mbed OS5

Fork of UIPEthernet by Zoltan Hudak

UIPClient.h

Committer:
hudakz
Date:
2014-12-20
Revision:
2:049ce85163c5
Parent:
0:5350a66d5279
Child:
4:d774541a34da

File content as of revision 2:049ce85163c5:

/*
 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 "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_CLOSE    1
    #define UIP_CLIENT_CLOSED   2
    #define UIP_CLIENT_RESTART  4

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;
} 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);
private:
    UIPClient(struct uip_conn* _conn);
    UIPClient(uip_userdata_closed_t* closed_conn);

    struct uip_conn*                _uip_conn;

    uip_userdata_t*                 data;

    static uip_userdata_closed_t*   closed_conns[UIP_CONNS];

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

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

    friend class                    UIPEthernetClass;
    friend class                    UIPServer;
    static void                     uip_callback(uip_tcp_appstate_t* s);
};
#endif