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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/blockfile/file.h" | 5 #include "net/disk_cache/blockfile/file.h" |
| 6 | 6 |
| 7 #include "base/bind.h" | 7 #include "base/bind.h" |
| 8 #include "base/lazy_instance.h" | 8 #include "base/lazy_instance.h" |
| 9 #include "base/location.h" | 9 #include "base/location.h" |
| 10 #include "base/logging.h" | 10 #include "base/logging.h" |
| (...skipping 17 matching lines...) Expand all Loading... |
| 28 }; | 28 }; |
| 29 | 29 |
| 30 base::LazyInstance<FileWorkerPool>::Leaky s_worker_pool = | 30 base::LazyInstance<FileWorkerPool>::Leaky s_worker_pool = |
| 31 LAZY_INSTANCE_INITIALIZER; | 31 LAZY_INSTANCE_INITIALIZER; |
| 32 | 32 |
| 33 } // namespace | 33 } // namespace |
| 34 | 34 |
| 35 namespace disk_cache { | 35 namespace disk_cache { |
| 36 | 36 |
| 37 File::File(base::File file) | 37 File::File(base::File file) |
| 38 : init_(true), | 38 : init_(true), mixed_(true), base_file_(file.Pass()) { |
| 39 mixed_(true), | |
| 40 base_file_(file.Pass()) { | |
| 41 } | 39 } |
| 42 | 40 |
| 43 bool File::Init(const base::FilePath& name) { | 41 bool File::Init(const base::FilePath& name) { |
| 44 if (base_file_.IsValid()) | 42 if (base_file_.IsValid()) |
| 45 return false; | 43 return false; |
| 46 | 44 |
| 47 int flags = base::File::FLAG_OPEN | base::File::FLAG_READ | | 45 int flags = |
| 48 base::File::FLAG_WRITE; | 46 base::File::FLAG_OPEN | base::File::FLAG_READ | base::File::FLAG_WRITE; |
| 49 base_file_.Initialize(name, flags); | 47 base_file_.Initialize(name, flags); |
| 50 return base_file_.IsValid(); | 48 return base_file_.IsValid(); |
| 51 } | 49 } |
| 52 | 50 |
| 53 bool File::IsValid() const { | 51 bool File::IsValid() const { |
| 54 return base_file_.IsValid(); | 52 return base_file_.IsValid(); |
| 55 } | 53 } |
| 56 | 54 |
| 57 bool File::Read(void* buffer, size_t buffer_len, size_t offset) { | 55 bool File::Read(void* buffer, size_t buffer_len, size_t offset) { |
| 58 DCHECK(base_file_.IsValid()); | 56 DCHECK(base_file_.IsValid()); |
| 59 if (buffer_len > static_cast<size_t>(kint32max) || | 57 if (buffer_len > static_cast<size_t>(kint32max) || |
| 60 offset > static_cast<size_t>(kint32max)) { | 58 offset > static_cast<size_t>(kint32max)) { |
| 61 return false; | 59 return false; |
| 62 } | 60 } |
| 63 | 61 |
| 64 int ret = base_file_.Read(offset, static_cast<char*>(buffer), buffer_len); | 62 int ret = base_file_.Read(offset, static_cast<char*>(buffer), buffer_len); |
| 65 return (static_cast<size_t>(ret) == buffer_len); | 63 return (static_cast<size_t>(ret) == buffer_len); |
| 66 } | 64 } |
| 67 | 65 |
| 68 bool File::Write(const void* buffer, size_t buffer_len, size_t offset) { | 66 bool File::Write(const void* buffer, size_t buffer_len, size_t offset) { |
| 69 DCHECK(base_file_.IsValid()); | 67 DCHECK(base_file_.IsValid()); |
| 70 if (buffer_len > static_cast<size_t>(kint32max) || | 68 if (buffer_len > static_cast<size_t>(kint32max) || |
| 71 offset > static_cast<size_t>(kint32max)) { | 69 offset > static_cast<size_t>(kint32max)) { |
| 72 return false; | 70 return false; |
| 73 } | 71 } |
| 74 | 72 |
| 75 int ret = base_file_.Write(offset, static_cast<const char*>(buffer), | 73 int ret = |
| 76 buffer_len); | 74 base_file_.Write(offset, static_cast<const char*>(buffer), buffer_len); |
| 77 return (static_cast<size_t>(ret) == buffer_len); | 75 return (static_cast<size_t>(ret) == buffer_len); |
| 78 } | 76 } |
| 79 | 77 |
| 80 bool File::Read(void* buffer, size_t buffer_len, size_t offset, | 78 bool File::Read(void* buffer, |
| 81 FileIOCallback* callback, bool* completed) { | 79 size_t buffer_len, |
| 80 size_t offset, |
| 81 FileIOCallback* callback, |
| 82 bool* completed) { |
| 82 DCHECK(base_file_.IsValid()); | 83 DCHECK(base_file_.IsValid()); |
| 83 if (!callback) { | 84 if (!callback) { |
| 84 if (completed) | 85 if (completed) |
| 85 *completed = true; | 86 *completed = true; |
| 86 return Read(buffer, buffer_len, offset); | 87 return Read(buffer, buffer_len, offset); |
| 87 } | 88 } |
| 88 | 89 |
| 89 if (buffer_len > static_cast<size_t>(kint32max) || | 90 if (buffer_len > static_cast<size_t>(kint32max) || |
| 90 offset > static_cast<size_t>(kint32max)) { | 91 offset > static_cast<size_t>(kint32max)) { |
| 91 return false; | 92 return false; |
| 92 } | 93 } |
| 93 | 94 |
| 94 base::PostTaskAndReplyWithResult( | 95 base::PostTaskAndReplyWithResult( |
