Refactor UART handling and TUI dialogs: integrate UartThreadFlags structure, update uartListener to manage UART status, and add functions for person dialog operations.

src/main.c

@@ -22,7 +22,6 @@ int main(int argc, char const **argv)
     }
 
     int y_max, x_max;
-    BYTE uart_status = FALSE;
     char uart_address[51];
     pthread_t uart_thread;
 
@@ -79,17 +78,24 @@ int main(int argc, char const **argv)
 
     uartDialog(uart_address, x_max, y_max);
 
+    UartThreadFlags flags;
+    flags.end_from_main_flag = FALSE;
+    flags.wait_for_UART_flag = FALSE;
+
     UartThreadArgs *args = malloc(sizeof(UartThreadArgs));
     args->uart_address = uart_address;
     args->person_list_head = &person_list;
-    args->uart_status = &uart_status;
+    args->flags = &flags;
 
     pthread_create(&uart_thread, NULL, uartListener, args);
 
-    usleep(1000);
+    while (flags.wait_for_UART_flag)
+        ;
+
+    usleep(50000);
 
     attron(A_BOLD);
-    if (uart_status == TRUE)
+    if (flags.uart_status == TRUE)
     {
         mvprintw(y_max - 1, 0, "RFID reader status: ");
         attron(COLOR_PAIR(3));
@@ -108,6 +114,8 @@ int main(int argc, char const **argv)
 
     mainMenu(&person_list, argv[1], x_max, y_max);
 
+    flags.end_from_main_flag = TRUE;
+
     pthread_join(uart_thread, NULL);
     free(args);
 

src/rfid_handler.c

@@ -17,17 +17,18 @@ void *uartListener(void *arg)
 
     char *uart_address = thread_args->uart_address;
     list_t *person_list = thread_args->person_list_head;
-    BYTE *uart_status = thread_args->uart_status;
+    UartThreadFlags *flags = thread_args->flags;
+
+    flags->wait_for_UART_flag = TRUE;
 
     int uart = open(uart_address, O_RDWR | O_NOCTTY | O_NDELAY);
     if (uart == -1)
     {
-        //perror("Failed to open UART");
-        *uart_status = FALSE;
+        // perror("Failed to open UART");
+        flags->wait_for_UART_flag = FALSE;
+        flags->uart_status = FALSE;
         return NULL;
     }
-    *uart_status = TRUE;
-
     struct termios options;
     tcgetattr(uart, &options);
 
@@ -49,10 +50,14 @@ void *uartListener(void *arg)
 
     if (tcsetattr(uart, TCSANOW, &options) != 0)
     {
-        perror("tcsetattr");
-        exit(EXIT_FAILURE);
+        flags->wait_for_UART_flag = FALSE;
+        flags->uart_status = FALSE;
+        return NULL;
     }
 
+    flags->uart_status = TRUE;
+    flags->wait_for_UART_flag = FALSE;
+
     enum
     {
         SYNC0,
@@ -64,13 +69,29 @@ void *uartListener(void *arg)
 
     while (1)
     {
+        if (flags->end_from_main_flag)
+        {
+            close(uart);
+            return NULL;
+        }
+
         uint8_t byte;
         ssize_t n = read(uart, &byte, 1);
         if (n == -1)
         {
+            if (errno == EAGAIN || errno == EWOULDBLOCK)
+            {
+                usleep(1000);
+                continue;
+            }
             perror("read");
             exit(EXIT_FAILURE);
         }
+        if (n == 0)
+        {
+            usleep(1000);
+            continue;
+        }
 
         switch (state)
         {

src/tui.c

@@ -686,4 +686,14 @@ int exportDialog(list_t *_list, int terminal_x, int terminal_y)
 
 void editDatabaseMenu(list_t *_person_list, int terminal_x, int terminal_y)
 {
+}
+
+void addPersonDialog(list_t *_person_list, int terminal_x, int terminal_y)
+{
+
+}
+
+void deletePersonDialog(list_t *_person_list, int terminal_x, int terminal_y)
+{
+
 }