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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 #ifndef BASE_MEMORY_SHARED_MEMORY_H_ | 5 #ifndef BASE_MEMORY_SHARED_MEMORY_H_ |
6 #define BASE_MEMORY_SHARED_MEMORY_H_ | 6 #define BASE_MEMORY_SHARED_MEMORY_H_ |
7 | 7 |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 | 9 |
10 #include <string> | 10 #include <string> |
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248 // bool ok = ShareToProcess(process, new_handle); | 248 // bool ok = ShareToProcess(process, new_handle); |
249 // Close(); | 249 // Close(); |
250 // return ok; | 250 // return ok; |
251 // Note that the memory is unmapped by calling this method, regardless of the | 251 // Note that the memory is unmapped by calling this method, regardless of the |
252 // return value. | 252 // return value. |
253 bool GiveToProcess(ProcessHandle process, | 253 bool GiveToProcess(ProcessHandle process, |
254 SharedMemoryHandle* new_handle) { | 254 SharedMemoryHandle* new_handle) { |
255 return ShareToProcessCommon(process, new_handle, true, SHARE_CURRENT_MODE); | 255 return ShareToProcessCommon(process, new_handle, true, SHARE_CURRENT_MODE); |
256 } | 256 } |
257 | 257 |
258 #if defined(OS_POSIX) && (!defined(OS_MACOSX) || defined(OS_IOS)) && \ | |
danakj
2017/03/06 16:07:06
Oh, also the BUILD.gn is now:
if (is_posix && !is
hajimehoshi
2017/03/07 06:22:34
These should match. IIUC,
* is_mac in BUILD.gn inc
| |
259 !defined(OS_NACL) | |
260 using UniqueId = std::pair<dev_t, ino_t>; | |
261 | |
262 struct UniqueIdHash { | |
263 size_t operator()(const UniqueId& id) const { | |
264 return HashInts(id.first, id.second); | |
265 } | |
266 }; | |
267 | |
268 // Returns a unique ID for this shared memory's handle. Note this function may | |
269 // access file system and be slow. | |
270 bool GetUniqueId(UniqueId* id) const; | |
271 #endif | |
272 | |
258 private: | 273 private: |
259 #if defined(OS_POSIX) && !defined(OS_NACL) && !defined(OS_ANDROID) && \ | 274 #if defined(OS_POSIX) && !defined(OS_NACL) && !defined(OS_ANDROID) && \ |
260 !(defined(OS_MACOSX) && !defined(OS_IOS)) | 275 (!defined(OS_MACOSX) || defined(OS_IOS)) |
261 bool FilePathForMemoryName(const std::string& mem_name, FilePath* path); | 276 bool FilePathForMemoryName(const std::string& mem_name, FilePath* path); |
262 #endif | 277 #endif |
263 | 278 |
264 enum ShareMode { | 279 enum ShareMode { |
265 SHARE_READONLY, | 280 SHARE_READONLY, |
266 SHARE_CURRENT_MODE, | 281 SHARE_CURRENT_MODE, |
267 }; | 282 }; |
268 | 283 |
269 #if defined(OS_MACOSX) | 284 #if defined(OS_MACOSX) |
270 bool Share(SharedMemoryHandle* new_handle, ShareMode share_mode); | 285 bool Share(SharedMemoryHandle* new_handle, ShareMode share_mode); |
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294 int mapped_file_; | 309 int mapped_file_; |
295 int readonly_mapped_file_; | 310 int readonly_mapped_file_; |
296 #endif | 311 #endif |
297 size_t mapped_size_; | 312 size_t mapped_size_; |
298 void* memory_; | 313 void* memory_; |
299 bool read_only_; | 314 bool read_only_; |
300 size_t requested_size_; | 315 size_t requested_size_; |
301 | 316 |
302 DISALLOW_COPY_AND_ASSIGN(SharedMemory); | 317 DISALLOW_COPY_AND_ASSIGN(SharedMemory); |
303 }; | 318 }; |
319 | |
304 } // namespace base | 320 } // namespace base |
305 | 321 |
306 #endif // BASE_MEMORY_SHARED_MEMORY_H_ | 322 #endif // BASE_MEMORY_SHARED_MEMORY_H_ |
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