| /* |
| * Copyright (C) 2007 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. |
| */ |
| |
| #ifndef ANDROID_IMEMORY_H |
| #define ANDROID_IMEMORY_H |
| |
| #include <stdint.h> |
| #include <sys/types.h> |
| #include <sys/mman.h> |
| |
| #include <utils/RefBase.h> |
| #include <utils/Errors.h> |
| #include <binder/IInterface.h> |
| |
| namespace android { |
| |
| // ---------------------------------------------------------------------------- |
| |
| class IMemoryHeap : public IInterface |
| { |
| public: |
| DECLARE_META_INTERFACE(MemoryHeap) |
| |
| // flags returned by getFlags() |
| enum { |
| READ_ONLY = 0x00000001 |
| }; |
| |
| virtual int getHeapID() const = 0; |
| virtual void* getBase() const = 0; |
| virtual size_t getSize() const = 0; |
| virtual uint32_t getFlags() const = 0; |
| virtual off_t getOffset() const = 0; |
| |
| // these are there just for backward source compatibility |
| int32_t heapID() const { return getHeapID(); } |
| void* base() const { return getBase(); } |
| size_t virtualSize() const { return getSize(); } |
| }; |
| |
| class BnMemoryHeap : public BnInterface<IMemoryHeap> |
| { |
| public: |
| // NOLINTNEXTLINE(google-default-arguments) |
| virtual status_t onTransact( |
| uint32_t code, |
| const Parcel& data, |
| Parcel* reply, |
| uint32_t flags = 0); |
| |
| BnMemoryHeap(); |
| protected: |
| virtual ~BnMemoryHeap(); |
| }; |
| |
| // ---------------------------------------------------------------------------- |
| |
| class IMemory : public IInterface |
| { |
| public: |
| DECLARE_META_INTERFACE(Memory) |
| |
| // NOLINTNEXTLINE(google-default-arguments) |
| virtual sp<IMemoryHeap> getMemory(ssize_t* offset=nullptr, size_t* size=nullptr) const = 0; |
| |
| void* unsecurePointer() const; |
| |
| // helpers |
| void* fastPointer(const sp<IBinder>& heap, ssize_t offset) const; |
| void* pointer() const; |
| size_t size() const; |
| ssize_t offset() const; |
| }; |
| |
| class BnMemory : public BnInterface<IMemory> |
| { |
| public: |
| // NOLINTNEXTLINE(google-default-arguments) |
| virtual status_t onTransact( |
| uint32_t code, |
| const Parcel& data, |
| Parcel* reply, |
| uint32_t flags = 0); |
| |
| BnMemory(); |
| protected: |
| virtual ~BnMemory(); |
| }; |
| |
| // ---------------------------------------------------------------------------- |
| |
| } // namespace android |
| |
| #endif // ANDROID_IMEMORY_H |