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/*
* 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 <utils/IInterface.h>
namespace android {
// ----------------------------------------------------------------------------
class IMemoryHeap : public IInterface
{
public:
DECLARE_META_INTERFACE(MemoryHeap);
// flags returned by getFlags()
enum {
READ_ONLY = 0x00000001,
MAP_ONCE = 0x00000002
};
virtual int getHeapID() const = 0;
virtual void* getBase() const = 0;
virtual size_t getSize() const = 0;
virtual uint32_t getFlags() 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:
virtual status_t onTransact(
uint32_t code,
const Parcel& data,
Parcel* reply,
uint32_t flags = 0);
};
// ----------------------------------------------------------------------------
class IMemory : public IInterface
{
public:
DECLARE_META_INTERFACE(Memory);
virtual sp<IMemoryHeap> getMemory(ssize_t* offset=0, size_t* size=0) const = 0;
// 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:
virtual status_t onTransact(
uint32_t code,
const Parcel& data,
Parcel* reply,
uint32_t flags = 0);
};
// ----------------------------------------------------------------------------
}; // namespace android
#endif // ANDROID_IMEMORY_H
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