added all the new error codes for the exits currently in the code

Makefile

@@ -5,6 +5,7 @@ VENDORDIR = vendor
 
 target ?= linux
 profile ?= debug
+valgrind ?= false
 
 ifeq ($(target), windows)
 	CC = x86_64-w64-mingw32-gcc
@@ -56,7 +57,13 @@ $(BUILDDIR)/%.o: $(SRCDIR)/%.c
 clean:
 	rm -rf $(BUILDDIR)
 
+ifeq ($(valgrind), true)
+    RUN_CMD = valgrind --leak-check=full ./$(BUILDDIR)/$(APPNAME)$(EXT)
+else
+    RUN_CMD = ./$(BUILDDIR)/$(APPNAME)$(EXT)
+endif
+
 run: all
-	./$(BUILDDIR)/$(APPNAME)$(EXT)
+	$(RUN_CMD) ./data/Circuit.duckdb
 
 .PHONY: all clean run

src/exit_code.h

@@ -0,0 +1,9 @@
+typedef enum {
+    EXIT_OK = 0,
+    ERR_ARGUMENT = 1,
+    ERR_FILE = 2,
+    ERR_DATABASE = 3,
+    ERR_CONNECTION = 4,
+    ERR_MEMORY = 5,
+    ERR_QUERY = 6,
+} exit_code;

src/main.c

@@ -2,39 +2,73 @@
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
 
+#include "exit_code.h"
 #include "lapinfo.h"
 
+bool is_valid_path(const char *path) {
+    if (path == NULL) {
+        return false;
+    }
+
+    const char *dot = strrchr(path, '.'); // find the last dot which is for the extension
+    if (!dot || strcmp(dot, ".duckdb") != 0) {
+        return false;
+    }
+
+    struct stat path_stat;
+    if (stat(path, &path_stat) != 0) {
+        return false; // path does not exist
+    }
+
+    if (!S_ISREG(path_stat.st_mode)) {
+        return false; // checks if it is a regular file
+    }
+
+    return true;
+}
+
 void get_data_from_db(const char *query, duckdb_connection *conn, TelemetryInfo *info) {
     duckdb_result result;
-    int32_t iterations = 0;
-    int32_t number_of_data_points = 0;
 
     duckdb_query(*conn, query, &result);
 
     while (true) {
-        iterations++;
-
         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
-        number_of_data_points += row_count;
 
         // set column
         duckdb_vector col1 = duckdb_data_chunk_get_vector(data_chunk, 0);
-        float *col1_data = (float *)duckdb_vector_get_data(col1);
+        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)) {
-                // put a switch here based on the info from the struct
-                ((float *)info->data)[info->data_last_index] = col1_data[row];
-                info->data_last_index++;
-                // TODO: set info->data_size as capacity at struct creation
-                printf("%f, ", col1_data[row]);
+                switch (info->type) {
+                case FLOAT:
+                    ((float *)info->data)[info->data_last_index] = ((float *)col1_data)[row];
+                    info->data_last_index++;
+                    break;
+                case BOOL:
+                    ((bool *)info->data)[info->data_last_index] = ((bool *)col1_data)[row];
+                    info->data_last_index++;
+                    break;
+                case DOUBLE:
+                    ((double *)info->data)[info->data_last_index] = ((double *)col1_data)[row];
+                    info->data_last_index++;
+                    break;
+                case INT:
+                    ((int32_t *)info->data)[info->data_last_index] = ((int32_t *)col1_data)[row];
+                    info->data_last_index++;
+                    break;
+                }
+                // printf("%f, ", ((float *)col1_data)[row]);
             } else {
                 printf("NULL");
             }
@@ -43,177 +77,120 @@ void get_data_from_db(const char *query, duckdb_connection *conn, TelemetryInfo
         duckdb_destroy_data_chunk(&data_chunk);
     }
     duckdb_destroy_result(&result);
-    printf("\nNumber of iterations: %d, number of data points: %d\n", iterations, number_of_data_points);
 }
 
 int main(int argc, char **argv) {
-    printf("Hello from HardCompound!\n");
+    printf("\nHello from HardCompound!\n");
 
     if (argc < 2) {
         printf("You need to specify a duckdb file path! Terminating!\n");
-        exit(1);
+        exit(ERR_ARGUMENT);
     }
+
+    if (!is_valid_path(argv[1])) {
+        printf("The file you gave is not valid. Exiting!");
+        exit(ERR_FILE);
+    }
+
     printf("First argument: %s\n", argv[1]);
 
     duckdb_database db;
     if (duckdb_open(argv[1], &db) == DuckDBError) {
         printf("Error opening duckdb file, terminating!\n");
-        exit(2);
+        exit(ERR_DATABASE);
     }
 
     duckdb_connection conn;
     if (duckdb_connect(db, &conn) == DuckDBError) {
         printf("Error connecting to the duckdb database! Terminating!\n");
-        exit(3);
+        duckdb_close(&db);
+        exit(ERR_CONNECTION);
     }
 
