From afa61601c4c92aa88b159c596ff02a18661c7426 Mon Sep 17 00:00:00 2001
From: 4lDO2 <4lDO2@protonmail.com>
Date: Fri, 30 Jun 2023 14:49:08 +0200
Subject: [PATCH] Add ContextStatus::HardBlocked.
---
src/context/context.rs | 17 +++++++++++++++++
src/scheme/sys/context.rs | 2 +-
2 files changed, 18 insertions(+), 1 deletion(-)
diff --git a/src/context/context.rs b/src/context/context.rs
index aed8a03a..bcd42f65 100644
--- a/src/context/context.rs
+++ b/src/context/context.rs
@@ -35,10 +35,27 @@ int_like!(ContextId, AtomicContextId, usize, AtomicUsize);
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
pub enum Status {
Runnable,
+
+ // TODO: Rename to SoftBlocked and move status_reason to this variant.
+
+ /// Not currently runnable, typically due to some blocking syscall, but it can be trivially
+ /// unblocked by e.g. signals.
Blocked,
+
+ /// Not currently runnable, and cannot be runnable until manually unblocked, depending on what
+ /// reason.
+ HardBlocked { reason: HardBlockedReason },
+
Stopped(usize),
Exited(usize),
}
+#[derive(Copy, Clone, Debug, Eq, PartialEq)]
+pub enum HardBlockedReason {
+ AwaitingMmap,
+ // TODO: PageFaultOom?
+ // TODO: NotYetStarted/ManuallyBlocked (when new contexts are created)
+ // TODO: ptrace_stop?
+}
#[derive(Copy, Clone, Debug)]
pub struct WaitpidKey {
diff --git a/src/scheme/sys/context.rs b/src/scheme/sys/context.rs
index 2a5aaca7..632b2e0e 100644
--- a/src/scheme/sys/context.rs
+++ b/src/scheme/sys/context.rs
@@ -43,7 +43,7 @@ pub fn resource() -> Result<Vec<u8>> {
context::Status::Runnable => {
stat_string.push('R');
},
- context::Status::Blocked => if context.wake.is_some() {
+ context::Status::Blocked | context::Status::HardBlocked { .. } => if context.wake.is_some() {
stat_string.push('S');
} else {
stat_string.push('B');
--
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