Samuka007/asterinas
1
0
Fork 0
mirror of https://github.com/asterinas/asterinas.git synced 2025-06-08 21:06:48 +00:00
Code Issues Packages Projects Releases Wiki Activity

Clarify some API usages

Browse Source
This commit is contained in:
Ruihan Li 2025-04-21 23:51:16 +08:00 committed by Jianfeng Jiang
parent a993264265
commit d0719efcb4
4 changed files with 23 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
kernel/src/fs/procfs/pid/stat.rs
View File

@ -85,17 +85,13 @@ impl FileOps for StatFileOps {
let pid = process.pid();
let comm = process.executable_path();
let ppid = process.parent().pid();
let state = if process.status().is_zombie() {
'Z'
} else {
'R'
};
let pgrp = if let Some(pgrp) = process.process_group() {
pgrp.pgid()
} else {
0
};
let ppid = process.parent().pid();
let pgrp = process.pgid();
let mut stat_output = String::new();
writeln!(

2
kernel/src/process/kill.rs
View File

@ -166,7 +166,7 @@ fn current_thread_sender_ids(signum: Option<&SigNum>, ctx: &Context) -> SignalSe
let euid = credentials.euid();
let sid = signum.and_then(|signum| {
if *signum == SIGCONT {
Some(ctx.process.session().unwrap().sid())
Some(ctx.process.sid())
} else {
None
}

2
kernel/src/process/posix_thread/mod.rs
View File

@ -149,7 +149,7 @@ impl PosixThread {
if let Some(signum) = signum
&& *signum == SIGCONT
{
let receiver_sid = self.process().session().unwrap().sid();
let receiver_sid = self.process().sid();
if receiver_sid == sender.sid().unwrap() {
return Ok(());
}

25
kernel/src/process/process/mod.rs
View File

@ -344,11 +344,6 @@ impl Process {
// *********** Process group & Session ***********
/// Returns the process group to which the process belongs.
pub fn process_group(&self) -> Option<Arc<ProcessGroup>> {
self.process_group.lock().upgrade()
}
/// Returns the process group ID of the process.
//
// FIXME: If we call this method without holding the process table lock, it may return zero if
@ -365,9 +360,27 @@ impl Process {
self.session().map_or(0, |session| session.sid())
}
/// Returns the process group to which the process belongs.
///
/// **Deprecated:** This is a very poorly designed API. Almost every use of this API is wrong
/// because some race condition is not handled correctly. Such usages are being refactored and
/// this API will be removed soon. So DO NOT ATTEMPT TO USE THIS API IN NEW CODE unless you
/// know exactly what you're doing.
pub fn process_group(&self) -> Option<Arc<ProcessGroup>> {
self.process_group.lock().upgrade()
}
/// Returns the session to which the process belongs.
///
/// **Deprecated:** This is a very poorly designed API. Almost every use of this API is wrong
/// because some race condition is not handled correctly. Such usages are being refactored and
/// this API will be removed soon. So DO NOT ATTEMPT TO USE THIS API IN NEW CODE unless you
/// know exactly what you're doing.
pub fn session(&self) -> Option<Arc<Session>> {
self.process_group()?.session()
self.process_group
.lock()
.upgrade()
.and_then(|group| group.session())
}
/// Returns whether the process is session leader.