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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 #include "base/memory/shared_memory.h" | 5 #include "base/memory/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> |
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27 | 27 |
28 #if defined(OS_ANDROID) | 28 #if defined(OS_ANDROID) |
29 #include "base/os_compat_android.h" | 29 #include "base/os_compat_android.h" |
30 #include "third_party/ashmem/ashmem.h" | 30 #include "third_party/ashmem/ashmem.h" |
31 #endif | 31 #endif |
32 | 32 |
33 namespace base { | 33 namespace base { |
34 | 34 |
35 namespace { | 35 namespace { |
36 | 36 |
37 // Paranoia. Semaphores and shared memory segments should live in different | |
38 // namespaces, but who knows what's out there. | |
39 const char kSemaphoreSuffix[] = "-sem"; | |
40 | |
41 LazyInstance<Lock>::Leaky g_thread_lock_ = LAZY_INSTANCE_INITIALIZER; | 37 LazyInstance<Lock>::Leaky g_thread_lock_ = LAZY_INSTANCE_INITIALIZER; |
42 | 38 |
43 } | 39 } |
44 | 40 |
45 SharedMemory::SharedMemory() | 41 SharedMemory::SharedMemory() |
46 : mapped_file_(-1), | 42 : mapped_file_(-1), |
47 inode_(0), | 43 inode_(0), |
48 mapped_size_(0), | 44 mapped_size_(0), |
49 memory_(NULL), | 45 memory_(NULL), |
50 read_only_(false), | 46 read_only_(false), |
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414 new_handle->fd = new_fd; | 410 new_handle->fd = new_fd; |
415 new_handle->auto_close = true; | 411 new_handle->auto_close = true; |
416 | 412 |
417 if (close_self) | 413 if (close_self) |
418 Close(); | 414 Close(); |
419 | 415 |
420 return true; | 416 return true; |
421 } | 417 } |
422 | 418 |
423 } // namespace base | 419 } // namespace base |
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