-    const char *channel_tables[] = {"Ambient Temperature",
-                                    "Brake Pos",
-                                    "Brake Pos Unfiltered",
-                                    "Brake Thickness",
-                                    "Brakes Air Temp",
-                                    "Brakes Force",
-                                    "Brakes Temp",
-                                    "Clutch Pos",
-                                    "Clutch Pos Unfiltered",
-                                    "Clutch RPM",
-                                    "Drag",
-                                    "Engine Oil Temp",
-                                    "Engine RPM",
-                                    "Engine Water Temp",
-                                    "FFB Output",
-                                    "Front3rdDeflection",
-                                    "FrontDownForce",
-                                    "FrontRideHeight",
-                                    "FrontWingHeight",
-                                    "Fuel Level",
-                                    "G Force Lat",
-                                    "G Force Long",
-                                    "G Force Vert",
-                                    "GPS Latitude",
-                                    "GPS Longitude",
-                                    "GPS Speed",
-                                    "GPS Time",
-                                    "Ground Speed",
-                                    "Lap Dist",
-                                    "Lateral Acceleration",
-                                    "Longitudinal Acceleration",
-                                    "OverheatingState",
-                                    "Path Lateral",
-                                    "ReadDownForce",
-                                    "Rear3rdDeflection",
-                                    "RearRideHeight",
-                                    "Regen Rate",
-                                    "RideHeights",
-                                    "SoC",
-                                    "Steered Angle",
-                                    "Steering Pos",
-                                    "Steering Pos Unfiltered",
-                                    "Steering Shaft Torque",
-                                    "Susp Pos",
-                                    "Throttle Pos",
-                                    "Throttle Pos Unfiltered",
-                                    "Time Behind Next",
-                                    "Total Dist",
-                                    "Track Edge",
-                                    "Track Temperature",
-                                    "Turbo Boost Pressure",
-                                    "Tyres Wear",
-                                    "TyresCarcassTemp",
-                                    "TyresPressure",
-                                    "TyresRimTemp",
-                                    "TyresRubberTemp",
-                                    "TyresTempCentre",
-                                    "TyresTempLeft",
-                                    "TyresTempRight",
-                                    "Virtual Energy",
-                                    "Wheel Speed",
-                                    "Wind Heading",
-                                    "Wind Speed",
-                                    "Yaw Rate"};
+    // get how many laps is in the session and  allocate that many LapInfo-s
+    duckdb_result lap_count_res;
+    int32_t lap_count = 0;
+    duckdb_query(conn, "Select count(value) from Lap\n", &lap_count_res);
 
-    const int channel_table_count = sizeof(channel_tables) / sizeof(channel_tables[0]);
+    duckdb_data_chunk data_chunk = duckdb_fetch_chunk(lap_count_res);
+    if (!data_chunk) {
+        printf("Error in retrieving laps");
+        duckdb_disconnect(&conn);
+        duckdb_close(&db);
+        exit(ERR_QUERY);
+    }
 
-    const char *event_tables[] = {"ABS",
-                                  "ABSLevel",
-                                  "AntiStall Activated",
-                                  "Best LapTime",
-                                  "Best Sector1",
-                                  "Best Sector2",
-                                  "Brake Bias Rear",
-                                  "Brake Migration",
-                                  "CloudDarkness",
-                                  "Current LapTime",
-                                  "Current Sector",
-                                  "Current Sector1",
-                                  "Current Sector2",
-                                  "Engine Max RPM",
-                                  "Finish Status",
-                                  "FrontFlapActivated",
-                                  "FuelMixtureMap",
-                                  "Gear",
-                                  "Headlights State",
-                                  "In Pits",
-                                  "Lap",
-                                  "Lap Time",
-                                  "Last Sector1",
-                                  "Last Sector2",
-                                  "LastImpactMagnitude",
-                                  "LaunchControlActive",
-                                  "Minimum Path Wetness",
-                                  "OffpathWetness",
-                                  "RearFlapActivated",
-                                  "RearFlapLegalStatus",
-                                  "Sector1 Flag",
-                                  "Sector2 Flag",
-                                  "Sector3 Flag",
-                                  "Speed Limiter",
-                                  "SurfaceTypes",
-                                  "TC",
-                                  "TCCut",
-                                  "TCLevel",
-                                  "TCSlipAngle",
-                                  "TyresCompound",
-                                  "WheelsDetached",
-                                  "Yellow Flag State"};
+    // set column
+    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
 
-    const int event_table_count = sizeof(event_tables) / sizeof(event_tables[0]);
+    for (idx_t row = 0; row < row_count; row++) {
+        if (duckdb_validity_row_is_valid(col1_validity, 0)) {
+            lap_count = col1_data[0];
+        }
+    }
 
-    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_destroy_data_chunk(&data_chunk);
+    duckdb_destroy_result(&lap_count_res);
 
