blob: d41e93f0e3256257d86108549da212b45a91051f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
// Copyright (C) 2020 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 IORAP_SRC_INODE2FILENAME_OUT_OF_PROCESS_INDOE_RESOLVER_H_
#define IORAP_SRC_INODE2FILENAME_OUT_OF_PROCESS_INDOE_RESOLVER_H_
#include "common/expected.h"
#include "inode2filename/inode_resolver.h"
namespace iorap::inode2filename {
// Create an InodeResolver that fork+exec+pipes into the binary 'iorap.inode2filename'
// and transmits the results back via an IPC mechanism.
//
// This is instantiated by InodeResolver::Create + ProcessMode::kOutOfProcessIpc
class OutOfProcessInodeResolver : public InodeResolver {
public:
virtual rxcpp::observable<InodeResult>
FindFilenamesFromInodes(std::vector<Inode> inodes) const override;
virtual rxcpp::observable<InodeResult>
EmitAll() const override;
OutOfProcessInodeResolver(InodeResolverDependencies dependencies);
~OutOfProcessInodeResolver();
private:
struct Impl;
Impl* impl_;
};
// Reads one line data from the stream.
// Each line is in the format of "<4 bytes line length><state> <inode info> <file path>"
// The <4 bytes line length> is the length rest data of "<state> <inode info> <file path>".
// The return string is "<state> <inode info> <file path>".
// For example: for "<size>K 253:9:6 ./test", the return value is
// "K 253:9:6 ./test". The <size> is encoded in the first 4 bytes.
// Note: there is no newline in the end of each line and the line shouldn't be
// empty unless there is some error.
std::string ReadOneLine(FILE* stream, bool* eof);
}
#endif // IORAP_SRC_INODE2FILENAME_OUT_OF_PROCESS_INDOE_RESOLVER_H_
|
