summaryrefslogtreecommitdiffstats
path: root/otafault/ota_io.h
blob: 395b4230e5fac5a82ce45f31645cf0a4e36899c0 (plain) (blame)
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
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
/*
 * Copyright (C) 2015 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.
 */

/*
 * Provide a series of proxy functions for basic file accessors.
 * The behavior of these functions can be changed to return different
 * errors under a variety of conditions.
 */

#ifndef _UPDATER_OTA_IO_H_
#define _UPDATER_OTA_IO_H_

#include <stdio.h>
#include <sys/stat.h>

#include <memory>

#include <android-base/unique_fd.h>

#define OTAIO_CACHE_FNAME "/cache/saved.file"

void ota_set_fault_files();

int ota_open(const char* path, int oflags);

int ota_open(const char* path, int oflags, mode_t mode);

FILE* ota_fopen(const char* filename, const char* mode);

size_t ota_fread(void* ptr, size_t size, size_t nitems, FILE* stream);

ssize_t ota_read(int fd, void* buf, size_t nbyte);

size_t ota_fwrite(const void* ptr, size_t size, size_t count, FILE* stream);

ssize_t ota_write(int fd, const void* buf, size_t nbyte);

int ota_fsync(int fd);

struct OtaCloser {
  static void Close(int);
};

using unique_fd = android::base::unique_fd_impl<OtaCloser>;

int ota_close(unique_fd& fd);

struct OtaFcloser {
  void operator()(FILE*);
};

using unique_file = std::unique_ptr<FILE, OtaFcloser>;

int ota_fclose(unique_file& fh);

#endif