1 files changed, 64 insertions, 0 deletions
diff --git a/src/3rdparty/forkfd/forkfd_c11.h b/src/3rdparty/forkfd/forkfd_c11.h
new file mode 100644
index 0000000000..f3dc2b5357
--- /dev/null
+++ b/src/3rdparty/forkfd/forkfd_c11.h
@@ -0,0 +1,64 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 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_C11_H
+#define FFD_ATOMIC_C11_H
+
+/* atomics */
+/* Using the C11 <stdatomic.h> header or C++11's <atomic>
+ */
+
+#if defined(__cplusplus)
+#  include <atomic>
+#  define ffd_atomic_pointer(type)  std::atomic<type*>
+#  define FFD_ATOMIC_RELAXED        std::memory_order_relaxed
+#  define FFD_ATOMIC_ACQUIRE        std::memory_order_acquire
+#  define FFD_ATOMIC_RELEASE        std::memory_order_release
+// acq_rel & cst not necessary
+typedef std::atomic_int ffd_atomic_int;
+#else
+#  include <stdatomic.h>
+#  define ffd_atomic_pointer(type)  _Atomic(type*)
+#  define FFD_ATOMIC_RELAXED        memory_order_relaxed
+#  define FFD_ATOMIC_ACQUIRE        memory_order_acquire
+#  define FFD_ATOMIC_RELEASE        memory_order_release
+// acq_rel & cst not necessary
+
+typedef atomic_int ffd_atomic_int;
+#endif
+
+#define FFD_ATOMIC_INIT(val)        ATOMIC_VAR_INIT(val)
+
+#define ffd_atomic_load(ptr, order) \
+    atomic_load_explicit(ptr, order)
+#define ffd_atomic_store(ptr, val, order) \
+    atomic_store_explicit(ptr, val, order)
+#define ffd_atomic_exchange(ptr,val,order) \
+    atomic_exchange_explicit(ptr, val, order)
+#define ffd_atomic_compare_exchange(ptr, expected, desired, order1, order2) \
+    atomic_compare_exchange_strong_explicit(ptr, expected, desired, order1, order2)
+#define ffd_atomic_add_fetch(ptr, val, order) \
+    (atomic_fetch_add_explicit(ptr, val, order) + (val))
+
+#endif