| /* |
| * Copyright (c) 2019-2020 Apple 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, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. OR |
| * CONTRIBUTORS 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. |
| */ |
| |
| #ifndef PAS_UTILITY_HEAP_SUPPORT_H |
| #define PAS_UTILITY_HEAP_SUPPORT_H |
| |
| #include "pas_local_allocator.h" |
| #include "pas_utility_heap_config.h" |
| #include "pas_utils.h" |
| |
| PAS_BEGIN_EXTERN_C; |
| |
| struct pas_utility_heap_support; |
| union pas_utility_heap_allocator; |
| typedef struct pas_utility_heap_support pas_utility_heap_support; |
| typedef union pas_utility_heap_allocator pas_utility_heap_allocator; |
| |
| struct pas_utility_heap_support { |
| pas_compact_atomic_segregated_size_directory_ptr |
| index_to_size_directory[PAS_NUM_UTILITY_SIZE_CLASSES]; |
| pas_utility_heap_allocator* allocators; |
| uint64_t slow_path_count; |
| }; |
| |
| union pas_utility_heap_allocator { |
| pas_local_allocator allocator; |
| char fake_field_to_force_size[ |
| PAS_LOCAL_ALLOCATOR_SIZE(PAS_UTILITY_NUM_ALLOC_BITS)]; |
| }; |
| |
| #define PAS_UTILITY_HEAP_SUPPORT_INITIALIZER { \ |
| .index_to_size_directory = {[0 ... PAS_NUM_UTILITY_SIZE_CLASSES - 1] = \ |
| PAS_COMPACT_ATOMIC_PTR_INITIALIZER}, \ |
| .allocators = NULL, \ |
| .slow_path_count = 0 \ |
| } |
| |
| PAS_END_EXTERN_C; |
| |
| #endif /* PAS_UTILITY_HEAP_SUPPORT_H */ |
| |