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Replace old user space read/write with new APIs

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This commit is contained in:
Chen Chengjun
2024-08-09 16:11:43 +08:00
committed by Tate, Hongliang Tian
parent 7ade2fcb57
commit 75da7fd30e
82 changed files with 252 additions and 329 deletions
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4
kernel/aster-nix/src/syscall/read.rs
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@ -3,7 +3,7 @@
use core::cmp::min;
use super::SyscallReturn;
use crate::{fs::file_table::FileDesc, prelude::*, util::write_bytes_to_user};
use crate::{fs::file_table::FileDesc, prelude::*};
pub fn sys_read(fd: FileDesc, user_buf_addr: Vaddr, buf_len: usize) -> Result<SyscallReturn> {
debug!(
@ -23,7 +23,7 @@ pub fn sys_read(fd: FileDesc, user_buf_addr: Vaddr, buf_len: usize) -> Result<Sy
let read_len = if buf_len != 0 {
let mut read_buf = vec![0u8; buf_len];
let read_len = file.read(&mut read_buf)?;
write_bytes_to_user(
CurrentUserSpace::get().write_bytes(
user_buf_addr,
&mut VmReader::from(&read_buf[..min(read_len, buf_len)]),
)?;