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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/file.h" 8 #include "bin/file.h"
9 9
10 #include <errno.h> // NOLINT 10 #include <errno.h> // NOLINT
(...skipping 59 matching lines...) Expand 10 before | Expand all | Expand 10 after
70 70
71 71
72 int64_t File::Write(const void* buffer, int64_t num_bytes) { 72 int64_t File::Write(const void* buffer, int64_t num_bytes) {
73 ASSERT(handle_->fd() >= 0); 73 ASSERT(handle_->fd() >= 0);
74 return TEMP_FAILURE_RETRY(write(handle_->fd(), buffer, num_bytes)); 74 return TEMP_FAILURE_RETRY(write(handle_->fd(), buffer, num_bytes));
75 } 75 }
76 76
77 77
78 off64_t File::Position() { 78 off64_t File::Position() {
79 ASSERT(handle_->fd() >= 0); 79 ASSERT(handle_->fd() >= 0);
80 return lseek64(handle_->fd(), 0, SEEK_CUR); 80 return lseek(handle_->fd(), 0, SEEK_CUR);
81 } 81 }
82 82
83 83
84 bool File::SetPosition(off64_t position) { 84 bool File::SetPosition(off64_t position) {
85 ASSERT(handle_->fd() >= 0); 85 ASSERT(handle_->fd() >= 0);
86 return lseek64(handle_->fd(), position, SEEK_SET) >= 0; 86 return lseek(handle_->fd(), position, SEEK_SET) >= 0;
87 } 87 }
88 88
89 89
90 bool File::Truncate(off64_t length) { 90 bool File::Truncate(off64_t length) {
91 ASSERT(handle_->fd() >= 0); 91 ASSERT(handle_->fd() >= 0);
92 return TEMP_FAILURE_RETRY(ftruncate64(handle_->fd(), length) != -1); 92 return TEMP_FAILURE_RETRY(ftruncate(handle_->fd(), length) != -1);
93 } 93 }
94 94
95 95
96 bool File::Flush() { 96 bool File::Flush() {
97 ASSERT(handle_->fd() >= 0); 97 ASSERT(handle_->fd() >= 0);
98 return TEMP_FAILURE_RETRY(fsync(handle_->fd()) != -1); 98 return TEMP_FAILURE_RETRY(fsync(handle_->fd()) != -1);
99 } 99 }
100 100
101 101
102 off64_t File::Length() { 102 off64_t File::Length() {
103 ASSERT(handle_->fd() >= 0); 103 ASSERT(handle_->fd() >= 0);
104 struct stat64 st; 104 struct stat st;
105 if (TEMP_FAILURE_RETRY(fstat64(handle_->fd(), &st)) == 0) { 105 if (TEMP_FAILURE_RETRY(fstat(handle_->fd(), &st)) == 0) {
106 return st.st_size; 106 return st.st_size;
107 } 107 }
108 return -1; 108 return -1;
109 } 109 }
110 110
111 111
112 File* File::Open(const char* name, FileOpenMode mode) { 112 File* File::Open(const char* name, FileOpenMode mode) {
113 // Report errors for non-regular files. 113 // Report errors for non-regular files.
114 struct stat64 st; 114 struct stat st;
115 if (TEMP_FAILURE_RETRY(stat64(name, &st)) == 0) { 115 if (TEMP_FAILURE_RETRY(stat(name, &st)) == 0) {
116 // Only accept regular files and character devices. 116 // Only accept regular files and character devices.
