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https://gitee.com/openharmony/arkcompiler_ets_runtime
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2caf19f898
Change sharedmemorymanager filename to shared_mm https://gitee.com/openharmony/ark_js_runtime/issues/I52H3F Signed-off-by: zhaoduwei <zhaoduwei1@huawei.com>
118 lines
3.6 KiB
C++
118 lines
3.6 KiB
C++
/*
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* Copyright (c) 2022 Huawei Device Co., Ltd.
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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 "ecmascript/shared_mm/shared_mm.h"
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namespace panda::ecmascript {
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static constexpr size_t MALLOC_SIZE_LIMIT = 2147483648; // Max internal memory used by the VM declared in options
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JSSharedMemoryManager::~JSSharedMemoryManager()
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{
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os::memory::LockHolder lock(jsSharedMemoryLock_);
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auto iter = loadedJSSharedMemory_.begin();
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while (iter != loadedJSSharedMemory_.end()) {
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const void *pointer = ToVoidPtr(iter->first);
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FreeBuffer(const_cast<void *>(pointer));
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iter = loadedJSSharedMemory_.erase(iter);
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}
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}
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void JSSharedMemoryManager::CreateOrLoad(void **pointer, size_t size)
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{
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if (*pointer != nullptr) {
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if (loadedJSSharedMemory_.find((uint64_t)*pointer) != loadedJSSharedMemory_.end()) {
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IncreaseRefSharedMemory(*pointer);
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}
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return;
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}
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*pointer = AllocateBuffer(size);
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InsertSharedMemory(*pointer);
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}
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void JSSharedMemoryManager::InsertSharedMemory(const void *pointer)
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{
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os::memory::LockHolder lock(jsSharedMemoryLock_);
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if (loadedJSSharedMemory_.find((uint64_t)pointer) == loadedJSSharedMemory_.end()) {
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loadedJSSharedMemory_[(uint64_t)pointer] = 1;
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}
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}
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void JSSharedMemoryManager::IncreaseRefSharedMemory(const void *pointer)
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{
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os::memory::LockHolder lock(jsSharedMemoryLock_);
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if (loadedJSSharedMemory_.find((uint64_t)pointer) != loadedJSSharedMemory_.end()) {
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loadedJSSharedMemory_[(uint64_t)pointer]++;
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}
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}
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void JSSharedMemoryManager::DecreaseRefSharedMemory(const void *pointer)
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{
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os::memory::LockHolder lock(jsSharedMemoryLock_);
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auto iter = loadedJSSharedMemory_.find((uint64_t)pointer);
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if (iter != loadedJSSharedMemory_.end()) {
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if (iter->second > 1) {
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iter->second--;
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return;
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}
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loadedJSSharedMemory_.erase(iter);
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FreeBuffer(const_cast<void *>(pointer));
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}
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}
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void *JSSharedMemoryManager::AllocateBuffer(size_t size)
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{
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if (size == 0) {
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LOG_ECMA_MEM(FATAL) << "size must have a size bigger than 0";
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UNREACHABLE();
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}
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if (size >= MALLOC_SIZE_LIMIT) {
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LOG_ECMA_MEM(FATAL) << "size must be less than the maximum";
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UNREACHABLE();
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}
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// NOLINTNEXTLINE(cppcoreguidelines-no-malloc)
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void *ptr = malloc(size);
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if (ptr == nullptr) {
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LOG_ECMA_MEM(FATAL) << "malloc failed";
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UNREACHABLE();
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}
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#if ECMASCRIPT_ENABLE_ZAP_MEM
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if (memset_s(ptr, size, INVALID_VALUE, size) != EOK) {
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LOG_ECMA_MEM(FATAL) << "memset failed";
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UNREACHABLE();
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}
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#endif
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return ptr;
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}
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void JSSharedMemoryManager::FreeBuffer(void *mem)
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{
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if (mem == nullptr) {
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return;
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}
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// NOLINTNEXTLINE(cppcoreguidelines-no-malloc)
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free(mem);
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}
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void JSSharedMemoryManager::RemoveSharedMemory(void *pointer, void *data)
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{
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if (pointer == nullptr || data == nullptr) {
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return;
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}
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// dec ref in menorymanager
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JSSharedMemoryManager *jsSharedMemoryManager = static_cast<JSSharedMemoryManager *>(data);
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jsSharedMemoryManager->DecreaseRefSharedMemory(pointer);
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}
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} // namespace panda::ecmascript
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