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Diffstat (limited to 'src/3rdparty/forkfd/forkfd_gcc.h')
-rw-r--r-- | src/3rdparty/forkfd/forkfd_gcc.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/3rdparty/forkfd/forkfd_gcc.h b/src/3rdparty/forkfd/forkfd_gcc.h new file mode 100644 index 0000000000..b495944595 --- /dev/null +++ b/src/3rdparty/forkfd/forkfd_gcc.h @@ -0,0 +1,63 @@ +/**************************************************************************** +** +** Copyright (C) 2015 Intel Corporation +** +** Permission is hereby granted, free of charge, to any person obtaining a copy +** of this software and associated documentation files (the "Software"), to deal +** in the Software without restriction, including without limitation the rights +** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +** copies of the Software, and to permit persons to whom the Software is +** furnished to do so, subject to the following conditions: +** +** The above copyright notice and this permission notice shall be included in +** all copies or substantial portions of the Software. +** +** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +** THE SOFTWARE. +** +****************************************************************************/ + +#ifndef FFD_ATOMIC_GCC_H +#define FFD_ATOMIC_GCC_H + +/* atomics */ +/* we'll use the GCC 4.7 atomic builtins + * See http://gcc.gnu.org/onlinedocs/gcc/_005f_005fatomic-Builtins.html#_005f_005fatomic-Builtins + * Or in texinfo: C Extensions > __atomic Builtins + */ +typedef int ffd_atomic_int; +#define ffd_atomic_pointer(type) type* + +#define FFD_ATOMIC_INIT(val) (val) + +#define FFD_ATOMIC_RELAXED __ATOMIC_RELAXED +#define FFD_ATOMIC_ACQUIRE __ATOMIC_ACQUIRE +#define FFD_ATOMIC_RELEASE __ATOMIC_RELEASE +// acq_rel & cst not necessary + +#if !defined(__GNUC__) || \ + ((__GNUC__ - 0) * 100 + (__GNUC_MINOR__ - 0)) < 407 || \ + (defined(__INTEL_COMPILER) && __INTEL_COMPILER-0 < 1310) || \ + (defined(__clang__) && ((__clang_major__-0) * 100 + (__clang_minor-0)) < 303) +#define ffd_atomic_load_n(ptr,order) *(ptr) +#define ffd_atomic_store_n(ptr,val,order) (*(ptr) = (val), (void)0) +#define ffd_atomic_exchange_n(ptr,val,order) __sync_lock_test_and_set(ptr, val) +#define ffd_atomic_compare_exchange_n(ptr,expected,desired,weak,order1,order2) \ + __sync_bool_compare_and_swap(ptr, *(expected), desired) ? 1 : \ + (*(expected) = *(ptr), 0) +#define ffd_atomic_add_fetch(ptr,val,order) __sync_add_and_fetch(ptr, val) +#else +#define ffd_atomic_load(ptr,order) __atomic_load_n(ptr, order) +#define ffd_atomic_store(ptr,val,order) __atomic_store_n(ptr, val, order) +#define ffd_atomic_exchange(ptr,val,order) __atomic_exchange_n(ptr, val, order) +#define ffd_atomic_compare_exchange(ptr,expected,desired,order1,order2) \ + __atomic_compare_exchange_n(ptr, expected, desired, 1, order1, order2) +#define ffd_atomic_add_fetch(ptr,val,order) __atomic_add_fetch(ptr, val, order) +#endif + +#endif |