kc/core/task.h


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#pragma once

#include <stdint.h>

enum kc_thread_status
{
	AVAILABLE,
	CREATED,
    READY,
    RUNNING,
    SLEEPING,
    BLOCKED,
	WAITING,
    TERMINATED
};

union kc_thread_result
{
	uint64_t scalar;
	void *pointer;
};

struct kc_thread
{
	void *kernel_stack_head;
	void *kernel_stack_pointer;
	uint64_t time_elapsed;
	union kc_thread_result result;
	enum kc_thread_status status;
	struct kc_thread *next;
	union
	{
		uint64_t sleep_expiration;
		struct kc_thread *wait_target;
	};
};

void task_init(void);

void kct_terminate(union kc_thread_result result);
union kc_thread_result kct_wait(struct kc_thread *target);