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Issue 61633003: Fix large-file support for mac os x. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 7 years, 1 month ago
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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 #include "platform/globals.h" 5 #include "platform/globals.h"
6 #if defined(TARGET_OS_MACOS) 6 #if defined(TARGET_OS_MACOS)
7 7
8 #include "bin/directory.h" 8 #include "bin/directory.h"
9 9
10 #include <dirent.h> // NOLINT 10 #include <dirent.h> // NOLINT
(...skipping 111 matching lines...) Expand 10 before | Expand all | Expand 10 after
122 if (!listing->follow_links()) { 122 if (!listing->follow_links()) {
123 return kListLink; 123 return kListLink;
124 } 124 }
125 // Else fall through to next case. 125 // Else fall through to next case.
126 // Fall through. 126 // Fall through.
127 case DT_UNKNOWN: { 127 case DT_UNKNOWN: {
128 // On some file systems the entry type is not determined by 128 // On some file systems the entry type is not determined by
129 // readdir_r. For those and for links we use stat to determine 129 // readdir_r. For those and for links we use stat to determine
130 // the actual entry type. Notice that stat returns the type of 130 // the actual entry type. Notice that stat returns the type of
131 // the file pointed to. 131 // the file pointed to.
132 struct stat64 entry_info; 132 struct stat entry_info;
133 int stat_success; 133 int stat_success;
134 stat_success = TEMP_FAILURE_RETRY( 134 stat_success = TEMP_FAILURE_RETRY(
135 lstat64(listing->path_buffer().AsString(), &entry_info)); 135 lstat(listing->path_buffer().AsString(), &entry_info));
136 if (stat_success == -1) { 136 if (stat_success == -1) {
137 return kListError; 137 return kListError;
138 } 138 }
139 if (listing->follow_links() && S_ISLNK(entry_info.st_mode)) { 139 if (listing->follow_links() && S_ISLNK(entry_info.st_mode)) {
140 // Check to see if we are in a loop created by a symbolic link. 140 // Check to see if we are in a loop created by a symbolic link.
141 LinkList current_link = { entry_info.st_dev, 141 LinkList current_link = { entry_info.st_dev,
142 entry_info.st_ino, 142 entry_info.st_ino,
143 link_ }; 143 link_ };
144 LinkList* previous = link_; 144 LinkList* previous = link_;
145 while (previous != NULL) { 145 while (previous != NULL) {
146 if (previous->dev == current_link.dev && 146 if (previous->dev == current_link.dev &&
147 previous->ino == current_link.ino) { 147 previous->ino == current_link.ino) {
148 // Report the looping link as a link, rather than following it. 148 // Report the looping link as a link, rather than following it.
149 return kListLink; 149 return kListLink;
150 } 150 }
151 previous = previous->next; 151 previous = previous->next;
152 } 152 }
153 stat_success = TEMP_FAILURE_RETRY( 153 stat_success = TEMP_FAILURE_RETRY(
154 stat64(listing->path_buffer().AsString(), &entry_info)); 154 stat(listing->path_buffer().AsString(), &entry_info));
155 if (stat_success == -1) { 155 if (stat_success == -1) {
156 // Report a broken link as a link, even if follow_links is true. 156 // Report a broken link as a link, even if follow_links is true.
157 return kListLink; 157 return kListLink;
158 } 158 }
159 if (S_ISDIR(entry_info.st_mode)) { 159 if (S_ISDIR(entry_info.st_mode)) {
160 // Recurse into the subdirectory with current_link added to the 160 // Recurse into the subdirectory with current_link added to the
161 // linked list of seen file system links. 161 // linked list of seen file system links.
162 link_ = new LinkList(current_link); 162 link_ = new LinkList(current_link);
163 if (strcmp(entry.d_name, ".") == 0) return Next(listing); 163 if (strcmp(entry.d_name, ".") == 0) return Next(listing);
164 if (strcmp(entry.d_name, "..") == 0) return Next(listing); 164 if (strcmp(entry.d_name, "..") == 0) return Next(listing);
(...skipping 58 matching lines...) Expand 10 before | Expand all | Expand 10 after
223 PathBuffer* path) { 223 PathBuffer* path) {
224 if (strcmp(dir_name, ".") == 0) return true; 224 if (strcmp(dir_name, ".") == 0) return true;
225 if (strcmp(dir_name, "..") == 0) return true; 225 if (strcmp(dir_name, "..") == 0) return true;
226 return path->Add(dir_name) && DeleteRecursively(path); 226 return path->Add(dir_name) && DeleteRecursively(path);
227 } 227 }
228 228
229 229
230 static bool DeleteRecursively(PathBuffer* path) { 230 static bool DeleteRecursively(PathBuffer* path) {
231 // Do not recurse into links for deletion. Instead delete the link. 231 // Do not recurse into links for deletion. Instead delete the link.
232 // If it's a file, delete it. 232 // If it's a file, delete it.
