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(USE_JEMALLOC)
  19 #define JEMALLOC_MANGLE
  20 #include <jemalloc/jemalloc.h>
  21 #if JEMALLOC_VERSION_MAJOR >= 2 && JEMALLOC_VERSION_MINOR >= 1
  22 #define HAVE_MALLOC_SIZE 1
  23 #define redis_malloc_size(p) JEMALLOC_P(malloc_usable_size)(p)
  24 #endif
  25 #elif defined(__APPLE__)
  26 #include <malloc/malloc.h>
  27 #define HAVE_MALLOC_SIZE 1
  28 #define redis_malloc_size(p) malloc_size(p)
  29 #endif
  30
  31 /* Tefine redis_fstat to fstat or fstat64() */
  32 #if defined(__APPLE__) && !defined(MAC_OS_X_VERSION_10_6)
  33 #define redis_fstat fstat64
  34 #define redis_stat stat64
  35 #else
  36 #define redis_fstat fstat
  37 #define redis_stat stat
  38 #endif
  39
  40 /* Test for proc filesystem */
  41 #ifdef __linux__
  42 #define HAVE_PROCFS 1
  43 #endif
  44
  45 /* Test for task_info() */
  46 #if defined(__APPLE__)
  47 #define HAVE_TASKINFO 1
  48 #endif
  49
  50 /* Test for backtrace() */
  51 #if defined(__APPLE__) || defined(__linux__)
  52 #define HAVE_BACKTRACE 1
  53 #endif
  54
  55 /* Test for polling API */
  56 #ifdef __linux__
  57 #define HAVE_EPOLL 1
  58 #endif
  59
  60 #if (defined(__APPLE__) && defined(MAC_OS_X_VERSION_10_6)) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined (__NetBSD__)
  61 #define HAVE_KQUEUE 1
  62 #endif
  63
  64 /* Define aof_fsync to fdatasync() in Linux and fsync() for all the rest */
  65 #ifdef __linux__
  66 #define aof_fsync fdatasync
  67 #else
  68 #define aof_fsync fsync
  69 #endif
  70
  71 /* Byte ordering detection */
  72 #include <sys/types.h> /* This will likely define BYTE_ORDER */
  73
  74 #ifndef BYTE_ORDER
  75 #if (BSD >= 199103)
  76 # include <machine/endian.h>
  77 #else
  78 #if defined(linux) || defined(__linux__)
  79 # include <endian.h>
  80 #else
  81 #define LITTLE_ENDIAN   1234    /* least-significant byte first (vax, pc) */
  82 #define BIG_ENDIAN      4321    /* most-significant byte first (IBM, net) */
  83 #define PDP_ENDIAN      3412    /* LSB first in word, MSW first in long (pdp)*/
  84
  85 #if defined(vax) || defined(ns32000) || defined(sun386) || defined(__i386__) || \
  86     defined(MIPSEL) || defined(_MIPSEL) || defined(BIT_ZERO_ON_RIGHT) || \
  87     defined(__alpha__) || defined(__alpha)
  88 #define BYTE_ORDER      LITTLE_ENDIAN
  89 #endif
  90
  91 #if defined(sel) || defined(pyr) || defined(mc68000) || defined(sparc) || \
  92     defined(is68k) || defined(tahoe) || defined(ibm032) || defined(ibm370) || \
  93     defined(MIPSEB) || defined(_MIPSEB) || defined(_IBMR2) || defined(DGUX) ||\
  94     defined(apollo) || defined(__convex__) || defined(_CRAY) || \
  95     defined(__hppa) || defined(__hp9000) || \
  96     defined(__hp9000s300) || defined(__hp9000s700) || \
  97     defined (BIT_ZERO_ON_LEFT) || defined(m68k) || defined(__sparc)
  98 #define BYTE_ORDER      BIG_ENDIAN
  99 #endif
 100 #endif /* linux */
 101 #endif /* BSD */
 102 #endif /* BYTE_ORDER */
 103
 104 #if defined(__BYTE_ORDER) && !defined(BYTE_ORDER)
 105 #if (__BYTE_ORDER == __LITTLE_ENDIAN)
 106 #define BYTE_ORDER LITTLE_ENDIAN
 107 #else
 108 #define BYTE_ORDER BIG_ENDIAN
 109 #endif
 110 #endif
 111
 112 #if !defined(BYTE_ORDER) || \
 113     (BYTE_ORDER != BIG_ENDIAN && BYTE_ORDER != LITTLE_ENDIAN)
 114         /* you must determine what the correct bit order is for
 115          * your compiler - the next line is an intentional error
 116          * which will force your compiles to bomb until you fix
 117          * the above macros.
 118          */
 119 #error "Undefined or invalid BYTE_ORDER"
 120 #endif
 121
 122 #endif