106 lines
3.2 KiB
C
106 lines
3.2 KiB
C
/*
|
|
* This library provides functions to read results sent on UDP by OwlPS
|
|
* Positioning.
|
|
* See the example program owlps-resultreader-udp.c.
|
|
*/
|
|
|
|
#ifndef _LIBOWLPS_RESULTREADER_CSV_
|
|
#define _LIBOWLPS_RESULTREADER_CSV_
|
|
|
|
#include <owlps.h>
|
|
|
|
#include <stdio.h>
|
|
#include <inttypes.h>
|
|
|
|
|
|
/* Maximum size of a result CSV string sent by OwlPS Positioning.
|
|
* Request's information:
|
|
* MAC, request type (2 chars), timestamp, ';'
|
|
* Plus, for each algorithm:
|
|
* Name, three coordinates, error (we assume the same size as the
|
|
* coordinates), area name, ';'
|
|
* Let's define OWL_NB_ALGORITHMS as the number of implemented
|
|
* algorithms (this is ugly).
|
|
*/
|
|
#define OWL_NB_ALGORITHMS 10
|
|
#define OWL_CSV_RESULT_REQUEST_STRLEN \
|
|
(OWL_ETHER_ADDR_STRLEN + OWL_TIMESTAMP_STRLEN + 3)
|
|
#define OWL_CSV_ALGORITHM_RESULT_STRLEN \
|
|
(OWL_ALGORITHM_STRLEN + 4 * OWL_COORDINATE_STRLEN + \
|
|
OWL_AREA_STRLEN + 1)
|
|
#define OWL_CSV_RESULT_STRLEN \
|
|
(OWL_CSV_RESULT_REQUEST_STRLEN + \
|
|
OWL_NB_ALGORITHMS * OWL_CSV_ALGORITHM_RESULT_STRLEN + 1)
|
|
|
|
/* Same thing, but for the simplified CSV strings created by
|
|
* *_to_csv_simple().
|
|
* Request's information is only the MAC address.
|
|
* For the algorithm:
|
|
* = 12 characters per coordinate + OWL_AREA_STRLEN
|
|
*/
|
|
#define OWL_CSV_RESULT_REQUEST_SIMPLE_STRLEN OWL_ETHER_ADDR_STRLEN
|
|
#define OWL_CSV_ALGORITHM_RESULT_SIMPLE_STRLEN \
|
|
(3 * OWL_COORDINATE_STRLEN + OWL_AREA_STRLEN + 1)
|
|
#define OWL_CSV_RESULT_SIMPLE_STRLEN \
|
|
(OWL_CSV_RESULT_REQUEST_SIMPLE_STRLEN + \
|
|
OWL_NB_ALGORITHMS * OWL_CSV_ALGORITHM_RESULT_SIMPLE_STRLEN + 1)
|
|
|
|
|
|
/* Linked list of algorithms' results.
|
|
* Each structure is the result of a single algorithm.
|
|
*/
|
|
typedef struct _owl_algorithm_result
|
|
{
|
|
char *algorithm ;
|
|
float x ;
|
|
float y ;
|
|
float z ;
|
|
float error ;
|
|
char *area ;
|
|
|
|
struct _owl_algorithm_result *next ;
|
|
} owl_algorithm_result ;
|
|
|
|
|
|
/* Results for a request. Includes the request's data, and the
|
|
* list of algorithms' results.
|
|
*/
|
|
typedef struct _owl_result
|
|
{
|
|
char *mobile_mac_addr ;
|
|
uint8_t request_type ;
|
|
owl_timestamp mobile_timestamp ;
|
|
unsigned int nb_results ;
|
|
owl_algorithm_result *results ;
|
|
} owl_result ;
|
|
|
|
|
|
owl_result* owl_receive_position(int sockfd) ;
|
|
owl_result* owl_fill_result(char *csv) ;
|
|
owl_algorithm_result* owl_fill_algorithm_result(char **csv) ;
|
|
|
|
void owl_result_to_csv(char dst[OWL_CSV_RESULT_STRLEN],
|
|
const owl_result *const src) ;
|
|
void
|
|
owl_algorithm_result_to_csv(char dst[OWL_CSV_ALGORITHM_RESULT_STRLEN],
|
|
const owl_algorithm_result *const src) ;
|
|
void owl_result_to_csv_simple(char dst[OWL_CSV_RESULT_SIMPLE_STRLEN],
|
|
const owl_result *const src) ;
|
|
void owl_algorithm_result_to_csv_simple
|
|
(char dst[OWL_CSV_ALGORITHM_RESULT_SIMPLE_STRLEN],
|
|
const owl_algorithm_result *const src) ;
|
|
|
|
void owl_fprint_result(FILE *stream, const owl_result *const src) ;
|
|
void owl_fprint_algorithm_result(FILE *stream,
|
|
const owl_algorithm_result *const src) ;
|
|
#define owl_print_result(SRC) \
|
|
(owl_fprint_result(stdout, (SRC)))
|
|
#define owl_print_algorithm_result(SRC) \
|
|
(owl_fprint_algorithm_result(stdout, (SRC)))
|
|
|
|
void owl_free_result(owl_result *result) ;
|
|
void owl_free_algorithm_result(owl_algorithm_result *algo) ;
|
|
|
|
|
|
#endif // _LIBOWLPS_RESULTREADER_CSV_
|