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 47 namespace 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. 51 template<typename AddressType, typename EntryType> 52 class StaticAddressMap { 53 public: StaticAddressMap()54 StaticAddressMap(): map_() { } StaticAddressMap(const char * map_data)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