File content as of revision 9:e55652bed36c:

/*
 UIPClient.h - Arduino implementation of a UIP wrapper class.
 Copyright (c) 2013 Norbert Truchsess <norbert.truchsess@t-online.de>
 All rights reserved.

 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
#ifndef UIPCLIENT_H
#define UIPCLIENT_H

#include "ethernet_comp.h"
//#include "Print.h"

#include "Client.h"
#include "utility/mempool.h"

extern "C"
{
#include "utility/uip.h"
}
#define UIP_SOCKET_DATALEN  UIP_TCP_MSS
//#define UIP_SOCKET_NUMPACKETS UIP_RECEIVE_WINDOW/UIP_TCP_MSS+1

#ifndef UIP_SOCKET_NUMPACKETS
#define UIP_SOCKET_NUMPACKETS   5
#endif
#define UIP_CLIENT_CONNECTED    0x10
#define UIP_CLIENT_CLOSE        0x20
#define UIP_CLIENT_REMOTECLOSED 0x40
#define UIP_CLIENT_RESTART      0x80
#define UIP_CLIENT_STATEFLAGS   (UIP_CLIENT_CONNECTED | UIP_CLIENT_CLOSE | UIP_CLIENT_REMOTECLOSED | UIP_CLIENT_RESTART)
#define UIP_CLIENT_SOCKETS      ~UIP_CLIENT_STATEFLAGS

typedef uint8_t uip_socket_ptr;

typedef struct
{
    uint8_t     state;
    memhandle   packets_in[UIP_SOCKET_NUMPACKETS];
    uint16_t    lport;  /**< The local TCP port, in network byte order. */
} uip_userdata_closed_t;

typedef struct
{
    uint8_t         state;
    memhandle       packets_in[UIP_SOCKET_NUMPACKETS];
    memhandle       packets_out[UIP_SOCKET_NUMPACKETS];
    memaddress      out_pos;
#if UIP_CLIENT_TIMER >= 0
    unsigned long   timer;
#endif
} uip_userdata_t;

class UIPClient :
    public Client
{
public:
    UIPClient(void);
    int                     connect(IPAddress ip, uint16_t port);
    int                     connect(const char* host, uint16_t port);
    int                     read(uint8_t* buf, size_t size);
    void                    stop(void);
    uint8_t                 connected(void);
    operator                bool(void);
    virtual bool operator   ==(const EthernetClient& );
    virtual bool operator   !=(const EthernetClient& rhs)   { return !this->operator ==(rhs); };

    size_t                  write(uint8_t);
    size_t                  write(const uint8_t* buf, size_t size);
    int                     available(void);
    int                     read(void);
    int                     peek(void);
    void                    flush(void);

//  using Print::write;

private:
    UIPClient(struct uip_conn* _conn);
    UIPClient(uip_userdata_t* conn_data);

    uip_userdata_t*         data;

    static uip_userdata_t   all_data[UIP_CONNS];
    static uip_userdata_t*  _allocateData(void);

    static size_t           _write(uip_userdata_t* , const uint8_t* buf, size_t size);
    static int              _available(uip_userdata_t* );

    static uint8_t          _currentBlock(memhandle* blocks);
    static void             _eatBlock(memhandle* blocks);
    static void             _flushBlocks(memhandle* blocks);

#ifdef UIPETHERNET_DEBUG_CLIENT
    static void             _dumpAllData(void);
#endif
    friend class            UIPEthernet;
    friend class            UIPServer;

    friend void             uipclient_appcall(void);
};
#endif