117 if (!S_ISREG(st.st_mode) && !S_ISCHR(st.st_mode)) { 117 if (!S_ISREG(st.st_mode) && !S_ISCHR(st.st_mode)) {
118 errno = (S_ISDIR(st.st_mode)) ? EISDIR : ENOENT; 118 errno = (S_ISDIR(st.st_mode)) ? EISDIR : ENOENT;
119 return NULL; 119 return NULL;
120 } 120 }
121 } 121 }
122 int flags = O_RDONLY; 122 int flags = O_RDONLY;
123 if ((mode & kWrite) != 0) { 123 if ((mode & kWrite) != 0) {
124 flags = (O_RDWR | O_CREAT); 124 flags = (O_RDWR | O_CREAT);
125 } 125 }
126 if ((mode & kTruncate) != 0) { 126 if ((mode & kTruncate) != 0) {
127 flags = flags | O_TRUNC; 127 flags = flags | O_TRUNC;
128 } 128 }
129 int fd = TEMP_FAILURE_RETRY(open64(name, flags, 0666)); 129 int fd = TEMP_FAILURE_RETRY(open(name, flags, 0666));
130 if (fd < 0) { 130 if (fd < 0) {
131 return NULL; 131 return NULL;
132 } 132 }
133 FDUtils::SetCloseOnExec(fd); 133 FDUtils::SetCloseOnExec(fd);
134 if (((mode & kWrite) != 0) && ((mode & kTruncate) == 0)) { 134 if (((mode & kWrite) != 0) && ((mode & kTruncate) == 0)) {
135 off64_t position = lseek64(fd, 0, SEEK_END); 135 off64_t position = lseek(fd, 0, SEEK_END);
136 if (position < 0) { 136 if (position < 0) {
137 return NULL; 137 return NULL;
138 } 138 }
139 } 139 }
140 return new File(new FileHandle(fd)); 140 return new File(new FileHandle(fd));
141 } 141 }
142 142
143 143
144 File* File::OpenStdio(int fd) { 144 File* File::OpenStdio(int fd) {
145 if (fd < 0 || 2 < fd) return NULL; 145 if (fd < 0 || 2 < fd) return NULL;
146 return new File(new FileHandle(fd)); 146 return new File(new FileHandle(fd));
147 } 147 }
148 148
149 149
150 bool File::Exists(const char* name) { 150 bool File::Exists(const char* name) {
151 struct stat64 st; 151 struct stat st;
152 if (TEMP_FAILURE_RETRY(stat64(name, &st)) == 0) { 152 if (TEMP_FAILURE_RETRY(stat(name, &st)) == 0) {
153 return S_ISREG(st.st_mode); 153 return S_ISREG(st.st_mode);
154 } else { 154 } else {
155 return false; 155 return false;
156 } 156 }
157 } 157 }
158 158
159 159
160 bool File::Create(const char* name) { 160 bool File::Create(const char* name) {
161 int fd = TEMP_FAILURE_RETRY(open64(name, O_RDONLY | O_CREAT, 0666)); 161 int fd = TEMP_FAILURE_RETRY(open(name, O_RDONLY | O_CREAT, 0666));
162 if (fd < 0) { 162 if (fd < 0) {
163 return false; 163 return false;
164 } 164 }
165 return (close(fd) == 0); 165 return (close(fd) == 0);
166 } 166 }
167 167
168 168
169 bool File::CreateLink(const char* name, const char* target) { 169 bool File::CreateLink(const char* name, const char* target) {
170 int status = TEMP_FAILURE_RETRY(symlink(target, name)); 170 int status = TEMP_FAILURE_RETRY(symlink(target, name));
171 return (status == 0); 171 return (status == 0);
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215 } else if (type == kIsDirectory) { 215 } else if (type == kIsDirectory) {
216 errno = EISDIR; 216 errno = EISDIR;
217 } else { 217 } else {
218 errno = EINVAL; 218 errno = EINVAL;
219 } 219 }
220 return false; 220 return false;
221 } 221 }
222 222
223 223
224 off64_t File::LengthFromPath(const char* name) { 224 off64_t File::LengthFromPath(const char* name) {
225 struct stat64 st; 225 struct stat st;
226 if (TEMP_FAILURE_RETRY(stat64(name, &st)) == 0) { 226 if (TEMP_FAILURE_RETRY(stat(name, &st)) == 0) {
