| 1 | //===-- FormatCache.h ---------------------------------------------*- C++ |
|---|---|
| 2 | //-*-===// |
| 3 | // |
| 4 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 5 | // See https://llvm.org/LICENSE.txt for license information. |
| 6 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | #ifndef LLDB_DATAFORMATTERS_FORMATCACHE_H |
| 11 | #define LLDB_DATAFORMATTERS_FORMATCACHE_H |
| 12 | |
| 13 | #include <map> |
| 14 | #include <mutex> |
| 15 | |
| 16 | #include "lldb/Utility/ConstString.h" |
| 17 | #include "lldb/lldb-public.h" |
| 18 | |
| 19 | namespace lldb_private { |
| 20 | class FormatCache { |
| 21 | private: |
| 22 | struct Entry { |
| 23 | private: |
| 24 | bool m_format_cached : 1; |
| 25 | bool m_summary_cached : 1; |
| 26 | bool m_synthetic_cached : 1; |
| 27 | |
| 28 | lldb::TypeFormatImplSP m_format_sp; |
| 29 | lldb::TypeSummaryImplSP m_summary_sp; |
| 30 | lldb::SyntheticChildrenSP m_synthetic_sp; |
| 31 | |
| 32 | public: |
| 33 | Entry(); |
| 34 | |
| 35 | template<typename ImplSP> bool IsCached(); |
| 36 | bool IsFormatCached(); |
| 37 | bool IsSummaryCached(); |
| 38 | bool IsSyntheticCached(); |
| 39 | |
| 40 | void Get(lldb::TypeFormatImplSP &); |
| 41 | void Get(lldb::TypeSummaryImplSP &); |
| 42 | void Get(lldb::SyntheticChildrenSP &); |
| 43 | |
| 44 | void Set(lldb::TypeFormatImplSP); |
| 45 | void Set(lldb::TypeSummaryImplSP); |
| 46 | void Set(lldb::SyntheticChildrenSP); |
| 47 | }; |
| 48 | std::map<ConstString, Entry> m_entries; |
| 49 | std::recursive_mutex m_mutex; |
| 50 | |
| 51 | uint64_t m_cache_hits = 0; |
| 52 | uint64_t m_cache_misses = 0; |
| 53 | |
| 54 | public: |
| 55 | FormatCache() = default; |
| 56 | |
| 57 | template <typename ImplSP> bool Get(ConstString type, ImplSP &format_impl_sp); |
| 58 | void Set(ConstString type, lldb::TypeFormatImplSP &format_sp); |
| 59 | void Set(ConstString type, lldb::TypeSummaryImplSP &summary_sp); |
| 60 | void Set(ConstString type, lldb::SyntheticChildrenSP &synthetic_sp); |
| 61 | |
| 62 | void Clear(); |
| 63 | |
| 64 | uint64_t GetCacheHits() { return m_cache_hits; } |
| 65 | |
| 66 | uint64_t GetCacheMisses() { return m_cache_misses; } |
| 67 | }; |
| 68 | |
| 69 | } // namespace lldb_private |
| 70 | |
| 71 | #endif // LLDB_DATAFORMATTERS_FORMATCACHE_H |
| 72 |