1//===-- FormatCache.h ---------------------------------------------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef lldb_FormatCache_h_
11#define lldb_FormatCache_h_
12
13// C Includes
14// C++ Includes
15#include <map>
16
17// Other libraries and framework includes
18// Project includes
19#include "lldb/lldb-public.h"
20#include "lldb/Core/ConstString.h"
21#include "lldb/DataFormatters/FormatClasses.h"
22
23namespace lldb_private {
24class FormatCache
25{
26private:
27    struct Entry
28    {
29    private:
30        bool m_summary_cached : 1;
31        bool m_synthetic_cached : 1;
32
33        lldb::TypeSummaryImplSP m_summary_sp;
34        lldb::SyntheticChildrenSP m_synthetic_sp;
35    public:
36        Entry ();
37        Entry (const Entry& rhs);
38        Entry (lldb::TypeSummaryImplSP);
39        Entry (lldb::SyntheticChildrenSP);
40        Entry (lldb::TypeSummaryImplSP,lldb::SyntheticChildrenSP);
41
42        Entry& operator= (const Entry& rhs);
43
44        bool
45        IsSummaryCached ();
46
47        bool
48        IsSyntheticCached ();
49
50        lldb::TypeSummaryImplSP
51        GetSummary ();
52
53        lldb::SyntheticChildrenSP
54        GetSynthetic ();
55
56        void
57        SetSummary (lldb::TypeSummaryImplSP);
58
59        void
60        SetSynthetic (lldb::SyntheticChildrenSP);
61    };
62    typedef std::map<ConstString,Entry> CacheMap;
63    CacheMap m_map;
64    Mutex m_mutex;
65
66    uint64_t m_cache_hits;
67    uint64_t m_cache_misses;
68
69    Entry&
70    GetEntry (const ConstString& type);
71
72public:
73    FormatCache ();
74
75    bool
76    GetSummary (const ConstString& type,lldb::TypeSummaryImplSP& summary_sp);
77
78    bool
79    GetSynthetic (const ConstString& type,lldb::SyntheticChildrenSP& synthetic_sp);
80
81    void
82    SetSummary (const ConstString& type,lldb::TypeSummaryImplSP& summary_sp);
83
84    void
85    SetSynthetic (const ConstString& type,lldb::SyntheticChildrenSP& synthetic_sp);
86
87    void
88    Clear ();
89
90    uint64_t
91    GetCacheHits ()
92    {
93        return m_cache_hits;
94    }
95
96    uint64_t
97    GetCacheMisses ()
98    {
99        return m_cache_misses;
100    }
101};
102} // namespace lldb_private
103
104#endif	// lldb_FormatCache_h_
105