src/config.h

   1 #ifndef __CONFIG_H
   2 #define __CONFIG_H
   3
   4 #ifdef __APPLE__
   5 #include <AvailabilityMacros.h>
   6 #endif
   7
   8 /* Define redis_fstat to fstat or fstat64() */
   9 #if defined(__APPLE__) && !defined(MAC_OS_X_VERSION_10_6)
  10 #define redis_fstat fstat64
  11 #define redis_stat stat64
  12 #else
  13 #define redis_fstat fstat
  14 #define redis_stat stat
  15 #endif
  16
  17 /* Test for proc filesystem */
  18 #ifdef __linux__
  19 #define HAVE_PROCFS 1
  20 #endif
  21
  22 /* Test for task_info() */
  23 #if defined(__APPLE__)
  24 #define HAVE_TASKINFO 1
  25 #endif
  26
  27 /* Test for backtrace() */
  28 #if defined(__APPLE__) || defined(__linux__) || defined(__sun)
  29 #define HAVE_BACKTRACE 1
  30 #endif
  31
  32 /* Test for polling API */
  33 #ifdef __linux__
  34 #define HAVE_EPOLL 1
  35 #endif
  36
  37 #if (defined(__APPLE__) && defined(MAC_OS_X_VERSION_10_6)) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined (__NetBSD__)
  38 #define HAVE_KQUEUE 1
  39 #endif
  40
  41 /* Define aof_fsync to fdatasync() in Linux and fsync() for all the rest */
  42 #ifdef __linux__
  43 #define aof_fsync fdatasync
  44 #else
  45 #define aof_fsync fsync
  46 #endif
  47
  48 /* Byte ordering detection */
  49 #include <sys/types.h> /* This will likely define BYTE_ORDER */
  50
  51 #ifndef BYTE_ORDER
  52 #if (BSD >= 199103)
  53 # include <machine/endian.h>
  54 #else
  55 #if defined(linux) || defined(__linux__)
  56 # include <endian.h>
  57 #else
  58 #define LITTLE_ENDIAN   1234    /* least-significant byte first (vax, pc) */
  59 #define BIG_ENDIAN      4321    /* most-significant byte first (IBM, net) */
  60 #define PDP_ENDIAN      3412    /* LSB first in word, MSW first in long (pdp)*/
  61
  62 #if defined(__i386__) || defined(__x86_64__) || defined(__amd64__) || \
  63    defined(vax) || defined(ns32000) || defined(sun386) || \
  64    defined(MIPSEL) || defined(_MIPSEL) || defined(BIT_ZERO_ON_RIGHT) || \
  65    defined(__alpha__) || defined(__alpha)
  66 #define BYTE_ORDER    LITTLE_ENDIAN
  67 #endif
  68
  69 #if defined(sel) || defined(pyr) || defined(mc68000) || defined(sparc) || \
  70     defined(is68k) || defined(tahoe) || defined(ibm032) || defined(ibm370) || \
  71     defined(MIPSEB) || defined(_MIPSEB) || defined(_IBMR2) || defined(DGUX) ||\
  72     defined(apollo) || defined(__convex__) || defined(_CRAY) || \
  73     defined(__hppa) || defined(__hp9000) || \
  74     defined(__hp9000s300) || defined(__hp9000s700) || \
  75     defined (BIT_ZERO_ON_LEFT) || defined(m68k) || defined(__sparc)
  76 #define BYTE_ORDER      BIG_ENDIAN
  77 #endif
  78 #endif /* linux */
  79 #endif /* BSD */
  80 #endif /* BYTE_ORDER */
  81
  82 #if defined(__BYTE_ORDER) && !defined(BYTE_ORDER)
  83 #if (__BYTE_ORDER == __LITTLE_ENDIAN)
  84 #define BYTE_ORDER LITTLE_ENDIAN
  85 #else
  86 #define BYTE_ORDER BIG_ENDIAN
  87 #endif
  88 #endif
  89
  90 #if !defined(BYTE_ORDER) || \
  91     (BYTE_ORDER != BIG_ENDIAN && BYTE_ORDER != LITTLE_ENDIAN)
  92         /* you must determine what the correct bit order is for
  93          * your compiler - the next line is an intentional error
  94          * which will force your compiles to bomb until you fix
  95          * the above macros.
  96          */
  97 #error "Undefined or invalid BYTE_ORDER"
  98 #endif
  99
 100 #if (__i386 || __amd64) && __GNUC__
 101 #define GNUC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
 102 #if GNUC_VERSION >= 40100
 103 #define HAVE_ATOMIC
 104 #endif
 105 #endif
 106
 107
 108 #endif