glibc/sysdeps/generic/memusage.h

/* Copyright (C) 2000-2017 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C 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, or (at your option) any later version.

   The GNU C 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 the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */


#include <limits.h>
#include <atomic.h>
#include <stdint.h>

#ifndef GETSP
# warning "GETSP is not defined for this architecture."
# define GETSP 0
#endif

#ifndef GETTIME
# define GETTIME(low,high) \
  {									      \
    struct timeval tval;						      \
    uint64_t usecs;							      \
    gettimeofday (&tval, NULL);						      \
    usecs = (uint64_t) tval.tv_usec + (uint64_t) tval.tv_usec * 1000000;      \
    low = usecs & 0xffffffff;						      \
    high = usecs >> 32;							      \
  }
#endif

#if LONG_BIT == 32
# define memusage_cntr_t uatomic32_t
#else
# define memusage_cntr_t uatomic64_t
#endif
#ifndef memusage_size_t
# if LONG_BIT == 32
#  define memusage_size_t uatomic32_t
# else
#  define memusage_size_t uatomic64_t
# endif
#endif