/* * Original code from jemalloc with this license: * * Copyright (C) 2002-2013 Jason Evans . * All rights reserved. * Copyright (C) 2007-2012 Mozilla Foundation. All rights reserved. * Copyright (C) 2009-2013 Facebook, Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * 1. Redistributions of source code must retain the above copyright notice(s), * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice(s), * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``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 HOLDER(S) 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. * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * 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. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * * The Original Code is Copyright (C) 2016 Blender Foundation. * All rights reserved. * * The Original Code is: adapted from jemalloc. */ /** \file * \ingroup intern_atomic * * \brief Provides wrapper around system-specific atomic primitives, * and some extensions (faked-atomic operations over float numbers). */ #ifndef __ATOMIC_OPS_H__ #define __ATOMIC_OPS_H__ #include "intern/atomic_ops_utils.h" /******************************************************************************/ /* Function prototypes. */ ATOMIC_INLINE uint64_t atomic_add_and_fetch_uint64(uint64_t *p, uint64_t x); ATOMIC_INLINE uint64_t atomic_sub_and_fetch_uint64(uint64_t *p, uint64_t x); ATOMIC_INLINE uint64_t atomic_fetch_and_add_uint64(uint64_t *p, uint64_t x); ATOMIC_INLINE uint64_t atomic_fetch_and_sub_uint64(uint64_t *p, uint64_t x); ATOMIC_INLINE uint64_t atomic_cas_uint64(uint64_t *v, uint64_t old, uint64_t _new); ATOMIC_INLINE uint64_t atomic_load_uint64(const uint64_t *v); ATOMIC_INLINE void atomic_store_uint64(uint64_t *p, uint64_t v); ATOMIC_INLINE int64_t atomic_add_and_fetch_int64(int64_t *p, int64_t x); ATOMIC_INLINE int64_t atomic_sub_and_fetch_int64(int64_t *p, int64_t x); ATOMIC_INLINE int64_t atomic_fetch_and_add_int64(int64_t *p, int64_t x); ATOMIC_INLINE int64_t atomic_fetch_and_sub_int64(int64_t *p, int64_t x); ATOMIC_INLINE int64_t atomic_cas_int64(int64_t *v, int64_t old, int64_t _new); ATOMIC_INLINE int64_t atomic_load_int64(const int64_t *v); ATOMIC_INLINE void atomic_store_int64(int64_t *p, int64_t v); ATOMIC_INLINE uint32_t atomic_add_and_fetch_uint32(uint32_t *p, uint32_t x); ATOMIC_INLINE uint32_t atomic_sub_and_fetch_uint32(uint32_t *p, uint32_t x); ATOMIC_INLINE uint32_t atomic_cas_uint32(uint32_t *v, uint32_t old, uint32_t _new); ATOMIC_INLINE uint32_t atomic_load_uint32(const uint32_t *v); ATOMIC_INLINE void atomic_store_uint32(uint32_t *p, uint32_t v); ATOMIC_INLINE uint32_t atomic_fetch_and_add_uint32(uint32_t *p, uint32_t x); ATOMIC_INLINE uint32_t atomic_fetch_and_or_uint32(uint32_t *p, uint32_t x); ATOMIC_INLINE uint32_t atomic_fetch_and_and_uint32(uint32_t *p, uint32_t x); ATOMIC_INLINE int32_t atomic_add_and_fetch_int32(int32_t *p, int32_t x); ATOMIC_INLINE int32_t atomic_sub_and_fetch_int32(int32_t *p, int32_t x); ATOMIC_INLINE int32_t atomic_cas_int32(int32_t *v, int32_t old, int32_t _new); ATOMIC_INLINE int32_t atomic_load_int32(const int32_t *v); ATOMIC_INLINE void atomic_store_int32(int32_t *p, int32_t v); ATOMIC_INLINE int32_t atomic_fetch_and_add_int32(int32_t *p, int32_t x); ATOMIC_INLINE int32_t atomic_fetch_and_or_int32(int32_t *p, int32_t x); ATOMIC_INLINE int32_t atomic_fetch_and_and_int32(int32_t *p, int32_t x); ATOMIC_INLINE int16_t atomic_fetch_and_or_int16(int16_t *p, int16_t b); ATOMIC_INLINE int16_t atomic_fetch_and_and_int16(int16_t *p, int16_t b); ATOMIC_INLINE uint8_t atomic_fetch_and_or_uint8(uint8_t *p, uint8_t b); ATOMIC_INLINE uint8_t atomic_fetch_and_and_uint8(uint8_t *p, uint8_t b); ATOMIC_INLINE int8_t atomic_fetch_and_or_int8(int8_t *p, int8_t b); ATOMIC_INLINE int8_t atomic_fetch_and_and_int8(int8_t *p, int8_t b); ATOMIC_INLINE char atomic_fetch_and_or_char(char *p, char b); ATOMIC_INLINE char atomic_fetch_and_and_char(char *p, char b); ATOMIC_INLINE size_t atomic_add_and_fetch_z(size_t *p, size_t x); ATOMIC_INLINE size_t atomic_sub_and_fetch_z(size_t *p, size_t x); ATOMIC_INLINE size_t atomic_fetch_and_add_z(size_t *p, size_t x); ATOMIC_INLINE size_t atomic_fetch_and_sub_z(size_t *p, size_t x); ATOMIC_INLINE size_t atomic_cas_z(size_t *v, size_t old, size_t _new); ATOMIC_INLINE size_t atomic_load_z(const size_t *v); ATOMIC_INLINE void atomic_store_z(size_t *p, size_t v); /* Uses CAS loop, see warning below. */ ATOMIC_INLINE size_t atomic_fetch_and_update_max_z(size_t *p, size_t x); ATOMIC_INLINE unsigned int atomic_add_and_fetch_u(unsigned int *p, unsigned int x); ATOMIC_INLINE unsigned int atomic_sub_and_fetch_u(unsigned int *p, unsigned int x); ATOMIC_INLINE unsigned int atomic_fetch_and_add_u(unsigned int *p, unsigned int x); ATOMIC_INLINE unsigned int atomic_fetch_and_sub_u(unsigned int *p, unsigned int x); ATOMIC_INLINE unsigned int atomic_cas_u(unsigned int *v, unsigned int old, unsigned int _new); ATOMIC_INLINE void *atomic_cas_ptr(void **v, void *old, void *_new); ATOMIC_INLINE void *atomic_load_ptr(void *const *v); ATOMIC_INLINE void atomic_store_ptr(void **p, void *v); ATOMIC_INLINE float atomic_cas_float(float *v, float old, float _new); /* WARNING! Float 'atomics' are really faked ones, those are actually closer to some kind of * spinlock-sync'ed operation, which means they are only efficient if collisions are highly * unlikely (i.e. if probability of two threads working on the same pointer at the same time is * very low). */ ATOMIC_INLINE float atomic_add_and_fetch_fl(float *p, const float x); /******************************************************************************/ /* Include system-dependent implementations. */ /* Note that we are using _unix flavor as fallback here * (it will raise precompiler errors as needed). */ #if defined(_MSC_VER) # include "intern/atomic_ops_msvc.h" #else # include "intern/atomic_ops_unix.h" #endif /* Include 'fake' atomic extensions, built over real atomic primitives. */ #include "intern/atomic_ops_ext.h" #endif /* __ATOMIC_OPS_H__ */