enchufe.h

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/* lib/enchufe.h
 *
 * ¡Esta es la librería de Enchufe!
 *
 */
#ifndef ENCHUFE_H_
#define ENCHUFE_H_
 
#ifdef __cplusplus
extern "C" {
#endif
 
/* ----- Includes ----- */
 
#include <netinet/in.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include "lib.h"
#include "uuid.h"
 
/* ----- Types ----- */

typedef int FD;

typedef uint16_t Port;

typedef union {
    Byte bytes[4]; 
    uint32_t ip;  
} IPv4;

typedef struct {
    FD fd;                      
    struct sockaddr_in addr;    
    socklen_t addrlen;           
} Enchufe;

typedef struct {
    struct sockaddr_in addr;    
    socklen_t addrlen;           
} Receptaculo;

typedef struct {
    enum Tag {
        ACK,
        REG,
        LIST,
        GET,
        PUT,
        WRITE,
        READ,
    } tag ; 
    union {
        struct {
            IPv4 address;    
            Port port;      
        } reg;               
        struct {
            SafeStr fname;  
        } get;               
        struct {
            size_t fsize;  
            SafeStr fname;  
        } put;               
        struct {
            size_t nbytes;    
        } write;            
        struct {
            UUID cid;        
        } read;             
    } as ;  
} Command;
 
/* ----- Functions ----- */

Buffer IPv4_serialize(IPv4 ip);

IPv4 IPv4_deserialize(Buffer buf);

FD nuevo(void);

Receptaculo receptaculo(IPv4 ip, Port port);

inline Enchufe aplasta(FD fd, Receptaculo rec) {
    return (Enchufe){
        .fd = fd,
        .addr = rec.addr,
        .addrlen = rec.addrlen,
    };
}

Enchufe enchufa(IPv4 ip, Port port);

void conecta(Enchufe enchufe);

void amarra(Enchufe enchufe);

void escucha(Enchufe enchufe, size_t len);

Enchufe acepta(Enchufe enchufe);

void zumba(Enchufe enchufe, Buffer in_buf);

size_t recibe(Enchufe enchufe, Buffer out_buf);

void desenchufa(Enchufe enchufe);

Buffer Port_serialize(Port port);

Port Port_deserialize(Buffer buf);

IPv4 parse_address(Str str);

Buffer Command_serialize(Command command);

Command Command_deserialize(Buffer buf);

Buffer Tag_serialize(enum Tag tag);

enum Tag Tag_deserialize(Buffer buf);
 
 
 
#ifdef __cplusplus
}
#endif
 
#endif // ENCHUFE_H_ header