1// Copyright (c) 2010, Google Inc.
2// All rights reserved.
3//
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5// modification, are permitted provided that the following conditions are
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7//
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9// notice, this list of conditions and the following disclaimer.
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17//
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29
30// static_address_map.h: StaticAddressMap.
31//
32// StaticAddressMap is a wrapper class of StaticMap, just as AddressMap wraps
33// std::map. StaticAddressMap provides read-only Retrieve() operation, similar
34// as AddressMap. However, the difference between StaticAddressMap and
35// AddressMap is that StaticAddressMap does not support dynamic operation
36// Store() due to the static nature of the underlying StaticMap.
37//
38// See address_map.h for reference.
39//
40// Author: Siyang Xie (lambxsy@google.com)
41
42#ifndef PROCESSOR_STATIC_ADDRESS_MAP_H__
43#define PROCESSOR_STATIC_ADDRESS_MAP_H__
44
45#include "processor/static_map-inl.h"
46
47namespace google_breakpad {
48
49// AddressType MUST be a basic type, e.g.: integer types etc
50// EntryType could be a complex type, so we retrieve its pointer instead.
51template<typename AddressType, typename EntryType>
52class StaticAddressMap {
53 public:
54 StaticAddressMap(): map_() { }
55 explicit StaticAddressMap(const char* map_data): map_(map_data) { }
56
57 // Locates the entry stored at the highest address less than or equal to
58 // the address argument. If there is no such range, returns false. The
59 // entry is returned in entry, which is a required argument. If
60 // entry_address is not NULL, it will be set to the address that the entry
61 // was stored at.
62 bool Retrieve(const AddressType& address,
63 const EntryType*& entry, AddressType* entry_address) const;
64
65 private:
66 friend class ModuleComparer;
67 // Convenience types.
68 typedef StaticAddressMap* SelfPtr;
69 typedef StaticMap<AddressType, EntryType> AddressToEntryMap;
70 typedef typename AddressToEntryMap::const_iterator MapConstIterator;
71
72 AddressToEntryMap map_;
73};
74
75} // namespace google_breakpad
76
77#endif // PROCESSOR_STATIC_ADDRESS_MAP_H__
78
79