303 lines
8.4 KiB
C
303 lines
8.4 KiB
C
/*
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* Copyright (c) 2009-Present, Redis Ltd.
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* All rights reserved.
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*
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* Licensed under your choice of the Redis Source Available License 2.0
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* (RSALv2) or the Server Side Public License v1 (SSPLv1).
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*/
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#ifndef __CONFIG_H
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#define __CONFIG_H
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#ifdef __APPLE__
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#include <fcntl.h> // for fcntl(fd, F_FULLFSYNC)
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#include <AvailabilityMacros.h>
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#endif
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#ifdef __linux__
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#include <features.h>
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#include <fcntl.h>
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#endif
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#if defined(__APPLE__) && defined(__MAC_OS_X_VERSION_MAX_ALLOWED) && __MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
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#define MAC_OS_10_6_DETECTED
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#endif
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/* Define redis_fstat to fstat or fstat64() */
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#if defined(__APPLE__) && !defined(MAC_OS_10_6_DETECTED)
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#define redis_fstat fstat64
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#define redis_stat stat64
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#else
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#define redis_fstat fstat
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#define redis_stat stat
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#endif
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/* Test for proc filesystem */
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#ifdef __linux__
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#define HAVE_PROC_STAT 1
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#define HAVE_PROC_MAPS 1
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#define HAVE_PROC_SMAPS 1
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#define HAVE_PROC_SOMAXCONN 1
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#define HAVE_PROC_OOM_SCORE_ADJ 1
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#endif
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/* Test for task_info() */
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#if defined(__APPLE__)
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#define HAVE_TASKINFO 1
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#endif
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/* Test for somaxconn check */
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#if defined(__APPLE__) || defined(__FreeBSD__)
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#define HAVE_SYSCTL_KIPC_SOMAXCONN 1
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#elif defined(__OpenBSD__)
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#define HAVE_SYSCTL_KERN_SOMAXCONN 1
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#endif
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/* Test for backtrace() */
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#if defined(__APPLE__) || (defined(__linux__) && defined(__GLIBC__)) || \
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defined(__FreeBSD__) || ((defined(__OpenBSD__) || defined(__NetBSD__) || defined(__sun)) && defined(USE_BACKTRACE))\
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|| defined(__DragonFly__) || (defined(__UCLIBC__) && defined(__UCLIBC_HAS_BACKTRACE__))
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#define HAVE_BACKTRACE 1
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#endif
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/* MSG_NOSIGNAL. */
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#ifdef __linux__
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#define HAVE_MSG_NOSIGNAL 1
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#if defined(SO_MARK)
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#define HAVE_SOCKOPTMARKID 1
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#define SOCKOPTMARKID SO_MARK
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#endif
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#endif
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/* Test for polling API */
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#ifdef __linux__
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#define HAVE_EPOLL 1
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#endif
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/* Test for accept4() */
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#if defined(__linux__) || defined(OpenBSD5_7) || \
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(__FreeBSD__ >= 10 || __FreeBSD_version >= 1000000) || \
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(defined(NetBSD8_0) || __NetBSD_Version__ >= 800000000)
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#define HAVE_ACCEPT4 1
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#endif
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#if (defined(__APPLE__) && defined(MAC_OS_10_6_DETECTED)) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined (__NetBSD__)
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#define HAVE_KQUEUE 1
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#endif
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#ifdef __sun
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#include <sys/feature_tests.h>
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#ifdef _DTRACE_VERSION
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#define HAVE_EVPORT 1
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#define HAVE_PSINFO 1
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#endif
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#endif
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/* Define redis_fsync to fdatasync() in Linux and fsync() for all the rest */
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#if defined(__linux__)
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#define redis_fsync(fd) fdatasync(fd)
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#elif defined(__APPLE__)
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#define redis_fsync(fd) fcntl(fd, F_FULLFSYNC)
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#else
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#define redis_fsync(fd) fsync(fd)
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#endif
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#if defined(__FreeBSD__)
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#if defined(SO_USER_COOKIE)
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#define HAVE_SOCKOPTMARKID 1
