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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 "chrome/browser/chromeos/drive/local_file_reader.h" | 5 #include "chrome/browser/chromeos/drive/local_file_reader.h" |
6 | 6 |
7 #include <errno.h> | 7 #include <errno.h> |
8 | 8 |
9 #include "base/bind.h" | 9 #include "base/bind.h" |
10 #include "base/bind_helpers.h" | 10 #include "base/bind_helpers.h" |
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110 base::PlatformFile platform_file_; | 110 base::PlatformFile platform_file_; |
111 | 111 |
112 DISALLOW_COPY_AND_ASSIGN(ScopedPlatformFile); | 112 DISALLOW_COPY_AND_ASSIGN(ScopedPlatformFile); |
113 }; | 113 }; |
114 | 114 |
115 LocalFileReader::LocalFileReader( | 115 LocalFileReader::LocalFileReader( |
116 base::SequencedTaskRunner* sequenced_task_runner) | 116 base::SequencedTaskRunner* sequenced_task_runner) |
117 : sequenced_task_runner_(sequenced_task_runner), | 117 : sequenced_task_runner_(sequenced_task_runner), |
118 platform_file_(base::kInvalidPlatformFileValue), | 118 platform_file_(base::kInvalidPlatformFileValue), |
119 weak_ptr_factory_(this) { | 119 weak_ptr_factory_(this) { |
120 DCHECK(sequenced_task_runner_); | 120 DCHECK(sequenced_task_runner_.get()); |
121 } | 121 } |
122 | 122 |
123 LocalFileReader::~LocalFileReader() { | 123 LocalFileReader::~LocalFileReader() { |
124 PostCloseIfNeeded(sequenced_task_runner_.get(), platform_file_); | 124 PostCloseIfNeeded(sequenced_task_runner_.get(), platform_file_); |
125 } | 125 } |
126 | 126 |
127 void LocalFileReader::Open(const base::FilePath& file_path, | 127 void LocalFileReader::Open(const base::FilePath& file_path, |
128 int64 offset, | 128 int64 offset, |
129 const net::CompletionCallback& callback) { | 129 const net::CompletionCallback& callback) { |
130 DCHECK(!callback.is_null()); | 130 DCHECK(!callback.is_null()); |
131 DCHECK_EQ(base::kInvalidPlatformFileValue, platform_file_); | 131 DCHECK_EQ(base::kInvalidPlatformFileValue, platform_file_); |
132 | 132 |
133 ScopedPlatformFile* platform_file = | 133 ScopedPlatformFile* platform_file = |
134 new ScopedPlatformFile(sequenced_task_runner_); | 134 new ScopedPlatformFile(sequenced_task_runner_.get()); |
135 base::PostTaskAndReplyWithResult( | 135 base::PostTaskAndReplyWithResult( |
136 sequenced_task_runner_, | 136 sequenced_task_runner_.get(), |
137 FROM_HERE, | 137 FROM_HERE, |
138 base::Bind(&OpenAndSeekOnBlockingPool, | 138 base::Bind( |
139 file_path, offset, platform_file->ptr()), | 139 &OpenAndSeekOnBlockingPool, file_path, offset, platform_file->ptr()), |
140 base::Bind(&LocalFileReader::OpenAfterBlockingPoolTask, | 140 base::Bind(&LocalFileReader::OpenAfterBlockingPoolTask, |
141 weak_ptr_factory_.GetWeakPtr(), | 141 weak_ptr_factory_.GetWeakPtr(), |
142 callback, base::Owned(platform_file))); | 142 callback, |
| 143 base::Owned(platform_file))); |
143 } | 144 } |
144 | 145 |
145 void LocalFileReader::Read(net::IOBuffer* in_buffer, | 146 void LocalFileReader::Read(net::IOBuffer* in_buffer, |
146 int buffer_length, | 147 int buffer_length, |
147 const net::CompletionCallback& callback) { | 148 const net::CompletionCallback& callback) { |
148 DCHECK(!callback.is_null()); | 149 DCHECK(!callback.is_null()); |
149 DCHECK_NE(base::kInvalidPlatformFileValue, platform_file_); | 150 DCHECK_NE(base::kInvalidPlatformFileValue, platform_file_); |
150 | 151 |
151 scoped_refptr<net::IOBuffer> buffer(in_buffer); | 152 scoped_refptr<net::IOBuffer> buffer(in_buffer); |
152 base::PostTaskAndReplyWithResult( | 153 base::PostTaskAndReplyWithResult( |
153 sequenced_task_runner_, | 154 sequenced_task_runner_.get(), |
154 FROM_HERE, | 155 FROM_HERE, |
155 base::Bind(&ReadOnBlockingPool, platform_file_, buffer, buffer_length), | 156 base::Bind(&ReadOnBlockingPool, platform_file_, buffer, buffer_length), |
156 callback); | 157 callback); |
157 } | 158 } |
158 | 159 |
159 void LocalFileReader::OpenAfterBlockingPoolTask( | 160 void LocalFileReader::OpenAfterBlockingPoolTask( |
160 const net::CompletionCallback& callback, | 161 const net::CompletionCallback& callback, |
161 ScopedPlatformFile* platform_file, | 162 ScopedPlatformFile* platform_file, |
162 int open_result) { | 163 int open_result) { |
163 DCHECK(!callback.is_null()); | 164 DCHECK(!callback.is_null()); |
164 DCHECK(platform_file); | 165 DCHECK(platform_file); |
165 DCHECK_EQ(base::kInvalidPlatformFileValue, platform_file_); | 166 DCHECK_EQ(base::kInvalidPlatformFileValue, platform_file_); |
166 | 167 |
167 if (open_result == net::OK) { | 168 if (open_result == net::OK) { |
168 DCHECK_NE(base::kInvalidPlatformFileValue, *platform_file->ptr()); | 169 DCHECK_NE(base::kInvalidPlatformFileValue, *platform_file->ptr()); |
169 platform_file_ = platform_file->release(); | 170 platform_file_ = platform_file->release(); |
170 } | 171 } |
171 | 172 |
172 callback.Run(open_result); | 173 callback.Run(open_result); |
173 } | 174 } |
174 | 175 |
175 } // namespace util | 176 } // namespace util |
176 } // namespace drive | 177 } // namespace drive |
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