Tateisi/rcore-tutorial
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Support signal mechanism for ch8(only works on signal-thread apps)

Browse source
This commit is contained in:
Yifan Wu 2022-01-23 13:14:56 -08:00
parent 59f13cb536
commit 26bc01f3bc
17 changed files with 235 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

17
os/src/task/mod.rs
View file

@ -3,6 +3,7 @@ mod id;
mod manager;
mod process;
mod processor;
mod signal;
mod switch;
mod task;
@ -15,11 +16,12 @@ use switch::__switch;
pub use context::TaskContext;
pub use id::{kstack_alloc, pid_alloc, KernelStack, PidHandle};
pub use manager::add_task;
pub use manager::{add_task, pid2process, remove_from_pid2process};
pub use processor::{
current_kstack_top, current_process, current_task, current_trap_cx, current_trap_cx_user_va,
current_user_token, run_tasks, schedule, take_current_task,
};
pub use signal::SignalFlags;
pub use task::{TaskControlBlock, TaskStatus};
pub fn suspend_current_and_run_next() {
@ -64,6 +66,7 @@ pub fn exit_current_and_run_next(exit_code: i32) {
// however, if this is the main thread of current process
// the process should terminate at once
if tid == 0 {
remove_from_pid2process(process.getpid());
let mut process_inner = process.inner_exclusive_access();
// mark this process as a zombie process
process_inner.is_zombie = true;
@ -111,3 +114,15 @@ lazy_static! {
pub fn add_initproc() {
let _initproc = INITPROC.clone();
}
pub fn check_signals_of_current() -> Option<(i32, &'static str)> {
let process = current_process();
let process_inner = process.inner_exclusive_access();
process_inner.signals.check_error()
}
pub fn current_add_signal(signal: SignalFlags) {
let process = current_process();
let mut process_inner = process.inner_exclusive_access();
process_inner.signals |= signal;
}