227 return st.st_size; 227 return st.st_size;
228 } 228 }
229 return -1; 229 return -1;
230 } 230 }
231 231
232 232
233 void File::Stat(const char* name, int64_t* data) { 233 void File::Stat(const char* name, int64_t* data) {
234 struct stat64 st; 234 struct stat st;
235 if (TEMP_FAILURE_RETRY(stat64(name, &st)) == 0) { 235 if (TEMP_FAILURE_RETRY(stat(name, &st)) == 0) {
236 if (S_ISREG(st.st_mode)) { 236 if (S_ISREG(st.st_mode)) {
237 data[kType] = kIsFile; 237 data[kType] = kIsFile;
238 } else if (S_ISDIR(st.st_mode)) { 238 } else if (S_ISDIR(st.st_mode)) {
239 data[kType] = kIsDirectory; 239 data[kType] = kIsDirectory;
240 } else if (S_ISLNK(st.st_mode)) { 240 } else if (S_ISLNK(st.st_mode)) {
241 data[kType] = kIsLink; 241 data[kType] = kIsLink;
242 } else { 242 } else {
243 data[kType] = kDoesNotExist; 243 data[kType] = kDoesNotExist;
244 } 244 }
245 data[kCreatedTime] = st.st_ctime; 245 data[kCreatedTime] = st.st_ctime;
246 data[kModifiedTime] = st.st_mtime; 246 data[kModifiedTime] = st.st_mtime;
247 data[kAccessedTime] = st.st_atime; 247 data[kAccessedTime] = st.st_atime;
248 data[kMode] = st.st_mode; 248 data[kMode] = st.st_mode;
249 data[kSize] = st.st_size; 249 data[kSize] = st.st_size;
250 } else { 250 } else {
251 data[kType] = kDoesNotExist; 251 data[kType] = kDoesNotExist;
252 } 252 }
253 } 253 }
254 254
255 255
256 time_t File::LastModified(const char* name) { 256 time_t File::LastModified(const char* name) {
257 struct stat64 st; 257 struct stat st;
258 if (TEMP_FAILURE_RETRY(stat64(name, &st)) == 0) { 258 if (TEMP_FAILURE_RETRY(stat(name, &st)) == 0) {
259 return st.st_mtime; 259 return st.st_mtime;
260 } 260 }
261 return -1; 261 return -1;
262 } 262 }
263 263
264 264
265 char* File::LinkTarget(const char* pathname) { 265 char* File::LinkTarget(const char* pathname) {
266 struct stat64 link_stats; 266 struct stat link_stats;
267 if (lstat64(pathname, &link_stats) != 0) return NULL; 267 if (lstat(pathname, &link_stats) != 0) return NULL;
268 if (!S_ISLNK(link_stats.st_mode)) { 268 if (!S_ISLNK(link_stats.st_mode)) {
269 errno = ENOENT; 269 errno = ENOENT;
270 return NULL; 270 return NULL;
271 } 271 }
272 size_t target_size = link_stats.st_size; 272 size_t target_size = link_stats.st_size;
273 char* target_name = reinterpret_cast<char*>(malloc(target_size + 1)); 273 char* target_name = reinterpret_cast<char*>(malloc(target_size + 1));
274 size_t read_size = readlink(pathname, target_name, target_size + 1); 274 size_t read_size = readlink(pathname, target_name, target_size + 1);
275 if (read_size != target_size) { 275 if (read_size != target_size) {
276 free(target_name); 276 free(target_name);
277 return NULL; 277 return NULL;
(...skipping 31 matching lines...) Expand 10 before | Expand all | Expand 10 after
309 } 309 }
310 310
311 311
312 const char* File::StringEscapedPathSeparator() { 312 const char* File::StringEscapedPathSeparator() {
313 return "/"; 313 return "/";
314 } 314 }
315 315
316 316
317 File::StdioHandleType File::GetStdioHandleType(int fd) { 317 File::StdioHandleType File::GetStdioHandleType(int fd) {
318 ASSERT(0 <= fd && fd <= 2); 318 ASSERT(0 <= fd && fd <= 2);
319 struct stat64 buf; 319 struct stat buf;
320 int result = fstat64(fd, &buf); 320 int result = fstat(fd, &buf);
