src/config.h

   1 #ifndef __CONFIG_H
   2 #define __CONFIG_H
   3
   4 #ifdef __APPLE__
   5 #include <AvailabilityMacros.h>
   6 #endif
   7
   8 /* Use tcmalloc's malloc_size() when available.
   9  * When tcmalloc is used, native OSX malloc_size() may never be used because
  10  * this expects a different allocation scheme. Therefore, *exclusively* use
  11  * either tcmalloc or OSX's malloc_size()! */
  12 #if defined(USE_TCMALLOC)
  13 #include <google/tcmalloc.h>
  14 #if TC_VERSION_MAJOR >= 1 && TC_VERSION_MINOR >= 6
  15 #define HAVE_MALLOC_SIZE 1
  16 #define redis_malloc_size(p) tc_malloc_size(p)
  17 #endif
  18 #elif defined(__APPLE__)
  19 #include <malloc/malloc.h>
  20 #define HAVE_MALLOC_SIZE 1
  21 #define redis_malloc_size(p) malloc_size(p)
  22 #endif
  23
  24 /* Tefine redis_fstat to fstat or fstat64() */
  25 #if defined(__APPLE__) && !defined(MAC_OS_X_VERSION_10_6)
  26 #define redis_fstat fstat64
  27 #define redis_stat stat64
  28 #else
  29 #define redis_fstat fstat
  30 #define redis_stat stat
  31 #endif
  32
  33 /* Test for proc filesystem */
  34 #ifdef __linux__
  35 #define HAVE_PROCFS 1
  36 #endif
  37
  38 /* Test for task_info() */
  39 #if defined(__APPLE__)
  40 #define HAVE_TASKINFO 1
  41 #endif
  42
  43 /* Test for backtrace() */
  44 #if defined(__APPLE__) || defined(__linux__)
  45 #define HAVE_BACKTRACE 1
  46 #endif
  47
  48 /* Test for polling API */
  49 #ifdef __linux__
  50 #define HAVE_EPOLL 1
  51 #endif
  52
  53 #if (defined(__APPLE__) && defined(MAC_OS_X_VERSION_10_6)) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined (__NetBSD__)
  54 #define HAVE_KQUEUE 1
  55 #endif
  56
  57 /* Define aof_fsync to fdatasync() in Linux and fsync() for all the rest */
  58 #ifdef __linux__
  59 #define aof_fsync fdatasync
  60 #else
  61 #define aof_fsync fsync
  62 #endif
  63
  64 /* Byte ordering detection */
  65 #include <sys/types.h> /* This will likely define BYTE_ORDER */
  66
  67 #ifndef BYTE_ORDER
  68 #if (BSD >= 199103)
  69 # include <machine/endian.h>
  70 #else
  71 #if defined(linux) || defined(__linux__)
  72 # include <endian.h>
  73 #else
  74 #define LITTLE_ENDIAN   1234    /* least-significant byte first (vax, pc) */
  75 #define BIG_ENDIAN      4321    /* most-significant byte first (IBM, net) */
  76 #define PDP_ENDIAN      3412    /* LSB first in word, MSW first in long (pdp)*/
  77
  78 #if defined(vax) || defined(ns32000) || defined(sun386) || defined(__i386__) || \
  79     defined(MIPSEL) || defined(_MIPSEL) || defined(BIT_ZERO_ON_RIGHT) || \
  80     defined(__alpha__) || defined(__alpha)
  81 #define BYTE_ORDER      LITTLE_ENDIAN
  82 #endif
  83
  84 #if defined(sel) || defined(pyr) || defined(mc68000) || defined(sparc) || \
  85     defined(is68k) || defined(tahoe) || defined(ibm032) || defined(ibm370) || \
  86     defined(MIPSEB) || defined(_MIPSEB) || defined(_IBMR2) || defined(DGUX) ||\
  87     defined(apollo) || defined(__convex__) || defined(_CRAY) || \
  88     defined(__hppa) || defined(__hp9000) || \
  89     defined(__hp9000s300) || defined(__hp9000s700) || \
  90     defined (BIT_ZERO_ON_LEFT) || defined(m68k) || defined(__sparc)
  91 #define BYTE_ORDER      BIG_ENDIAN
  92 #endif
  93 #endif /* linux */
  94 #endif /* BSD */
  95 #endif /* BYTE_ORDER */
  96
  97 #if defined(__BYTE_ORDER) && !defined(BYTE_ORDER)
  98 #if (__BYTE_ORDER == __LITTLE_ENDIAN)
  99 #define BYTE_ORDER LITTLE_ENDIAN
 100 #else
 101 #define BYTE_ORDER BIG_ENDIAN
 102 #endif
 103 #endif
 104
 105 #if !defined(BYTE_ORDER) || \
 106     (BYTE_ORDER != BIG_ENDIAN && BYTE_ORDER != LITTLE_ENDIAN)
 107         /* you must determine what the correct bit order is for
 108          * your compiler - the next line is an intentional error
 109          * which will force your compiles to bomb until you fix
 110          * the above macros.
 111          */
 112 #error "Undefined or invalid BYTE_ORDER"
 113 #endif
 114
 115 #endif