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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 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 #include "base/shared_memory.h" | 5 #include "base/shared_memory.h" |
6 | 6 |
7 #include <errno.h> | 7 #include <errno.h> |
8 #include <fcntl.h> | 8 #include <fcntl.h> |
9 #include <sys/mman.h> | 9 #include <sys/mman.h> |
10 #include <sys/stat.h> | 10 #include <sys/stat.h> |
11 #include <unistd.h> | 11 #include <unistd.h> |
12 | 12 |
13 #include "base/file_util.h" | 13 #include "base/file_util.h" |
14 #include "base/logging.h" | 14 #include "base/logging.h" |
15 #include "base/threading/platform_thread.h" | 15 #include "base/threading/platform_thread.h" |
16 #include "base/safe_strerror_posix.h" | 16 #include "base/safe_strerror_posix.h" |
17 #include "base/thread_restrictions.h" | 17 #include "base/threading/thread_restrictions.h" |
18 #include "base/utf_string_conversions.h" | 18 #include "base/utf_string_conversions.h" |
19 | 19 |
20 namespace base { | 20 namespace base { |
21 | 21 |
22 namespace { | 22 namespace { |
23 // Paranoia. Semaphores and shared memory segments should live in different | 23 // Paranoia. Semaphores and shared memory segments should live in different |
24 // namespaces, but who knows what's out there. | 24 // namespaces, but who knows what's out there. |
25 const char kSemaphoreSuffix[] = "-sem"; | 25 const char kSemaphoreSuffix[] = "-sem"; |
26 } | 26 } |
27 | 27 |
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317 | 317 |
318 void SharedMemory::Unlock() { | 318 void SharedMemory::Unlock() { |
319 LockOrUnlockCommon(F_ULOCK); | 319 LockOrUnlockCommon(F_ULOCK); |
320 } | 320 } |
321 | 321 |
322 SharedMemoryHandle SharedMemory::handle() const { | 322 SharedMemoryHandle SharedMemory::handle() const { |
323 return FileDescriptor(mapped_file_, false); | 323 return FileDescriptor(mapped_file_, false); |
324 } | 324 } |
325 | 325 |
326 } // namespace base | 326 } // namespace base |
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