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/*
* 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" {
#include "sns_island_util.h"
#include "sns_memmgr.h"
} // 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
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