Major refactor of codebase

include/scheduler/sched.h

@@ -0,0 +1,33 @@
+#include <stdint.h>
+
+#pragma once
+
+typedef enum proc_state {
+    RUNNING = 3,
+    READY = 2,
+    SLEEPING = 1,
+    UNUSED = 0
+}proc_state;
+
+struct context {
+    uint64_t r15, r14, r13, r12, rbp, rbx, rip;
+};
+
+struct thread {
+    struct thread *next;
+    struct thread *prev;
+    uint64_t *mem;
+    uint64_t *kstack;
+    proc_state state;
+    uint16_t pid;
+    struct context *context;
+};
+
+void scheduler_init();
+[[noreturn]] void sched();
+void yield();
+
+#define PROC_MAX    512 // Max number of processes
+
+#define INITIAL_STACK_SIZE  0x10000
+