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Replace the Pausers' usage with Waiter/WaitQueue

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This commit is contained in:
Chen Chengjun
2024-09-14 10:12:31 +08:00
committed by Tate, Hongliang Tian
parent 822caf34f4
commit 42e28763c5
12 changed files with 110 additions and 91 deletions
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14
kernel/src/syscall/eventfd.rs
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@ -14,6 +14,8 @@
//! refer to the man 2 eventfd documentation.
//!
use ostd::sync::WaitQueue;
use super::SyscallReturn;
use crate::{
events::{IoEvents, Observer},
@ -24,7 +26,7 @@ use crate::{
},
prelude::*,
process::{
signal::{Pauser, Pollable, Pollee, Poller},
signal::{Pollable, Pollee, Poller},
Gid, Uid,
},
time::clocks::RealTimeClock,
@ -75,7 +77,7 @@ struct EventFile {
counter: Mutex<u64>,
pollee: Pollee,
flags: Mutex<Flags>,
write_pauser: Arc<Pauser>,
write_wait_queue: WaitQueue,
}
impl EventFile {
@ -84,12 +86,12 @@ impl EventFile {
fn new(init_val: u64, flags: Flags) -> Self {
let counter = Mutex::new(init_val);
let pollee = Pollee::new(IoEvents::OUT);
let write_pauser = Pauser::new();
let write_wait_queue = WaitQueue::new();
Self {
counter,
pollee,
flags: Mutex::new(flags),
write_pauser,
write_wait_queue,
}
}
@ -112,7 +114,7 @@ impl EventFile {
self.pollee.del_events(IoEvents::IN);
}
self.write_pauser.resume_all();
self.write_wait_queue.wake_all();
return;
}
@ -215,7 +217,7 @@ impl FileLike for EventFile {
}
// Wait until counter can be added val to
self.write_pauser
self.write_wait_queue
.pause_until(|| self.add_counter_val(supplied_value).ok())?;
Ok(write_len)