From 5ba02ca940475c7dc266e6eb5785c92f2d011e0a Mon Sep 17 00:00:00 2001
From: Andrew Plaza <andrew.plaza15@gmail.com>
Date: Tue, 25 Apr 2017 14:40:23 -0400
Subject: [PATCH] Reset PIT_TICKS to 0 on context::switch, change condition for
context::switch [irq]
Set the counter to 0 when context is to be switched in the PIT interrupt,
and change the condition for context switching from % 10 to >= 10.
---
src/interrupt/irq.rs | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/interrupt/irq.rs b/src/interrupt/irq.rs
index 2a27f81a..d1fd7ab6 100644
--- a/src/interrupt/irq.rs
+++ b/src/interrupt/irq.rs
@@ -51,7 +51,9 @@ interrupt!(pit, {
pic::MASTER.ack();
- if PIT_TICKS.fetch_add(1, Ordering::SeqCst) % 10 == 0 {
+ if PIT_TICKS.fetch_add(1, Ordering::SeqCst) >= 10 {
+ PIT_TICKS.store(0, Ordering::SeqCst);
+ assert_eq!(PIT_TICKS.load(Ordering::SeqCst), 0);
context::switch();
}
--
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