From b667ea0fbd26af222f828199e7b9a7e62ad98081 Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Sat, 22 Aug 2020 23:31:47 +0200
Subject: Some window fb and yield implementation

---
 kernel/features/proc.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

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

diff --git a/kernel/features/proc.c b/kernel/features/proc.c
index d1a2780..1c0b443 100644
--- a/kernel/features/proc.c
+++ b/kernel/features/proc.c
@@ -17,8 +17,11 @@ u32 quantum = 0;
 struct list *proc_list;
 struct node *current;
 
+// TODO: Use less memcpy and only copy relevant registers
 void scheduler(struct regs *regs)
 {
+	timer_handler();
+
 	if (quantum == 0) {
 		quantum = PROC_QUANTUM;
 	} else {
@@ -34,8 +37,6 @@ void scheduler(struct regs *regs)
 	if (current)
 		memcpy(&((struct proc *)current->data)->regs, regs, sizeof(struct regs));
 
-	timer_handler();
-
 	if (current && current->next)
 		current = current->next;
 	else
@@ -71,9 +72,9 @@ void scheduler(struct regs *regs)
 
 		quantum = PROC_QUANTUM;
 		proc->state = PROC_IN_EVENT;
-		list_remove(proc->events, proc->events->head);
 		regs->useresp += 4;
 		((u32 *)regs->useresp)[1] = (u32)proc_event->data; // Huh
+		list_remove(proc->events, proc->events->head);
 	}
 
 	/* printf("{%d}", ((struct proc *)current->data)->pid); */
@@ -158,6 +159,12 @@ void proc_exit(struct proc *proc, int status)
 	hlt();
 }
 
+// TODO: More instant yield
+void proc_yield()
+{
+	quantum = 0;
+}
+
 struct proc *proc_make()
 {
 	struct proc *proc = malloc(sizeof(*proc));
-- 
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