~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 */

#include "mysys/mysys_priv.h"

#include <stdarg.h>

#include <string.h>

#include <stdlib.h>

/*

  Malloc many pointers at the same time

  Only ptr1 can be free'd, and doing this will free all

  the memory allocated. ptr2, etc all point inside big allocated

  memory area.

  SYNOPSIS

    my_multi_malloc()

      myFlags              Flags

	ptr1, length1      Multiple arguments terminated by null ptr

	ptr2, length2      ...

        ...

	NULL

*/

void* my_multi_malloc(myf myFlags, ...)

{

  va_list args;

  char **ptr,*start,*res;

  size_t tot_length,length;

  va_start(args,myFlags);

  tot_length=0;

  while ((ptr=va_arg(args, char **)))

  {

    length=va_arg(args,uint);

    tot_length+=ALIGN_SIZE(length);

  }

  va_end(args);

  if (!(start=(char *) malloc(tot_length)))

    return(0); /* purecov: inspected */

  if (myFlags & MY_ZEROFILL)

    memset(start, 0, tot_length);

  va_start(args,myFlags);

  res=start;

  while ((ptr=va_arg(args, char **)))

  {

    *ptr=res;

    length=va_arg(args,uint);

    res+=ALIGN_SIZE(length);

  }

  va_end(args);

  return((void*) start);

}