From e83b51f220c704d41e7e61c37cb9c9c9de9dc354 Mon Sep 17 00:00:00 2001
From: Leonmmcoset <testmod@qq.com>
Date: Sat, 18 Apr 2026 12:36:32 +0800
Subject: [PATCH] =?UTF-8?q?fd=E5=AD=90=E7=B3=BB=E7=BB=9F3?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 cleonos/c/apps/cmd_runtime.c       | 18 ++++++++++++++++--
 cleonos/c/apps/hello_main.c        |  2 +-
 cleonos/c/apps/shell/shell_input.c | 18 ++++++++++++------
 cleonos/c/apps/shell/shell_util.c  | 16 ++++++++++++++--
 cleonos/c/apps/spin_main.c         |  2 +-
 cleonos/c/apps/top_main.c          |  9 +++------
 6 files changed, 47 insertions(+), 18 deletions(-)

diff --git a/cleonos/c/apps/cmd_runtime.c b/cleonos/c/apps/cmd_runtime.c
index 869f77d..47d93c2 100644
--- a/cleonos/c/apps/cmd_runtime.c
+++ b/cleonos/c/apps/cmd_runtime.c
@@ -221,6 +221,8 @@ void ush_parse_line(const char *line, char *out_cmd, u64 cmd_size, char *out_arg
 
 void ush_write(const char *text) {
     u64 len;
+    const char *cursor;
+    u64 left;
 
     if (text == (const char *)0) {
         return;
@@ -232,11 +234,23 @@ void ush_write(const char *text) {
         return;
     }
 
-    (void)cleonos_sys_tty_write(text, len);
+    cursor = text;
+    left = len;
+
+    while (left > 0ULL) {
+        u64 wrote = cleonos_sys_fd_write(1ULL, cursor, left);
+
+        if (wrote == 0ULL || wrote == (u64)-1) {
+            break;
+        }
+
+        cursor += wrote;
+        left -= wrote;
+    }
 }
 
 void ush_write_char(char ch) {
-    (void)cleonos_sys_tty_write_char(ch);
+    (void)cleonos_sys_fd_write(1ULL, &ch, 1ULL);
 }
 
 void ush_writeln(const char *text) {
diff --git a/cleonos/c/apps/hello_main.c b/cleonos/c/apps/hello_main.c
index d41bf16..405f9c8 100644
--- a/cleonos/c/apps/hello_main.c
+++ b/cleonos/c/apps/hello_main.c
@@ -2,6 +2,6 @@
 
 int cleonos_app_main(void) {
     static const char msg[] = "[USER][HELLO] Hello world from /hello.elf\n";
-    (void)cleonos_sys_tty_write(msg, (u64)(sizeof(msg) - 1U));
+    (void)cleonos_sys_fd_write(1ULL, msg, (u64)(sizeof(msg) - 1U));
     return 0;
 }
diff --git a/cleonos/c/apps/shell/shell_input.c b/cleonos/c/apps/shell/shell_input.c
index 93c6fa4..4deeda7 100644
--- a/cleonos/c/apps/shell/shell_input.c
+++ b/cleonos/c/apps/shell/shell_input.c
@@ -326,13 +326,19 @@ static void ush_render_emit(const char *buffer, u64 length) {
 
     while (offset < length) {
         u64 chunk = length - offset;
+        u64 written;
 
         if (chunk > USH_RENDER_EMIT_CHUNK) {
             chunk = USH_RENDER_EMIT_CHUNK;
         }
 
-        (void)cleonos_sys_tty_write(buffer + offset, chunk);
-        offset += chunk;
+        written = cleonos_sys_fd_write(1ULL, buffer + offset, chunk);
+
+        if (written == 0ULL || written == (u64)-1) {
+            break;
+        }
+
+        offset += written;
     }
 }
 
@@ -466,11 +472,11 @@ static void ush_history_down(ush_state *sh) {
 }
 
 static char ush_read_char_blocking(void) {
-    for (;;) {
-        u64 ch = cleonos_sys_kbd_get_char();
+    char ch = '\0';
 
-        if (ch != (u64)-1) {
-            return (char)(ch & 0xFFULL);
+    for (;;) {
+        if (cleonos_sys_fd_read(0ULL, &ch, 1ULL) == 1ULL) {
+            return ch;
         }
 
         __asm__ volatile("pause");
diff --git a/cleonos/c/apps/shell/shell_util.c b/cleonos/c/apps/shell/shell_util.c
index 98e424f..1e28bb6 100644
--- a/cleonos/c/apps/shell/shell_util.c
+++ b/cleonos/c/apps/shell/shell_util.c
@@ -341,7 +341,19 @@ void ush_write(const char *text) {
     }
 
     if (should_write_tty != 0) {
-        (void)cleonos_sys_tty_write(text, len);
+        const char *cursor = text;
+        u64 left = len;
+
+        while (left > 0ULL) {
+            u64 wrote = cleonos_sys_fd_write(1ULL, cursor, left);
+
+            if (wrote == 0ULL || wrote == (u64)-1) {
+                break;
+            }
+
+            cursor += wrote;
+            left -= wrote;
+        }
     }
 }
 
@@ -365,7 +377,7 @@ void ush_write_char(char ch) {
     }
 
     if (should_write_tty != 0) {
-        (void)cleonos_sys_tty_write_char(ch);
+        (void)cleonos_sys_fd_write(1ULL, &ch, 1ULL);
     }
 }
 
diff --git a/cleonos/c/apps/spin_main.c b/cleonos/c/apps/spin_main.c
index dd744a7..416bb7f 100644
--- a/cleonos/c/apps/spin_main.c
+++ b/cleonos/c/apps/spin_main.c
@@ -5,7 +5,7 @@ int cleonos_app_main(void) {
         "spin: busy loop started (test Alt+Ctrl+C force stop)\n";
     volatile u64 noise = 0xC1E0C1E0ULL;
 
-    (void)cleonos_sys_tty_write(banner, (u64)(sizeof(banner) - 1U));
+    (void)cleonos_sys_fd_write(1ULL, banner, (u64)(sizeof(banner) - 1U));
 
     for (;;) {
         noise ^= (noise << 7);
diff --git a/cleonos/c/apps/top_main.c b/cleonos/c/apps/top_main.c
index 054a5a1..1df3388 100644
--- a/cleonos/c/apps/top_main.c
+++ b/cleonos/c/apps/top_main.c
@@ -147,18 +147,15 @@ static void ush_top_render_frame(u64 frame_index, u64 delay_ticks) {
 
 static int ush_top_sleep_or_quit(u64 delay_ticks) {
     u64 i;
+    char ch = '\0';
 
     if (delay_ticks == 0ULL) {
         delay_ticks = 1ULL;
     }
 
     for (i = 0ULL; i < delay_ticks; i++) {
-        u64 ch = cleonos_sys_kbd_get_char();
-
-        if (ch != (u64)-1) {
-            char c = (char)(ch & 0xFFULL);
-
-            if (c == 'q' || c == 'Q') {
+        if (cleonos_sys_fd_read(0ULL, &ch, 1ULL) == 1ULL) {
+            if (ch == 'q' || ch == 'Q') {
                 return 1;
             }
         }