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fix problem of sys_poll

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This commit is contained in:
Yukiteru Lee 2020-08-25 09:22:33 +08:00
parent 341451c90b
commit ec4871278d
1 changed files with 7 additions and 5 deletions
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12
kernel/src/syscall/fs.rs
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@ -116,7 +116,7 @@ impl Syscall<'_> {
pub async fn sys_poll(
&mut self,
ufds: UserInOutPtr<PollFd>,
mut ufds: UserInOutPtr<PollFd>,
nfds: usize,
timeout_msecs: usize,
) -> SysResult {
@ -132,7 +132,7 @@ impl Syscall<'_> {
// check whether the fds is valid and is owned by this process
let condvars = alloc::vec![&(*TICK_ACTIVITY), &(*SOCKET_ACTIVITY)];
let polls = ufds.read_array(nfds).unwrap();
let mut polls = ufds.read_array(nfds).unwrap();
if !proc.pid.is_init() {
info!("poll: fds: {:?}", polls);
@ -142,7 +142,7 @@ impl Syscall<'_> {
#[must_use = "future does nothing unless polled/`await`-ed"]
struct PollFuture<'a> {
polls: Vec<PollFd>,
polls: &'a mut Vec<PollFd>,
syscall: &'a Syscall<'a>,
}
@ -193,10 +193,12 @@ impl Syscall<'_> {
}
let future = PollFuture {
polls,
polls: &mut polls,
syscall: self,
};
future.await
let res = future.await;
ufds.write_array(&polls)?;
res
}
pub fn sys_pselect6(