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Diffstat (limited to 'src/processor/static_address_map.h')
| -rw-r--r-- | src/processor/static_address_map.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/processor/static_address_map.h b/src/processor/static_address_map.h new file mode 100644 index 00000000..6bafc667 --- /dev/null +++ b/src/processor/static_address_map.h @@ -0,0 +1,78 @@ +// Copyright (c) 2010, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// static_address_map.h: StaticAddressMap. +// +// StaticAddressMap is a wrapper class of StaticMap, just as AddressMap wraps +// std::map. StaticAddressMap provides read-only Retrieve() operation, similar +// as AddressMap. However, the difference between StaticAddressMap and +// AddressMap is that StaticAddressMap does not support dynamic operation +// Store() due to the static nature of the underlying StaticMap. +// +// See address_map.h for reference. +// +// Author: Siyang Xie (lambxsy@google.com) + +#ifndef PROCESSOR_STATIC_ADDRESS_MAP_H__ +#define PROCESSOR_STATIC_ADDRESS_MAP_H__ + +#include "processor/static_map-inl.h" + +namespace google_breakpad { + +// AddressType MUST be a basic type, e.g.: integer types etc +// EntryType could be a complex type, so we retrieve its pointer instead. +template<typename AddressType, typename EntryType> +class StaticAddressMap { + public: + StaticAddressMap(): map_() { } + explicit StaticAddressMap(const char *map_data): map_(map_data) { } + + // Locates the entry stored at the highest address less than or equal to + // the address argument. If there is no such range, returns false. The + // entry is returned in entry, which is a required argument. If + // entry_address is not NULL, it will be set to the address that the entry + // was stored at. + bool Retrieve(const AddressType &address, + const EntryType *&entry, AddressType *entry_address) const; + + private: + friend class ModuleComparer; + // Convenience types. + typedef StaticAddressMap* SelfPtr; + typedef StaticMap<AddressType, EntryType> AddressToEntryMap; + typedef typename AddressToEntryMap::const_iterator MapConstIterator; + + AddressToEntryMap map_; +}; + +} // namespace google_breakpad + +#endif // PROCESSOR_STATIC_ADDRESS_MAP_H__ + |