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+// 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_range_map.h: StaticRangeMap.
+//
+// StaticRangeMap is similar as RangeMap. However, StaticRangeMap wraps a
+// StaticMap instead of std::map, and does not support dynamic operations like
+// StoreRange(...). StaticRangeMap provides same Retrieve*() interfaces as
+// RangeMap. Please see range_map.h for more documentation.
+//
+// Author: Siyang Xie (lambxsy@google.com)
+
+#ifndef PROCESSOR_STATIC_RANGE_MAP_H__
+#define PROCESSOR_STATIC_RANGE_MAP_H__
+
+
+#include "processor/static_map-inl.h"
+
+namespace google_breakpad {
+
+// AddressType is basic type, e.g.: integer types, pointers etc
+// EntryType could be a complex type, so we retrieve its pointer instead.
+template<typename AddressType, typename EntryType>
+class StaticRangeMap {
+ public:
+ StaticRangeMap(): map_() { }
+ explicit StaticRangeMap(const char *memory): map_(memory) { }
+
+ // Locates the range encompassing the supplied address. If there is
+ // no such range, returns false. entry_base and entry_size, if non-NULL,
+ // are set to the base and size of the entry's range.
+ bool RetrieveRange(const AddressType &address, const EntryType *&entry,
+ AddressType *entry_base, AddressType *entry_size) const;
+
+ // Locates the range encompassing the supplied address, if one exists.
+ // If no range encompasses the supplied address, locates the nearest range
+ // to the supplied address that is lower than the address. Returns false
+ // if no range meets these criteria. entry_base and entry_size, if
+ // non-NULL, are set to the base and size of the entry's range.
+ bool RetrieveNearestRange(const AddressType &address, const EntryType *&entry,
+ AddressType *entry_base, AddressType *entry_size)
+ const;
+
+ // Treating all ranges as a list ordered by the address spaces that they
+ // occupy, locates the range at the index specified by index. Returns
+ // false if index is larger than the number of ranges stored. entry_base
+ // and entry_size, if non-NULL, are set to the base and size of the entry's
+ // range.
+ //
+ // RetrieveRangeAtIndex is not optimized for speedy operation.
+ bool RetrieveRangeAtIndex(int index, const EntryType *&entry,
+ AddressType *entry_base, AddressType *entry_size)
+ const;
+
+ // Returns the number of ranges stored in the RangeMap.
+ inline int GetCount() const { return map_.size(); }
+
+ private:
+ friend class ModuleComparer;
+ class Range {
+ public:
+ AddressType base() const {
+ return *(reinterpret_cast<const AddressType*>(this));
+ }
+ const EntryType* entryptr() const {
+ return reinterpret_cast<const EntryType*>(this + sizeof(AddressType));
+ }
+ };
+
+ // Convenience types.
+ typedef StaticRangeMap* SelfPtr;
+ typedef StaticMap<AddressType, Range> AddressToRangeMap;
+ typedef typename AddressToRangeMap::const_iterator MapConstIterator;
+
+ AddressToRangeMap map_;
+};
+
+} // namespace google_breakpad
+
+#endif // PROCESSOR_STATIC_RANGE_MAP_H__