From a12ffaa8a2634454778fb1d93497391c1e3443ea Mon Sep 17 00:00:00 2001
From: Bananymous <oskari.alaranta@bananymous.com>
Date: Wed, 6 Dec 2023 13:12:56 +0200
Subject: [PATCH] Kernel: Make sleep syscall interruptable

---
 kernel/kernel/Process.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/kernel/kernel/Process.cpp b/kernel/kernel/Process.cpp
index cc205e25..3297e4df 100644
--- a/kernel/kernel/Process.cpp
+++ b/kernel/kernel/Process.cpp
@@ -598,7 +598,14 @@ namespace Kernel
 
 	BAN::ErrorOr<long> Process::sys_sleep(int seconds)
 	{
-		SystemTimer::get().sleep(seconds * 1000);
+		// FIXME: this is very dumb
+		uint64_t wake_time = SystemTimer::get().ms_since_boot() + seconds * 1000;
+		while (SystemTimer::get().ms_since_boot() < wake_time)
+		{
+			if (Thread::current().is_interrupted_by_signal())
+				return BAN::Math::div_round_up<long>(wake_time - SystemTimer::get().ms_since_boot(), 1000);
+			Scheduler::get().reschedule();
+		}
 		return 0;
 	}