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Add MutexSpin and several syscalls.

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This commit is contained in:
Yifan Wu 2021-10-07 12:40:47 -07:00
parent d1e55d85d8
commit 8974a29245
8 changed files with 159 additions and 2 deletions
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15
user/src/syscall.rs
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@ -14,6 +14,9 @@ const SYSCALL_WAITPID: usize = 260;
const SYSCALL_THREAD_CREATE: usize = 1000;
const SYSCALL_GETTID: usize = 1001;
const SYSCALL_WAITTID: usize = 1002;
const SYSCALL_MUTEX_CREATE: usize = 1010;
const SYSCALL_MUTEX_LOCK: usize = 1011;
const SYSCALL_MUTEX_UNLOCK: usize = 1012;
fn syscall(id: usize, args: [usize; 3]) -> isize {
let mut ret: isize;
@ -93,3 +96,15 @@ pub fn sys_gettid() -> isize {
pub fn sys_waittid(tid: usize) -> isize {
syscall(SYSCALL_WAITTID, [tid, 0, 0])
}
pub fn sys_mutex_create() -> isize {
syscall(SYSCALL_MUTEX_CREATE, [0, 0, 0])
}
pub fn sys_mutex_lock(id: usize) -> isize {
syscall(SYSCALL_MUTEX_LOCK, [id, 0, 0])
}
pub fn sys_mutex_unlock(id: usize) -> isize {
syscall(SYSCALL_MUTEX_UNLOCK, [id, 0, 0])
}