| /* |
| * Copyright (C) 2015 The Qt Company Ltd. |
| * Copyright (C) 2015 Konstantin Ritt |
| * |
| * Permission is hereby granted, without written agreement and without |
| * license or royalty fees, to use, copy, modify, and distribute this |
| * software and its documentation for any purpose, provided that the |
| * above copyright notice and the following two paragraphs appear in |
| * all copies of this software. |
| * |
| * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
| * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
| * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
| * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
| * DAMAGE. |
| * |
| * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
| * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
| * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
| * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
| * |
| */ |
| |
| #include <QtCore/qatomic.h> |
| |
| QT_USE_NAMESPACE |
| |
| namespace { |
| |
| // We need to cast hb_atomic_int_t to QAtomicInt and pointers to |
| // QAtomicPointer instead of using QAtomicOps, otherwise we get a failed |
| // overload resolution of the template arguments for testAndSetOrdered. |
| template <typename T> |
| inline QAtomicPointer<T> *makeAtomicPointer(T * const &ptr) |
| { |
| return reinterpret_cast<QAtomicPointer<T> *>(const_cast<T **>(&ptr)); |
| } |
| |
| } // namespace |
| |
| typedef int hb_atomic_int_impl_t; |
| #define HB_ATOMIC_INT_IMPL_INIT(V) (V) |
| #define hb_atomic_int_impl_add(AI, V) reinterpret_cast<QAtomicInt &>(AI).fetchAndAddOrdered(V) |
| |
| #define hb_atomic_ptr_impl_get(P) makeAtomicPointer(*(P))->loadAcquire() |
| #define hb_atomic_ptr_impl_cmpexch(P,O,N) makeAtomicPointer(*(P))->testAndSetOrdered((O), (N)) |
