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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 "base/file_util.h" | 5 #include "base/file_util.h" |
| 6 | 6 |
| 7 #if defined(OS_WIN) | 7 #if defined(OS_WIN) |
| 8 #include <io.h> | 8 #include <io.h> |
| 9 #endif | 9 #endif |
| 10 #include <stdio.h> | 10 #include <stdio.h> |
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| 166 } | 166 } |
| 167 | 167 |
| 168 bool GetFileSize(const FilePath& file_path, int64* file_size) { | 168 bool GetFileSize(const FilePath& file_path, int64* file_size) { |
| 169 PlatformFileInfo info; | 169 PlatformFileInfo info; |
| 170 if (!GetFileInfo(file_path, &info)) | 170 if (!GetFileInfo(file_path, &info)) |
| 171 return false; | 171 return false; |
| 172 *file_size = info.size; | 172 *file_size = info.size; |
| 173 return true; | 173 return true; |
| 174 } | 174 } |
| 175 | 175 |
| 176 bool TouchFile(const FilePath& path, |
| 177 const Time& last_accessed, |
| 178 const Time& last_modified) { |
| 179 int flags = PLATFORM_FILE_OPEN | PLATFORM_FILE_WRITE_ATTRIBUTES; |
| 180 |
| 181 #if defined(OS_WIN) |
| 182 // On Windows, FILE_FLAG_BACKUP_SEMANTICS is needed to open a directory. |
| 183 if (DirectoryExists(path)) |
| 184 flags |= PLATFORM_FILE_BACKUP_SEMANTICS; |
| 185 #endif // OS_WIN |
| 186 |
| 187 const PlatformFile file = CreatePlatformFile(path, flags, NULL, NULL); |
| 188 if (file != kInvalidPlatformFileValue) { |
| 189 bool result = TouchPlatformFile(file, last_accessed, last_modified); |
| 190 ClosePlatformFile(file); |
| 191 return result; |
| 192 } |
| 193 |
| 194 return false; |
| 195 } |
| 196 |
| 176 } // namespace base | 197 } // namespace base |
| 177 | 198 |
| 178 // ----------------------------------------------------------------------------- | 199 // ----------------------------------------------------------------------------- |
| 179 | 200 |
| 180 namespace file_util { | 201 namespace file_util { |
| 181 | 202 |
| 182 using base::FileEnumerator; | 203 using base::FileEnumerator; |
| 183 using base::FilePath; | 204 using base::FilePath; |
| 184 using base::kMaxUniqueFiles; | 205 using base::kMaxUniqueFiles; |
| 185 | 206 |
| 186 bool TouchFile(const FilePath& path, | |
| 187 const base::Time& last_accessed, | |
| 188 const base::Time& last_modified) { | |
| 189 int flags = base::PLATFORM_FILE_OPEN | base::PLATFORM_FILE_WRITE_ATTRIBUTES; | |
| 190 | |
| 191 #if defined(OS_WIN) | |
| 192 // On Windows, FILE_FLAG_BACKUP_SEMANTICS is needed to open a directory. | |
| 193 if (DirectoryExists(path)) | |
| 194 flags |= base::PLATFORM_FILE_BACKUP_SEMANTICS; | |
| 195 #endif // OS_WIN | |
| 196 | |
| 197 const base::PlatformFile file = | |
| 198 base::CreatePlatformFile(path, flags, NULL, NULL); | |
| 199 if (file != base::kInvalidPlatformFileValue) { | |
| 200 bool result = base::TouchPlatformFile(file, last_accessed, last_modified); | |
| 201 base::ClosePlatformFile(file); | |
| 202 return result; | |
| 203 } | |
| 204 | |
| 205 return false; | |
| 206 } | |
| 207 | |
| 208 bool SetLastModifiedTime(const FilePath& path, | |
| 209 const base::Time& last_modified) { | |
| 210 return TouchFile(path, last_modified, last_modified); | |
| 211 } | |
| 212 | |
| 213 bool CloseFile(FILE* file) { | 207 bool CloseFile(FILE* file) { |
| 214 if (file == NULL) | 208 if (file == NULL) |
| 215 return true; | 209 return true; |
| 216 return fclose(file) == 0; | 210 return fclose(file) == 0; |
| 217 } | 211 } |
| 218 | 212 |
| 219 bool TruncateFile(FILE* file) { | 213 bool TruncateFile(FILE* file) { |
| 220 if (file == NULL) | 214 if (file == NULL) |
| 221 return false; | 215 return false; |
| 222 long current_offset = ftell(file); | 216 long current_offset = ftell(file); |
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| 250 if (!PathExists(new_path) && | 244 if (!PathExists(new_path) && |
| 251 (!have_suffix || !PathExists(FilePath(new_path.value() + suffix)))) { | 245 (!have_suffix || !PathExists(FilePath(new_path.value() + suffix)))) { |
| 252 return count; | 246 return count; |
| 253 } | 247 } |
| 254 } | 248 } |
| 255 | 249 |
| 256 return -1; | 250 return -1; |
| 257 } | 251 } |
| 258 | 252 |
| 259 } // namespace file_util | 253 } // namespace file_util |
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