| /* |
| * Copyright (c) 2019 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. |
| */ |
| |
| #include "pas_config.h" |
| |
| #if LIBPAS_ENABLED |
| |
| #include "pas_compute_summary_object_callbacks.h" |
| |
| #include "pas_heap_lock.h" |
| #include "pas_heap_summary.h" |
| #include "pas_large_sharing_pool.h" |
| |
| bool pas_compute_summary_live_object_callback(uintptr_t begin, |
| uintptr_t end, |
| void* arg) |
| { |
| pas_heap_summary* summary_ptr; |
| pas_heap_summary my_summary; |
| |
| pas_heap_lock_assert_held(); |
| |
| summary_ptr = arg; |
| |
| my_summary = pas_large_sharing_pool_compute_summary( |
| pas_range_create(begin, end), |
| pas_large_sharing_pool_compute_summary_known_allocated, |
| pas_lock_is_held); |
| PAS_ASSERT(!my_summary.free); |
| PAS_ASSERT(my_summary.allocated == end - begin); |
| |
| *summary_ptr = pas_heap_summary_add(*summary_ptr, my_summary); |
| |
| return true; |
| } |
| |
| bool pas_compute_summary_live_object_callback_without_physical_sharing(uintptr_t begin, |
| uintptr_t end, |
| void* arg) |
| { |
| pas_heap_summary* summary_ptr; |
| pas_heap_summary my_summary; |
| |
| pas_heap_lock_assert_held(); |
| |
| summary_ptr = arg; |
| |
| my_summary = pas_heap_summary_create_empty(); |
| my_summary.allocated = end - begin; |
| my_summary.committed = end - begin; |
| |
| *summary_ptr = pas_heap_summary_add(*summary_ptr, my_summary); |
| |
| return true; |
| } |
| |
| bool (*pas_compute_summary_live_object_callback_for_config(pas_heap_config* config))( |
| uintptr_t begin, |
| uintptr_t end, |
| void* arg) |
| { |
| if (config->aligned_allocator_talks_to_sharing_pool) |
| return pas_compute_summary_live_object_callback; |
| return pas_compute_summary_live_object_callback_without_physical_sharing; |
| } |
| |
| bool pas_compute_summary_dead_object_callback(pas_large_free free, |
| void* arg) |
| { |
| pas_heap_summary* summary_ptr; |
| pas_heap_summary my_summary; |
| |
| pas_heap_lock_assert_held(); |
| |
| summary_ptr = arg; |
| |
| my_summary = pas_large_sharing_pool_compute_summary( |
| pas_range_create(free.begin, free.end), |
| pas_large_sharing_pool_compute_summary_known_free, |
| pas_lock_is_held); |
| PAS_ASSERT(!my_summary.allocated); |
| PAS_ASSERT(my_summary.free == free.end - free.begin); |
| |
| *summary_ptr = pas_heap_summary_add(*summary_ptr, my_summary); |
| |
| return true; |
| } |
| |
| bool pas_compute_summary_dead_object_callback_without_physical_sharing(pas_large_free free, |
| void* arg) |
| { |
| pas_heap_summary* summary_ptr; |
| pas_heap_summary my_summary; |
| |
| pas_heap_lock_assert_held(); |
| |
| summary_ptr = arg; |
| |
| my_summary = pas_heap_summary_create_empty(); |
| my_summary.free = free.end - free.begin; |
| my_summary.committed = free.end - free.begin; |
| my_summary.free_ineligible_for_decommit = free.end - free.begin; |
| |
| *summary_ptr = pas_heap_summary_add(*summary_ptr, my_summary); |
| |
| return true; |
| } |
| |
| bool (*pas_compute_summary_dead_object_callback_for_config(pas_heap_config* config))( |
| pas_large_free free, |
| void* arg) |
| { |
| if (config->aligned_allocator_talks_to_sharing_pool) |
| return pas_compute_summary_dead_object_callback; |
| return pas_compute_summary_dead_object_callback_without_physical_sharing; |
| } |
| |
| #endif /* LIBPAS_ENABLED */ |