homework-jianmu/include/os/osLz4.h

50 lines
1.5 KiB
C

/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _TD_OS_LZ4_H_
#define _TD_OS_LZ4_H_
#ifdef __cplusplus
extern "C" {
#endif
#ifdef WINDOWS
int32_t BUILDIN_CLZL(uint64_t val);
int32_t BUILDIN_CLZ(uint32_t val);
int32_t BUILDIN_CTZL(uint64_t val);
int32_t BUILDIN_CTZ(uint32_t val);
#elif defined (_TD_LINUX_32)
#define BUILDIN_CLZL(val) __builtin_clzll(val)
#define BUILDIN_CTZL(val) __builtin_ctzll(val)
#define BUILDIN_CLZ(val) __builtin_clz(val)
#define BUILDIN_CTZ(val) __builtin_ctz(val)
#elif defined (_TD_ARM_32)
#define BUILDIN_CLZL(val) __builtin_clzll(val)
#define BUILDIN_CTZL(val) __builtin_ctzll(val)
#define BUILDIN_CLZ(val) __builtin_clz(val)
#define BUILDIN_CTZ(val) __builtin_ctz(val)
#else
#define BUILDIN_CLZL(val) __builtin_clzl(val)
#define BUILDIN_CTZL(val) __builtin_ctzl(val)
#define BUILDIN_CLZ(val) __builtin_clz(val)
#define BUILDIN_CTZ(val) __builtin_ctz(val)
#endif
#ifdef __cplusplus
}
#endif
#endif /*_TD_OS_LZ4_H_*/