~drizzle-trunk/drizzle/development

/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-

 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:

 *

 *  Copyright (C) 2008 Sun Microsystems, Inc.

 *

 *  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; version 2 of the License.

 *

 *  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, write to the Free Software

 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 */

#ifndef _libdrizzle_net_serv_h_

#define _libdrizzle_net_serv_h_

#ifdef __cplusplus

extern "C" {

#endif

#include <stdint.h>

#include <stdbool.h>

#define net_new_transaction(net) ((net)->pkt_nr=0)

#include <libdrizzle/vio.h>

#define LIBDRIZZLE_ERRMSG_SIZE 512

#define LIBDRIZZLE_SQLSTATE_LENGTH 5

typedef struct st_net {

  Vio *vio;

  unsigned char *buff,*buff_end,*write_pos,*read_pos;

  int fd;					/* For Perl DBI/dbd */

  /*

    The following variable is set if we are doing several queries in one

    command ( as in LOAD TABLE ... FROM MASTER ),

    and do not want to confuse the client with OK at the wrong time

  */

  unsigned long remain_in_buf,length, buf_length, where_b;

  unsigned long max_packet,max_packet_size;

  unsigned int pkt_nr,compress_pkt_nr;

  unsigned int write_timeout;

  unsigned int read_timeout;

  unsigned int retry_count;

  int fcntl;

  unsigned int *return_status;

  unsigned char reading_or_writing;

  char save_char;

  bool compress;

  /*

    Pointer to query object in query cache, do not equal NULL (0) for

    queries in cache that have not stored its results yet

  */

  /*

    Unused, please remove with the next incompatible ABI change.

  */

  unsigned char *unused;

  unsigned int last_errno;

  unsigned char error; 

  /** Client library error message buffer. Actually belongs to struct MYSQL. */

  char last_error[LIBDRIZZLE_ERRMSG_SIZE];

  /** Client library sqlstate buffer. Set along with the error message. */

  char sqlstate[LIBDRIZZLE_SQLSTATE_LENGTH+1];

  void *extension;

} NET;

  bool my_net_init(NET *net, Vio* vio);

  void my_net_local_init(NET *net);

  void net_end(NET *net);

  void net_clear(NET *net, bool clear_buffer);

  bool net_realloc(NET *net, size_t length);

  bool net_flush(NET *net);

  bool my_net_write(NET *net,const unsigned char *packet, size_t len);

  bool net_write_command(NET *net,unsigned char command,

                         const unsigned char *header, size_t head_len,

                         const unsigned char *packet, size_t len);

  int32_t net_real_write(NET *net,const unsigned char *packet, size_t len);

  uint32_t my_net_read(NET *net);

  void net_close(NET *net);

  bool net_init_sock(NET * net, int sock, int flags);

  bool net_peer_addr(NET *net, char *buf, uint16_t *port, size_t buflen);

  void net_keepalive(NET *net, bool flag);

  int net_get_sd(NET *net);

  bool net_should_close(NET *net);

  bool net_more_data(NET *net);

  void my_net_set_write_timeout(NET *net, uint32_t timeout);

  void my_net_set_read_timeout(NET *net, uint32_t timeout);

  void net_clear_error(NET *net);

#ifdef __cplusplus

}

#endif

#endif