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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 <copyfile.h> // NOLINT | 10 #include <copyfile.h> // NOLINT |
11 #include <errno.h> // NOLINT | 11 #include <errno.h> // NOLINT |
12 #include <fcntl.h> // NOLINT | 12 #include <fcntl.h> // NOLINT |
13 #include <libgen.h> // NOLINT | 13 #include <libgen.h> // NOLINT |
14 #include <limits.h> // NOLINT | 14 #include <limits.h> // NOLINT |
15 #include <sys/mman.h> // NOLINT | 15 #include <sys/mman.h> // NOLINT |
16 #include <sys/stat.h> // NOLINT | 16 #include <sys/stat.h> // NOLINT |
17 #include <unistd.h> // NOLINT | 17 #include <unistd.h> // NOLINT |
18 | 18 |
19 #include "bin/builtin.h" | 19 #include "bin/builtin.h" |
20 #include "bin/fdutils.h" | 20 #include "bin/fdutils.h" |
21 #include "bin/log.h" | 21 #include "bin/log.h" |
22 | 22 |
23 #include "platform/signal_blocker.h" | 23 #include "platform/signal_blocker.h" |
24 #include "platform/utils.h" | 24 #include "platform/utils.h" |
25 | 25 |
26 namespace dart { | 26 namespace dart { |
27 namespace bin { | 27 namespace bin { |
28 | 28 |
29 class FileHandle { | 29 class FileHandle { |
30 public: | 30 public: |
31 explicit FileHandle(int fd) : fd_(fd) { } | 31 explicit FileHandle(int fd) : fd_(fd) {} |
32 ~FileHandle() { } | 32 ~FileHandle() {} |
33 int fd() const { return fd_; } | 33 int fd() const { return fd_; } |
34 void set_fd(int fd) { fd_ = fd; } | 34 void set_fd(int fd) { fd_ = fd; } |
35 | 35 |
36 private: | 36 private: |
37 int fd_; | 37 int fd_; |
38 | 38 |
39 DISALLOW_COPY_AND_ASSIGN(FileHandle); | 39 DISALLOW_COPY_AND_ASSIGN(FileHandle); |
40 }; | 40 }; |
41 | 41 |
42 | 42 |
43 File::~File() { | 43 File::~File() { |
44 if (!IsClosed() && | 44 if (!IsClosed() && handle_->fd() != STDOUT_FILENO && |
45 handle_->fd() != STDOUT_FILENO && handle_->fd() != STDERR_FILENO) { | 45 handle_->fd() != STDERR_FILENO) { |
46 Close(); | 46 Close(); |
47 } | 47 } |
48 delete handle_; | 48 delete handle_; |
49 } | 49 } |
50 | 50 |
51 | 51 |
52 void File::Close() { | 52 void File::Close() { |
53 ASSERT(handle_->fd() >= 0); | 53 ASSERT(handle_->fd() >= 0); |
54 if (handle_->fd() == STDOUT_FILENO) { | 54 if (handle_->fd() == STDOUT_FILENO) { |
55 // If stdout, redirect fd to /dev/null. | 55 // If stdout, redirect fd to /dev/null. |
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86 switch (type) { | 86 switch (type) { |
87 case kReadOnly: | 87 case kReadOnly: |
88 prot = PROT_READ; | 88 prot = PROT_READ; |
89 break; | 89 break; |
90 case kReadExecute: | 90 case kReadExecute: |
91 prot = PROT_READ | PROT_EXEC; | 91 prot = PROT_READ | PROT_EXEC; |
92 break; | 92 break; |
93 default: | 93 default: |
94 return NULL; | 94 return NULL; |
95 } | 95 } |
96 void* addr = mmap(NULL, length, prot, MAP_PRIVATE, | 96 void* addr = mmap(NULL, length, prot, MAP_PRIVATE, handle_->fd(), position); |
97 handle_->fd(), position); | |
98 if (addr == MAP_FAILED) { | 97 if (addr == MAP_FAILED) { |
99 return NULL; | 98 return NULL; |
100 } | 99 } |
101 return addr; | 100 return addr; |
102 } | 101 } |
103 | 102 |
104 | 103 |
105 int64_t File::Read(void* buffer, int64_t num_bytes) { | 104 int64_t File::Read(void* buffer, int64_t num_bytes) { |
106 ASSERT(handle_->fd() >= 0); | 105 ASSERT(handle_->fd() >= 0); |
107 return TEMP_FAILURE_RETRY(read(handle_->fd(), buffer, num_bytes)); | 106 return TEMP_FAILURE_RETRY(read(handle_->fd(), buffer, num_bytes)); |
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319 struct stat st; | 318 struct stat st; |
320 if (NO_RETRY_EXPECTED(stat(name, &st)) == 0) { | 319 if (NO_RETRY_EXPECTED(stat(name, &st)) == 0) { |
321 return st.st_size; | 320 return st.st_size; |
322 } | 321 } |
323 return -1; | 322 return -1; |