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#define SOCKOPTMARKID SO_USER_COOKIE
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#endif
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#endif
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#if defined(__OpenBSD__)
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#if defined(SO_RTABLE)
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#define HAVE_SOCKOPTMARKID 1
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#define SOCKOPTMARKID SO_RTABLE
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#endif
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#endif
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#if __GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
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#define redis_unreachable __builtin_unreachable
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#else
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#define redis_unreachable abort
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#endif
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#if __GNUC__ >= 3
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#define likely(x) __builtin_expect(!!(x), 1)
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#define unlikely(x) __builtin_expect(!!(x), 0)
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#else
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#define likely(x) (x)
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#define unlikely(x) (x)
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#endif
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#if defined(__has_attribute)
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#if __has_attribute(no_sanitize)
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#define REDIS_NO_SANITIZE(sanitizer) __attribute__((no_sanitize(sanitizer)))
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#endif
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#endif
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#if !defined(REDIS_NO_SANITIZE)
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#define REDIS_NO_SANITIZE(sanitizer)
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#endif
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/* Define rdb_fsync_range to sync_file_range() on Linux, otherwise we use
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* the plain fsync() call. */
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#if (defined(__linux__) && defined(SYNC_FILE_RANGE_WAIT_BEFORE))
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#define HAVE_SYNC_FILE_RANGE 1
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#define rdb_fsync_range(fd,off,size) sync_file_range(fd,off,size,SYNC_FILE_RANGE_WAIT_BEFORE|SYNC_FILE_RANGE_WRITE)
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#elif defined(__APPLE__)
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#define rdb_fsync_range(fd,off,size) fcntl(fd, F_FULLFSYNC)
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#else
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#define rdb_fsync_range(fd,off,size) fsync(fd)
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#endif
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/* Check if we can use setproctitle().
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* BSD systems have support for it, we provide an implementation for
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* Linux and osx. */
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#if (defined __NetBSD__ || defined __FreeBSD__ || defined __OpenBSD__)
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#define USE_SETPROCTITLE
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#endif
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#if defined(__HAIKU__)
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#define ESOCKTNOSUPPORT 0
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#endif
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#if (defined __linux || defined __APPLE__)
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#define USE_SETPROCTITLE
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#define INIT_SETPROCTITLE_REPLACEMENT
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void spt_init(int argc, char *argv[]);
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void setproctitle(const char *fmt, ...);
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#endif
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/* Byte ordering detection */
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#include <sys/types.h> /* This will likely define BYTE_ORDER */
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#ifndef BYTE_ORDER
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#if (BSD >= 199103)
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# include <machine/endian.h>
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#else
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#if defined(linux) || defined(__linux__)
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# include <endian.h>
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#else
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#define LITTLE_ENDIAN 1234 /* least-significant byte first (vax, pc) */
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#define BIG_ENDIAN 4321 /* most-significant byte first (IBM, net) */
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#define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp)*/
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#if defined(__i386__) || defined(__x86_64__) || defined(__amd64__) || \
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defined(vax) || defined(ns32000) || defined(sun386) || \
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defined(MIPSEL) || defined(_MIPSEL) || defined(BIT_ZERO_ON_RIGHT) || \
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defined(__alpha__) || defined(__alpha)
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#define BYTE_ORDER LITTLE_ENDIAN
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#endif
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#if defined(sel) || defined(pyr) || defined(mc68000) || defined(sparc) || \
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defined(is68k) || defined(tahoe) || defined(ibm032) || defined(ibm370) || \
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defined(MIPSEB) || defined(_MIPSEB) || defined(_IBMR2) || defined(DGUX) ||\
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defined(apollo) || defined(__convex__) || defined(_CRAY) || \
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defined(__hppa) || defined(__hp9000) || \
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defined(__hp9000s300) || defined(__hp9000s700) || \
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defined (BIT_ZERO_ON_LEFT) || defined(m68k) || defined(__sparc)
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#define BYTE_ORDER BIG_ENDIAN
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#endif
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#endif /* linux */
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#endif /* BSD */
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#endif /* BYTE_ORDER */
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/* Sometimes after including an OS-specific header that defines the
