From 64dc2ffc10b3002e6f28e97f48ba6684aa08bcaa Mon Sep 17 00:00:00 2001
From: Yu Chen <yuchen@mail.tsinghua.edu.cn>
Date: Sat, 18 Jun 2022 17:57:54 +0800
Subject: [PATCH] add/update gui user apps/libs

---
 user/src/bin/gui.rs | 19 +++++++++++++++++++
 user/src/lib.rs     |  4 +++-
 user/src/syscall.rs |  3 +++
 3 files changed, 25 insertions(+), 1 deletion(-)
 create mode 100644 user/src/bin/gui.rs

diff --git a/user/src/bin/gui.rs b/user/src/bin/gui.rs
new file mode 100644
index 00000000..e3f7ec2c
--- /dev/null
+++ b/user/src/bin/gui.rs
@@ -0,0 +1,19 @@
+#![no_std]
+#![no_main]
+
+use user_lib::create_desktop;
+
+#[macro_use]
+extern crate user_lib;
+
+
+
+#[no_mangle]
+pub fn main() -> i32 {
+    println!("gui");
+    create_desktop();
+    println!("exit pass.");
+    loop{}
+    0
+}
+
diff --git a/user/src/lib.rs b/user/src/lib.rs
index 729eaef3..6f57edd4 100644
--- a/user/src/lib.rs
+++ b/user/src/lib.rs
@@ -198,7 +198,9 @@ pub fn condvar_signal(condvar_id: usize) {
 pub fn condvar_wait(condvar_id: usize, mutex_id: usize) {
     sys_condvar_wait(condvar_id, mutex_id);
 }
-
+pub fn create_desktop() {
+    sys_create_desktop();
+}
 #[macro_export]
 macro_rules! vstore {
     ($var_ref: expr, $value: expr) => {
diff --git a/user/src/syscall.rs b/user/src/syscall.rs
index b4bb67a0..3f36f533 100644
--- a/user/src/syscall.rs
+++ b/user/src/syscall.rs
@@ -154,3 +154,6 @@ pub fn sys_condvar_signal(condvar_id: usize) -> isize {
 pub fn sys_condvar_wait(condvar_id: usize, mutex_id: usize) -> isize {
     syscall(SYSCALL_CONDVAR_WAIT, [condvar_id, mutex_id, 0])
 }
+pub fn sys_create_desktop() -> isize {
+    syscall(2000, [0, 0, 0])
+}
\ No newline at end of file