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Add syscall eventfd and eventfd2

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This commit is contained in:
Jianfeng Jiang
2023-12-04 07:21:31 +00:00
committed by Tate, Hongliang Tian
parent ccc4e6ec6b
commit 078f9a8891
12 changed files with 378 additions and 19 deletions
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9
kernel/aster-nix/src/syscall/write.rs
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@ -16,9 +16,12 @@ pub fn sys_write(fd: FileDesc, user_buf_ptr: Vaddr, user_buf_len: usize) -> Resu
fd, user_buf_ptr, user_buf_len
);
let current = current!();
let file_table = current.file_table().lock();
let file = file_table.get_file(fd)?;
let file = {
let current = current!();
let file_table = current.file_table().lock();
file_table.get_file(fd)?.clone()
};
if user_buf_len == 0 {
return Ok(SyscallReturn::Return(0));
}