#include <stdint.h>

#include "../event.h"

#define EOS_SOCK_MTYPE_PKT          0
#define EOS_SOCK_MTYPE_OPEN_DGRAM   1
#define EOS_SOCK_MTYPE_CLOSE        127

#define EOS_SOCK_MAX_SOCK           2

#define EOS_SOCK_SIZE_UDP_HDR       8

#define EOS_IPv4_ADDR_SIZE          4

#define EOS_SOCK_ERR_CLOSED         -1021

typedef struct EOSNetAddr {
    unsigned char host[EOS_IPv4_ADDR_SIZE];
    uint16_t port;
} EOSNetAddr;

void eos_sock_init(void);
void eos_sock_set_handler(unsigned char sock, eos_evt_handler_t handler);
eos_evt_handler_t eos_sock_get_handler(unsigned char sock);

int eos_sock_open_udp(eos_evt_handler_t handler, EOSMessage *msg);
void eos_sock_close(unsigned char sock, EOSMessage *msg);

int eos_sock_sendto(unsigned char sock, EOSNetAddr *addr, EOSMessage *msg, uint16_t pkt_len);
int eos_sock_sendto_async(unsigned char sock, EOSNetAddr *addr, EOSMessage *msg, uint16_t pkt_len, int more);
int eos_sock_recvfrom(EOSMessage *msg, uint16_t len, EOSNetAddr *addr, unsigned char *pkt, size_t pkt_size);

unsigned char *eos_sock_msg2pkt(EOSMessage *msg, uint16_t *len, uint16_t *pkt_size);
void eos_sock_pkt2msg(EOSMessage *msg, unsigned char *pkt, uint16_t pkt_size);