/*
 * The Spar Library - modular math parser
 * Copyright (C) 2000,2001 Davide Angelocola <davide178@inwind.it>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA  02111-1307, USA.
 *
 */
#include <stdlib.h>
#include <spar/sl_util.h>
#include <spar/sl_io.h>
#include <spar/sl_conf.h>
#include <spar/sl_error.h>

#ifdef DEBUG
static sl_size __allocated = 0;
static sl_size __de_allocated = 0;
static sl_size __free_counter = 0;
static sl_size __malloc_counter = 0;
#endif

#define BYTES_TO_KB	1024

void *
sl_malloc (sl_size bytes)
{
  void *m = malloc (bytes);

  if (m == NULL)
    sl_error_throw (SL_ERROR_CLASS_FATAL, SL_ERROR_NO_MEM, "(%uK).",
		    bytes / BYTES_TO_KB);

#ifdef DEBUG
  __allocated += bytes;
  __malloc_counter++;
#endif

  return m;
}

void *
sl_realloc (void *m, sl_size bytes)
{
  sl_assert (m != NULL);
  sl_assert (bytes > 0);

  {
    void *new = realloc (m, bytes);

    if (m == NULL)
      sl_error_throw (SL_ERROR_CLASS_FATAL, SL_ERROR_NO_MEM, "(%uK).",
		      bytes / BYTES_TO_KB);

#ifdef DEBUG
    __allocated += bytes;
    __malloc_counter++;
#endif

    return new;
  }
}


void *
sl_calloc (sl_size nmemb, sl_size bytes)
{
  void *m = calloc (nmemb, bytes);

  if (m == NULL)
    sl_error_throw (SL_ERROR_CLASS_FATAL, SL_ERROR_NO_MEM, "(%uK).",
		    (nmemb * bytes) / BYTES_TO_KB);

#ifdef DEBUG
  __allocated += nmemb * bytes;
  __malloc_counter++;
#endif

  return m;
}


void
sl_free (void *m, sl_size bytes)
{
#ifdef DEBUG
  __de_allocated += bytes;
  __free_counter++;
#endif

  if (m == NULL)
    sl_error_throw (SL_ERROR_CLASS_FATAL, SL_ERROR_FREE_TWICE,
		    "this memory localtion points to NULL. Are you sure that this is what you want?");

  free (m);
}

void
sl_memory_stats (void)
{
#ifdef DEBUG

  sl_writeln ("Memory Stats");
  sl_writeln ("allocated   : %d Kb (%d calls).", __allocated / BYTES_TO_KB,
	      __malloc_counter);

  sl_writeln ("deallocated : %d Kb (%d calls).", __de_allocated / BYTES_TO_KB,
	      __free_counter);
#endif
}