include/beedb.h

   1 /*
   2   Copyright 2008 Kristian Nielsen
   3
   4   This file is part of BeeDB.
   5
   6   Foobar is free software: you can redistribute it and/or modify
   7   it under the terms of the GNU General Public License as published by
   8   the Free Software Foundation, either version 2 of the License, or
   9   (at your option) any later version.
  10
  11   Foobar is distributed in the hope that it will be useful,
  12   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14   GNU General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 /*
  21   This header contains general definitions used throughout all of the BeeDB
  22   source code, and should be included as the first non-system header in all
  23   BeeDB C++ source code.
  24
  25   Note that because of this, this header should be kept fairly slim and should
  26   _not_ contain any stuff not of general interest to BeeDB code, ie. do not
  27   include definitions that are used only in one or a few modules.
  28 */
  29
  30 /* We need UINT64_MAX and friends. */
  31 #ifndef __STDC_LIMIT_MACROS
  32 #define __STDC_LIMIT_MACROS
  33 #endif
  34 #include <stdint.h>
  35
  36 #include "port/beedb.h"
  37
  38
  39 typedef unsigned int uint;
  40
  41
  42 #ifdef __GNUC__
  43
  44 #define likely(x) __builtin_expect(!!(x), 1)
  45 #define unlikely(x) __builtin_expect(!!(x), 0)
  46
  47 #define NOINLINE __attribute__((noinline))
  48
  49 #else
  50
  51 #define likely(x) (x)
  52 #define unlikely(x) (x)
  53
  54 #define NOINLINE
  55 #endif
  56
  57 /*
  58   Preprocessor trick needed to convert number to string, eg. for putting
  59   __LINE__ into a string literal.
  60 */
  61 #define MACRO_NUMBER_TO_STRING2(n) #n
  62 #define MACRO_NUMBER_TO_STRING(n) MACRO_NUMBER_TO_STRING2(n)