MemoryDealer.h revision 6546f2e45861172af83b0c1e6432cae24e97d4cc 
1/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ANDROID_MEMORY_DEALER_H
18#define ANDROID_MEMORY_DEALER_H
19
20
21#include <stdint.h>
22#include <sys/types.h>
23
24#include <binder/IMemory.h>
25#include <binder/MemoryHeapBase.h>
26
27namespace android {
28// ----------------------------------------------------------------------------
29
30class SimpleBestFitAllocator;
31
32// ----------------------------------------------------------------------------
33
34class MemoryDealer : public RefBase
35{
36public:
37    MemoryDealer(size_t size, const char* name = 0,
38            uint32_t flags = 0 /* or bits such as MemoryHeapBase::READ_ONLY */ );
39
40    virtual sp<IMemory> allocate(size_t size);
41    virtual void        deallocate(size_t offset);
42    virtual void        dump(const char* what) const;
43
44    sp<IMemoryHeap> getMemoryHeap() const { return heap(); }
45
46protected:
47    virtual ~MemoryDealer();
48
49private:
50    const sp<IMemoryHeap>&      heap() const;
51    SimpleBestFitAllocator*     allocator() const;
52
53    sp<IMemoryHeap>             mHeap;
54    SimpleBestFitAllocator*     mAllocator;
55};
56
57
58// ----------------------------------------------------------------------------
59}; // namespace android
60
61#endif // ANDROID_MEMORY_DEALER_H
62