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[lib-result] Add {algorithm,}result_to_csv() 

Add owl_result_to_csv() and owl_algorithm_result_to_csv(), that
allow to get an owl_result or owl_algorithm_result as a CSV string.
This commit is contained in:
Matteo Cypriani 2011-08-19 17:22:43 +02:00
parent 44055929b1
commit 8da063b597
2 changed files with 62 additions and 0 deletions
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56
libowlps-resultreader-udp/libowlps-resultreader-udp.c
View File

@ -182,6 +182,62 @@ void owl_fill_result(owl_result **result, char *csv)
}
/*
* Converts an owl_result back to a CSV string.
* 'dst' must be an allocated string of at least OWL_CSV_RESULT_STRLEN
* characters.
*/
void owl_result_to_csv(char dst[OWL_CSV_RESULT_STRLEN],
const owl_result *const src)
{
size_t dst_len ;
char timestamp_str[OWL_TIMESTAMP_STRLEN] ;
assert(src) ;
owl_timestamp_to_string(timestamp_str, src->mobile_timestamp) ;
snprintf(dst, OWL_CSV_RESULT_REQUEST_STRLEN,
"%s;%"PRIu8";%s",
src->mobile_mac_addr,
src->request_type,
timestamp_str) ;
dst_len = strlen(dst) ;
owl_algorithm_result *algo = src->results ;
while (algo)
{
char algo_str[OWL_CSV_ALGORITHM_RESULT_STRLEN] ;
owl_algorithm_result_to_csv(algo_str, algo) ;
dst[dst_len++] = ';' ;
strncpy(dst + dst_len, algo_str, OWL_CSV_ALGORITHM_RESULT_STRLEN) ;
dst_len += strlen(algo_str) ;
algo = algo->next ;
}
}
/*
* Converts an owl_algorithm_result back to a CSV string.
* 'dst' must be an allocated string of at least
* OWL_CSV_ALGORITHM_RESULT_STRLEN characters.
*/
void
owl_algorithm_result_to_csv(char dst[OWL_CSV_ALGORITHM_RESULT_STRLEN],
const owl_algorithm_result *const src)
{
assert(src) ;
snprintf(dst, OWL_CSV_ALGORITHM_RESULT_STRLEN,
"%s;%f;%f;%f;%f;%s",
src->algorithm,
src->x,
src->y,
src->z,
src->error,
src->area ? src->area : "") ;
}
/*
* Prints an owl_result to the given stream.
*/

6
libowlps-resultreader-udp/owlps-resultreader-udp.h
View File

@ -57,6 +57,12 @@ typedef struct _owl_result
void owl_receive_position(int sockfd, owl_result **result) ;
void owl_fill_result(owl_result **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_fprint_result(FILE *stream, const owl_result *const src) ;
void owl_fprint_algorithm_result(FILE *stream,
const owl_algorithm_result *const src) ;