exit() now switches to the first running process

i used a linked list because it's the simplest way to implement this

1 files changed, 12 insertions, 1 deletions

diff --git a/src/kernel/proc.h b/src/kernel/proc.h
index 71880e6..6d1ed8c 100644
--- a/src/kernel/proc.h
+++ b/src/kernel/proc.h
@@ -1,14 +1,25 @@
 #pragma once
 #include <kernel/arch/generic.h>
 
+enum process_state {
+	PS_RUNNING,
+	PS_DEAD,
+};
+
 struct process {
 	void *stack_top;
 	struct pagedir *pages;
 	struct registers regs;
+	enum process_state state;
+
+	struct process *next;
 };
 
+extern struct process *process_first;
 extern struct process *process_current;
 
 struct process *process_new();
-struct process *process_clone(const struct process *orig);
+struct process *process_clone(struct process *orig);
 _Noreturn void process_switch(struct process *proc);
+
+struct process *process_find(enum process_state);