Home | History | Annotate | Download | only in processor 
      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-inl.h: StaticAddressMap implementation.
     31 //
     32 // See static_address_map.h for documentation.
     33 //
     34 // Author: Siyang Xie (lambxsy (at) google.com)
     35 
     36 #ifndef PROCESSOR_STATIC_ADDRESS_MAP_INL_H__
     37 #define PROCESSOR_STATIC_ADDRESS_MAP_INL_H__
     38 
     39 #include "processor/static_address_map.h"
     40 
     41 #include "processor/logging.h"
     42 
     43 namespace google_breakpad {
     44 
     45 template<typename AddressType, typename EntryType>
     46 bool StaticAddressMap<AddressType, EntryType>::Retrieve(
     47     const AddressType &address,
     48     const EntryType *&entry, AddressType *entry_address) const {
     49 
     50   // upper_bound gives the first element whose key is greater than address,
     51   // but we want the first element whose key is less than or equal to address.
     52   // Decrement the iterator to get there, but not if the upper_bound already
     53   // points to the beginning of the map - in that case, address is lower than
     54   // the lowest stored key, so return false.
     55 
     56   MapConstIterator iterator = map_.upper_bound(address);
     57   if (iterator == map_.begin())
     58     return false;
     59   --iterator;
     60 
     61   entry = iterator.GetValuePtr();
     62   // Make sure AddressType is a copyable basic type
     63   if (entry_address)
     64     *entry_address = iterator.GetKey();
     65 
     66   return true;
     67 }
     68 
     69 }  // namespace google_breakpad
     70 
     71 #endif  // PROCESSOR_STATIC_ADDRESS_MAP_INL_H__
     72