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Sourcecode: beryl-core version File versions

privates.c

/*
 * Copyright © 2005 Novell, 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; either version 2
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * Author: David Reveman <davidr@novell.com>
 */

#include <stdlib.h>

#include <beryl.h>
#include <beryl-private.h>

int
allocatePrivateIndex(int *len,
                               char **indices,
                               ReallocPrivatesProc reallocProc, void *closure)
{
      char *newIndices;
      int i;

      for (i = 0; i < *len; i++)
      {
            if (!(*indices)[i])
            {
                  (*indices)[i] = 1;
                  return i;
            }
      }

      newIndices = (char *)realloc(*indices, (*len + 1) * sizeof(char));
      if (!newIndices)
            return -1;

      newIndices[*len] = 1;
      *indices = newIndices;

      if (!(*reallocProc) (*len + 1, closure))
            return -1;

      return (*len)++;
}

void freePrivateIndex(int len, char *indices, int index)
{
      if (index < len)
            indices[index] = 0;
}

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