sysdeps/generic/memusage.h

   1 /* Copyright (C) 2000-2020 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18
  19 #include <limits.h>
  20 #include <atomic.h>
  21 #include <stdint.h>
  22
  23 #ifndef GETSP
  24 # warning "GETSP is not defined for this architecture."
  25 # define GETSP 0
  26 #endif
  27
  28 #ifndef GETTIME
  29 # define GETTIME(low,high)                                                 \
  30   {                                                                        \
  31     struct __timespec64 now;                                               \
  32     uint64_t usecs;                                                        \
  33     __clock_gettime64 (CLOCK_REALTIME, &now);                              \
  34     usecs = (uint64_t)now.tv_nsec / 1000 + (uint64_t)now.tv_sec * 1000000; \
  35     low = usecs & 0xffffffff;                                              \
  36     high = usecs >> 32;                                                    \
  37   }
  38 #endif
  39
  40 #if LONG_BIT == 32
  41 # define memusage_cntr_t uatomic32_t
  42 #else
  43 # define memusage_cntr_t uatomic64_t
  44 #endif
  45 #ifndef memusage_size_t
  46 # if LONG_BIT == 32
  47 #  define memusage_size_t uatomic32_t
  48 # else
  49 #  define memusage_size_t uatomic64_t
  50 # endif
  51 #endif