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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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> |
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84 | 84 |
85 // static | 85 // static |
86 SharedMemoryHandle SharedMemory::NULLHandle() { | 86 SharedMemoryHandle SharedMemory::NULLHandle() { |
87 return SharedMemoryHandle(); | 87 return SharedMemoryHandle(); |
88 } | 88 } |
89 | 89 |
90 // static | 90 // static |
91 void SharedMemory::CloseHandle(const SharedMemoryHandle& handle) { | 91 void SharedMemory::CloseHandle(const SharedMemoryHandle& handle) { |
92 DCHECK_GE(handle.fd, 0); | 92 DCHECK_GE(handle.fd, 0); |
93 if (HANDLE_EINTR(close(handle.fd)) < 0) | 93 if (HANDLE_EINTR(close(handle.fd)) < 0) |
94 PLOG(ERROR) << "close"; | 94 DPLOG(ERROR) << "close"; |
95 } | 95 } |
96 | 96 |
97 bool SharedMemory::CreateAndMapAnonymous(uint32 size) { | 97 bool SharedMemory::CreateAndMapAnonymous(uint32 size) { |
98 return CreateAnonymous(size) && Map(size); | 98 return CreateAnonymous(size) && Map(size); |
99 } | 99 } |
100 | 100 |
101 bool SharedMemory::CreateAnonymous(uint32 size) { | 101 bool SharedMemory::CreateAnonymous(uint32 size) { |
102 return CreateNamed("", false, size); | 102 return CreateNamed("", false, size); |
103 } | 103 } |
104 | 104 |
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168 created_size_ = size; | 168 created_size_ = size; |
169 } | 169 } |
170 if (fp == NULL) { | 170 if (fp == NULL) { |
171 #if !defined(OS_MACOSX) | 171 #if !defined(OS_MACOSX) |
172 PLOG(ERROR) << "Creating shared memory in " << path.value() << " failed"; | 172 PLOG(ERROR) << "Creating shared memory in " << path.value() << " failed"; |
173 FilePath dir = path.DirName(); | 173 FilePath dir = path.DirName(); |
174 if (access(dir.value().c_str(), W_OK | X_OK) < 0) { | 174 if (access(dir.value().c_str(), W_OK | X_OK) < 0) { |
175 PLOG(ERROR) << "Unable to access(W_OK|X_OK) " << dir.value(); | 175 PLOG(ERROR) << "Unable to access(W_OK|X_OK) " << dir.value(); |
176 if (dir.value() == "/dev/shm") { | 176 if (dir.value() == "/dev/shm") { |
177 LOG(FATAL) << "This is frequently caused by incorrect permissions on " | 177 LOG(FATAL) << "This is frequently caused by incorrect permissions on " |
178 << "/dev/shm. Try 'sudo chmod 1777 /dev/shm' to fix."; | 178 << "/dev/shm. Try 'sudo chmod 1777 /dev/shm' to fix."; |
179 } | 179 } |
180 } | 180 } |
181 #else | 181 #else |
182 PLOG(ERROR) << "Creating shared memory in " << path.value() << " failed"; | 182 PLOG(ERROR) << "Creating shared memory in " << path.value() << " failed"; |
183 #endif | 183 #endif |
184 return false; | 184 return false; |
185 } | 185 } |
186 | 186 |
187 return PrepareMapFile(fp); | 187 return PrepareMapFile(fp); |
188 } | 188 } |
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365 new_handle->fd = new_fd; | 365 new_handle->fd = new_fd; |
366 new_handle->auto_close = true; | 366 new_handle->auto_close = true; |
367 | 367 |
368 if (close_self) | 368 if (close_self) |
369 Close(); | 369 Close(); |
370 | 370 |
371 return true; | 371 return true; |
372 } | 372 } |
373 | 373 |
374 } // namespace base | 374 } // namespace base |
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