pal/hermit: correctly round up microseconds in Thread::sleep

mkroening · mkroening · commit fdb5fc1fca6a · 2024-08-25T20:49:23.000+02:00
Signed-off-by: Martin Kröning &lt;martin.kroening@eonerc.rwth-aachen.de&gt;
diff --git a/std/src/sys/pal/hermit/thread.rs b/std/src/sys/pal/hermit/thread.rs
@@ -77,8 +77,10 @@ impl Thread {
 
     #[inline]
     pub fn sleep(dur: Duration) {
+        let micros = dur.as_micros() + if dur.subsec_nanos() % 1_000 > 0 { 1 } else { 0 };
+
         unsafe {
-            hermit_abi::usleep(dur.as_micros() as u64);
+            hermit_abi::usleep(micros as u64);
         }
     }
 

Original file line number	Diff line number	Diff line change
`@@ -77,8 +77,10 @@ impl Thread {`
`77`	`77`
`78`	`78`	`#[inline]`
`79`	`79`	`pub fn sleep(dur: Duration) {`
	`80`	`+ let micros = dur.as_micros() + if dur.subsec_nanos() % 1_000 > 0 { 1 } else { 0 };`
	`81`	`+`
`80`	`82`	`unsafe {`
`81`		`- hermit_abi::usleep(dur.as_micros() as u64);`
	`83`	`+ hermit_abi::usleep(micros as u64);`
`82`	`84`	`}`
`83`	`85`	`}`
`84`	`86`