Artifact 2804045e9769691774917c89e0d3c2f38b89a6f01b2685154afdb50b5b98dd3d:
- File
src/OFMacros.h
— part of check-in
[b91a8283fe]
at
2010-03-05 11:52:18
on branch 0.2
— Merge a few changesets from the default branch into the 0.2 branch.
Changesets:
* b95fcaa6d694
* 804c68d222b4
* da8cd738da3d
* 1109d5ce3419
* d03f5c1ca95d
* 2a7017722165
* 4fccdc79eeb7
* d228149fbc04
* 8782d412a4a6 (user: js, size: 4776) [annotate] [blame] [check-ins using] - File src/macros.h — part of check-in [42886185fd] at 2010-02-19 16:36:20 on branch trunk — Update copyright. (user: js, size: 4776) [annotate] [blame] [check-ins using]
/* * Copyright (c) 2008 - 2010 * Jonathan Schleifer <js@webkeks.org> * * All rights reserved. * * This file is part of ObjFW. It may be distributed under the terms of the * Q Public License 1.0, which can be found in the file LICENSE included in * the packaging of this file. */ #import "objfw-defs.h" #include <stddef.h> #include <stdint.h> #ifdef __GNUC__ # define OF_INLINE inline __attribute__((always_inline)) # define OF_LIKELY(cond) __builtin_expect(!!(cond), 1) # define OF_UNLIKELY(cond) __builtin_expect(!!(cond), 0) #else # define OF_INLINE inline # define OF_LIKELY(cond) cond # define OF_UNLIKELY(cond) cond #endif /* Required to build universal binaries on OS X */ #if __BIG_ENDIAN__ || __LITTLE_ENDIAN__ # if __BIG_ENDIAN__ && __LITTLE_ENDIAN__ # error __BIG_ENDIAN__ and __LITTLE_ENDIAN__ defined! # endif # undef OF_BIG_ENDIAN # if __BIG_ENDIAN__ # define OF_BIG_ENDIAN # endif #endif #ifdef __GNUC__ # if defined(__amd64__) || defined(__x86_64__) # define OF_AMD64_ASM # elif defined(__i386__) # define OF_X86_ASM # elif defined(__ppc__) || defined(__PPC__) # define OF_PPC_ASM # elif defined(__arm__) || defined(__ARM__) # define OF_ARM_ASM # endif #endif #define OF_BSWAP16_CONST(i) \ (((uint16_t)i & UINT16_C(0xFF00)) >> 8 | \ ((uint16_t)i & UINT16_C(0x00FF)) << 8) #define OF_BSWAP32_CONST(i) \ (((uint32_t)i & UINT32_C(0xFF000000)) >> 24 | \ ((uint32_t)i & UINT32_C(0x00FF0000)) >> 8 | \ ((uint32_t)i & UINT32_C(0x0000FF00)) << 8 | \ ((uint32_t)i & UINT32_C(0x000000FF)) << 24) #define OF_BSWAP64_CONST(i) \ (((uint64_t)i & UINT64_C(0xFF00000000000000)) >> 56 | \ ((uint64_t)i & UINT64_C(0x00FF000000000000)) >> 40 | \ ((uint64_t)i & UINT64_C(0x0000FF0000000000)) >> 24 | \ ((uint64_t)i & UINT64_C(0x000000FF00000000)) >> 8 | \ ((uint64_t)i & UINT64_C(0x00000000FF000000)) << 8 | \ ((uint64_t)i & UINT64_C(0x0000000000FF0000)) << 24 | \ ((uint64_t)i & UINT64_C(0x000000000000FF00)) << 40 | \ ((uint64_t)i & UINT64_C(0x00000000000000FF)) << 56) static OF_INLINE uint16_t