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Introduce PollAdaptor and Poller

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This commit is contained in:
Ruihan Li
2024-08-31 23:52:52 +08:00
committed by Tate, Hongliang Tian
parent f12e502ab0
commit e32fb2f91b
4 changed files with 117 additions and 53 deletions
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8
kernel/src/syscall/poll.rs
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@ -7,7 +7,7 @@ use crate::{
events::IoEvents,
fs::{file_handle::FileLike, file_table::FileDesc},
prelude::*,
process::signal::PollHandle,
process::signal::Poller,
};
pub fn sys_poll(fds: Vaddr, nfds: u64, timeout: i32, ctx: &Context) -> Result<SyscallReturn> {
@ -126,20 +126,20 @@ fn hold_files(poll_fds: &[PollFd], ctx: &Context) -> (FileResult, Vec<Option<Arc
}
enum PollerResult {
AllRegistered(PollHandle),
AllRegistered(Poller),
EventFoundAt(usize),
}
/// Registers the files with a poller, or exits early if some events are detected.
fn register_poller(poll_fds: &[PollFd], files: &[Option<Arc<dyn FileLike>>]) -> PollerResult {
let mut poller = PollHandle::new();
let mut poller = Poller::new();
for (i, (poll_fd, file)) in poll_fds.iter().zip(files.iter()).enumerate() {
let Some(file) = file else {
continue;
};
let events = file.poll(poll_fd.events(), Some(&mut poller));
let events = file.poll(poll_fd.events(), Some(poller.as_handle_mut()));
if events.is_empty() {
continue;
}