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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2008 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 #ifndef BASE_PICKLE_H__ | 5 #ifndef BASE_PICKLE_H__ |
6 #define BASE_PICKLE_H__ | 6 #define BASE_PICKLE_H__ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include <string> | 9 #include <string> |
10 | 10 |
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170 char* payload() { | 170 char* payload() { |
171 return reinterpret_cast<char*>(header_) + header_size_; | 171 return reinterpret_cast<char*>(header_) + header_size_; |
172 } | 172 } |
173 const char* payload() const { | 173 const char* payload() const { |
174 return reinterpret_cast<const char*>(header_) + header_size_; | 174 return reinterpret_cast<const char*>(header_) + header_size_; |
175 } | 175 } |
176 | 176 |
177 // Returns the address of the byte immediately following the currently valid | 177 // Returns the address of the byte immediately following the currently valid |
178 // header + payload. | 178 // header + payload. |
179 char* end_of_payload() { | 179 char* end_of_payload() { |
| 180 // We must have a valid header_. |
180 return payload() + payload_size(); | 181 return payload() + payload_size(); |
181 } | 182 } |
182 const char* end_of_payload() const { | 183 const char* end_of_payload() const { |
183 return payload() + payload_size(); | 184 // This object may be invalid. |
| 185 return header_ ? payload() + payload_size() : NULL; |
184 } | 186 } |
185 | 187 |
186 size_t capacity() const { | 188 size_t capacity() const { |
187 return capacity_; | 189 return capacity_; |
188 } | 190 } |
189 | 191 |
190 // Resizes the buffer for use when writing the specified amount of data. The | 192 // Resizes the buffer for use when writing the specified amount of data. The |
191 // location that the data should be written at is returned, or NULL if there | 193 // location that the data should be written at is returned, or NULL if there |
192 // was an error. Call EndWrite with the returned offset and the given length | 194 // was an error. Call EndWrite with the returned offset and the given length |
193 // to pad out for the next write. | 195 // to pad out for the next write. |
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231 // Allocation size of payload (or -1 if allocation is const). | 233 // Allocation size of payload (or -1 if allocation is const). |
232 size_t capacity_; | 234 size_t capacity_; |
233 size_t variable_buffer_offset_; // IF non-zero, then offset to a buffer. | 235 size_t variable_buffer_offset_; // IF non-zero, then offset to a buffer. |
234 | 236 |
235 FRIEND_TEST_ALL_PREFIXES(PickleTest, Resize); | 237 FRIEND_TEST_ALL_PREFIXES(PickleTest, Resize); |
236 FRIEND_TEST_ALL_PREFIXES(PickleTest, FindNext); | 238 FRIEND_TEST_ALL_PREFIXES(PickleTest, FindNext); |
237 FRIEND_TEST_ALL_PREFIXES(PickleTest, IteratorHasRoom); | 239 FRIEND_TEST_ALL_PREFIXES(PickleTest, IteratorHasRoom); |
238 }; | 240 }; |
239 | 241 |
240 #endif // BASE_PICKLE_H__ | 242 #endif // BASE_PICKLE_H__ |
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