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/* Copyright (C) 2009, 2011 Free Software Foundation, Inc.

   Contributed by Richard Henderson <rth@redhat.com>.

   This file is part of the GNU Transactional Memory Library (libitm).

   Libitm 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 3 of the License, or

   (at your option) any later version.

   Libitm 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.

   Under Section 7 of GPL version 3, you are granted additional

   permissions described in the GCC Runtime Library Exception, version

   3.1, as published by the Free Software Foundation.

   You should have received a copy of the GNU General Public License and

   a copy of the GCC Runtime Library Exception along with this program;

   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

   <http://www.gnu.org/licenses/>.  */

#include "libitm_i.h"

#include <stdarg.h>

#include <stdio.h>

namespace GTM HIDDEN {

static void

gtm_verror (const char *fmt, va_list list)

{

  fputs ("\nlibitm: ", stderr);

  vfprintf (stderr, fmt, list);

  fputc ('\n', stderr);

}

void

GTM_error (const char *fmt, ...)

{

  va_list list;

  va_start (list, fmt);

  gtm_verror (fmt, list);

  va_end (list);

}

void

GTM_fatal (const char *fmt, ...)

{

  va_list list;

  va_start (list, fmt);

  gtm_verror (fmt, list);

  va_end (list);

  exit (EXIT_FAILURE);

}

void *

xmalloc (size_t size, bool separate_cl)

{

  // TODO Use posix_memalign if separate_cl is true, or some other allocation

  // method that will avoid sharing cache lines with data used by other

  // threads.

  void *r = malloc (size);

  if (r == 0)

    GTM_fatal ("Out of memory allocating %lu bytes", (unsigned long) size);

  return r;

}

void *

xcalloc (size_t size, bool separate_cl)

{

  // TODO Use posix_memalign if separate_cl is true, or some other allocation

  // method that will avoid sharing cache lines with data used by other

  // threads.

  void *r = calloc (1, size);

  if (r == 0)

    GTM_fatal ("Out of memory allocating %lu bytes", (unsigned long) size);

  return r;

}

void *

xrealloc (void *old, size_t size, bool separate_cl)

{

  // TODO Use posix_memalign if separate_cl is true, or some other allocation

  // method that will avoid sharing cache lines with data used by other

  // threads.

  void *r = realloc (old, size);

  if (r == 0)

    GTM_fatal ("Out of memory allocating %lu bytes", (unsigned long) size);

  return r;

}

} // namespace GTM