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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.
//
// map_serializers.h: defines templates for serializing std::map and its
// wrappers: AddressMap, RangeMap, and ContainedRangeMap.
//
// Author: Siyang Xie (lambxsy@google.com)
#ifndef PROCESSOR_MAP_SERIALIZERS_H__
#define PROCESSOR_MAP_SERIALIZERS_H__
#include <map>
#include <string>
#include "processor/simple_serializer.h"
#include "processor/address_map-inl.h"
#include "processor/range_map-inl.h"
#include "processor/contained_range_map-inl.h"
namespace google_breakpad {
// StdMapSerializer allocates memory and serializes an std::map instance into a
// chunk of memory data.
template<typename Key, typename Value>
class StdMapSerializer {
public:
// Calculate the memory size of serialized data.
size_t SizeOf(const std::map<Key, Value> &m) const;
// Writes the serialized data to memory with start address = dest,
// and returns the "end" of data, i.e., return the address follow the final
// byte of data.
// NOTE: caller has to allocate enough memory before invoke Write() method.
char* Write(const std::map<Key, Value> &m, char* dest) const;
// Serializes a std::map object into a chunk of memory data with format
// described in "StaticMap.h" comment.
// Returns a pointer to the serialized data. If size != NULL, *size is set
// to the size of serialized data, i.e., SizeOf(m).
// Caller has the ownership of memory allocated as "new char[]".
char* Serialize(const std::map<Key, Value> &m, unsigned int *size) const;
private:
SimpleSerializer<Key> key_serializer_;
SimpleSerializer<Value> value_serializer_;
};
// AddressMapSerializer allocates memory and serializes an AddressMap into a
// chunk of memory data.
template<typename Addr, typename Entry>
class AddressMapSerializer {
public:
// Calculate the memory size of serialized data.
size_t SizeOf(const AddressMap<Addr, Entry> &m) const {
return std_map_serializer_.SizeOf(m.map_);
}
// Write the serialized data to specified memory location. Return the "end"
// of data, i.e., return the address after the final byte of data.
// NOTE: caller has to allocate enough memory before invoke Write() method.
char* Write(const AddressMap<Addr, Entry> &m, char *dest) const {
return std_map_serializer_.Write(m.map_, dest);
}
// Serializes an AddressMap object into a chunk of memory data.
// Returns a pointer to the serialized data. If size != NULL, *size is set
// to the size of serialized data, i.e., SizeOf(m).
// Caller has the ownership of memory allocated as "new char[]".
char* Serialize(const AddressMap<Addr, Entry> &m, unsigned int *size) const {
return std_map_serializer_.Serialize(m.map_, size);
}
private:
// AddressMapSerializer is a simple wrapper of StdMapSerializer, just as
// AddressMap is a simple wrapper of std::map.
StdMapSerializer<Addr, Entry> std_map_serializer_;
};
// RangeMapSerializer allocates memory and serializes a RangeMap instance into a
// chunk of memory data.
template<typename Address, typename Entry>
class RangeMapSerializer {
public:
// Calculate the memory size of serialized data.
size_t SizeOf(const RangeMap<Address, Entry> &m) const;
// Write the serialized data to specified memory location. Return the "end"
// of data, i.e., return the address after the final byte of data.
// NOTE: caller has to allocate enough memory before invoke Write() method.
char* Write(const RangeMap<Address, Entry> &m, char* dest) const;
// Serializes a RangeMap object into a chunk of memory data.
// Returns a pointer to the serialized data. If size != NULL, *size is set
// to the size of serialized data, i.e., SizeOf(m).
// Caller has the ownership of memory allocated as "new char[]".
char* Serialize(const RangeMap<Address, Entry> &m, unsigned int *size) const;
private:
// Convenient type name for Range.
typedef typename RangeMap<Address, Entry>::Range Range;
// Serializer for RangeMap's key and Range::base_.
SimpleSerializer<Address> address_serializer_;
// Serializer for RangeMap::Range::entry_.
SimpleSerializer<Entry> entry_serializer_;
};
// ContainedRangeMapSerializer allocates memory and serializes a
// ContainedRangeMap instance into a chunk of memory data.
template<class AddrType, class EntryType>
class ContainedRangeMapSerializer {
public:
// Calculate the memory size of serialized data.
size_t SizeOf(const ContainedRangeMap<AddrType, EntryType> *m) const;
// Write the serialized data to specified memory location. Return the "end"
// of data, i.e., return the address after the final byte of data.
// NOTE: caller has to allocate enough memory before invoke Write() method.
char* Write(const ContainedRangeMap<AddrType, EntryType> *m,
char* dest) const;
// Serializes a ContainedRangeMap object into a chunk of memory data.
// Returns a pointer to the serialized data. If size != NULL, *size is set
// to the size of serialized data, i.e., SizeOf(m).
// Caller has the ownership of memory allocated as "new char[]".
char* Serialize(const ContainedRangeMap<AddrType, EntryType> *m,
unsigned int *size) const;
private:
// Convenient type name for the underlying map type.
typedef std::map<AddrType, ContainedRangeMap<AddrType, EntryType>*> Map;
// Serializer for addresses and entries stored in ContainedRangeMap.
SimpleSerializer<AddrType> addr_serializer_;
SimpleSerializer<EntryType> entry_serializer_;
};
} // namespace google_breakpad
#endif // PROCESSOR_MAP_SERIALIZERS_H__
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