bcs_tcp.h

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/*
* Copyright (c) 2008-2011 Marius Zwicker / Elefant Racing Bayreuth. 
* All rights reserved.
*
* @ERB_OPEN_LICENSE_HEADER_START@
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* 
*     http://www.apache.org/licenses/LICENSE-2.0
* 
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*      http://www.elefantracing.de
*
* @ERB_OPEN_LICENSE_HEADER_END@
*/

#ifndef BCS_TCP_H_
#define BCS_TCP_H_

#ifdef __cplusplus
extern "C" {
#endif

#include "bcs_errorcodes.h"
#include <sys/socket.h>

typedef enum {
       BCS_TCP_MS3_CAN, 
       BCS_TCP_BOARD_CAN, 
       BCS_TCP_PIN_IO, 
       BCS_TCP_DISPLAYMSG, 
       BCS_TCP_TELESEED 
} BCS_TCP_ids;

typedef struct {
       Int32 m_size, m_pos;
       Int16 m_id;
       char * m_data;
} BCS_TCP_package;

Int32 BCS_TCP_create(BCS_TCP_package * p);

Int32 BCS_TCP_delete(BCS_TCP_package * p);

void BCS_TCP_writeInt(BCS_TCP_package * p, Int32 i);

void BCS_TCP_writeShort(BCS_TCP_package * p, Int16 i);

void BCS_TCP_writeChar(BCS_TCP_package * p, char c);

Int16 BCS_TCP_readShort(BCS_TCP_package * p);

Int32 BCS_TCP_readInt(BCS_TCP_package * p);

char BCS_TCP_readChar(BCS_TCP_package * p);

void BCS_TCP_setID(BCS_TCP_package * p, BCS_TCP_ids id);

BCS_TCP_ids BCS_TCP_getID(BCS_TCP_package * p);

Int32 BCS_TCP_getSize(BCS_TCP_package * p);

typedef struct {
       Int32 receive_fd; // listen on receive_fd
       Int32 send_fd; // new connection at send_fd
       struct sockaddr_storage client_addr;
} BCS_TCP_connection;

Int32 BCS_TCP_waitForConnection(const char * port, BCS_TCP_connection * c);

Int32 BCS_TCP_send(BCS_TCP_connection * c, BCS_TCP_package * p);

Int32 BCS_TCP_receive( BCS_TCP_connection * c, BCS_TCP_package * p );

Int32 BCS_TCP_closeConnection( BCS_TCP_connection * c);

#ifdef __cplusplus
}
#endif

#endif /* BCS_TCP_H_ */