Upstream | cc2ee17 | 1970-01-12 13:46:40 +0000 | [diff] [blame^] | 1 | /** |
| 2 | * @file sample_container.h |
| 3 | * Internal implementation of sample container |
| 4 | * |
| 5 | * @remark Copyright 2002 OProfile authors |
| 6 | * @remark Read the file COPYING |
| 7 | * |
| 8 | * @author Philippe Elie |
| 9 | * @author John Levon |
| 10 | */ |
| 11 | |
| 12 | #ifndef SAMPLE_CONTAINER_H |
| 13 | #define SAMPLE_CONTAINER_H |
| 14 | |
| 15 | #include <map> |
| 16 | #include <set> |
| 17 | #include <string> |
| 18 | |
| 19 | #include "symbol.h" |
| 20 | #include "symbol_functors.h" |
| 21 | |
| 22 | /** |
| 23 | * Arbitrary container of sample entries. Can return |
| 24 | * number of samples for a file or line number and |
| 25 | * return the particular sample information for a VMA. |
| 26 | */ |
| 27 | class sample_container { |
| 28 | typedef std::pair<symbol_entry const *, bfd_vma> sample_index_t; |
| 29 | public: |
| 30 | typedef std::map<sample_index_t, sample_entry> samples_storage; |
| 31 | typedef samples_storage::const_iterator samples_iterator; |
| 32 | |
| 33 | /// return iterator to the first samples for this symbol |
| 34 | samples_iterator begin(symbol_entry const *) const; |
| 35 | /// return iterator to the last samples for this symbol |
| 36 | samples_iterator end(symbol_entry const *) const; |
| 37 | |
| 38 | /// return iterator to the first samples |
| 39 | samples_iterator begin() const; |
| 40 | /// return iterator to the last samples |
| 41 | samples_iterator end() const; |
| 42 | |
| 43 | /// insert a sample entry by creating a new entry or by cumulating |
| 44 | /// samples into an existing one. Can only be done before any lookups |
| 45 | void insert(symbol_entry const * symbol, sample_entry const &); |
| 46 | |
| 47 | /// return nr of samples in the given filename |
| 48 | count_array_t accumulate_samples(debug_name_id filename_id) const; |
| 49 | |
| 50 | /// return nr of samples at the given line nr in the given file |
| 51 | count_array_t accumulate_samples(debug_name_id, size_t linenr) const; |
| 52 | |
| 53 | /// return the sample entry for the given image_name and vma if any |
| 54 | sample_entry const * find_by_vma(symbol_entry const * symbol, |
| 55 | bfd_vma vma) const; |
| 56 | |
| 57 | private: |
| 58 | /// build the symbol by file-location cache |
| 59 | void build_by_loc() const; |
| 60 | |
| 61 | /// main sample entry container |
| 62 | samples_storage samples; |
| 63 | |
| 64 | typedef std::multiset<sample_entry const *, less_by_file_loc> |
| 65 | samples_by_loc_t; |
| 66 | |
| 67 | // must be declared after the samples_storage to ensure a |
| 68 | // correct life-time. |
| 69 | |
| 70 | /** |
| 71 | * Sample entries by file location. Lazily built when necessary, |
| 72 | * so mutable. |
| 73 | */ |
| 74 | mutable samples_by_loc_t samples_by_loc; |
| 75 | }; |
| 76 | |
| 77 | #endif /* SAMPLE_CONTAINER_H */ |