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query lap timestamps

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htom
2026-01-06 22:19:08 +01:00
parent f52d081d04
commit 615d8c7f06
1 changed files with 43 additions and 31 deletions
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70
src/main.c
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@@ -2,6 +2,7 @@
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "lapinfo.h"
@@ -90,49 +91,60 @@ int main(int argc, char **argv) {
duckdb_vector col1 = duckdb_data_chunk_get_vector(data_chunk, 0);
int32_t *col1_data = (int32_t *)duckdb_vector_get_data(col1);
uint64_t *col1_validity = duckdb_vector_get_validity(col1);
idx_t row_count = duckdb_data_chunk_get_size(data_chunk); // number of rows from the data chunk
for (idx_t row = 0; row < row_count; row++) {
if (duckdb_validity_row_is_valid(col1_validity, 0)) {
lap_count = col1_data[0];
}
}
duckdb_destroy_data_chunk(&data_chunk);
duckdb_destroy_result(&lap_count_res);
printf("Lap count: %d\n", lap_count);
LapInfo *session_data = malloc(sizeof(LapInfo) * lap_count);
LapInfo *session_data;
double lap_timestamps[lap_count];
memset(lap_timestamps, 0, sizeof(lap_timestamps));
LapInfo info = {.lap_number = 0,
.start_time = 0,
.throttle_pos = {.data_last_index = 0,
.data_size = 75000,
.frequency = 50,
.type = FLOAT,
.validity = NULL,
.data = malloc(sizeof(float) * 75000)},
.brake_pos = {.data_last_index = 0,
.data_size = 75000,
.frequency = 50,
.type = FLOAT,
.validity = NULL,
.data = malloc(sizeof(float) * 75000)},
.steering_pos = {.data_last_index = 0,
.data_size = 75000,
.frequency = 50,
.type = FLOAT,
.validity = NULL,
.data = malloc(sizeof(float) * 75000)},
.speed = {.data_last_index = 0,
.data_size = 75000,
.frequency = 50,
.type = FLOAT,
.validity = NULL,
.data = malloc(sizeof(float) * 75000)}};
duckdb_result lap_timestamps_res;
if (duckdb_query(conn, "Select ts as DOUBLE from Lap\n", &lap_timestamps_res) == DuckDBError) {
exit(5);
}
get_data_from_db("Select * from \"Throttle Pos\"\n", &conn, &info.throttle_pos);
int current_index = 0;
while (true) {
duckdb_data_chunk data_chunk_2 = duckdb_fetch_chunk(lap_timestamps_res);
if (!data_chunk_2) {
break;
}
destroyLapinfo(&info);
idx_t current_chunk_size = duckdb_data_chunk_get_size(data_chunk_2);
duckdb_vector col2 = duckdb_data_chunk_get_vector(data_chunk_2, 0);
double *ts_data = (double *)duckdb_vector_get_data(col2);
uint64_t *col2_validity = duckdb_vector_get_validity(col2);
for (idx_t row = 0; row < current_chunk_size; row++) {
if (!col2_validity || duckdb_validity_row_is_valid(col2_validity, row)) {
if (current_index < lap_count) {
lap_timestamps[current_index++] = ts_data[row];
}
}
}
duckdb_destroy_data_chunk(&data_chunk_2);
}
duckdb_destroy_result(&lap_timestamps_res);
for (int i = 0; i < lap_count; i++) {
printf("%f, ", lap_timestamps[i]);
}
printf("\n");
free(session_data);
printf("Shutting down HardCompound!\n");
printf("Closing database and any connection.\n");