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Diffstat (limited to 'src/config.h')
| -rw-r--r-- | src/config.h | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/src/config.h b/src/config.h new file mode 100644 index 0000000..c23f1c7 --- /dev/null +++ b/src/config.h @@ -0,0 +1,227 @@ +/* + * Copyright (c) 2009-2012, Salvatore Sanfilippo <antirez at gmail dot com> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Redis nor the names of its contributors may be used + * to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __CONFIG_H +#define __CONFIG_H + +#ifdef __APPLE__ +#include <AvailabilityMacros.h> +#endif + +#ifdef __linux__ +#include <linux/version.h> +#include <features.h> +#endif + +/* Define redis_fstat to fstat or fstat64() */ +#if defined(__APPLE__) && !defined(MAC_OS_X_VERSION_10_6) +#define redis_fstat fstat64 +#define redis_stat stat64 +#else +#define redis_fstat fstat +#define redis_stat stat +#endif + +/* Test for proc filesystem */ +#ifdef __linux__ +#define HAVE_PROC_STAT 1 +#define HAVE_PROC_MAPS 1 +#define HAVE_PROC_SMAPS 1 +#define HAVE_PROC_SOMAXCONN 1 +#endif + +/* Test for task_info() */ +#if defined(__APPLE__) +#define HAVE_TASKINFO 1 +#endif + +/* Test for backtrace() */ +#if defined(__APPLE__) || (defined(__linux__) && defined(__GLIBC__)) +#define HAVE_BACKTRACE 1 +#endif + +/* MSG_NOSIGNAL. */ +#ifdef __linux__ +#define HAVE_MSG_NOSIGNAL 1 +#endif + +/* Test for polling API */ +#ifdef __linux__ +#define HAVE_EPOLL 1 +#endif + +#if (defined(__APPLE__) && defined(MAC_OS_X_VERSION_10_6)) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined (__NetBSD__) +#define HAVE_KQUEUE 1 +#endif + +#ifdef __sun +#include <sys/feature_tests.h> +#ifdef _DTRACE_VERSION +#define HAVE_EVPORT 1 +#endif +#endif + +/* Define aof_fsync to fdatasync() in Linux and fsync() for all the rest */ +#ifdef __linux__ +#define aof_fsync fdatasync +#else +#define aof_fsync fsync +#endif + +/* Define rdb_fsync_range to sync_file_range() on Linux, otherwise we use + * the plain fsync() call. */ +#ifdef __linux__ +#if defined(__GLIBC__) && defined(__GLIBC_PREREQ) +#if (LINUX_VERSION_CODE >= 0x020611 && __GLIBC_PREREQ(2, 6)) +#define HAVE_SYNC_FILE_RANGE 1 +#endif +#else +#if (LINUX_VERSION_CODE >= 0x020611) +#define HAVE_SYNC_FILE_RANGE 1 +#endif +#endif +#endif + +#ifdef HAVE_SYNC_FILE_RANGE +#define rdb_fsync_range(fd,off,size) sync_file_range(fd,off,size,SYNC_FILE_RANGE_WAIT_BEFORE|SYNC_FILE_RANGE_WRITE) +#else +#define rdb_fsync_range(fd,off,size) fsync(fd) +#endif + +/* Check if we can use setproctitle(). + * BSD systems have support for it, we provide an implementation for + * Linux and osx. */ +#if (defined __NetBSD__ || defined __FreeBSD__ || defined __OpenBSD__) +#define USE_SETPROCTITLE +#endif + +#if ((defined __linux && defined(__GLIBC__)) || defined __APPLE__) +#define USE_SETPROCTITLE +#define INIT_SETPROCTITLE_REPLACEMENT +void spt_init(int argc, char *argv[]); +void setproctitle(const char *fmt, ...); +#endif + +/* Byte ordering detection */ +#include <sys/types.h> /* This will likely define BYTE_ORDER */ + +#ifndef BYTE_ORDER +#if (BSD >= 199103) +# include <machine/endian.h> +#else +#if defined(linux) || defined(__linux__) +# include <endian.h> +#else +#define LITTLE_ENDIAN 1234 /* least-significant byte first (vax, pc) */ +#define BIG_ENDIAN 4321 /* most-significant byte first (IBM, net) */ +#define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp)*/ + +#if defined(__i386__) || defined(__x86_64__) || defined(__amd64__) || \ + defined(vax) || defined(ns32000) || defined(sun386) || \ + defined(MIPSEL) || defined(_MIPSEL) || defined(BIT_ZERO_ON_RIGHT) || \ + defined(__alpha__) || defined(__alpha) +#define BYTE_ORDER LITTLE_ENDIAN +#endif + +#if defined(sel) || defined(pyr) || defined(mc68000) || defined(sparc) || \ + defined(is68k) || defined(tahoe) || defined(ibm032) || defined(ibm370) || \ + defined(MIPSEB) || defined(_MIPSEB) || defined(_IBMR2) || defined(DGUX) ||\ + defined(apollo) || defined(__convex__) || defined(_CRAY) || \ + defined(__hppa) || defined(__hp9000) || \ + defined(__hp9000s300) || defined(__hp9000s700) || \ + defined (BIT_ZERO_ON_LEFT) || defined(m68k) || defined(__sparc) +#define BYTE_ORDER BIG_ENDIAN +#endif +#endif /* linux */ +#endif /* BSD */ +#endif /* BYTE_ORDER */ + +/* Sometimes after including an OS-specific header that defines the + * endianess we end with __BYTE_ORDER but not with BYTE_ORDER that is what + * the Redis code uses. In this case let's define everything without the + * underscores. */ +#ifndef BYTE_ORDER +#ifdef __BYTE_ORDER +#if defined(__LITTLE_ENDIAN) && defined(__BIG_ENDIAN) +#ifndef LITTLE_ENDIAN +#define LITTLE_ENDIAN __LITTLE_ENDIAN +#endif +#ifndef BIG_ENDIAN +#define BIG_ENDIAN __BIG_ENDIAN +#endif +#if (__BYTE_ORDER == __LITTLE_ENDIAN) +#define BYTE_ORDER LITTLE_ENDIAN +#else +#define BYTE_ORDER BIG_ENDIAN +#endif +#endif +#endif +#endif + +#if !defined(BYTE_ORDER) || \ + (BYTE_ORDER != BIG_ENDIAN && BYTE_ORDER != LITTLE_ENDIAN) + /* you must determine what the correct bit order is for + * your compiler - the next line is an intentional error + * which will force your compiles to bomb until you fix + * the above macros. + */ +#error "Undefined or invalid BYTE_ORDER" +#endif + +#if (__i386 || __amd64 || __powerpc__) && __GNUC__ +#define GNUC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) +#if defined(__clang__) +#define HAVE_ATOMIC +#endif +#if (defined(__GLIBC__) && defined(__GLIBC_PREREQ)) +#if (GNUC_VERSION >= 40100 && __GLIBC_PREREQ(2, 6)) +#define HAVE_ATOMIC +#endif +#endif +#endif + +/* Make sure we can test for ARM just checking for __arm__, since sometimes + * __arm is defined but __arm__ is not. */ +#if defined(__arm) && !defined(__arm__) +#define __arm__ +#endif +#if defined (__aarch64__) && !defined(__arm64__) +#define __arm64__ +#endif + +/* Make sure we can test for SPARC just checking for __sparc__. */ +#if defined(__sparc) && !defined(__sparc__) +#define __sparc__ +#endif + +#if defined(__sparc__) || defined(__arm__) +#define USE_ALIGNED_ACCESS +#endif + +#endif |