-    get_data_from_db("Select * from \"Throttle Pos\"\n", &conn, &info.throttle_pos);
-    destroyLapinfo(&info);
+    printf("Lap count: %d\n", lap_count);
+    LapInfo *session_data = calloc(lap_count, sizeof(LapInfo));
+    double *lap_timestamps = calloc(lap_count, sizeof(double));
 
+    if (!session_data) {
+        printf("Session data failed to allocate!");
+        exit(ERR_MEMORY);
+    }
+
+    if (!lap_timestamps) {
+        printf("Lap timestaps array failed to init!");
+        exit(ERR_MEMORY);
+    }
+
+    duckdb_result lap_timestamps_res;
+    if (duckdb_query(conn, "Select ts as DOUBLE from Lap\n", &lap_timestamps_res) == DuckDBError) {
+        exit(ERR_QUERY);
+    }
+
+    int current_index = 0;
+    while (true) {
+        duckdb_data_chunk data_chunk_2 = duckdb_fetch_chunk(lap_timestamps_res);
+        if (!data_chunk_2) {
+            break;
+        }
+
+        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");
     duckdb_disconnect(&conn);
     duckdb_close(&db);
 
-    return 0;
+    return EXIT_OK;
 }

src/tables.c

@@ -0,0 +1,111 @@
+const char *channel_tables[] = {"Ambient Temperature",
+                                "Brake Pos",
+                                "Brake Pos Unfiltered",
+                                "Brake Thickness",
+                                "Brakes Air Temp",
+                                "Brakes Force",
+                                "Brakes Temp",
+                                "Clutch Pos",
+                                "Clutch Pos Unfiltered",
+                                "Clutch RPM",
+                                "Drag",
+                                "Engine Oil Temp",
+                                "Engine RPM",
+                                "Engine Water Temp",
+                                "FFB Output",
+                                "Front3rdDeflection",
+                                "FrontDownForce",
+                                "FrontRideHeight",
+                                "FrontWingHeight",
+                                "Fuel Level",
+                                "G Force Lat",
+                                "G Force Long",
+                                "G Force Vert",
+                                "GPS Latitude",
+                                "GPS Longitude",
+                                "GPS Speed",
+                                "GPS Time",
+                                "Ground Speed",
+                                "Lap Dist",
+                                "Lateral Acceleration",
+                                "Longitudinal Acceleration",
+                                "OverheatingState",
+                                "Path Lateral",
+                                "ReadDownForce",
+                                "Rear3rdDeflection",
+                                "RearRideHeight",
+                                "Regen Rate",
+                                "RideHeights",
+                                "SoC",
+                                "Steered Angle",
+                                "Steering Pos",
+                                "Steering Pos Unfiltered",
+                                "Steering Shaft Torque",
+                                "Susp Pos",
+                                "Throttle Pos",
+                                "Throttle Pos Unfiltered",
+                                "Time Behind Next",
+                                "Total Dist",
+                                "Track Edge",
+                                "Track Temperature",
+                                "Turbo Boost Pressure",
+                                "Tyres Wear",
+                                "TyresCarcassTemp",
+                                "TyresPressure",
+                                "TyresRimTemp",
+                                "TyresRubberTemp",
+                                "TyresTempCentre",
+                                "TyresTempLeft",
+                                "TyresTempRight",
+                                "Virtual Energy",
+                                "Wheel Speed",
+                                "Wind Heading",
+                                "Wind Speed",
+                                "Yaw Rate"};
+
+const int channel_table_count = sizeof(channel_tables) / sizeof(channel_tables[0]);
+
+const char *event_tables[] = {"ABS",
+                              "ABSLevel",
+                              "AntiStall Activated",
+                              "Best LapTime",
+                              "Best Sector1",
+                              "Best Sector2",
+                              "Brake Bias Rear",
+                              "Brake Migration",
+                              "CloudDarkness",
+                              "Current LapTime",
+                              "Current Sector",
+                              "Current Sector1",
+                              "Current Sector2",
+                              "Engine Max RPM",
+                              "Finish Status",
+                              "FrontFlapActivated",
+                              "FuelMixtureMap",
+                              "Gear",
+                              "Headlights State",
+                              "In Pits",
+                              "Lap",
+                              "Lap Time",
+                              "Last Sector1",
+                              "Last Sector2",
+                              "LastImpactMagnitude",
+                              "LaunchControlActive",
+                              "Minimum Path Wetness",
+                              "OffpathWetness",
+                              "RearFlapActivated",
+                              "RearFlapLegalStatus",
+                              "Sector1 Flag",
+                              "Sector2 Flag",
+                              "Sector3 Flag",
+                              "Speed Limiter",
+                              "SurfaceTypes",
+                              "TC",
+                              "TCCut",
+                              "TCLevel",
+                              "TCSlipAngle",
+                              "TyresCompound",
+                              "WheelsDetached",
+                              "Yellow Flag State"};
+
+const int event_table_count = sizeof(event_tables) / sizeof(event_tables[0]);