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73 lines
2.3 KiB
73 lines
2.3 KiB
/* |
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* Copyright (C) 2017 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#include "chre/platform/memory_manager.h" |
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#include "chre/util/system/debug_dump.h" |
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namespace chre { |
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void *MemoryManager::nanoappAlloc(Nanoapp *app, uint32_t bytes) { |
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AllocHeader *header = nullptr; |
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if (bytes > 0) { |
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if (mAllocationCount >= kMaxAllocationCount) { |
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LOGE("Failed to allocate memory from Nanoapp ID %" PRIu32 |
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": allocation count exceeded limit.", app->getInstanceId()); |
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} else if ((mTotalAllocatedBytes + bytes) > kMaxAllocationBytes) { |
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LOGE("Failed to allocate memory from Nanoapp ID %" PRIu32 |
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": not enough space.", app->getInstanceId()); |
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} else { |
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header = static_cast<AllocHeader*>( |
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doAlloc(app, sizeof(AllocHeader) + bytes)); |
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if (header != nullptr) { |
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mTotalAllocatedBytes += bytes; |
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mAllocationCount++; |
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header->data.bytes = bytes; |
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header->data.instanceId = app->getInstanceId(); |
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header++; |
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} |
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} |
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} |
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return header; |
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} |
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void MemoryManager::nanoappFree(Nanoapp *app, void *ptr) { |
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if (ptr != nullptr) { |
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AllocHeader *header = static_cast<AllocHeader*>(ptr); |
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header--; |
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if (mTotalAllocatedBytes >= header->data.bytes) { |
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mTotalAllocatedBytes -= header->data.bytes; |
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} else { |
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mTotalAllocatedBytes = 0; |
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} |
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if (mAllocationCount > 0) { |
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mAllocationCount--; |
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} |
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doFree(app, header); |
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} |
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} |
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bool MemoryManager::logStateToBuffer(char *buffer, size_t *bufferPos, |
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size_t bufferSize) const { |
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return debugDumpPrint(buffer, bufferPos, bufferSize, |
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"\nNanoapp heap usage: %zu bytes allocated, count %zu\n", |
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getTotalAllocatedBytes(), getAllocationCount()); |
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} |
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} // namespace chre
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