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Side by Side Diff: base/memory/shared_memory.h

Issue 191673003: Implement ScopedFD in terms of ScopedGeneric. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 6 years, 9 months ago
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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 "build/build_config.h" 8 #include "build/build_config.h"
9 9
10 #include <string> 10 #include <string>
11 11
12 #if defined(OS_POSIX) 12 #if defined(OS_POSIX)
13 #include <stdio.h> 13 #include <stdio.h>
14 #include <sys/types.h> 14 #include <sys/types.h>
15 #include <semaphore.h> 15 #include <semaphore.h>
16 #endif 16 #endif
17 17
18 #include "base/base_export.h" 18 #include "base/base_export.h"
19 #include "base/basictypes.h" 19 #include "base/basictypes.h"
20 #include "base/process/process_handle.h" 20 #include "base/process/process_handle.h"
21 21
22 #if defined(OS_POSIX) 22 #if defined(OS_POSIX)
23 #include "base/file_descriptor_posix.h" 23 #include "base/file_descriptor_posix.h"
24 #include "base/file_util.h" 24 #include "base/file_util.h"
25 #include "base/files/scoped_file.h"
25 #endif 26 #endif
26 27
27 namespace base { 28 namespace base {
28 29
29 class FilePath; 30 class FilePath;
30 31
31 // SharedMemoryHandle is a platform specific type which represents 32 // SharedMemoryHandle is a platform specific type which represents
32 // the underlying OS handle to a shared memory segment. 33 // the underlying OS handle to a shared memory segment.
33 #if defined(OS_WIN) 34 #if defined(OS_WIN)
34 typedef HANDLE SharedMemoryHandle; 35 typedef HANDLE SharedMemoryHandle;
(...skipping 217 matching lines...) Expand 10 before | Expand all | Expand 10 after
252 // used in inner loops, so we protect against multiple threads in a 253 // used in inner loops, so we protect against multiple threads in a
253 // critical section using a class global lock. 254 // critical section using a class global lock.
254 void LockDeprecated(); 255 void LockDeprecated();
255 256
256 // DEPRECATED (crbug.com/345734): 257 // DEPRECATED (crbug.com/345734):
257 // Releases the shared memory lock. 258 // Releases the shared memory lock.
258 void UnlockDeprecated(); 259 void UnlockDeprecated();
259 260
260 private: 261 private:
261 #if defined(OS_POSIX) && !defined(OS_NACL) 262 #if defined(OS_POSIX) && !defined(OS_NACL)
262 bool PrepareMapFile(file_util::ScopedFILE fp, file_util::ScopedFD readonly); 263 bool PrepareMapFile(file_util::ScopedFILE fp, base::ScopedFD readonly);
263 bool FilePathForMemoryName(const std::string& mem_name, FilePath* path); 264 bool FilePathForMemoryName(const std::string& mem_name, FilePath* path);
264 void LockOrUnlockCommon(int function); 265 void LockOrUnlockCommon(int function);
265 #endif 266 #endif
266 enum ShareMode { 267 enum ShareMode {
267 SHARE_READONLY, 268 SHARE_READONLY,
268 SHARE_CURRENT_MODE, 269 SHARE_CURRENT_MODE,
269 }; 270 };
270 bool ShareToProcessCommon(ProcessHandle process, 271 bool ShareToProcessCommon(ProcessHandle process,
271 SharedMemoryHandle* new_handle, 272 SharedMemoryHandle* new_handle,
272 bool close_self, 273 bool close_self,
(...skipping 33 matching lines...) Expand 10 before | Expand all | Expand 10 after
306 } 307 }
307 308
308 private: 309 private:
309 SharedMemory* shared_memory_; 310 SharedMemory* shared_memory_;
310 DISALLOW_COPY_AND_ASSIGN(SharedMemoryAutoLockDeprecated); 311 DISALLOW_COPY_AND_ASSIGN(SharedMemoryAutoLockDeprecated);
311 }; 312 };
312 313
313 } // namespace base 314 } // namespace base
314 315
315 #endif // BASE_MEMORY_SHARED_MEMORY_H_ 316 #endif // BASE_MEMORY_SHARED_MEMORY_H_
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