moved functions to seperate file and query the 4 main table data (throttle, brake, speed and steering)

src/array_utils.c

@@ -0,0 +1,56 @@
+#include <duckdb.h>
+#include <stdio.h>
+
+#include "arrays.h"
+
+void allocate_array_for_db_data(float_array *array, const char *table, duckdb_connection *conn) {
+    char query[100];
+    sprintf(query, "Select count(*) from \"%s\"", table);
+    duckdb_result result;
+    duckdb_query(*conn, query, &result);
+
+    duckdb_data_chunk chunk = duckdb_fetch_chunk(result);
+    if (!chunk) {
+        return;
+    }
+
+    duckdb_vector col1 = duckdb_data_chunk_get_vector(chunk, 0);
+    int32_t *col1_data = (int32_t *)duckdb_vector_get_data(col1);
+    uint64_t *col1_validity = duckdb_vector_get_validity(col1);
+
+    if (duckdb_validity_row_is_valid(col1_validity, 0)) {
+        printf("capycity of array: %d\n", col1_data[0]);
+        float_array_allocate(array, col1_data[0]);
+    }
+    duckdb_destroy_data_chunk(&chunk);
+    duckdb_destroy_result(&result);
+}
+
+void get_data_from_db(const char *query, duckdb_connection *conn, float_array *info) {
+    duckdb_result result;
+
+    duckdb_query(*conn, query, &result);
+
+    while (true) {
+        duckdb_data_chunk data_chunk = duckdb_fetch_chunk(result);
+        if (!data_chunk) {
+            break;
+        }
+
+        idx_t row_count = duckdb_data_chunk_get_size(data_chunk); // number of rows from the data chunk
+
+        // set column
+        duckdb_vector col1 = duckdb_data_chunk_get_vector(data_chunk, 0);
+        void *col1_data = duckdb_vector_get_data(col1);
+        uint64_t *col1_validity = duckdb_vector_get_validity(col1);
+
+        for (idx_t row = 0; row < row_count; row++) {
+            if (duckdb_validity_row_is_valid(col1_validity, row)) {
+                float_array_set(info, ((float *)col1_data)[row], -1);
+            }
+        }
+
+        duckdb_destroy_data_chunk(&data_chunk);
+    }
+    duckdb_destroy_result(&result);
+}

src/array_utils.h

@@ -0,0 +1,6 @@
+#include <duckdb.h>
+
+#include "arrays.h"
+
+void allocate_array_for_db_data(float_array *array, const char *table, duckdb_connection *conn);
+void get_data_from_db(const char *query, duckdb_connection *conn, float_array *info);

src/main.c

@@ -5,6 +5,7 @@
 #include <string.h>
 #include <sys/stat.h>
 
+#include "array_utils.h"
 #include "arrays.h"
 #include "exit_code.h"
 #include "lapinfo.h"
@@ -31,58 +32,6 @@ bool is_valid_path(const char *path) {
     return true;
 }
 
-void allocate_array_for_db_data(float_array *array, const char *table, duckdb_connection *conn) {
-    char query[100];
-    sprintf(query, "Select count(*) from \"%s\"", table);
-    duckdb_result result;
-    duckdb_query(*conn, query, &result);
-
-    duckdb_data_chunk chunk = duckdb_fetch_chunk(result);
-    if (!chunk) {
-        return;
-    }
-
-    duckdb_vector col1 = duckdb_data_chunk_get_vector(chunk, 0);
-    int32_t *col1_data = (int32_t *)duckdb_vector_get_data(col1);
-    uint64_t *col1_validity = duckdb_vector_get_validity(col1);
-
-    if (duckdb_validity_row_is_valid(col1_validity, 0)) {
-        printf("capycity of array: %d", col1_data[0]);
-        float_array_allocate(array, col1_data[0]);
-    }
-    duckdb_destroy_data_chunk(&chunk);
-    duckdb_destroy_result(&result);
-}
-
-void get_data_from_db(const char *query, duckdb_connection *conn, float_array *info) {
-    duckdb_result result;
-
-    duckdb_query(*conn, query, &result);
-
-    while (true) {
-        duckdb_data_chunk data_chunk = duckdb_fetch_chunk(result);
-        if (!data_chunk) {
-            break;
-        }
-
-        idx_t row_count = duckdb_data_chunk_get_size(data_chunk); // number of rows from the data chunk
-
-        // set column
-        duckdb_vector col1 = duckdb_data_chunk_get_vector(data_chunk, 0);
-        void *col1_data = duckdb_vector_get_data(col1);
-        uint64_t *col1_validity = duckdb_vector_get_validity(col1);
-
-        for (idx_t row = 0; row < row_count; row++) {
-            if (duckdb_validity_row_is_valid(col1_validity, row)) {
-                float_array_set(info, ((float *)col1_data)[row], -1);
-            }
-        }
-
-        duckdb_destroy_data_chunk(&data_chunk);
-    }
-    duckdb_destroy_result(&result);
-}
-
 int main(int argc, char **argv) {
     duckdb_database db;
     duckdb_connection conn;
@@ -195,10 +144,38 @@ int main(int argc, char **argv) {
     allocate_array_for_db_data(&throttle_data_all, "Throttle Pos", &conn);
     get_data_from_db("Select value as FLOAT from \"Throttle Pos\"\n", &conn, &throttle_data_all);
     for (int32_t i = 0; i < throttle_data_all.length; ++i) {
-        printf(" %f", float_array_get(&throttle_data_all, i));
+        // printf(" %f", float_array_get(&throttle_data_all, i));
     }
 
-    printf("Shutting down HardCompound!\n");
+    // brake
+    float_array brake_data_all;
+    float_array_init(&brake_data_all);
+    allocate_array_for_db_data(&brake_data_all, "Brake Pos", &conn);
+    get_data_from_db("Select value as FLOAT from \"Brake Pos\"\n", &conn, &brake_data_all);
+    for (int32_t i = 0; i < brake_data_all.length; ++i) {
+        // printf(" %f", float_array_get(&brake_data_all, i));
+    }
+
+    // steering
+    float_array steering_data_all;
+    float_array_init(&steering_data_all);
+    allocate_array_for_db_data(&steering_data_all, "Steering Pos", &conn);
+    get_data_from_db("Select value as FLOAT from \"Steering Pos\"\n", &conn, &steering_data_all);
+    for (int32_t i = 0; i < steering_data_all.length; ++i) {
+        // printf(" %f", float_array_get(&steering_data_all, i));
+    }
+    // select avg(((value1+value2+value3+value4)/4)*3.6) as speed from "Wheel Speed"
+    // speed
+    float_array speed_data_all;
+    float_array_init(&speed_data_all);
+    allocate_array_for_db_data(&speed_data_all, "Wheel Speed", &conn);
+    get_data_from_db("select ((value1+value2+value3+value4)/4)*3.6 as speed from \"Wheel Speed\"", &conn,
+                     &speed_data_all);
+    for (int32_t i = 0; i < speed_data_all.length; ++i) {
+        // printf(" %f", float_array_get(&speed_data_all, i));
+    }
+
+    printf("\nShutting down HardCompound!\n");
 
     printf("Closing database and any connection.\n");
     goto cleanup;