magenta/sched/thread.c

#include <socks/sched.h>
#include <socks/object.h>
#include <socks/cpu.h>

static struct object_type thread_type = {
	.ob_name = "thread",
	.ob_size = sizeof(struct thread),
};

kern_status_t thread_object_type_init(void)
{
	return object_type_register(&thread_type);
}

struct thread *thread_alloc(void)
{
	struct object *thread_obj = object_create(&thread_type);
	if (!thread_obj) {
		return NULL;
	}

	struct thread *t = object_data(thread_obj);
	memset(t, 0x00, sizeof *t);
	return t;
}

void thread_free(struct thread *thr)
{

}

struct thread *current_thread(void)
{
	struct cpu_data *cpu = get_this_cpu();
	if (!cpu) {
		return NULL;
	}

	struct thread *out = cpu->c_current_thread;
	put_cpu(cpu);
	return out;
}

bool need_resched(void)
{
	return (current_thread()->tr_flags & THREAD_F_NEED_RESCHED) != 0;
}