sock_types.h

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/*
 * Copyright (C) 2016 Freie Universität Berlin
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#pragma once

 
#include "net/af.h"
#include "lwip/api.h"
#ifdef SOCK_HAS_ASYNC
#include "net/sock/async/types.h"
#endif
 
#ifdef __cplusplus
extern "C" {
#endif

typedef struct lwip_sock_base lwip_sock_base_t;
 
#ifdef SOCK_HAS_ASYNC
typedef void (*lwip_sock_cb_t)(lwip_sock_base_t *sock,
                               sock_async_flags_t flags,
                               void *arg);
#endif  /* SOCK_HAS_ASYNC */

struct lwip_sock_base {
    struct netconn *conn;           
#ifdef SOCK_HAS_ASYNC
    union {
        lwip_sock_cb_t gen;         
#ifdef MODULE_SOCK_IP
        sock_ip_cb_t ip;            
#endif
#ifdef MODULE_SOCK_TCP
        sock_tcp_cb_t tcp;          
        sock_tcp_queue_cb_t tcp_queue;
#endif
#ifdef MODULE_SOCK_UDP
        sock_udp_cb_t udp;          
#endif
    } async_cb;
    void *async_cb_arg;             
#ifdef SOCK_HAS_ASYNC_CTX
    sock_async_ctx_t async_ctx;     
#endif  /* SOCK_HAS_ASYNC_CTX */
#endif  /* SOCK_HAS_ASYNC */
};

struct sock_ip {
    lwip_sock_base_t base;          
};

struct sock_tcp {
    lwip_sock_base_t base;          
    struct sock_tcp_queue *queue;   
    mutex_t mutex;                  
    struct pbuf *last_buf;          
    ssize_t last_offset;            
};

struct sock_tcp_queue {
    lwip_sock_base_t base;          
    struct sock_tcp *array;         
    mutex_t mutex;                  
    unsigned short len;             
    unsigned short used;            
};

struct sock_udp {
    lwip_sock_base_t base;          
};
 
#ifdef __cplusplus
}
#endif