| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "chre/platform/memory.h" |
| #include "chre/platform/slpi/memory.h" |
| |
| #ifdef CHRE_SLPI_SEE |
| #include "chre/platform/slpi/see/island_vote_client.h" |
| #endif |
| |
| #include <cstdlib> |
| |
| extern "C" { |
| |
| #ifdef CHRE_SLPI_UIMG_ENABLED |
| #include "sns_island_util.h" |
| #include "sns_memmgr.h" |
| #endif // CHRE_SLPI_UIMG_ENABLED |
| |
| } // extern "C" |
| |
| namespace chre { |
| |
| void *memoryAlloc(size_t size) { |
| #ifdef CHRE_SLPI_UIMG_ENABLED |
| void *ptr = sns_malloc(SNS_HEAP_CHRE_ISLAND, size); |
| |
| // Fall back to big image memory when uimg memory is exhausted. |
| // Must exclude size 0 as clients may not explicitly free memory of size 0, |
| // which may mistakenly hold the system in big image. |
| if (ptr == nullptr && size != 0) { |
| // Increment big image ref count to prevent system from entering uimg |
| // while big image memory is in use. |
| IslandVoteClientSingleton::get()->incrementBigImageRefCount(); |
| ptr = memoryAllocBigImage(size); |
| |
| // Big image allocation failed too. |
| if (ptr == nullptr) { |
| IslandVoteClientSingleton::get()->decrementBigImageRefCount(); |
| } |
| } |
| |
| return ptr; |
| #else |
| return malloc(size); |
| #endif // CHRE_SLPI_UIMG_ENABLED |
| } |
| |
| void *memoryAllocBigImage(size_t size) { |
| return malloc(size); |
| } |
| |
| void *palSystemApiMemoryAlloc(size_t size) { |
| return malloc(size); |
| } |
| |
| void memoryFree(void *pointer) { |
| #ifdef CHRE_SLPI_UIMG_ENABLED |
| if (sns_island_is_island_ptr(reinterpret_cast<intptr_t>(pointer))) { |
| sns_free(pointer); |
| } else { |
| memoryFreeBigImage(pointer); |
| |
| // Must exclude nullptr as it's excluded in memoryAlloc() as well. |
| // Note currently sns_island_is_island_ptr returns true for nullptr, |
| // so this mainly serves as a protection in case the implementation of |
| // sns_island_is_island_ptr changes in the future. |
| if (pointer != nullptr) { |
| IslandVoteClientSingleton::get()->decrementBigImageRefCount(); |
| } |
| } |
| #else |
| free(pointer); |
| #endif // CHRE_SLPI_UIMG_ENABLED |
| } |
| |
| void memoryFreeBigImage(void *pointer) { |
| free(pointer); |
| } |
| |
| void palSystemApiMemoryFree(void *pointer) { |
| free(pointer); |
| } |
| |
| } // namespace chre |