From 41cba1de51b328979ff2d0261b4141bb4e128fe6 Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Fri, 15 Jan 2021 16:34:19 +0100
Subject: Implemented basic dev ready-state waiting

---
 kernel/features/syscall.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'kernel/features/syscall.c')

diff --git a/kernel/features/syscall.c b/kernel/features/syscall.c
index c5570c3..59965a5 100644
--- a/kernel/features/syscall.c
+++ b/kernel/features/syscall.c
@@ -40,8 +40,13 @@ void syscall_handler(struct regs *r)
 		if (vfs_ready((char *)r->ebx)) {
 			r->eax = (u32)vfs_read((char *)r->ebx, (void *)r->ecx, r->edx, r->esi);
 		} else {
-			proc_current()->state = PROC_SLEEPING;
+			struct proc *p = proc_current();
+			p->state = PROC_SLEEPING;
+			p->waits_for = vfs_find_dev((char *)r->ebx)->id;
 			scheduler(r);
+			sti();
+			while (1)
+				hlt();
 		}
 		break;
 	}
-- 
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