| /* |
| * Copyright (c) 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. |
| */ |
| |
| #include "pas_config.h" |
| |
| #if LIBPAS_ENABLED |
| |
| #include "pas_debug_spectrum.h" |
| |
| #include "pas_heap_lock.h" |
| #include "pas_immortal_heap.h" |
| #include "pas_large_utility_free_heap.h" |
| #include "pas_stream.h" |
| |
| pas_ptr_hash_map pas_debug_spectrum = PAS_HASHTABLE_INITIALIZER; |
| |
| void pas_debug_spectrum_add( |
| void* key, pas_debug_spectrum_dump_key dump, uint64_t count) |
| { |
| pas_ptr_hash_map_add_result add_result; |
| pas_debug_spectrum_entry* entry; |
| |
| pas_heap_lock_assert_held(); |
| |
| add_result = pas_ptr_hash_map_add( |
| &pas_debug_spectrum, key, NULL, &pas_large_utility_free_heap_allocation_config); |
| |
| if (add_result.is_new_entry) { |
| entry = pas_immortal_heap_allocate( |
| sizeof(pas_debug_spectrum_entry), |
| "pas_debug_spectrum_entry", |
| pas_object_allocation); |
| entry->dump = dump; |
| entry->count = count; |
| add_result.entry->key = key; |
| add_result.entry->value = entry; |
| return; |
| } |
| |
| entry = add_result.entry->value; |
| |
| PAS_ASSERT(entry->dump == dump); |
| entry->count += count; |
| } |
| |
| void pas_debug_spectrum_dump(pas_stream* stream) |
| { |
| unsigned index; |
| |
| pas_heap_lock_assert_held(); |
| |
| for (index = 0; index < pas_debug_spectrum.table_size; ++index) { |
| pas_ptr_hash_map_entry hash_entry; |
| pas_debug_spectrum_entry* entry; |
| |
| hash_entry = pas_debug_spectrum.table[index]; |
| if (pas_ptr_hash_map_entry_is_empty_or_deleted(hash_entry)) |
| continue; |
| |
| entry = hash_entry.value; |
| |
| if (!entry->count) |
| continue; |
| |
| entry->dump(stream, hash_entry.key); |
| pas_stream_printf(stream, ": %llu\n", entry->count); |
| } |
| } |
| |
| void pas_debug_spectrum_reset(void) |
| { |
| unsigned index; |
| |
| pas_heap_lock_assert_held(); |
| |
| for (index = 0; index < pas_debug_spectrum.table_size; ++index) { |
| pas_ptr_hash_map_entry hash_entry; |
| pas_debug_spectrum_entry* entry; |
| |
| hash_entry = pas_debug_spectrum.table[index]; |
| if (pas_ptr_hash_map_entry_is_empty_or_deleted(hash_entry)) |
| continue; |
| |
| entry = hash_entry.value; |
| entry->count = 0; |
| } |
| } |
| |
| #endif /* LIBPAS_ENABLED */ |