233 struct stat64 st; 233 struct stat st;
234 if (TEMP_FAILURE_RETRY(lstat64(path->AsString(), &st)) == -1) { 234 if (TEMP_FAILURE_RETRY(lstat(path->AsString(), &st)) == -1) {
235 return false; 235 return false;
236 } else if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) { 236 } else if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) {
237 return (unlink(path->AsString()) == 0); 237 return (unlink(path->AsString()) == 0);
238 } 238 }
239 239
240 if (!path->Add(File::PathSeparator())) return false; 240 if (!path->Add(File::PathSeparator())) return false;
241 241
242 // Not a link. Attempt to open as a directory and recurse into the 242 // Not a link. Attempt to open as a directory and recurse into the
243 // directory. 243 // directory.
244 DIR* dir_pointer; 244 DIR* dir_pointer;
(...skipping 24 matching lines...) Expand all
269 case DT_LNK: 269 case DT_LNK:
270 // Treat all links as files. This will delete the link which 270 // Treat all links as files. This will delete the link which
271 // is what we want no matter if the link target is a file or a 271 // is what we want no matter if the link target is a file or a
272 // directory. 272 // directory.
273 success = success && DeleteFile(entry.d_name, path); 273 success = success && DeleteFile(entry.d_name, path);
274 break; 274 break;
275 case DT_UNKNOWN: { 275 case DT_UNKNOWN: {
276 // On some file systems the entry type is not determined by 276 // On some file systems the entry type is not determined by
277 // readdir_r. For those we use lstat to determine the entry 277 // readdir_r. For those we use lstat to determine the entry
278 // type. 278 // type.
279 struct stat64 entry_info; 279 struct stat entry_info;
280 if (!path->Add(entry.d_name)) { 280 if (!path->Add(entry.d_name)) {
281 success = false; 281 success = false;
282 break; 282 break;
283 } 283 }
284 int lstat_success = TEMP_FAILURE_RETRY( 284 int lstat_success = TEMP_FAILURE_RETRY(
285 lstat64(path->AsString(), &entry_info)); 285 lstat(path->AsString(), &entry_info));
286 if (lstat_success == -1) { 286 if (lstat_success == -1) {
287 success = false; 287 success = false;
288 break; 288 break;
289 } 289 }
290 path->Reset(path_length); 290 path->Reset(path_length);
291 if (S_ISDIR(entry_info.st_mode)) { 291 if (S_ISDIR(entry_info.st_mode)) {
292 success = success && DeleteDir(entry.d_name, path); 292 success = success && DeleteDir(entry.d_name, path);
293 } else if (S_ISREG(entry_info.st_mode) || S_ISLNK(entry_info.st_mode)) { 293 } else if (S_ISREG(entry_info.st_mode) || S_ISLNK(entry_info.st_mode)) {
294 // Treat links as files. This will delete the link which is 294 // Treat links as files. This will delete the link which is
295 // what we want no matter if the link target is a file or a 295 // what we want no matter if the link target is a file or a
(...skipping 11 matching lines...) Expand all
307 if ((read != 0) || 307 if ((read != 0) ||
308 (closedir(dir_pointer) == -1) || 308 (closedir(dir_pointer) == -1) ||
309 (remove(path->AsString()) == -1)) { 309 (remove(path->AsString()) == -1)) {
310 return false; 310 return false;
311 } 311 }
312 return success; 312 return success;
313 } 313 }
314 314
315 315
316 Directory::ExistsResult Directory::Exists(const char* dir_name) { 316 Directory::ExistsResult Directory::Exists(const char* dir_name) {
317 struct stat64 entry_info; 317 struct stat entry_info;
318 int success = TEMP_FAILURE_RETRY(stat64(dir_name, &entry_info)); 318 int success = TEMP_FAILURE_RETRY(stat(dir_name, &entry_info));
319 if (success == 0) { 319 if (success == 0) {
320 if (S_ISDIR(entry_info.st_mode)) { 320 if (S_ISDIR(entry_info.st_mode)) {
321 return EXISTS; 321 return EXISTS;
322 } else { 322 } else {
323 return DOES_NOT_EXIST; 323 return DOES_NOT_EXIST;
324 } 324 }
325 } else { 325 } else {
326 if (errno == EACCES || 326 if (errno == EACCES ||
327 errno == EBADF || 327 errno == EBADF ||
328 errno == EFAULT || 328 errno == EFAULT ||
(...skipping 96 matching lines...) Expand 10 before | Expand all | Expand 10 after
425 bool Directory::Rename(const char* path, const char* new_path) { 425 bool Directory::Rename(const char* path, const char* new_path) {
426 ExistsResult exists = Exists(path); 426 ExistsResult exists = Exists(path);
427 if (exists != EXISTS) return false; 427 if (exists != EXISTS) return false;
428 return (TEMP_FAILURE_RETRY(rename(path, new_path)) == 0); 428 return (TEMP_FAILURE_RETRY(rename(path, new_path)) == 0);
429 } 429 }
430 430
431 } // namespace bin 431 } // namespace bin
432 } // namespace dart 432 } // namespace dart
433 433
434 #endif // defined(TARGET_OS_MACOS) 434 #endif // defined(TARGET_OS_MACOS)
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