qiurui
/
asterinas
mirror of https://github.com/asterinas/asterinas.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Fix the mask set in the signalfd

This commit is contained in:
Chen Chengjun 2025-07-08 07:10:46 +00:00 committed by Jianfeng Jiang
parent 20c2e967fe
commit 2a34a041c4
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
kernel/src/syscall/signalfd.rs
View File

@ -119,7 +119,9 @@ fn update_existing_signalfd(
}
fn register_observer(ctx: &Context, signal_file: &Arc<SignalFile>, mask: SigMask) -> Result<()> {
let filter = SigEventsFilter::new(mask);
// The `mask` specifies the set of signals that are accepted by the signalfd,
// so we need to filter out the signals that are not in the mask.
let filter = SigEventsFilter::new(!mask);
ctx.posix_thread
.register_sigqueue_observer(signal_file.observer_ref(), filter);
@ -175,7 +177,7 @@ impl SignalFile {
fn update_signal_mask(&self, new_mask: SigMask) -> Result<()> {
if let Some(thread) = current_thread!().as_posix_thread() {
thread.unregister_sigqueue_observer(&self.weak_self);
let filter = SigEventsFilter::new(new_mask);
let filter = SigEventsFilter::new(!new_mask);
thread.register_sigqueue_observer(self.weak_self.clone(), filter);
}
self.signals_mask.store(new_mask, Ordering::Relaxed);