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* endianness we end with __BYTE_ORDER but not with BYTE_ORDER that is what
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* the Redis code uses. In this case let's define everything without the
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* underscores. */
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#ifndef BYTE_ORDER
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#ifdef __BYTE_ORDER
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#if defined(__LITTLE_ENDIAN) && defined(__BIG_ENDIAN)
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#ifndef LITTLE_ENDIAN
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#define LITTLE_ENDIAN __LITTLE_ENDIAN
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#endif
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#ifndef BIG_ENDIAN
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#define BIG_ENDIAN __BIG_ENDIAN
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#endif
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#if (__BYTE_ORDER == __LITTLE_ENDIAN)
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#define BYTE_ORDER LITTLE_ENDIAN
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#else
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#define BYTE_ORDER BIG_ENDIAN
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#endif
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#endif
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#endif
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#endif
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#if !defined(BYTE_ORDER) || \
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(BYTE_ORDER != BIG_ENDIAN && BYTE_ORDER != LITTLE_ENDIAN)
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/* you must determine what the correct bit order is for
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* your compiler - the next line is an intentional error
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* which will force your compiles to bomb until you fix
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* the above macros.
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*/
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#error "Undefined or invalid BYTE_ORDER"
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#endif
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#if (__i386 || __amd64 || __powerpc__) && __GNUC__
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#define GNUC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
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#if defined(__clang__)
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#define HAVE_ATOMIC
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#endif
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#if (defined(__GLIBC__) && defined(__GLIBC_PREREQ))
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#if (GNUC_VERSION >= 40100 && __GLIBC_PREREQ(2, 6))
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#define HAVE_ATOMIC
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#endif
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#endif
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#endif
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/* Make sure we can test for ARM just checking for __arm__, since sometimes
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* __arm is defined but __arm__ is not. */
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#if defined(__arm) && !defined(__arm__)
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#define __arm__
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#endif
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#if defined (__aarch64__) && !defined(__arm64__)
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#define __arm64__
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#endif
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/* Make sure we can test for SPARC just checking for __sparc__. */
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#if defined(__sparc) && !defined(__sparc__)
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#define __sparc__
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#endif
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#if defined(__sparc__) || defined(__arm__)
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#define USE_ALIGNED_ACCESS
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#endif
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/* Define for redis_set_thread_title */
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#ifdef __linux__
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#define redis_set_thread_title(name) pthread_setname_np(pthread_self(), name)
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#else
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#if (defined __FreeBSD__ || defined __OpenBSD__)
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#include <pthread_np.h>
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#define redis_set_thread_title(name) pthread_set_name_np(pthread_self(), name)
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#elif defined __NetBSD__
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#include <pthread.h>
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#define redis_set_thread_title(name) pthread_setname_np(pthread_self(), "%s", name)
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#elif defined __HAIKU__
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#include <kernel/OS.h>
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#define redis_set_thread_title(name) rename_thread(find_thread(0), name)
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#else
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#if (defined __APPLE__ && defined(__MAC_OS_X_VERSION_MAX_ALLOWED) && __MAC_OS_X_VERSION_MAX_ALLOWED >= 1070)
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int pthread_setname_np(const char *name);
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#include <pthread.h>
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#define redis_set_thread_title(name) pthread_setname_np(name)
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#else
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#define redis_set_thread_title(name)
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#endif
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#endif
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#endif
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/* Check if we can use setcpuaffinity(). */
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#if (defined __linux || defined __NetBSD__ || defined __FreeBSD__ || defined __DragonFly__)
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#define USE_SETCPUAFFINITY
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void setcpuaffinity(const char *cpulist);
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#endif
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/* Test for posix_fadvise() */
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#if defined(__linux__) || __FreeBSD__ >= 10
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#define HAVE_FADVISE
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#endif
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#endif
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