OF_BSWAP16_NONCONST(uint16_t i) { #if defined(OF_X86_ASM) || defined(OF_AMD64_ASM) asm("xchgb %h0, %b0" : "=Q"(i) : "0"(i)); #elif defined(OF_PPC_ASM) asm("lhbrx %0, 0, %1" : "=r"(i) : "r"(&i), "m"(i)); #elif defined(OF_ARM_ASM) asm("rev16 %0, %0" : "=r"(i) : "0"(i)); #else i = (i & UINT16_C(0xFF00)) >> 8 | (i & UINT16_C(0x00FF)) << 8; #endif return i; } static OF_INLINE uint32_t OF_BSWAP32_NONCONST(uint32_t i) { #if defined(OF_X86_ASM) || defined(OF_AMD64_ASM) asm("bswap %0" : "=q"(i) : "0"(i)); #elif defined(OF_PPC_ASM) asm("lwbrx %0, 0, %1" : "=r"(i) : "r"(&i), "m"(i)); #elif defined(OF_ARM_ASM) asm("rev %0, %0" : "=r"(i) : "0"(i)); #else i = (i & UINT32_C(0xFF000000)) >> 24 | (i & UINT32_C(0x00FF0000)) >> 8 | (i & UINT32_C(0x0000FF00)) << 8 | (i & UINT32_C(0x000000FF)) << 24; #endif return i; } static OF_INLINE uint64_t OF_BSWAP64_NONCONST(uint64_t i) { #if defined(OF_AMD64_ASM) asm("bswap %0" : "=r"(i) : "0"(i)); #elif defined(OF_X86_ASM) asm("bswap %%eax\n\t" "bswap %%edx\n\t" "xchgl %%eax, %%edx" : "=A"(i): "0"(i)); #else i = (uint64_t)OF_BSWAP32_NONCONST(i & 0xFFFFFFFF) << 32 | OF_BSWAP32_NONCONST(i >> 32); #endif return i; } #ifdef __GNUC__ # define OF_BSWAP16(i) \ (__builtin_constant_p(i) ? OF_BSWAP16_CONST(i) : OF_BSWAP16_NONCONST(i)) # define OF_BSWAP32(i) \ (__builtin_constant_p(i) ? OF_BSWAP32_CONST(i) : OF_BSWAP32_NONCONST(i)) # define OF_BSWAP64(i) \ (__builtin_constant_p(i) ? OF_BSWAP64_CONST(i) : OF_BSWAP64_NONCONST(i)) #else # define OF_BSWAP16(i) OF_BSWAP16_CONST(i) # define OF_BSWAP32(i) OF_BSWAP32_CONST(i) # define OF_BSWAP64(i) OF_BSWAP64_CONST(i) #endif static OF_INLINE void OF_BSWAP32_V(uint32_t *buf, size_t len) { while (len--) { *buf = OF_BSWAP32(*buf); buf++; } } #ifdef OF_BIG_ENDIAN # define OF_BSWAP16_IF_BE(i) OF_BSWAP16(i) # define OF_BSWAP32_IF_BE(i) OF_BSWAP32(i) # define OF_BSWAP64_IF_BE(i) OF_BSWAP64(i) # define OF_BSWAP16_IF_LE(i) i # define OF_BSWAP32_IF_LE(i) i # define OF_BSWAP64_IF_LE(i) i # define OF_BSWAP32_V_IF_BE(buf, len) OF_BSWAP32_V(buf, len) #else # define OF_BSWAP16_IF_BE(i) i # define OF_BSWAP32_IF_BE(i) i # define OF_BSWAP64_IF_BE(i) i # define OF_BSWAP16_IF_LE(i) OF_BSWAP16(i) # define OF_BSWAP32_IF_LE(i) OF_BSWAP32(i) # define OF_BSWAP64_IF_LE(i) OF_BSWAP64(i) # define OF_BSWAP32_V_IF_BE(buf, len) #endif #define OF_ROL(val, bits) \ (((val) << (bits)) | ((val) >> (32 - (bits)))) #define OF_HASH_INIT(hash) hash = 0 #define OF_HASH_ADD(hash, byte) \ { \ hash += byte; \ hash += (hash << 10); \ hash ^= (hash >> 6); \ } #define OF_HASH_FINALIZE(hash) \ { \ hash += (hash << 3); \ hash ^= (hash >> 11); \ hash += (hash << 15); \ }