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| 1 // Copyright 2015 The Crashpad Authors. All rights reserved. |
| 2 // |
| 3 // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 // you may not use this file except in compliance with the License. |
| 5 // You may obtain a copy of the License at |
| 6 // |
| 7 // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 // |
| 9 // Unless required by applicable law or agreed to in writing, software |
| 10 // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 // See the License for the specific language governing permissions and |
| 13 // limitations under the License. |
| 14 |
| 15 #ifndef CRASHPAD_UTIL_FILE_FILE_SEEKER_H_ |
| 16 #define CRASHPAD_UTIL_FILE_FILE_SEEKER_H_ |
| 17 |
| 18 #include "util/file/file_io.h" |
| 19 |
| 20 namespace crashpad { |
| 21 |
| 22 //! \brief An interface to seek in files and other file-like objects with |
| 23 //! semantics matching the underlying platform (POSIX or Windows). |
| 24 class FileSeekerInterface { |
| 25 public: |
| 26 //! \brief Wraps LoggingFileSeek() or provides an alternate implementation |
| 27 //! with identical semantics. |
| 28 //! |
| 29 //! \return The return value of LoggingFileSeek(). `-1` on failure, |
| 30 //! with an error message logged. |
| 31 virtual FileOffset Seek(FileOffset offset, int whence) = 0; |
| 32 |
| 33 protected: |
| 34 ~FileSeekerInterface() {} |
| 35 }; |
| 36 |
| 37 } // namespace crashpad |
| 38 |
| 39 #endif // CRASHPAD_UTIL_FILE_FILE_SEEKER_H_ |
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