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1 // Copyright (c) 2006-2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2010 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/file.h" | 5 #include "net/disk_cache/file.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/threading/worker_pool.h" | 10 #include "base/threading/worker_pool.h" |
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182 platform_file_ = base::CreatePlatformFile(name, flags, NULL, NULL); | 182 platform_file_ = base::CreatePlatformFile(name, flags, NULL, NULL); |
183 if (platform_file_ < 0) { | 183 if (platform_file_ < 0) { |
184 platform_file_ = 0; | 184 platform_file_ = 0; |
185 return false; | 185 return false; |
186 } | 186 } |
187 | 187 |
188 init_ = true; | 188 init_ = true; |
189 return true; | 189 return true; |
190 } | 190 } |
191 | 191 |
192 File::~File() { | |
193 if (platform_file_) | |
194 close(platform_file_); | |
195 } | |
196 | |
197 base::PlatformFile File::platform_file() const { | 192 base::PlatformFile File::platform_file() const { |
198 return platform_file_; | 193 return platform_file_; |
199 } | 194 } |
200 | 195 |
201 bool File::IsValid() const { | 196 bool File::IsValid() const { |
202 if (!init_) | 197 if (!init_) |
203 return false; | 198 return false; |
204 return (base::kInvalidPlatformFileValue != platform_file_); | 199 return (base::kInvalidPlatformFileValue != platform_file_); |
205 } | 200 } |
206 | 201 |
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248 DCHECK(init_); | 243 DCHECK(init_); |
249 if (!callback) { | 244 if (!callback) { |
250 if (completed) | 245 if (completed) |
251 *completed = true; | 246 *completed = true; |
252 return Write(buffer, buffer_len, offset); | 247 return Write(buffer, buffer_len, offset); |
253 } | 248 } |
254 | 249 |
255 return AsyncWrite(buffer, buffer_len, offset, callback, completed); | 250 return AsyncWrite(buffer, buffer_len, offset, callback, completed); |
256 } | 251 } |
257 | 252 |
258 bool File::AsyncWrite(const void* buffer, size_t buffer_len, size_t offset, | |
259 FileIOCallback* callback, bool* completed) { | |
260 DCHECK(init_); | |
261 if (buffer_len > ULONG_MAX || offset > ULONG_MAX) | |
262 return false; | |
263 | |
264 GetFileInFlightIO()->PostWrite(this, buffer, buffer_len, offset, callback); | |
265 | |
266 if (completed) | |
267 *completed = false; | |
268 return true; | |
269 } | |
270 | |
271 bool File::SetLength(size_t length) { | 253 bool File::SetLength(size_t length) { |
272 DCHECK(init_); | 254 DCHECK(init_); |
273 if (length > ULONG_MAX) | 255 if (length > ULONG_MAX) |
274 return false; | 256 return false; |
275 | 257 |
276 return 0 == ftruncate(platform_file_, length); | 258 return 0 == ftruncate(platform_file_, length); |
277 } | 259 } |
278 | 260 |
279 size_t File::GetLength() { | 261 size_t File::GetLength() { |
280 DCHECK(init_); | 262 DCHECK(init_); |
281 size_t ret = lseek(platform_file_, 0, SEEK_END); | 263 size_t ret = lseek(platform_file_, 0, SEEK_END); |
282 return ret; | 264 return ret; |
283 } | 265 } |
284 | 266 |
285 // Static. | 267 // Static. |
286 void File::WaitForPendingIO(int* num_pending_io) { | 268 void File::WaitForPendingIO(int* num_pending_io) { |
287 // We may be running unit tests so we should allow be able to reset the | 269 // We may be running unit tests so we should allow be able to reset the |
288 // message loop. | 270 // message loop. |
289 GetFileInFlightIO()->WaitForPendingIO(); | 271 GetFileInFlightIO()->WaitForPendingIO(); |
290 DeleteFileInFlightIO(); | 272 DeleteFileInFlightIO(); |
291 } | 273 } |
292 | 274 |
| 275 File::~File() { |
| 276 if (platform_file_) |
| 277 close(platform_file_); |
| 278 } |
| 279 |
| 280 bool File::AsyncWrite(const void* buffer, size_t buffer_len, size_t offset, |
| 281 FileIOCallback* callback, bool* completed) { |
| 282 DCHECK(init_); |
| 283 if (buffer_len > ULONG_MAX || offset > ULONG_MAX) |
| 284 return false; |
| 285 |
| 286 GetFileInFlightIO()->PostWrite(this, buffer, buffer_len, offset, callback); |
| 287 |
| 288 if (completed) |
| 289 *completed = false; |
| 290 return true; |
| 291 } |
| 292 |
293 } // namespace disk_cache | 293 } // namespace disk_cache |
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