Changeset 28a5ebd in mainline for kernel/genarch/src/kbrd/kbrd_at.c

Timestamp:

2020-06-18T15:39:50Z (4 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

ce52c333

Parents:

4f663f3e

Message:

Use char32_t instead of wchat_t to represent UTF-32 strings

The intention of the native HelenOS string API has been always to
support Unicode in the UTF-8 and UTF-32 encodings as the sole character
representations and ignore the obsolete mess of older single-byte and
multibyte character encodings. Before C11, the wchar_t type has been
slightly misused for the purpose of the UTF-32 strings. The newer
char32_t type is obviously a much more suitable option. The standard
defines char32_t as uint_least32_t, thus we can take the liberty to fix
it to uint32_t.

To maintain compatilibity with the C Standard, the putwchar(wchar_t)
functions has been replaced by our custom putuchar(char32_t) functions
where appropriate.

File:

• kernel/genarch/src/kbrd/kbrd_at.c (modified) (5 diffs)

kernel/genarch/src/kbrd/kbrd_at.c

@@ -59 +59 @@
 #define AT_SCROLL_SCAN_CODE     0x7E
 
-static bool is_lock_key(wchar_t);
+static bool is_lock_key(char32_t);
 
 static indev_operations_t kbrd_raw_ops = {
@@ -69 +69 @@
  * @param sc Scancode of the key being released.
  */
-static void key_released(kbrd_instance_t *instance, wchar_t sc)
+static void key_released(kbrd_instance_t *instance, char32_t sc)
 {
         spinlock_lock(&instance->keylock);
@@ -96 +96 @@
  * @param sc Scancode of the key being pressed.
  */
-static void key_pressed(kbrd_instance_t *instance, wchar_t sc)
+static void key_pressed(kbrd_instance_t *instance, char32_t sc)
 {
         bool letter;
@@ -140 +140 @@
 
         while (true) {
-                wchar_t sc = indev_pop_character(&instance->raw);
+                char32_t sc = indev_pop_character(&instance->raw);
 
                 if (sc == AT_KEY_RELEASE) {
@@ -203 +203 @@
 }
 
-static bool is_lock_key(wchar_t sc)
+static bool is_lock_key(char32_t sc)
 {
         return ((sc == AT_CAPS_SCAN_CODE) || (sc == AT_NUM_SCAN_CODE) ||