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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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116 | 116 |
117 SharedMemory::SharedMemory(const SharedMemoryHandle& handle, bool read_only) | 117 SharedMemory::SharedMemory(const SharedMemoryHandle& handle, bool read_only) |
118 : mapped_file_(handle.fd), | 118 : mapped_file_(handle.fd), |
119 readonly_mapped_file_(-1), | 119 readonly_mapped_file_(-1), |
120 mapped_size_(0), | 120 mapped_size_(0), |
121 memory_(NULL), | 121 memory_(NULL), |
122 read_only_(read_only), | 122 read_only_(read_only), |
123 requested_size_(0) { | 123 requested_size_(0) { |
124 } | 124 } |
125 | 125 |
126 SharedMemory::SharedMemory(const SharedMemoryHandle& handle, | |
127 bool read_only, | |
128 ProcessHandle process) | |
129 : mapped_file_(handle.fd), | |
130 readonly_mapped_file_(-1), | |
131 mapped_size_(0), | |
132 memory_(NULL), | |
133 read_only_(read_only), | |
134 requested_size_(0) { | |
135 // We don't handle this case yet (note the ignored parameter); let's die if | |
136 // someone comes calling. | |
137 NOTREACHED(); | |
138 } | |
139 | |
140 SharedMemory::~SharedMemory() { | 126 SharedMemory::~SharedMemory() { |
141 Unmap(); | 127 Unmap(); |
142 Close(); | 128 Close(); |
143 } | 129 } |
144 | 130 |
145 // static | 131 // static |
146 bool SharedMemory::IsHandleValid(const SharedMemoryHandle& handle) { | 132 bool SharedMemory::IsHandleValid(const SharedMemoryHandle& handle) { |
147 return handle.fd >= 0; | 133 return handle.fd >= 0; |
148 } | 134 } |
149 | 135 |
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506 | 492 |
507 if (close_self) { | 493 if (close_self) { |
508 Unmap(); | 494 Unmap(); |
509 Close(); | 495 Close(); |
510 } | 496 } |
511 | 497 |
512 return true; | 498 return true; |
513 } | 499 } |
514 | 500 |
515 } // namespace base | 501 } // namespace base |
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