324 } | 323 } |
325 | 324 |
326 | 325 |
327 static int64_t TimespecToMilliseconds(const struct timespec& t) { | 326 static int64_t TimespecToMilliseconds(const struct timespec& t) { |
328 return static_cast<int64_t>(t.tv_sec) * 1000L + | 327 return static_cast<int64_t>(t.tv_sec) * 1000L + |
329 static_cast<int64_t>(t.tv_nsec) / 1000000L; | 328 static_cast<int64_t>(t.tv_nsec) / 1000000L; |
330 } | 329 } |
331 | 330 |
332 | 331 |
333 void File::Stat(const char* name, int64_t* data) { | 332 void File::Stat(const char* name, int64_t* data) { |
334 struct stat st; | 333 struct stat st; |
335 if (NO_RETRY_EXPECTED(stat(name, &st)) == 0) { | 334 if (NO_RETRY_EXPECTED(stat(name, &st)) == 0) { |
336 if (S_ISREG(st.st_mode)) { | 335 if (S_ISREG(st.st_mode)) { |
337 data[kType] = kIsFile; | 336 data[kType] = kIsFile; |
338 } else if (S_ISDIR(st.st_mode)) { | 337 } else if (S_ISDIR(st.st_mode)) { |
339 data[kType] = kIsDirectory; | 338 data[kType] = kIsDirectory; |
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371 return NULL; | 370 return NULL; |
372 } | 371 } |
373 if (!S_ISLNK(link_stats.st_mode)) { | 372 if (!S_ISLNK(link_stats.st_mode)) { |
374 errno = ENOENT; | 373 errno = ENOENT; |
375 return NULL; | 374 return NULL; |
376 } | 375 } |
377 // Don't rely on the link_stats.st_size for the size of the link | 376 // Don't rely on the link_stats.st_size for the size of the link |
378 // target. The link might have changed before the readlink call. | 377 // target. The link might have changed before the readlink call. |
379 const int kBufferSize = 1024; | 378 const int kBufferSize = 1024; |
380 char target[kBufferSize]; | 379 char target[kBufferSize]; |
381 size_t target_size = TEMP_FAILURE_RETRY( | 380 size_t target_size = |
382 readlink(pathname, target, kBufferSize)); | 381 TEMP_FAILURE_RETRY(readlink(pathname, target, kBufferSize)); |
383 if (target_size <= 0) { | 382 if (target_size <= 0) { |
384 return NULL; | 383 return NULL; |
385 } | 384 } |
386 char* target_name = DartUtils::ScopedCString(target_size + 1); | 385 char* target_name = DartUtils::ScopedCString(target_size + 1); |
387 ASSERT(target_name != NULL); | 386 ASSERT(target_name != NULL); |
388 memmove(target_name, target, target_size); | 387 memmove(target_name, target, target_size); |
389 target_name[target_size] = '\0'; | 388 target_name[target_size] = '\0'; |
390 return target_name; | 389 return target_name; |
391 } | 390 } |
392 | 391 |
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475 | 474 |
476 | 475 |
477 File::Identical File::AreIdentical(const char* file_1, const char* file_2) { | 476 File::Identical File::AreIdentical(const char* file_1, const char* file_2) { |
478 struct stat file_1_info; | 477 struct stat file_1_info; |
479 struct stat file_2_info; | 478 struct stat file_2_info; |
480 if ((NO_RETRY_EXPECTED(lstat(file_1, &file_1_info)) == -1) || | 479 if ((NO_RETRY_EXPECTED(lstat(file_1, &file_1_info)) == -1) || |
481 (NO_RETRY_EXPECTED(lstat(file_2, &file_2_info)) == -1)) { | 480 (NO_RETRY_EXPECTED(lstat(file_2, &file_2_info)) == -1)) { |
482 return File::kError; | 481 return File::kError; |
483 } | 482 } |
484 return ((file_1_info.st_ino == file_2_info.st_ino) && | 483 return ((file_1_info.st_ino == file_2_info.st_ino) && |
485 (file_1_info.st_dev == file_2_info.st_dev)) ? | 484 (file_1_info.st_dev == file_2_info.st_dev)) |
486 File::kIdentical : | 485 ? File::kIdentical |
487 File::kDifferent; | 486 : File::kDifferent; |
488 } | 487 } |
489 | 488 |
490 } // namespace bin | 489 } // namespace bin |
491 } // namespace dart | 490 } // namespace dart |
492 | 491 |
493 #endif // defined(TARGET_OS_MACOS) | 492 #endif // defined(TARGET_OS_MACOS) |
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