5728a92e29
The offset that is used in the creation of the MemoryHeapBase must be saved, so that it can be used to recreate the Heap when an IMemory object is passed across process boundary through the binder. Change-Id: Ie618fb5c0718e6711f55ed9235616fd801e648dc Signed-off-by: Anu Sundararajan <sanuradha@ti.com> Signed-off-by: Iliyan Malchev <malchev@google.com>
103 lines
2.6 KiB
C++
103 lines
2.6 KiB
C++
/*
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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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};
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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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