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fix: disable test harness for no_std binaries, fix shutdown to best-effort notify-and-halt, use CapSlot newtypes

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This commit is contained in:
Gabriel Kaszewski
2026-10-18 04:01:39 +02:00
parent 0389c85108
commit e092fa4ae5
4 changed files with 28 additions and 13 deletions
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26
crates/init/src/shutdown.rs
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@@ -1,23 +1,23 @@
const SHUTDOWN_TIMEOUT_TICKS: usize = 50_000_000;
use types::bounded::CapSlot;
pub fn shutdown(server_endpoints: &[usize], endpoint_count: usize) -> ! {
const SHUTDOWN_TIMEOUT_TICKS: usize = 50_000_000;
const SHUTDOWN_SIGNAL: usize = 0xFFFF_FFFF;
/// Best-effort shutdown: notify all servers, wait briefly for them to flush, then halt.
///
/// Servers that receive the shutdown signal should flush state to storage and exit.
/// We can't block on individual acks because a crashed server would deadlock us.
/// Instead, we yield repeatedly until the timeout expires, giving servers time to finish.
pub fn shutdown(server_endpoints: &[CapSlot], endpoint_count: usize) -> ! {
for i in 0..endpoint_count {
let ep = server_endpoints[i];
if ep != 0 {
userspace::syscall::send(ep, 0xFFFF_FFFF, 0, 0, 0);
}
let ep = server_endpoints[i].value() as usize;
userspace::syscall::send(ep, SHUTDOWN_SIGNAL, 0, 0, 0);
}
let start = userspace::syscall::get_time();
let deadline = start + SHUTDOWN_TIMEOUT_TICKS;
let mut acks = 0usize;
while acks < endpoint_count {
let now = userspace::syscall::get_time();
if now >= deadline {
break;
}
acks += 1;
while userspace::syscall::get_time() < deadline {
userspace::syscall::yield_now();
}