| /* |
| * 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. |
| */ |
| |
| #ifndef PAS_LOCAL_ALLOCATOR_SCAVENGER_DATA_H |
| #define PAS_LOCAL_ALLOCATOR_SCAVENGER_DATA_H |
| |
| #include "pas_local_allocator_kind.h" |
| #include "pas_lock.h" |
| |
| PAS_BEGIN_EXTERN_C; |
| |
| struct pas_local_allocator_scavenger_data; |
| typedef struct pas_local_allocator_scavenger_data pas_local_allocator_scavenger_data; |
| |
| /* This should just be 32-bit. */ |
| struct pas_local_allocator_scavenger_data { |
| bool is_in_use; |
| uint8_t should_stop_count; |
| bool dirty; |
| pas_local_allocator_kind kind : 8; |
| }; |
| |
| #define PAS_LOCAL_ALLOCATOR_SCAVENGER_DATA_INITIALIZER(passed_kind) \ |
| ((pas_local_allocator_scavenger_data){ \ |
| .is_in_use = false, \ |
| .should_stop_count = 0, \ |
| .dirty = false, \ |
| .kind = (passed_kind) \ |
| }) |
| |
| PAS_API extern uint8_t pas_local_allocator_should_stop_count_for_suspend; |
| |
| static inline void pas_local_allocator_scavenger_data_construct(pas_local_allocator_scavenger_data* data, |
| pas_local_allocator_kind kind) |
| { |
| *data = PAS_LOCAL_ALLOCATOR_SCAVENGER_DATA_INITIALIZER(kind); |
| } |
| |
| static inline void pas_local_allocator_scavenger_data_did_use_for_allocation( |
| pas_local_allocator_scavenger_data* data) |
| { |
| data->dirty = true; |
| data->should_stop_count = 0; |
| } |
| |
| PAS_API bool pas_local_allocator_scavenger_data_is_active(pas_local_allocator_scavenger_data* data); |
| |
| PAS_API bool pas_local_allocator_scavenger_data_stop( |
| pas_local_allocator_scavenger_data* data, |
| pas_lock_lock_mode page_lock_mode, |
| pas_lock_hold_mode heap_lock_hold_mode); |
| |
| PAS_END_EXTERN_C; |
| |
| #endif /* PAS_LOCAL_ALLOCATOR_SCAVENGER_DATA_H */ |
| |