321 if (result == -1) { 321 if (result == -1) {
322 const int kBufferSize = 1024; 322 const int kBufferSize = 1024;
323 char error_message[kBufferSize]; 323 char error_message[kBufferSize];
324 strerror_r(errno, error_message, kBufferSize); 324 strerror_r(errno, error_message, kBufferSize);
325 FATAL2("Failed stat on file descriptor %d: %s", fd, error_message); 325 FATAL2("Failed stat on file descriptor %d: %s", fd, error_message);
326 } 326 }
327 if (S_ISCHR(buf.st_mode)) return kTerminal; 327 if (S_ISCHR(buf.st_mode)) return kTerminal;
328 if (S_ISFIFO(buf.st_mode)) return kPipe; 328 if (S_ISFIFO(buf.st_mode)) return kPipe;
329 if (S_ISSOCK(buf.st_mode)) return kSocket; 329 if (S_ISSOCK(buf.st_mode)) return kSocket;
330 if (S_ISREG(buf.st_mode)) return kFile; 330 if (S_ISREG(buf.st_mode)) return kFile;
331 return kOther; 331 return kOther;
332 } 332 }
333 333
334 334
335 File::Type File::GetType(const char* pathname, bool follow_links) { 335 File::Type File::GetType(const char* pathname, bool follow_links) {
336 struct stat64 entry_info; 336 struct stat entry_info;
337 int stat_success; 337 int stat_success;
338 if (follow_links) { 338 if (follow_links) {
339 stat_success = TEMP_FAILURE_RETRY(stat64(pathname, &entry_info)); 339 stat_success = TEMP_FAILURE_RETRY(stat(pathname, &entry_info));
340 } else { 340 } else {
341 stat_success = TEMP_FAILURE_RETRY(lstat64(pathname, &entry_info)); 341 stat_success = TEMP_FAILURE_RETRY(lstat(pathname, &entry_info));
342 } 342 }
343 if (stat_success == -1) return File::kDoesNotExist; 343 if (stat_success == -1) return File::kDoesNotExist;
344 if (S_ISDIR(entry_info.st_mode)) return File::kIsDirectory; 344 if (S_ISDIR(entry_info.st_mode)) return File::kIsDirectory;
345 if (S_ISREG(entry_info.st_mode)) return File::kIsFile; 345 if (S_ISREG(entry_info.st_mode)) return File::kIsFile;
346 if (S_ISLNK(entry_info.st_mode)) return File::kIsLink; 346 if (S_ISLNK(entry_info.st_mode)) return File::kIsLink;
347 return File::kDoesNotExist; 347 return File::kDoesNotExist;
348 } 348 }
349 349
350 350
351 File::Identical File::AreIdentical(const char* file_1, const char* file_2) { 351 File::Identical File::AreIdentical(const char* file_1, const char* file_2) {
352 struct stat64 file_1_info; 352 struct stat file_1_info;
353 struct stat64 file_2_info; 353 struct stat file_2_info;
354 if (TEMP_FAILURE_RETRY(lstat64(file_1, &file_1_info)) == -1 || 354 if (TEMP_FAILURE_RETRY(lstat(file_1, &file_1_info)) == -1 ||
355 TEMP_FAILURE_RETRY(lstat64(file_2, &file_2_info)) == -1) { 355 TEMP_FAILURE_RETRY(lstat(file_2, &file_2_info)) == -1) {
356 return File::kError; 356 return File::kError;
357 } 357 }
358 return (file_1_info.st_ino == file_2_info.st_ino && 358 return (file_1_info.st_ino == file_2_info.st_ino &&
359 file_1_info.st_dev == file_2_info.st_dev) ? 359 file_1_info.st_dev == file_2_info.st_dev) ?
360 File::kIdentical : 360 File::kIdentical :
361 File::kDifferent; 361 File::kDifferent;
362 } 362 }
363 363
364 } // namespace bin 364 } // namespace bin
365 } // namespace dart 365 } // namespace dart
366 366
367 #endif // defined(TARGET_OS_MACOS) 367 #endif // defined(TARGET_OS_MACOS)
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