#pragma once

#include <pthread.h>
#include <sys/epoll.h> /* for epoll_create1(), epoll_ctl(), struct epoll_event */
#include <stdatomic.h>
#include <stdbool.h>

#include "likely.h"
#include "types.h"

#define RUNTIME_EXPECTED_EXECUTION_US_MAX 3600000000
#define RUNTIME_HTTP_REQUEST_SIZE_MAX     100000000 /* 100 MB */
#define RUNTIME_HTTP_RESPONSE_SIZE_MAX    100000000 /* 100 MB */
#define RUNTIME_LOG_FILE                  "sledge.log"
#define RUNTIME_MAX_EPOLL_EVENTS          128
#define RUNTIME_MAX_SANDBOX_REQUEST_COUNT (1 << 19)
#define RUNTIME_MAX_WORKER_COUNT          32 /* Static buffer size for per-worker globals */
#define RUNTIME_READ_WRITE_VECTOR_LENGTH  16
#define RUNTIME_RELATIVE_DEADLINE_US_MAX  3600000000 /* One Hour. Fits in uint32_t */

enum RUNTIME_SIGALRM_HANDLER
{
	RUNTIME_SIGALRM_HANDLER_BROADCAST = 0,
	RUNTIME_SIGALRM_HANDLER_TRIAGED   = 1
};

extern bool                         runtime_preemption_enabled;
extern uint32_t                     runtime_processor_speed_MHz;
extern uint32_t                     runtime_quantum_us;
extern enum RUNTIME_SIGALRM_HANDLER runtime_sigalrm_handler;
extern pthread_t *                  runtime_worker_threads;
extern uint32_t                     runtime_worker_threads_count;
extern int *                        runtime_worker_threads_argument;
extern uint64_t *                   runtime_worker_threads_deadline;

extern void runtime_initialize(void);
extern void runtime_set_pthread_prio(pthread_t thread, unsigned int nice);
extern void runtime_set_resource_limits_to_max(void);

/* External Symbols */
extern void  alloc_linear_memory(void);
extern int   expand_memory(void);
INLINE char *get_function_from_table(uint32_t idx, uint32_t type_id);
INLINE char *get_memory_ptr_for_runtime(uint32_t offset, uint32_t bounds_check);
extern void  stub_init(int32_t offset);

static inline char *
runtime_print_sigalrm_handler(enum RUNTIME_SIGALRM_HANDLER variant)
{
	switch (variant) {
	case RUNTIME_SIGALRM_HANDLER_BROADCAST:
		return "BROADCAST";
	case RUNTIME_SIGALRM_HANDLER_TRIAGED:
		return "TRIAGED";
	}
}