#pragma once

#include <stdint.h>

#include "sandbox_request.h"

/* Returns pointer back if successful, null otherwise */
typedef struct sandbox_request *(*global_request_scheduler_add_fn_t)(void *);
typedef int (*global_request_scheduler_remove_fn_t)(struct sandbox_request **);
typedef int (*global_request_scheduler_remove_if_earlier_fn_t)(struct sandbox_request **, uint64_t);
typedef uint64_t (*global_request_scheduler_peek_fn_t)(void);

struct global_request_scheduler_config {
	global_request_scheduler_add_fn_t               add_fn;
	global_request_scheduler_remove_fn_t            remove_fn;
	global_request_scheduler_remove_if_earlier_fn_t remove_if_earlier_fn;
	global_request_scheduler_peek_fn_t              peek_fn;
};


void                    global_request_scheduler_initialize(struct global_request_scheduler_config *config);
struct sandbox_request *global_request_scheduler_add(struct sandbox_request *);
int                     global_request_scheduler_remove(struct sandbox_request **);
int                     global_request_scheduler_remove_if_earlier(struct sandbox_request **, uint64_t targed_deadline);
uint64_t                global_request_scheduler_peek();