/* See endianconv.c top comments for more information * * ---------------------------------------------------------------------------- * * Copyright (c) 2011-Present, Redis Ltd. * All rights reserved. * * Licensed under your choice of the Redis Source Available License 2.0 * (RSALv2) or the Server Side Public License v1 (SSPLv1). */ #ifndef __ENDIANCONV_H #define __ENDIANCONV_H #include "config.h" #include void memrev16(void *p); void memrev32(void *p); void memrev64(void *p); uint16_t intrev16(uint16_t v); uint32_t intrev32(uint32_t v); uint64_t intrev64(uint64_t v); /* variants of the function doing the actual conversion only if the target * host is big endian */ #if (BYTE_ORDER == LITTLE_ENDIAN) #define memrev16ifbe(p) ((void)(0)) #define memrev32ifbe(p) ((void)(0)) #define memrev64ifbe(p) ((void)(0)) #define intrev16ifbe(v) (v) #define intrev32ifbe(v) (v) #define intrev64ifbe(v) (v) #else #define memrev16ifbe(p) memrev16(p) #define memrev32ifbe(p) memrev32(p) #define memrev64ifbe(p) memrev64(p) #define intrev16ifbe(v) intrev16(v) #define intrev32ifbe(v) intrev32(v) #define intrev64ifbe(v) intrev64(v) #endif /* The functions htonu64() and ntohu64() convert the specified value to * network byte ordering and back. In big endian systems they are no-ops. */ #if (BYTE_ORDER == BIG_ENDIAN) #define htonu64(v) (v) #define ntohu64(v) (v) #else #define htonu64(v) intrev64(v) #define ntohu64(v) intrev64(v) #endif #ifdef REDIS_TEST int endianconvTest(int argc, char *argv[], int flags); #endif #endif