~drizzle-trunk/drizzle/development

/* Copyright (C) 2000 MySQL AB

   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

/* readline for batch mode */

#include <drizzled/global.h>

#include <mysys/my_sys.h>

#include "client/linebuffer.h"

#include <vector>

using namespace std;

LineBuffer::LineBuffer(uint32_t my_max_size,FILE *my_file)

  :

    file(my_file),

    line(),

    max_size(my_max_size),

    eof(false)

{

  line.reserve(max_size);

}

void LineBuffer::addString(const string &str)

{

  buffer << str << endl;

}

char *LineBuffer::readline()

{

  uint32_t read_count;

  if (file && !eof)

  {

    if ((read_count= my_read(fileno(file),

                             (unsigned char *) (&line[0]),

                             max_size-1,MYF(MY_WME))))

    {

      line[read_count+1]= '\0';

      buffer << &line[0];

    }

    else

      eof= true;

  }

  buffer.getline(&line[0],max_size);

  if (buffer.eof())

    return 0;

  else

    return &line[0];

}