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108 lines
2.7 KiB
108 lines
2.7 KiB
6 years ago
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/*
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* Copyright (C) 2007 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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#ifndef ANDROID_IMEMORY_H
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#define ANDROID_IMEMORY_H
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#include <stdint.h>
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#include <sys/types.h>
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#include <sys/mman.h>
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#include <utils/RefBase.h>
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#include <utils/Errors.h>
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#include <binder/IInterface.h>
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namespace android {
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// ----------------------------------------------------------------------------
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class IMemoryHeap : public IInterface
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{
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public:
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DECLARE_META_INTERFACE(MemoryHeap);
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// flags returned by getFlags()
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enum {
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READ_ONLY = 0x00000001,
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#ifdef USE_MEMORY_HEAP_ION
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USE_ION_FD = 0x00008000
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#else
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USE_ION_FD = 0x00000008
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#endif
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};
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virtual int getHeapID() const = 0;
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virtual void* getBase() const = 0;
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virtual size_t getSize() const = 0;
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virtual uint32_t getFlags() const = 0;
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virtual uint32_t getOffset() const = 0;
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// these are there just for backward source compatibility
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int32_t heapID() const { return getHeapID(); }
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void* base() const { return getBase(); }
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size_t virtualSize() const { return getSize(); }
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};
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class BnMemoryHeap : public BnInterface<IMemoryHeap>
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{
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public:
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virtual status_t onTransact(
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uint32_t code,
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const Parcel& data,
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Parcel* reply,
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uint32_t flags = 0);
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BnMemoryHeap();
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protected:
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virtual ~BnMemoryHeap();
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};
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// ----------------------------------------------------------------------------
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class IMemory : public IInterface
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{
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public:
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DECLARE_META_INTERFACE(Memory);
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virtual sp<IMemoryHeap> getMemory(ssize_t* offset=0, size_t* size=0) const = 0;
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// helpers
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void* fastPointer(const sp<IBinder>& heap, ssize_t offset) const;
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void* pointer() const;
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size_t size() const;
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ssize_t offset() const;
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};
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class BnMemory : public BnInterface<IMemory>
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{
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public:
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virtual status_t onTransact(
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uint32_t code,
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const Parcel& data,
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Parcel* reply,
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uint32_t flags = 0);
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BnMemory();
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protected:
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virtual ~BnMemory();
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};
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// ----------------------------------------------------------------------------
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}; // namespace android
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#endif // ANDROID_IMEMORY_H
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