| OLD | NEW |
| 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/memory/shared_memory.h" | 5 #include "base/memory/shared_memory.h" |
| 6 | 6 |
| 7 #include "base/logging.h" | 7 #include "base/logging.h" |
| 8 #include "base/strings/utf_string_conversions.h" | 8 #include "base/strings/utf_string_conversions.h" |
| 9 | 9 |
| 10 namespace { | 10 namespace { |
| (...skipping 95 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 106 DCHECK(!mapped_file_); | 106 DCHECK(!mapped_file_); |
| 107 if (options.size == 0) | 107 if (options.size == 0) |
| 108 return false; | 108 return false; |
| 109 | 109 |
| 110 // Check maximum accounting for overflow. | 110 // Check maximum accounting for overflow. |
| 111 if (options.size > | 111 if (options.size > |
| 112 static_cast<size_t>(std::numeric_limits<int>::max()) - kSectionMask) | 112 static_cast<size_t>(std::numeric_limits<int>::max()) - kSectionMask) |
| 113 return false; | 113 return false; |
| 114 | 114 |
| 115 size_t rounded_size = (options.size + kSectionMask) & ~kSectionMask; | 115 size_t rounded_size = (options.size + kSectionMask) & ~kSectionMask; |
| 116 name_ = ASCIIToWide(options.name == NULL ? "" : *options.name); | 116 name_ = ASCIIToWide(options.name_deprecated == NULL ? "" : |
| 117 *options.name_deprecated); |
| 117 mapped_file_ = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, | 118 mapped_file_ = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, |
| 118 PAGE_READWRITE, 0, static_cast<DWORD>(rounded_size), | 119 PAGE_READWRITE, 0, static_cast<DWORD>(rounded_size), |
| 119 name_.empty() ? NULL : name_.c_str()); | 120 name_.empty() ? NULL : name_.c_str()); |
| 120 if (!mapped_file_) | 121 if (!mapped_file_) |
| 121 return false; | 122 return false; |
| 122 | 123 |
| 123 requested_size_ = options.size; | 124 requested_size_ = options.size; |
| 124 | 125 |
| 125 // Check if the shared memory pre-exists. | 126 // Check if the shared memory pre-exists. |
| 126 if (GetLastError() == ERROR_ALREADY_EXISTS) { | 127 if (GetLastError() == ERROR_ALREADY_EXISTS) { |
| 127 // If the file already existed, set requested_size_ to 0 to show that | 128 // If the file already existed, set requested_size_ to 0 to show that |
| 128 // we don't know the size. | 129 // we don't know the size. |
| 129 requested_size_ = 0; | 130 requested_size_ = 0; |
| 130 if (!options.open_existing) { | 131 if (!options.open_existing_deprecated) { |
| 131 Close(); | 132 Close(); |
| 132 return false; | 133 return false; |
| 133 } | 134 } |
| 134 } | 135 } |
| 135 | 136 |
| 136 return true; | 137 return true; |
| 137 } | 138 } |
| 138 | 139 |
| 139 bool SharedMemory::Delete(const std::string& name) { | 140 bool SharedMemory::Delete(const std::string& name) { |
| 140 // intentionally empty -- there is nothing for us to do on Windows. | 141 // intentionally empty -- there is nothing for us to do on Windows. |
| (...skipping 107 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 248 void SharedMemory::UnlockDeprecated() { | 249 void SharedMemory::UnlockDeprecated() { |
| 249 DCHECK(lock_ != NULL); | 250 DCHECK(lock_ != NULL); |
| 250 ReleaseMutex(lock_); | 251 ReleaseMutex(lock_); |
| 251 } | 252 } |
| 252 | 253 |
| 253 SharedMemoryHandle SharedMemory::handle() const { | 254 SharedMemoryHandle SharedMemory::handle() const { |
| 254 return mapped_file_; | 255 return mapped_file_; |
| 255 } | 256 } |
| 256 | 257 |
| 257 } // namespace base | 258 } // namespace base |
| OLD | NEW |