mirror of
https://github.com/dragonflydb/dragonfly.git
synced 2024-12-14 11:58:02 +00:00
b1b0213cd2
Files are taken from redis commit e84ccc3f566f78344b098c3eef6e371653bc311b We need low-level redis datastructures for encoding values that are not strings, i.e. lists, sets, zsets etc.
265 lines
8.2 KiB
C
265 lines
8.2 KiB
C
/*
|
|
* 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 <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
|
|
#define HAVE_PROC_OOM_SCORE_ADJ 1
|
|
#endif
|
|
|
|
/* Test for task_info() */
|
|
#if defined(__APPLE__)
|
|
#define HAVE_TASKINFO 1
|
|
#endif
|
|
|
|
/* Test for backtrace() */
|
|
#if defined(__APPLE__) || (defined(__linux__) && defined(__GLIBC__)) || \
|
|
defined(__FreeBSD__) || ((defined(__OpenBSD__) || defined(__NetBSD__)) && defined(USE_BACKTRACE))\
|
|
|| defined(__DragonFly__) || (defined(__UCLIBC__) && defined(__UCLIBC_HAS_BACKTRACE__))
|
|
#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
|
|
#define HAVE_PSINFO 1
|
|
#endif
|
|
#endif
|
|
|
|
/* Define redis_fsync to fdatasync() in Linux and fsync() for all the rest */
|
|
#ifdef __linux__
|
|
#define redis_fsync fdatasync
|
|
#else
|
|
#define redis_fsync fsync
|
|
#endif
|
|
|
|
#if __GNUC__ >= 4
|
|
#define redis_unreachable __builtin_unreachable
|
|
#else
|
|
#define redis_unreachable abort
|
|
#endif
|
|
#if __GNUC__ >= 3
|
|
#define likely(x) __builtin_expect(!!(x), 1)
|
|
#define unlikely(x) __builtin_expect(!!(x), 0)
|
|
#else
|
|
#define likely(x) (x)
|
|
#define unlikely(x) (x)
|
|
#endif
|
|
|
|
/* Define rdb_fsync_range to sync_file_range() on Linux, otherwise we use
|
|
* the plain fsync() call. */
|
|
#if (defined(__linux__) && defined(SYNC_FILE_RANGE_WAIT_BEFORE))
|
|
#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(__HAIKU__)
|
|
#define ESOCKTNOSUPPORT 0
|
|
#endif
|
|
|
|
#if (defined __linux || 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
|
|
* endianness 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
|
|
|
|
/* Define for redis_set_thread_title */
|
|
#ifdef __linux__
|
|
#define redis_set_thread_title(name) pthread_setname_np(pthread_self(), name)
|
|
#else
|
|
#if (defined __FreeBSD__ || defined __OpenBSD__)
|
|
#include <pthread_np.h>
|
|
#define redis_set_thread_title(name) pthread_set_name_np(pthread_self(), name)
|
|
#elif defined __NetBSD__
|
|
#include <pthread.h>
|
|
#define redis_set_thread_title(name) pthread_setname_np(pthread_self(), "%s", name)
|
|
#elif defined __HAIKU__
|
|
#include <kernel/OS.h>
|
|
#define redis_set_thread_title(name) rename_thread(find_thread(0), name)
|
|
#else
|
|
#if (defined __APPLE__ && defined(MAC_OS_X_VERSION_10_7))
|
|
int pthread_setname_np(const char *name);
|
|
#include <pthread.h>
|
|
#define redis_set_thread_title(name) pthread_setname_np(name)
|
|
#else
|
|
#define redis_set_thread_title(name)
|
|
#endif
|
|
#endif
|
|
#endif
|
|
|
|
/* Check if we can use setcpuaffinity(). */
|
|
#if (defined __linux || defined __NetBSD__ || defined __FreeBSD__ || defined __DragonFly__)
|
|
#define USE_SETCPUAFFINITY
|
|
void setcpuaffinity(const char *cpulist);
|
|
#endif
|
|
|
|
#endif
|