/* * Copyright (c) 2009-2012, Salvatore Sanfilippo * 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 // for fcntl(fd, F_FULLFSYNC) #include #endif #ifdef __linux__ #include #include #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 /* Test for accept4() */ #ifdef __linux__ #define HAVE_ACCEPT4 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 #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 */ #if defined(__linux__) #define redis_fsync(fd) fdatasync(fd) #elif defined(__APPLE__) #define redis_fsync(fd) fcntl(fd, F_FULLFSYNC) #else #define redis_fsync(fd) fsync(fd) #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 #if defined(__has_attribute) #if __has_attribute(no_sanitize) #define REDIS_NO_SANITIZE(sanitizer) __attribute__((no_sanitize(sanitizer))) #endif #endif #if !defined(REDIS_NO_SANITIZE) #define REDIS_NO_SANITIZE(sanitizer) #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 HAVE_SYNC_FILE_RANGE 1 #define rdb_fsync_range(fd,off,size) sync_file_range(fd,off,size,SYNC_FILE_RANGE_WAIT_BEFORE|SYNC_FILE_RANGE_WRITE) #elif defined(__APPLE__) #define rdb_fsync_range(fd,off,size) fcntl(fd, F_FULLFSYNC) #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 /* This will likely define BYTE_ORDER */ #ifndef BYTE_ORDER #if (BSD >= 199103) # include #else #if defined(linux) || defined(__linux__) # include #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 #define redis_set_thread_title(name) pthread_set_name_np(pthread_self(), name) #elif defined __NetBSD__ #include #define redis_set_thread_title(name) pthread_setname_np(pthread_self(), "%s", name) #elif defined __HAIKU__ #include #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 #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