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/thirdparty/breakpad/processor/static_address_map.h

http://github.com/tomahawk-player/tomahawk
C++ Header | 78 lines | 20 code | 11 blank | 47 comment | 0 complexity | 8717478c740fa5b7a09c09330b64526c MD5 | raw file
 1// Copyright (c) 2010, Google Inc.
 2// All rights reserved.
 3//
 4// Redistribution and use in source and binary forms, with or without
 5// modification, are permitted provided that the following conditions are
 6// met:
 7//
 8//     * Redistributions of source code must retain the above copyright
 9// notice, this list of conditions and the following disclaimer.
10//     * Redistributions in binary form must reproduce the above
11// copyright notice, this list of conditions and the following disclaimer
12// in the documentation and/or other materials provided with the
13// distribution.
14//     * Neither the name of Google Inc. nor the names of its
15// contributors may be used to endorse or promote products derived from
16// this software without specific prior written permission.
17//
18// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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