| 95 s_worker_pool.Pointer(), FROM_HERE, | 96 s_worker_pool.Pointer(), |
| 97 FROM_HERE, |
| 96 base::Bind(&File::DoRead, this, buffer, buffer_len, offset), | 98 base::Bind(&File::DoRead, this, buffer, buffer_len, offset), |
| 97 base::Bind(&File::OnOperationComplete, this, callback)); | 99 base::Bind(&File::OnOperationComplete, this, callback)); |
| 98 | 100 |
| 99 *completed = false; | 101 *completed = false; |
| 100 return true; | 102 return true; |
| 101 } | 103 } |
| 102 | 104 |
| 103 bool File::Write(const void* buffer, size_t buffer_len, size_t offset, | 105 bool File::Write(const void* buffer, |
| 104 FileIOCallback* callback, bool* completed) { | 106 size_t buffer_len, |
| 107 size_t offset, |
| 108 FileIOCallback* callback, |
| 109 bool* completed) { |
| 105 DCHECK(base_file_.IsValid()); | 110 DCHECK(base_file_.IsValid()); |
| 106 if (!callback) { | 111 if (!callback) { |
| 107 if (completed) | 112 if (completed) |
| 108 *completed = true; | 113 *completed = true; |
| 109 return Write(buffer, buffer_len, offset); | 114 return Write(buffer, buffer_len, offset); |
| 110 } | 115 } |
| 111 | 116 |
| 112 if (buffer_len > static_cast<size_t>(kint32max) || | 117 if (buffer_len > static_cast<size_t>(kint32max) || |
| 113 offset > static_cast<size_t>(kint32max)) { | 118 offset > static_cast<size_t>(kint32max)) { |
| 114 return false; | 119 return false; |
| 115 } | 120 } |
| 116 | 121 |
| 117 base::PostTaskAndReplyWithResult( | 122 base::PostTaskAndReplyWithResult( |
| 118 s_worker_pool.Pointer(), FROM_HERE, | 123 s_worker_pool.Pointer(), |
| 124 FROM_HERE, |
| 119 base::Bind(&File::DoWrite, this, buffer, buffer_len, offset), | 125 base::Bind(&File::DoWrite, this, buffer, buffer_len, offset), |
| 120 base::Bind(&File::OnOperationComplete, this, callback)); | 126 base::Bind(&File::OnOperationComplete, this, callback)); |
| 121 | 127 |
| 122 *completed = false; | 128 *completed = false; |
| 123 return true; | 129 return true; |
| 124 } | 130 } |
| 125 | 131 |
| 126 bool File::SetLength(size_t length) { | 132 bool File::SetLength(size_t length) { |
| 127 DCHECK(base_file_.IsValid()); | 133 DCHECK(base_file_.IsValid()); |
| 128 if (length > kuint32max) | 134 if (length > kuint32max) |
| (...skipping 18 matching lines...) Expand all Loading... |
| 147 // worker pool only waits for tasks on the worker pool, not the "Reply" tasks | 153 // worker pool only waits for tasks on the worker pool, not the "Reply" tasks |
| 148 // so we have to let the current message loop to run. | 154 // so we have to let the current message loop to run. |
| 149 s_worker_pool.Get().FlushForTesting(); | 155 s_worker_pool.Get().FlushForTesting(); |
| 150 base::RunLoop().RunUntilIdle(); | 156 base::RunLoop().RunUntilIdle(); |
| 151 } | 157 } |
| 152 | 158 |
| 153 // Static. | 159 // Static. |
| 154 void File::DropPendingIO() { | 160 void File::DropPendingIO() { |
| 155 } | 161 } |
| 156 | 162 |
| 157 | |
| 158 File::~File() { | 163 File::~File() { |
| 159 } | 164 } |
| 160 | 165 |
| 161 base::PlatformFile File::platform_file() const { | 166 base::PlatformFile File::platform_file() const { |
| 162 return base_file_.GetPlatformFile(); | 167 return base_file_.GetPlatformFile(); |
| 163 } | 168 } |
| 164 | 169 |
| 165 // Runs on a worker thread. | 170 // Runs on a worker thread. |
| 166 int File::DoRead(void* buffer, size_t buffer_len, size_t offset) { | 171 int File::DoRead(void* buffer, size_t buffer_len, size_t offset) { |
| 167 if (Read(const_cast<void*>(buffer), buffer_len, offset)) | 172 if (Read(const_cast<void*>(buffer), buffer_len, offset)) |
| (...skipping 10 matching lines...) Expand all Loading... |
| 178 return net::ERR_CACHE_WRITE_FAILURE; | 183 return net::ERR_CACHE_WRITE_FAILURE; |
| 179 } | 184 } |
| 180 | 185 |
| 181 // This method actually makes sure that the last reference to the file doesn't | 186 // This method actually makes sure that the last reference to the file doesn't |
| 182 // go away on the worker pool. | 187 // go away on the worker pool. |
| 183 void File::OnOperationComplete(FileIOCallback* callback, int result) { | 188 void File::OnOperationComplete(FileIOCallback* callback, int result) { |
| 184 callback->OnFileIOComplete(result); | 189 callback->OnFileIOComplete(result); |
| 185 } | 190 } |
| 186 | 191 |
| 187 } // namespace disk_cache | 192 } // namespace disk_cache |
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