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Implement many process syscalls.

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This commit is contained in:
Yifan Wu 2020-12-10 11:57:26 +08:00
parent e56ea17566
commit 8fbadfc951
20 changed files with 383 additions and 88 deletions
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4
os/src/syscall/fs.rs
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@ -1,5 +1,5 @@
use crate::mm::translated_byte_buffer;
use crate::task::{current_user_token, suspend_current_and_run_next};
use crate::task::{current_user_token};
use crate::sbi::console_getchar;
const FD_STDIN: usize = 0;
@ -28,7 +28,7 @@ pub fn sys_read(fd: usize, buf: *const u8, len: usize) -> isize {
loop {
c = console_getchar();
if c == 0 {
suspend_current_and_run_next();
//suspend_current_and_run_next();
continue;
} else {
break;