static

Test if a table contains a key.

Parameters

table	Table to look in
key	Key to look for

Returns

true key is found

false key is not found

datastore_fetch_internal()

static sl_status_t datastore_fetch_internal ( const datastore_key_t  key, void *  value, unsigned int *  size, datastore_value_type_t  value_type  )

static

Fetch from the datastore.

Parameters

key	Key to fetch data for
value	Pointer to where to store data
size	If value_type is DATASTORE_VALUE_TYPE_INT this is ignored If value_type is DATASTORE_VALUE_TYPE_BLOB In: the size of value, Out: Number of bytes written to value
value_type	type of data to fetch

Returns

sl_status_t SL_STATUS_OK success, SL_STATUS_NOT_FOUND key is not found, SL_STATUS_WOULD_OVERFLOW data is larger than size (only for blob) SL_STATUS_FAIL other failure,

datastore_store_internal()

static sl_status_t datastore_store_internal ( const datastore_key_t  key, const void *  value, unsigned int  size, datastore_value_type_t  value_type  )

static

Internal function to handle storing to the datastore.

Parameters

key	Key to store data for
value	Pointer to data to store
size	If value_type is DATASTORE_VALUE_TYPE_INT this is ignored If value_type is DATASTORE_VALUE_TYPE_BLOB, size of value
value_type	type of data to store

Returns

sl_status_t SQLITE_OK on success, SL_STATUS_FAIL on failure

datastore_table_init()

sl_status_t datastore_table_init

(

)

Generic datastore table initialization.

Returns

SL_STATUS_OK on success

SL_STATUS_FAIL on failure

Variable Documentation

ongoing_transaction

bool ongoing_transaction = false

static