1 /*
2  * Copyright (C) 2014 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 #pragma once
18 
19 #include <stdint.h>
20 
21 #include "fuse_provider.h"
22 
23 // This class reads data from adb server.
24 class FuseAdbDataProvider : public FuseDataProvider {
25  public:
FuseAdbDataProvider(int fd,uint64_t file_size,uint32_t block_size)26   FuseAdbDataProvider(int fd, uint64_t file_size, uint32_t block_size)
27       : FuseDataProvider(file_size, block_size), fd_(fd) {}
28 
29   bool ReadBlockAlignedData(uint8_t* buffer, uint32_t fetch_size,
30                             uint32_t start_block) const override;
31 
Valid()32   bool Valid() const override {
33     return fd_ != -1;
34   }
35 
36  private:
37   // The underlying source to read data from (i.e. the one that talks to the host).
38   int fd_;
39 };
40