1    :  // Copyright 2015 Google Inc. All Rights Reserved.
   2    :  //
   3    :  // Licensed under the Apache License, Version 2.0 (the "License");
   4    :  // you may not use this file except in compliance with the License.
   5    :  // You may obtain a copy of the License at
   6    :  //
   7    :  //     http://www.apache.org/licenses/LICENSE-2.0
   8    :  //
   9    :  // Unless required by applicable law or agreed to in writing, software
  10    :  // distributed under the License is distributed on an "AS IS" BASIS,
  11    :  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12    :  // See the License for the specific language governing permissions and
  13    :  // limitations under the License.
  14    :  
  15    :  #ifndef SYZYGY_REFINERY_CORE_ADDRESS_H_
  16    :  #define SYZYGY_REFINERY_CORE_ADDRESS_H_
  17    :  
  18    :  #include <stdint.h>
  19    :  
  20    :  #include "syzygy/core/address_range.h"
  21    :  
  22    :  namespace refinery {
  23    :  
  24    :  // TODO(manzagop): consider making Address a class for stricter control on
  25    :  // conversions. In particular, we've hit an issue where an int* being
  26    :  // reinterpret_cast'ed to an Address triggered sign extension in the pointer.
  27    :  typedef uint64_t Address;
  28    :  typedef uint32_t Size;
  29    :  
  30    :  // AddressRange represents a range of memory with an address and a size.
  31    :  // TODO(manzagop): incorporate a notion of validity wrt the process (eg 32 vs
  32    :  // 64 bits).
  33    :  class AddressRange : public core::AddressRange<Address, Size> {
  34    :   public:
  35    :    using Super = core::AddressRange<Address, Size>;
  36    :  
  37  E :    AddressRange(Address addr, Size size) : Super(addr, size) {}
  38  E :    AddressRange() {}
  39    :  
  40    :    // Determines the validity of the address range. All users of |AddressRange|
  41    :    // expect a valid range.
  42    :    // @returns true if the range is valid, false otherwise (empty range or
  43    :    //   overflow).
  44    :    bool IsValid() const;
  45    :  };
  46    :  
  47    :  }  // namespace refinery
  48    :  
  49    :  #endif  // SYZYGY_REFINERY_CORE_ADDRESS_H_