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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "net/disk_cache/flash/storage.h" | 5 #include "net/disk_cache/flash/storage.h" |
6 | 6 |
7 #include <fcntl.h> | 7 #include <fcntl.h> |
8 | 8 |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 #include "base/platform_file.h" | |
11 #include "net/base/net_errors.h" | 10 #include "net/base/net_errors.h" |
12 #include "net/disk_cache/flash/format.h" | 11 #include "net/disk_cache/flash/format.h" |
13 | 12 |
14 namespace disk_cache { | 13 namespace disk_cache { |
15 | 14 |
16 Storage::Storage(const base::FilePath& path, | 15 Storage::Storage(const base::FilePath& path, |
17 int32 size) | 16 int32 size) |
18 : path_(path), size_(size) { | 17 : path_(path), size_(size) { |
19 COMPILE_ASSERT(kFlashPageSize % 2 == 0, invalid_page_size); | 18 COMPILE_ASSERT(kFlashPageSize % 2 == 0, invalid_page_size); |
20 COMPILE_ASSERT(kFlashBlockSize % kFlashPageSize == 0, invalid_block_size); | 19 COMPILE_ASSERT(kFlashBlockSize % kFlashPageSize == 0, invalid_block_size); |
21 DCHECK(size_ % kFlashBlockSize == 0); | 20 DCHECK(size_ % kFlashBlockSize == 0); |
22 } | 21 } |
23 | 22 |
24 bool Storage::Init() { | 23 bool Storage::Init() { |
25 int flags = base::PLATFORM_FILE_READ | | 24 int flags = base::File::FLAG_READ | |
26 base::PLATFORM_FILE_WRITE | | 25 base::File::FLAG_WRITE | |
27 base::PLATFORM_FILE_OPEN_ALWAYS; | 26 base::File::FLAG_OPEN_ALWAYS; |
28 | 27 |
29 file_ = base::CreatePlatformFile(path_, flags, NULL, NULL); | 28 file_.Initialize(path_, flags); |
30 if (file_ == base::kInvalidPlatformFileValue) | 29 if (!file_.IsValid()) |
31 return false; | 30 return false; |
32 | 31 |
33 // TODO(agayev): if file already exists, do some validation and return either | 32 // TODO(agayev): if file already exists, do some validation and return either |
34 // true or false based on the result. | 33 // true or false based on the result. |
35 | 34 |
36 #if defined(OS_LINUX) | 35 #if defined(OS_LINUX) |
37 fallocate(file_, 0, 0, size_); | 36 fallocate(file_.GetPlatformFile(), 0, 0, size_); |
38 #endif | 37 #endif |
39 | 38 |
40 return true; | 39 return true; |
41 } | 40 } |
42 | 41 |
43 Storage::~Storage() { | 42 Storage::~Storage() { |
44 base::ClosePlatformFile(file_); | |
45 } | 43 } |
46 | 44 |
47 bool Storage::Read(void* buffer, int32 size, int32 offset) { | 45 bool Storage::Read(void* buffer, int32 size, int32 offset) { |
48 DCHECK(offset >= 0 && offset + size <= size_); | 46 DCHECK(offset >= 0 && offset + size <= size_); |
49 | 47 |
50 int rv = base::ReadPlatformFile(file_, offset, static_cast<char*>(buffer), | 48 int rv = file_.Read(offset, static_cast<char*>(buffer), size); |
51 size); | |
52 return rv == size; | 49 return rv == size; |
53 } | 50 } |
54 | 51 |
55 bool Storage::Write(const void* buffer, int32 size, int32 offset) { | 52 bool Storage::Write(const void* buffer, int32 size, int32 offset) { |
56 DCHECK(offset >= 0 && offset + size <= size_); | 53 DCHECK(offset >= 0 && offset + size <= size_); |
57 | 54 |
58 int rv = base::WritePlatformFile(file_, offset, | 55 int rv = file_.Write(offset, static_cast<const char*>(buffer), size); |
59 static_cast<const char*>(buffer), size); | |
60 return rv == size; | 56 return rv == size; |
61 } | 57 } |
62 | 58 |
63 } // namespace disk_cache | 59 } // namespace disk_cache |
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