| /* |
| * Copyright (c) 2019-2021 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_LARGE_HEAP_PHYSICAL_PAGE_SHARING_CACHE_H |
| #define PAS_LARGE_HEAP_PHYSICAL_PAGE_SHARING_CACHE_H |
| |
| #include "pas_bootstrap_heap_page_provider.h" |
| #include "pas_enumerable_range_list.h" |
| #include "pas_simple_large_free_heap.h" |
| #include "pas_utils.h" |
| |
| PAS_BEGIN_EXTERN_C; |
| |
| struct pas_large_heap_physical_page_sharing_cache; |
| typedef struct pas_large_heap_physical_page_sharing_cache pas_large_heap_physical_page_sharing_cache; |
| |
| struct pas_large_heap_physical_page_sharing_cache { |
| pas_simple_large_free_heap free_heap; |
| pas_heap_page_provider provider; |
| void* provider_arg; |
| }; |
| |
| #define PAS_LARGE_FREE_HEAP_PHYSICAL_PAGE_SHARING_CACHE_INITIALIZER \ |
| ((pas_large_heap_physical_page_sharing_cache){ \ |
| .free_heap = PAS_SIMPLE_LARGE_FREE_HEAP_INITIALIZER, \ |
| .provider = pas_bootstrap_heap_page_provider, \ |
| .provider_arg = NULL \ |
| }) |
| |
| PAS_API extern pas_enumerable_range_list pas_large_heap_physical_page_sharing_cache_page_list; |
| |
| PAS_API void |
| pas_large_heap_physical_page_sharing_cache_construct( |
| pas_large_heap_physical_page_sharing_cache* cache, |
| pas_heap_page_provider provider, |
| void* provider_arg); |
| |
| /* NOTE: should_zero should have a consistent value for all calls to try_allocate for a given |
| cache. */ |
| PAS_API pas_allocation_result |
| pas_large_heap_physical_page_sharing_cache_try_allocate_with_alignment( |
| pas_large_heap_physical_page_sharing_cache* cache, |
| size_t size, |
| pas_alignment alignment, |
| bool should_zero); |
| |
| PAS_END_EXTERN_C; |
| |
| #endif /* PAS_LARGE_HEAP_PHYSICAL_PAGE_SHARING_CACHE_H */ |
| |