| // Copyright 2012 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| // Declares a PDB file, which is an in-memory representation of a PDB file. |
| // A PDB file consists of a collection of numbered PDB streams. The streams |
| // themselves obey certain formats and conventions but these are not enforced |
| // by this naive representation. |
| |
| #ifndef SYZYGY_PDB_PDB_FILE_H_ |
| #define SYZYGY_PDB_PDB_FILE_H_ |
| |
| #include <vector> |
| |
| #include "syzygy/pdb/pdb_stream.h" |
| |
| namespace pdb { |
| |
| // A simple representation of a PDB file as a collection of numbered streams. |
| // This object owns all of the streams referred to by it and maintains |
| // responsibility for cleaning them up on destruction. |
| class PdbFile { |
| public: |
| PdbFile(); |
| ~PdbFile(); |
| |
| // Clears all streams. After calling this the PdbFile is in the same state as |
| // after construction. |
| void Clear(); |
| |
| // Accesses the nth stream. |
| // @param index the index of the nth stream. |
| // @returns a pointer to the stream, NULL if it does not exist. |
| scoped_refptr<PdbStream> GetStream(uint32 index) const; |
| |
| // Adds a new stream to this PDB file, returning the index of the newly |
| // generated stream. |
| // @param pdb_stream a pointer to a heap allocated stream object This may be |
| // NULL, indicating that the nth stream exists but is empty. |
| // @returns the index of the added stream. |
| size_t AppendStream(PdbStream* pdb_stream); |
| |
| // Sets the nth stream. Overwrites an existing stream if there is one. |
| // @param index the index of the stream. This must be >= 0, and must be |
| // a stream index that already exists. |
| // @param pdb_stream a pointer to the heap allocated stream to be placed at |
| // the given position. This may be NULL, which is equivalent to erasing |
| // the given stream. |
| void ReplaceStream(uint32 index, PdbStream* pdb_stream); |
| |
| // Sets the nth stream. Overwrites an existing stream if there is one. |
| // @param index the index of the stream. |
| // @param pdb_stream a pointer to the heap allocated stream to be placed at |
| // the given position. This may be NULL, which is equivalent to erasing |
| // the given stream. |
| void SetStream(uint32 index, PdbStream* pdb_stream); |
| |
| // Returns the number of streams in the PDB file. There are streams with |
| // IDs 0 through StreamCount() - 1. |
| // @returns the number of streams in the PDB file. |
| size_t StreamCount() const { return streams_.size(); } |
| |
| private: |
| // The streams are implicitly numbered simply by their position in this |
| // vector. |
| std::vector<scoped_refptr<PdbStream>> streams_; |
| }; |
| |
| } // namespace pdb |
| |
| #endif // SYZYGY_PDB_PDB_FILE_H_ |